SYMBOLCOMMON_NAMEaka. SYNONYMS
win.smokeloader (Back to overview)

SmokeLoader

aka: Dofoil, Sharik, Smoke, Smoke Loader

Actor(s): SMOKY SPIDER

URLhaus            

The SmokeLoader family is a generic backdoor with a range of capabilities which depend on the modules included in any given build of the malware. The malware is delivered in a variety of ways and is broadly associated with criminal activity. The malware frequently tries to hide its C2 activity by generating requests to legitimate sites such as microsoft.com, bing.com, adobe.com, and others. Typically the actual Download returns an HTTP 404 but still contains data in the Response Body.

References
2021-06-17x0r19x91.gitlab.ioSuvaditya Sur
@online{sur:20210617:analysis:74f0f46, author = {Suvaditya Sur}, title = {{Analysis of SmokeLoader}}, date = {2021-06-17}, organization = {x0r19x91.gitlab.io}, url = {https://x0r19x91.in/malware-analysis/smokeloader/}, language = {English}, urldate = {2021-09-19} } Analysis of SmokeLoader
SmokeLoader
2021-06-10ZAYOTEMFatih YILMAZ, Buğra KÖSE, İrem ALKAŞİ, Esmanur ALİCAN, Çağlar YÜN
@online{yilmaz:20210610:smokeloader:6699a4f, author = {Fatih YILMAZ and Buğra KÖSE and İrem ALKAŞİ and Esmanur ALİCAN and Çağlar YÜN}, title = {{SmokeLoader Technical Analysis Report}}, date = {2021-06-10}, organization = {ZAYOTEM}, url = {https://drive.google.com/file/d/13BsHZn-KVLhwrtgS2yKJAM2_U_XZlwoD/view}, language = {English}, urldate = {2021-06-16} } SmokeLoader Technical Analysis Report
SmokeLoader
2021-05-26DeepInstinctRon Ben Yizhak
@online{yizhak:20210526:deep:c123a19, author = {Ron Ben Yizhak}, title = {{A Deep Dive into Packing Software CryptOne}}, date = {2021-05-26}, organization = {DeepInstinct}, url = {https://www.deepinstinct.com/2021/05/26/deep-dive-packing-software-cryptone/}, language = {English}, urldate = {2021-06-22} } A Deep Dive into Packing Software CryptOne
Cobalt Strike Dridex Emotet Gozi ISFB Mailto QakBot SmokeLoader WastedLocker Zloader
2021-05-19Intel 471Intel 471
@online{471:20210519:look:5ba9516, author = {Intel 471}, title = {{Look how many cybercriminals love Cobalt Strike}}, date = {2021-05-19}, organization = {Intel 471}, url = {https://www.intel471.com/blog/Cobalt-strike-cybercriminals-trickbot-qbot-hancitor}, language = {English}, urldate = {2021-05-19} } Look how many cybercriminals love Cobalt Strike
BazarBackdoor Cobalt Strike Hancitor QakBot SmokeLoader SystemBC TrickBot
2021-04-12PTSecurityPTSecurity
@online{ptsecurity:20210412:paas:1d06836, author = {PTSecurity}, title = {{PaaS, or how hackers evade antivirus software}}, date = {2021-04-12}, organization = {PTSecurity}, url = {https://www.ptsecurity.com/ww-en/analytics/pt-esc-threat-intelligence/paas-or-how-hackers-evade-antivirus-software/}, language = {English}, urldate = {2021-04-12} } PaaS, or how hackers evade antivirus software
Amadey Bunitu Cerber Dridex ISFB KPOT Stealer Mailto Nemty Phobos Pony Predator The Thief QakBot Raccoon RTM SmokeLoader Zloader
2021-03-21BlackberryBlackberry Research
@techreport{research:20210321:2021:a393473, author = {Blackberry Research}, title = {{2021 Threat Report}}, date = {2021-03-21}, institution = {Blackberry}, url = {https://www.blackberry.com/content/dam/blackberry-com/asset/enterprise/pdf/direct/report-bb-2021-threat-report.pdf}, language = {English}, urldate = {2021-03-25} } 2021 Threat Report
Bashlite FritzFrog IPStorm Mirai Tsunami elf.wellmess AppleJeus Dacls EvilQuest Manuscrypt Astaroth BazarBackdoor Cerber Cobalt Strike Emotet FinFisher RAT Kwampirs MimiKatz NjRAT Ryuk SmokeLoader TrickBot
2021-03-18ProofpointBrandon Murphy, Dennis Schwarz, Jack Mott, Proofpoint Threat Research Team
@online{murphy:20210318:now:d4bd40e, author = {Brandon Murphy and Dennis Schwarz and Jack Mott and Proofpoint Threat Research Team}, title = {{Now You See It, Now You Don’t: CopperStealer Performs Widespread Theft}}, date = {2021-03-18}, organization = {Proofpoint}, url = {https://www.proofpoint.com/us/blog/threat-insight/now-you-see-it-now-you-dont-copperstealer-performs-widespread-theft}, language = {English}, urldate = {2021-03-19} } Now You See It, Now You Don’t: CopperStealer Performs Widespread Theft
CopperStealer SmokeLoader
2021-02-23CrowdStrikeCrowdStrike
@techreport{crowdstrike:20210223:2021:bf5bc4f, author = {CrowdStrike}, title = {{2021 Global Threat Report}}, date = {2021-02-23}, institution = {CrowdStrike}, url = {https://go.crowdstrike.com/rs/281-OBQ-266/images/Report2021GTR.pdf}, language = {English}, urldate = {2021-02-25} } 2021 Global Threat Report
RansomEXX Amadey Anchor Avaddon BazarBackdoor Clop Cobalt Strike Conti Cutwail DanaBot DarkSide DoppelPaymer Dridex Egregor Emotet Hakbit IcedID JSOutProx KerrDown LockBit Mailto Maze MedusaLocker Mespinoza Mount Locker NedDnLoader Nemty Pay2Key PlugX Pushdo PwndLocker PyXie QakBot Quasar RAT RagnarLocker Ragnarok RansomEXX REvil Ryuk Sekhmet ShadowPad SmokeLoader Snake SUNBURST SunCrypt TEARDROP TrickBot WastedLocker Winnti Zloader KNOCKOUT SPIDER OUTLAW SPIDER RIDDLE SPIDER SOLAR SPIDER VIKING SPIDER
2021-02-18PTSecurityPTSecurity
@online{ptsecurity:20210218:httpswwwptsecuritycomwwenanalyticsantisandboxtechniques:d616c1f, author = {PTSecurity}, title = {{https://www.ptsecurity.com/ww-en/analytics/antisandbox-techniques/}}, date = {2021-02-18}, organization = {PTSecurity}, url = {https://www.ptsecurity.com/ww-en/analytics/antisandbox-techniques/}, language = {English}, urldate = {2021-02-25} } https://www.ptsecurity.com/ww-en/analytics/antisandbox-techniques/
Poet RAT Gravity RAT Ketrican Okrum OopsIE Remcos RogueRobinNET RokRAT SmokeLoader
2021-02-02CRONUPGermán Fernández
@online{fernndez:20210202:de:6ff4f3a, author = {Germán Fernández}, title = {{De ataque con Malware a incidente de Ransomware}}, date = {2021-02-02}, organization = {CRONUP}, url = {https://www.cronup.com/post/de-ataque-con-malware-a-incidente-de-ransomware}, language = {Spanish}, urldate = {2021-03-02} } De ataque con Malware a incidente de Ransomware
Avaddon BazarBackdoor Buer Clop Cobalt Strike Conti DanaBot Dharma Dridex Egregor Emotet Empire Downloader FriedEx GootKit IcedID MegaCortex Nemty Phorpiex PwndLocker PyXie QakBot RansomEXX REvil Ryuk SDBbot SmokeLoader TrickBot Zloader
2021-02-01MicrosoftMicrosoft 365 Defender Threat Intelligence Team
@online{team:20210201:what:2e12897, author = {Microsoft 365 Defender Threat Intelligence Team}, title = {{What tracking an attacker email infrastructure tells us about persistent cybercriminal operations}}, date = {2021-02-01}, organization = {Microsoft}, url = {https://www.microsoft.com/security/blog/2021/02/01/what-tracking-an-attacker-email-infrastructure-tells-us-about-persistent-cybercriminal-operations/}, language = {English}, urldate = {2021-02-02} } What tracking an attacker email infrastructure tells us about persistent cybercriminal operations
Dridex Emotet Makop Ransomware SmokeLoader TrickBot
2021-01-18Medium csis-techblogBenoît Ancel
@online{ancel:20210118:gcleaner:f8b9064, author = {Benoît Ancel}, title = {{GCleaner — Garbage Provider Since 2019}}, date = {2021-01-18}, organization = {Medium csis-techblog}, url = {https://medium.com/csis-techblog/gcleaner-garbage-provider-since-2019-2708e7c87a8a}, language = {English}, urldate = {2021-01-21} } GCleaner — Garbage Provider Since 2019
Amadey Ficker Stealer Raccoon RedLine Stealer SmokeLoader STOP
2021-01-09Marco Ramilli's BlogMarco Ramilli
@online{ramilli:20210109:command:d720b27, author = {Marco Ramilli}, title = {{Command and Control Traffic Patterns}}, date = {2021-01-09}, organization = {Marco Ramilli's Blog}, url = {https://marcoramilli.com/2021/01/09/c2-traffic-patterns-personal-notes/}, language = {English}, urldate = {2021-05-17} } Command and Control Traffic Patterns
ostap LaZagne Agent Tesla Azorult Buer Cobalt Strike DanaBot DarkComet Dridex Emotet Formbook IcedID ISFB NetWire RC PlugX Quasar RAT SmokeLoader TrickBot
2020-12-230xC0DECAFEThomas Barabosch
@online{barabosch:20201223:detect:bd873bc, author = {Thomas Barabosch}, title = {{Detect RC4 in (malicious) binaries}}, date = {2020-12-23}, organization = {0xC0DECAFE}, url = {https://0xc0decafe.com/2020/12/23/detect-rc4-in-malicious-binaries}, language = {English}, urldate = {2020-12-26} } Detect RC4 in (malicious) binaries
SmokeLoader Zloader
2020-12-21Cisco TalosJON MUNSHAW
@online{munshaw:20201221:2020:4a88f84, author = {JON MUNSHAW}, title = {{2020: The year in malware}}, date = {2020-12-21}, organization = {Cisco Talos}, url = {https://blog.talosintelligence.com/2020/12/2020-year-in-malware.html}, language = {English}, urldate = {2020-12-26} } 2020: The year in malware
WolfRAT Prometei Poet RAT Agent Tesla Astaroth Ave Maria CRAT Emotet Gozi IndigoDrop JhoneRAT Nanocore RAT NjRAT Oblique RAT SmokeLoader StrongPity WastedLocker Zloader
2020-12-17TelekomThomas Barabosch
@online{barabosch:20201217:smokeloader:937c780, author = {Thomas Barabosch}, title = {{Smokeloader is still alive and kickin’ – A new way to encrypt CC server URLs}}, date = {2020-12-17}, organization = {Telekom}, url = {https://www.telekom.com/en/blog/group/article/a-new-way-to-encrypt-cc-server-urls-614886}, language = {English}, urldate = {2020-12-18} } Smokeloader is still alive and kickin’ – A new way to encrypt CC server URLs
SmokeLoader
2020-09-09MalwarebytesThreat Intelligence Team
@online{team:20200909:malvertising:ed1c3b8, author = {Threat Intelligence Team}, title = {{Malvertising campaigns come back in full swing}}, date = {2020-09-09}, organization = {Malwarebytes}, url = {https://blog.malwarebytes.com/social-engineering/2020/09/malvertising-campaigns-come-back-in-full-swing/}, language = {English}, urldate = {2020-09-15} } Malvertising campaigns come back in full swing
Raccoon SmokeLoader
2020-09-02Cisco TalosHolger Unterbrink, Edmund Brumaghin
@online{unterbrink:20200902:salfram:74ae3c9, author = {Holger Unterbrink and Edmund Brumaghin}, title = {{Salfram: Robbing the place without removing your name tag}}, date = {2020-09-02}, organization = {Cisco Talos}, url = {https://blog.talosintelligence.com/2020/09/salfram-robbing-place-without-removing.html}, language = {English}, urldate = {2020-09-03} } Salfram: Robbing the place without removing your name tag
Ave Maria ISFB SmokeLoader Zloader
2020-08-27Hatching.ioPete Cowman
@online{cowman:20200827:smokeloader:6b86b56, author = {Pete Cowman}, title = {{Smokeloader Analysis and More Family Detections}}, date = {2020-08-27}, organization = {Hatching.io}, url = {https://hatching.io/blog/tt-2020-08-27/}, language = {English}, urldate = {2020-09-03} } Smokeloader Analysis and More Family Detections
SmokeLoader
2020-06-22security.neurolabsMarcos Alvares
@online{alvares:20200622:comparative:270905b, author = {Marcos Alvares}, title = {{Comparative analysis between Bindiff and Diaphora - Patched Smokeloader Study Case}}, date = {2020-06-22}, organization = {security.neurolabs}, url = {http://security.neurolabs.club/2020/04/diffing-malware-samples-using-bindiff.html}, language = {English}, urldate = {2020-06-24} } Comparative analysis between Bindiff and Diaphora - Patched Smokeloader Study Case
SmokeLoader
2020-06-21N1ght-W0lf BlogAbdallah Elshinbary
@online{elshinbary:20200621:deep:1a39a3f, author = {Abdallah Elshinbary}, title = {{Deep Analysis of SmokeLoader}}, date = {2020-06-21}, organization = {N1ght-W0lf Blog}, url = {https://n1ght-w0lf.github.io/malware%20analysis/smokeloader/}, language = {English}, urldate = {2020-06-22} } Deep Analysis of SmokeLoader
SmokeLoader
2020-06-10security.neurolabsMarcos Alvares
@online{alvares:20200610:unpacking:38f29d6, author = {Marcos Alvares}, title = {{Unpacking Smokeloader and Reconstructing PE Programatically using LIEF}}, date = {2020-06-10}, organization = {security.neurolabs}, url = {http://security.neurolabs.club/2020/06/unpacking-smokeloader-and.html}, language = {English}, urldate = {2021-09-19} } Unpacking Smokeloader and Reconstructing PE Programatically using LIEF
SmokeLoader
2020-05-24Malware and StuffAndreas Klopsch
@online{klopsch:20200524:examining:842b499, author = {Andreas Klopsch}, title = {{Examining Smokeloader’s Anti Hooking technique}}, date = {2020-05-24}, organization = {Malware and Stuff}, url = {https://malwareandstuff.com/examining-smokeloaders-anti-hooking-technique/}, language = {English}, urldate = {2020-05-25} } Examining Smokeloader’s Anti Hooking technique
SmokeLoader
2020-05-24Positive TechnologiesPT ESC Threat Intelligence
@online{intelligence:20200524:operation:2ce432b, author = {PT ESC Threat Intelligence}, title = {{Operation TA505: network infrastructure. Part 3.}}, date = {2020-05-24}, organization = {Positive Technologies}, url = {https://www.ptsecurity.com/ww-en/analytics/pt-esc-threat-intelligence/operation-ta505-part3/}, language = {English}, urldate = {2020-11-23} } Operation TA505: network infrastructure. Part 3.
AndroMut Buhtrap SmokeLoader
2020-03-04CrowdStrikeCrowdStrike
@techreport{crowdstrike:20200304:2020:818c85f, author = {CrowdStrike}, title = {{2020 CrowdStrike Global Threat Report}}, date = {2020-03-04}, institution = {CrowdStrike}, url = {https://go.crowdstrike.com/rs/281-OBQ-266/images/Report2020CrowdStrikeGlobalThreatReport.pdf}, language = {English}, urldate = {2020-07-24} } 2020 CrowdStrike Global Threat Report
MESSAGETAP More_eggs 8.t Dropper Anchor BabyShark BadNews Clop Cobalt Strike CobInt Cobra Carbon System Cutwail DanaBot Dharma DoppelDridex DoppelPaymer Dridex Emotet FlawedAmmyy FriedEx Gandcrab Get2 IcedID ISFB KerrDown LightNeuron LockerGoga Maze MECHANICAL Necurs Nokki Outlook Backdoor Phobos Predator The Thief QakBot REvil RobinHood Ryuk SDBbot Skipper SmokeLoader TerraRecon TerraStealer TerraTV TinyLoader TrickBot vidar Winnti ANTHROPOID SPIDER APT31 APT39 BlackTech BuhTrap Charming Kitten CLOCKWORK SPIDER DOPPEL SPIDER FIN7 Gamaredon Group Leviathan MONTY SPIDER Mustang Panda NARWHAL SPIDER NOCTURNAL SPIDER PINCHY SPIDER Pirate Panda SALTY SPIDER SCULLY SPIDER SMOKY SPIDER Thrip VENOM SPIDER
2020-02-18Github (DanusMinimus)Dan Lisichkin
@online{lisichkin:20200218:analyzing:f805dad, author = {Dan Lisichkin}, title = {{Analyzing Modern Malware Techniques Part 4: I’m afraid of no packer(Part 1 of 2)}}, date = {2020-02-18}, organization = {Github (DanusMinimus)}, url = {https://danusminimus.github.io/Analyzing-Modern-Malware-Techniques-Part-4/}, language = {English}, urldate = {2020-02-25} } Analyzing Modern Malware Techniques Part 4: I’m afraid of no packer(Part 1 of 2)
SmokeLoader
2019-11-21SentinelOneMario Ciccarelli
@online{ciccarelli:20191121:going:0e7cac5, author = {Mario Ciccarelli}, title = {{Going Deep | A Guide to Reversing Smoke Loader Malware}}, date = {2019-11-21}, organization = {SentinelOne}, url = {https://www.sentinelone.com/blog/going-deep-a-guide-to-reversing-smoke-loader-malware/}, language = {English}, urldate = {2020-01-07} } Going Deep | A Guide to Reversing Smoke Loader Malware
SmokeLoader
2019-10-31security.neurolabsMarcos Alvares
@online{alvares:20191031:dynamic:a295d00, author = {Marcos Alvares}, title = {{Dynamic Imports and Working Around Indirect Calls - Smokeloader Study Case}}, date = {2019-10-31}, organization = {security.neurolabs}, url = {http://security.neurolabs.club/2019/10/dynamic-imports-and-working-around.html}, language = {English}, urldate = {2021-09-19} } Dynamic Imports and Working Around Indirect Calls - Smokeloader Study Case
SmokeLoader
2019-08-05security.neurolabsMarcos Alvares
@online{alvares:20190805:smokeloaders:3ee435d, author = {Marcos Alvares}, title = {{Smokeloader's Hardcoded Domains - Sneaky Third Party Vendor or Cheap Buyer?}}, date = {2019-08-05}, organization = {security.neurolabs}, url = {http://security.neurolabs.club/2019/08/smokeloaders-hardcoded-domains-sneaky.html}, language = {English}, urldate = {2021-09-19} } Smokeloader's Hardcoded Domains - Sneaky Third Party Vendor or Cheap Buyer?
SmokeLoader
2019-07-09Check PointIsrael Gubi
@online{gubi:20190709:2019:38d9134, author = {Israel Gubi}, title = {{The 2019 Resurgence of Smokeloader}}, date = {2019-07-09}, organization = {Check Point}, url = {https://research.checkpoint.com/2019-resurgence-of-smokeloader/}, language = {English}, urldate = {2020-01-10} } The 2019 Resurgence of Smokeloader
SmokeLoader
2019-05-02ProofpointBryan Campbell, Proofpoint Threat Insight Team
@online{campbell:20190502:2019:1fe00f6, author = {Bryan Campbell and Proofpoint Threat Insight Team}, title = {{2019: The Return of Retefe}}, date = {2019-05-02}, organization = {Proofpoint}, url = {https://www.proofpoint.com/us/threat-insight/post/2019-return-retefe}, language = {English}, urldate = {2019-12-20} } 2019: The Return of Retefe
Dok Retefe SmokeLoader
2018-09-18int 0xcc blogRaashid Bhat
@online{bhat:20180918:taste:e7dd98d, author = {Raashid Bhat}, title = {{A taste of our own medicine: How SmokeLoader is deceiving configuration extraction by using binary code as bait}}, date = {2018-09-18}, organization = {int 0xcc blog}, url = {https://int0xcc.svbtle.com/a-taste-of-our-own-medicine-how-smokeloader-is-deceiving-dynamic-configuration-extraction-by-using-binary-code-as-bait}, language = {English}, urldate = {2020-01-10} } A taste of our own medicine: How SmokeLoader is deceiving configuration extraction by using binary code as bait
SmokeLoader
2018-08-14Plug it, play it, burn it, rip itAlberto Ortega
@online{ortega:20180814:antihooking:b194a7c, author = {Alberto Ortega}, title = {{Anti-Hooking checks of SmokeLoader 2018}}, date = {2018-08-14}, organization = {Plug it, play it, burn it, rip it}, url = {https://blog.badtrace.com/post/anti-hooking-checks-of-smokeloader-2018/}, language = {English}, urldate = {2020-01-13} } Anti-Hooking checks of SmokeLoader 2018
SmokeLoader
2018-07-18CERT.PLMichał Praszmo
@online{praszmo:20180718:dissecting:aa5eca1, author = {Michał Praszmo}, title = {{Dissecting Smoke Loader}}, date = {2018-07-18}, organization = {CERT.PL}, url = {https://www.cert.pl/en/news/single/dissecting-smoke-loader/}, language = {English}, urldate = {2020-01-13} } Dissecting Smoke Loader
SmokeLoader
2018-07-03Talos IntelligenceBen Baker, Holger Unterbrink
@online{baker:20180703:smoking:067be1f, author = {Ben Baker and Holger Unterbrink}, title = {{Smoking Guns - Smoke Loader learned new tricks}}, date = {2018-07-03}, organization = {Talos Intelligence}, url = {https://blog.talosintelligence.com/2018/07/smoking-guns-smoke-loader-learned-new.html}, language = {English}, urldate = {2019-10-14} } Smoking Guns - Smoke Loader learned new tricks
SmokeLoader TrickBot
2018-04-16SpamhausSpamhaus Malware Labs
@online{labs:20180416:smoke:b91b833, author = {Spamhaus Malware Labs}, title = {{Smoke Loader malware improves after Microsoft spoils its Campaign}}, date = {2018-04-16}, organization = {Spamhaus}, url = {https://www.spamhaus.org/news/article/774/smoke-loader-improves-encryption-after-microsoft-spoils-its-campaign}, language = {English}, urldate = {2020-01-08} } Smoke Loader malware improves after Microsoft spoils its Campaign
SmokeLoader
2018-04-04MicrosoftMicrosoft Defender ATP Research Team
@online{team:20180404:hunting:fe0f809, author = {Microsoft Defender ATP Research Team}, title = {{Hunting down Dofoil with Windows Defender ATP}}, date = {2018-04-04}, organization = {Microsoft}, url = {https://cloudblogs.microsoft.com/microsoftsecure/2018/04/04/hunting-down-dofoil-with-windows-defender-atp/}, language = {English}, urldate = {2020-01-08} } Hunting down Dofoil with Windows Defender ATP
SmokeLoader
2018-01-12MalwarebytesJérôme Segura
@online{segura:20180112:fake:c7bc448, author = {Jérôme Segura}, title = {{Fake Spectre and Meltdown patch pushes Smoke Loader malware}}, date = {2018-01-12}, organization = {Malwarebytes}, url = {https://blog.malwarebytes.com/cybercrime/2018/01/fake-spectre-and-meltdown-patch-pushes-smoke-loader/}, language = {English}, urldate = {2019-12-20} } Fake Spectre and Meltdown patch pushes Smoke Loader malware
SmokeLoader
2017-08-24Blaze's Security BlogBartBlaze
@online{bartblaze:20170824:crystal:16adb4a, author = {BartBlaze}, title = {{Crystal Finance Millennium used to spread malware}}, date = {2017-08-24}, organization = {Blaze's Security Blog}, url = {https://bartblaze.blogspot.com/2017/08/crystal-finance-millennium-used-to.html}, language = {English}, urldate = {2020-02-01} } Crystal Finance Millennium used to spread malware
Chthonic SmokeLoader
2017-08-04PhishLabsJason Davison
@online{davison:20170804:smoke:06d64d3, author = {Jason Davison}, title = {{Smoke Loader Adds Additional Obfuscation Methods to Mitigate Analysis}}, date = {2017-08-04}, organization = {PhishLabs}, url = {https://info.phishlabs.com/blog/smoke-loader-adds-additional-obfuscation-methods-to-mitigate-analysis}, language = {English}, urldate = {2020-01-08} } Smoke Loader Adds Additional Obfuscation Methods to Mitigate Analysis
SmokeLoader
2017-04-03Malware BreakdownMalware Breakdown
@online{breakdown:20170403:shadow:962f78d, author = {Malware Breakdown}, title = {{Shadow Server Domains Leading to RIG Exploit Kit Dropping Smoke Loader}}, date = {2017-04-03}, organization = {Malware Breakdown}, url = {https://malwarebreakdown.com/2017/04/03/shadow-server-domains-leads-to-rig-exploit-kit-dropping-smoke-loader-which-downloads-neutrino-bot-aka-kasidet/}, language = {English}, urldate = {2019-12-18} } Shadow Server Domains Leading to RIG Exploit Kit Dropping Smoke Loader
SmokeLoader
2016-10-17MalwarebytesJérôme Segura
@online{segura:20161017:newlooking:3e62740, author = {Jérôme Segura}, title = {{New-looking Sundown EK drops Smoke Loader, Kronos banker}}, date = {2016-10-17}, organization = {Malwarebytes}, url = {https://blog.malwarebytes.com/threat-analysis/2016/10/new-looking-sundown-ek-drops-smoke-loader-kronos-banker/}, language = {English}, urldate = {2019-12-20} } New-looking Sundown EK drops Smoke Loader, Kronos banker
Kronos SmokeLoader
2016-08-05MalwarebytesMalwarebytes Labs
@online{labs:20160805:smoke:afada56, author = {Malwarebytes Labs}, title = {{Smoke Loader – downloader with a smokescreen still alive}}, date = {2016-08-05}, organization = {Malwarebytes}, url = {https://blog.malwarebytes.com/threat-analysis/2016/08/smoke-loader-downloader-with-a-smokescreen-still-alive/}, language = {English}, urldate = {2019-12-20} } Smoke Loader – downloader with a smokescreen still alive
SmokeLoader
2014-10-05Eternal TodoJose Miguel Esparza
@online{esparza:20141005:dissecting:93f306b, author = {Jose Miguel Esparza}, title = {{Dissecting SmokeLoader (or Yulia's sweet ass proposition)}}, date = {2014-10-05}, organization = {Eternal Todo}, url = {https://eternal-todo.com/blog/smokeloader-analysis-yulia-photo}, language = {English}, urldate = {2020-01-13} } Dissecting SmokeLoader (or Yulia's sweet ass proposition)
SmokeLoader
Yara Rules
[TLP:WHITE] win_smokeloader_auto (20211008 | Detects win.smokeloader.)
rule win_smokeloader_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2021-10-07"
        version = "1"
        description = "Detects win.smokeloader."
        info = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.6.0"
        signator_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.smokeloader"
        malpedia_rule_date = "20211007"
        malpedia_hash = "e5b790e0f888f252d49063a1251ca60ec2832535"
        malpedia_version = "20211008"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    /* DISCLAIMER
     * The strings used in this rule have been automatically selected from the
     * disassembly of memory dumps and unpacked files, using YARA-Signator.
     * The code and documentation is published here:
     * https://github.com/fxb-cocacoding/yara-signator
     * As Malpedia is used as data source, please note that for a given
     * number of families, only single samples are documented.
     * This likely impacts the degree of generalization these rules will offer.
     * Take the described generation method also into consideration when you
     * apply the rules in your use cases and assign them confidence levels.
     */


    strings:
        $sequence_0 = { ff15???????? 8d45f0 50 8d45e8 50 8d45e0 }
            // n = 6, score = 1300
            //   ff15????????         |                     
            //   8d45f0               | lea                 eax, dword ptr [ebp - 0x10]
            //   50                   | push                eax
            //   8d45e8               | lea                 eax, dword ptr [ebp - 0x18]
            //   50                   | push                eax
            //   8d45e0               | lea                 eax, dword ptr [ebp - 0x20]

        $sequence_1 = { 8bf0 8d45dc 50 6a00 53 }
            // n = 5, score = 1100
            //   8bf0                 | mov                 esi, eax
            //   8d45dc               | lea                 eax, dword ptr [ebp - 0x24]
            //   50                   | push                eax
            //   6a00                 | push                0
            //   53                   | push                ebx

        $sequence_2 = { 57 ff15???????? 6a00 6800000002 }
            // n = 4, score = 1100
            //   57                   | push                edi
            //   ff15????????         |                     
            //   6a00                 | push                0
            //   6800000002           | push                0x2000000

        $sequence_3 = { 8d45e8 50 8d45e0 50 56 ff15???????? 56 }
            // n = 7, score = 1100
            //   8d45e8               | lea                 eax, dword ptr [ebp - 0x18]
            //   50                   | push                eax
            //   8d45e0               | lea                 eax, dword ptr [ebp - 0x20]
            //   50                   | push                eax
            //   56                   | push                esi
            //   ff15????????         |                     
            //   56                   | push                esi

        $sequence_4 = { 6a00 53 ff15???????? 8d45f0 }
            // n = 4, score = 1100
            //   6a00                 | push                0
            //   53                   | push                ebx
            //   ff15????????         |                     
            //   8d45f0               | lea                 eax, dword ptr [ebp - 0x10]

        $sequence_5 = { ff15???????? bf90010000 8bcf e8???????? }
            // n = 4, score = 900
            //   ff15????????         |                     
            //   bf90010000           | mov                 edi, 0x190
            //   8bcf                 | mov                 ecx, edi
            //   e8????????           |                     

        $sequence_6 = { 668ce8 6685c0 7406 fe05???????? }
            // n = 4, score = 900
            //   668ce8               | mov                 ax, gs
            //   6685c0               | test                ax, ax
            //   7406                 | je                  8
            //   fe05????????         |                     

        $sequence_7 = { e8???????? 8bf0 8d45fc 50 ff75fc 56 }
            // n = 6, score = 800
            //   e8????????           |                     
            //   8bf0                 | mov                 ax, gs
            //   8d45fc               | test                ax, ax
            //   50                   | je                  8
            //   ff75fc               | mov                 edi, 0x190
            //   56                   | mov                 ecx, edi

        $sequence_8 = { ff15???????? 50 56 6a00 ff15???????? }
            // n = 5, score = 800
            //   ff15????????         |                     
            //   50                   | push                eax
            //   56                   | push                esi
            //   6a00                 | push                0
            //   ff15????????         |                     

        $sequence_9 = { 8b07 03c3 50 ff15???????? }
            // n = 4, score = 800
            //   8b07                 | mov                 eax, dword ptr [edi]
            //   03c3                 | add                 eax, ebx
            //   50                   | push                eax
            //   ff15????????         |                     

        $sequence_10 = { ff15???????? 6800a00f00 50 a3???????? }
            // n = 4, score = 800
            //   ff15????????         |                     
            //   6800a00f00           | test                ax, ax
            //   50                   | je                  0xe
            //   a3????????           |                     

        $sequence_11 = { 7507 33c0 e9???????? e8???????? b904010000 }
            // n = 5, score = 800
            //   7507                 | jne                 9
            //   33c0                 | xor                 eax, eax
            //   e9????????           |                     
            //   e8????????           |                     
            //   b904010000           | mov                 ecx, 0x104

        $sequence_12 = { ff15???????? 33ff 2bf0 47 }
            // n = 4, score = 800
            //   ff15????????         |                     
            //   33ff                 | and                 dword ptr [ebp - 4], 0
            //   2bf0                 | lea                 eax, dword ptr [ebp - 4]
            //   47                   | push                eax

        $sequence_13 = { 83c410 56 53 53 }
            // n = 4, score = 800
            //   83c410               | mov                 ax, gs
            //   56                   | test                ax, ax
            //   53                   | je                  8
            //   53                   | mov                 ax, gs

        $sequence_14 = { ff15???????? ff35???????? 6aff ff15???????? }
            // n = 4, score = 800
            //   ff15????????         |                     
            //   ff35????????         |                     
            //   6aff                 | jb                  0xfffffff2
            //   ff15????????         |                     

        $sequence_15 = { 72f0 eb19 8365fc00 8d45fc 50 ff7508 ff15???????? }
            // n = 7, score = 800
            //   72f0                 | jne                 9
            //   eb19                 | xor                 eax, eax
            //   8365fc00             | mov                 ecx, 0x104
            //   8d45fc               | cmp                 ecx, 0x20
            //   50                   | jb                  0xfffffff2
            //   ff7508               | jmp                 0x1d
            //   ff15????????         |                     

        $sequence_16 = { 8d8decfdffff 8d95f0fdffff c70200000000 6800800000 52 51 6aff }
            // n = 7, score = 500
            //   8d8decfdffff         | xor                 eax, eax
            //   8d95f0fdffff         | xor                 edx, edx
            //   c70200000000         | dec                 eax
            //   6800800000           | mov                 dword ptr [esp + 0x20], eax
            //   52                   | mov                 ecx, 0x21
            //   51                   | xor                 ecx, ecx
            //   6aff                 | jmp                 8

        $sequence_17 = { 66894603 8d8de8fdffff 50 50 50 }
            // n = 5, score = 500
            //   66894603             | jmp                 0x68
            //   8d8de8fdffff         | dec                 eax
            //   50                   | mov                 ecx, edi
            //   50                   | mov                 edi, dword ptr [ebp + 0x10]
            //   50                   | push                eax

        $sequence_18 = { 89c6 6804010000 56 57 }
            // n = 4, score = 500
            //   89c6                 | push                0
            //   6804010000           | push                0
            //   56                   | mov                 byte ptr [esi], 0x53
            //   57                   | push                esi

        $sequence_19 = { 01d4 8d85f0fdffff 8b750c 8b7d10 50 }
            // n = 5, score = 500
            //   01d4                 | push                eax
            //   8d85f0fdffff         | push                edi
            //   8b750c               | push                esi
            //   8b7d10               | push                ebx
            //   50                   | lea                 edx, dword ptr [ebp - 0x210]

        $sequence_20 = { 8985ecfdffff ffb5f0fdffff 50 53 e8???????? 8d8decfdffff 8d95f0fdffff }
            // n = 7, score = 500
            //   8985ecfdffff         | push                edi
            //   ffb5f0fdffff         | push                esi
            //   50                   | push                ebx
            //   53                   | test                eax, eax
            //   e8????????           |                     
            //   8d8decfdffff         | lea                 ecx, dword ptr [ebp - 0x214]
            //   8d95f0fdffff         | lea                 edx, dword ptr [ebp - 0x210]

        $sequence_21 = { 8db5f8fdffff c60653 56 6a00 }
            // n = 4, score = 500
            //   8db5f8fdffff         | lea                 eax, dword ptr [ebp - 0x210]
            //   c60653               | mov                 esi, dword ptr [ebp + 0xc]
            //   56                   | mov                 edi, dword ptr [ebp + 0x10]
            //   6a00                 | push                eax

        $sequence_22 = { 8b7d10 50 57 56 53 e8???????? 85c0 }
            // n = 7, score = 500
            //   8b7d10               | arpl                word ptr [ebx + 0x3c], cx
            //   50                   | inc                 ebp
            //   57                   | xor                 ecx, ecx
            //   56                   | dec                 eax
            //   53                   | mov                 dword ptr [ecx + ebx + 0x30], ebx
            //   e8????????           |                     
            //   85c0                 | inc                 ebp

        $sequence_23 = { fc 5f 5e 5b }
            // n = 4, score = 400
            //   fc                   | push                esi
            //   5f                   | push                esi
            //   5e                   | push                eax
            //   5b                   | lea                 eax, dword ptr [ebp - 0x20]

        $sequence_24 = { 89c6 89cf fc b280 }
            // n = 4, score = 400
            //   89c6                 | inc                 edi
            //   89cf                 | mov                 esi, eax
            //   fc                   | lea                 eax, dword ptr [ebp - 4]
            //   b280                 | push                eax

        $sequence_25 = { 30d0 aa e2f3 7505 }
            // n = 4, score = 400
            //   30d0                 | xor                 al, dl
            //   aa                   | stosb               byte ptr es:[edi], al
            //   e2f3                 | loop                0xfffffff5
            //   7505                 | jne                 7

        $sequence_26 = { 55 89e5 81ec5c060000 53 }
            // n = 4, score = 400
            //   55                   | push                ebp
            //   89e5                 | mov                 ebp, esp
            //   81ec5c060000         | sub                 esp, 0x65c
            //   53                   | push                ebx

        $sequence_27 = { ffc9 49 8d3c8c 8b37 4c }
            // n = 5, score = 300
            //   ffc9                 | dec                 ecx
            //   49                   | dec                 ecx
            //   8d3c8c               | lea                 edi, dword ptr [esp + ecx*4]
            //   8b37                 | mov                 esi, dword ptr [edi]
            //   4c                   | dec                 esp

        $sequence_28 = { 4533c0 33d2 4889442420 ff15???????? b921000000 }
            // n = 5, score = 300
            //   4533c0               | mov                 ecx, dword ptr [ebp - 0x80]
            //   33d2                 | dec                 eax
            //   4889442420           | mov                 eax, dword ptr [ecx]
            //   ff15????????         |                     
            //   b921000000           | dec                 eax

        $sequence_29 = { 488bd6 488bc8 488bd8 ff15???????? 48634b3c 4533c9 48895c1930 }
            // n = 7, score = 300
            //   488bd6               | cmp                 ebx, 0x10
            //   488bc8               | jl                  0xffffffdf
            //   488bd8               | dec                 eax
            //   ff15????????         |                     
            //   48634b3c             | mov                 edx, edi
            //   4533c9               | call                dword ptr [eax + 0x88]
            //   48895c1930           | dec                 eax

        $sequence_30 = { ac 01c2 85c0 75f0 }
            // n = 4, score = 300
            //   ac                   | lodsb               al, byte ptr [esi]
            //   01c2                 | add                 edx, eax
            //   85c0                 | test                eax, eax
            //   75f0                 | jne                 0xfffffff2

        $sequence_31 = { 8b45d7 4103c5 44896b17 4881c3cd020000 89834ffdffff 448b875e030000 488d5701 }
            // n = 7, score = 300
            //   8b45d7               | mov                 eax, dword ptr [ebp - 0x29]
            //   4103c5               | inc                 ecx
            //   44896b17             | add                 eax, ebp
            //   4881c3cd020000       | inc                 esp
            //   89834ffdffff         | mov                 dword ptr [ebx + 0x17], ebp
            //   448b875e030000       | dec                 eax
            //   488d5701             | add                 ebx, 0x2cd

        $sequence_32 = { 8d1c10 41 8b4b18 45 8b6320 4d 01c4 }
            // n = 7, score = 300
            //   8d1c10               | lea                 ebx, dword ptr [eax + edx]
            //   41                   | inc                 ecx
            //   8b4b18               | mov                 ecx, dword ptr [ebx + 0x18]
            //   45                   | inc                 ebp
            //   8b6320               | mov                 esp, dword ptr [ebx + 0x20]
            //   4d                   | dec                 ebp
            //   01c4                 | add                 esp, eax

        $sequence_33 = { 01c2 31c0 ac 01c2 }
            // n = 4, score = 300
            //   01c2                 | add                 edx, eax
            //   31c0                 | xor                 eax, eax
            //   ac                   | lodsb               al, byte ptr [esi]
            //   01c2                 | add                 edx, eax

        $sequence_34 = { 488bd7 ff9088000000 488b4d80 488b01 }
            // n = 4, score = 300
            //   488bd7               | lea                 edx, dword ptr [edi + 1]
            //   ff9088000000         | dec                 eax
            //   488b4d80             | add                 edi, ecx
            //   488b01               | mov                 dword ptr [ebp + 0x30], ebx

        $sequence_35 = { 41 8b7b1c 4c 01c7 8b048f 4c }
            // n = 6, score = 300
            //   41                   | inc                 ecx
            //   8b7b1c               | mov                 edi, dword ptr [ebx + 0x1c]
            //   4c                   | dec                 esp
            //   01c7                 | add                 edi, eax
            //   8b048f               | mov                 eax, dword ptr [edi + ecx*4]
            //   4c                   | dec                 esp

        $sequence_36 = { 89d0 c1e205 01c2 31c0 }
            // n = 4, score = 300
            //   89d0                 | add                 esi, eax
            //   c1e205               | mov                 edi, dword ptr [ebx + 0x24]
            //   01c2                 | dec                 esp
            //   31c0                 | add                 edi, eax

        $sequence_37 = { 01c7 668b0c4f 41 8b7b1c }
            // n = 4, score = 300
            //   01c7                 | add                 edi, eax
            //   668b0c4f             | mov                 cx, word ptr [edi + ecx*2]
            //   41                   | inc                 ecx
            //   8b7b1c               | mov                 edi, dword ptr [ebx + 0x1c]

        $sequence_38 = { 4803f9 895d30 83fb10 7cd7 }
            // n = 4, score = 300
            //   4803f9               | mov                 dword ptr [ebx - 0x2b1], eax
            //   895d30               | inc                 esp
            //   83fb10               | mov                 eax, dword ptr [edi + 0x35e]
            //   7cd7                 | dec                 eax

        $sequence_39 = { 01ee 56 ad 01e8 31c9 }
            // n = 5, score = 200
            //   01ee                 | cld                 
            //   56                   | mov                 dl, 0x80
            //   ad                   | mov                 esi, eax
            //   01e8                 | mov                 edi, ecx
            //   31c9                 | cld                 

        $sequence_40 = { 83c001 894590 8b4dfc 0fb75102 395590 7d37 }
            // n = 6, score = 200
            //   83c001               | mov                 edx, dword ptr [ebp - 0x7c]
            //   894590               | mov                 eax, dword ptr [ebp - 0x4c]
            //   8b4dfc               | mov                 eax, dword ptr [ebp - 0x1c]
            //   0fb75102             | push                eax
            //   395590               | mov                 dword ptr [ebp - 0x4c], eax
            //   7d37                 | mov                 ecx, dword ptr [ebp - 0x60]

        $sequence_41 = { 8b45e4 50 e8???????? 8945b4 8b4da0 8b55b4 89514c }
            // n = 7, score = 200
            //   8b45e4               | push                eax
            //   50                   | push                esi
            //   e8????????           |                     
            //   8945b4               | push                eax
            //   8b4da0               | push                esi
            //   8b55b4               | push                0
            //   89514c               | push                eax

        $sequence_42 = { 803800 75f5 31d1 75ec }
            // n = 4, score = 200
            //   803800               | add                 esi, ebp
            //   75f5                 | push                esi
            //   31d1                 | lodsd               eax, dword ptr [esi]
            //   75ec                 | add                 eax, ebp

        $sequence_43 = { c1e002 03471c 8b0428 01e8 }
            // n = 4, score = 200
            //   c1e002               | mov                 dl, 0x80
            //   03471c               | xor                 ebx, ebx
            //   8b0428               | movsb               byte ptr es:[edi], byte ptr [esi]
            //   01e8                 | pushal              

        $sequence_44 = { 39458c 7d53 8b4d8c 6bc928 8b55ec 8b45d8 03440a0c }
            // n = 7, score = 200
            //   39458c               | mov                 ax, gs
            //   7d53                 | test                ax, ax
            //   8b4d8c               | je                  0xb
            //   6bc928               | mov                 ax, gs
            //   8b55ec               | test                ax, ax
            //   8b45d8               | je                  0xb
            //   03440a0c             | push                eax

        $sequence_45 = { ad 85c0 75f3 c3 56 }
            // n = 5, score = 200
            //   ad                   | mov                 dl, 0x80
            //   85c0                 | xor                 ebx, ebx
            //   75f3                 | movsb               byte ptr es:[edi], byte ptr [esi]
            //   c3                   | mov                 edi, ecx
            //   56                   | cld                 

        $sequence_46 = { 8b4590 6bc028 8b4dec 8b540110 52 8b4590 6bc028 }
            // n = 7, score = 200
            //   8b4590               | mov                 edx, dword ptr [ebp - 0x4c]
            //   6bc028               | mov                 dword ptr [ecx + 0x4c], edx
            //   8b4dec               | push                ebp
            //   8b540110             | mov                 ebp, esp
            //   52                   | mov                 ecx, dword ptr [ebp + 0xc]
            //   8b4590               | imul                ecx, dword ptr [ebp + 0xc]
            //   6bc028               | imul                ecx, ecx, 0x63

        $sequence_47 = { 55 8bec 8b4d0c 0faf4d0c 6bc963 8b4508 33d2 }
            // n = 7, score = 200
            //   55                   | push                edi
            //   8bec                 | inc                 ebx
            //   8b4d0c               | cmp                 ebx, 0xf
            //   0faf4d0c             | cmp                 dword ptr [ebp - 0x74], eax
            //   6bc963               | jge                 0x58
            //   8b4508               | mov                 ecx, dword ptr [ebp - 0x74]
            //   33d2                 | imul                ecx, ecx, 0x28

        $sequence_48 = { 8d45e8 50 ff55bc 894588 }
            // n = 4, score = 200
            //   8d45e8               | mov                 eax, dword ptr [ebp + 8]
            //   50                   | xor                 edx, edx
            //   ff55bc               | mov                 edx, dword ptr [ebp - 0x40]
            //   894588               | mov                 dword ptr [ecx + 0x14], edx

        $sequence_49 = { 8b55c0 895114 68ddf553cd 8b45e4 50 }
            // n = 5, score = 200
            //   8b55c0               | mov                 edx, dword ptr [ebp - 0x14]
            //   895114               | mov                 eax, dword ptr [ebp - 0x28]
            //   68ddf553cd           | add                 eax, dword ptr [edx + ecx + 0xc]
            //   8b45e4               | mov                 ecx, dword ptr [ebp - 0x48]
            //   50                   | mov                 dword ptr [eax + 0x1c], ecx

        $sequence_50 = { 57 007508 bbb84340c1 4a }
            // n = 4, score = 200
            //   57                   | xor                 ecx, ecx
            //   007508               | lodsd               eax, dword ptr [esi]
            //   bbb84340c1           | test                eax, eax
            //   4a                   | jne                 0xfffffff7

        $sequence_51 = { 8bec 83c4d0 1e 53 56 57 }
            // n = 6, score = 200
            //   8bec                 | mov                 esi, eax
            //   83c4d0               | mov                 edi, ecx
            //   1e                   | cld                 
            //   53                   | mov                 dl, 0x80
            //   56                   | xor                 ebx, ebx
            //   57                   | movsb               byte ptr es:[edi], byte ptr [esi]

        $sequence_52 = { 8b4db8 89481c 8b5584 8b45b4 }
            // n = 4, score = 200
            //   8b4db8               | push                esi
            //   89481c               | push                0
            //   8b5584               | mov                 eax, dword ptr [edi]
            //   8b45b4               | add                 eax, ebx

        $sequence_53 = { 8b7c2878 01ef 8b7720 01ee }
            // n = 4, score = 200
            //   8b7c2878             | ret                 
            //   01ef                 | push                esi
            //   8b7720               | shl                 eax, 2
            //   01ee                 | add                 eax, dword ptr [edi + 0x1c]

    condition:
        7 of them and filesize < 245760
}
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