SYMBOLCOMMON_NAMEaka. SYNONYMS
win.agent_btz (Back to overview)

Agent.BTZ

aka: ComRAT, Minit, Sun rootkit

Actor(s): Turla Group


There is no description at this point.

References
2022-05-02cocomelonccocomelonc
@online{cocomelonc:20220502:malware:4384b01, author = {cocomelonc}, title = {{Malware development: persistence - part 3. COM DLL hijack. Simple C++ example}}, date = {2022-05-02}, organization = {cocomelonc}, url = {https://cocomelonc.github.io/tutorial/2022/05/02/malware-pers-3.html}, language = {English}, urldate = {2022-12-01} } Malware development: persistence - part 3. COM DLL hijack. Simple C++ example
Agent.BTZ Ave Maria Konni Mosquito TurlaRPC
2021-12-01ESET ResearchAlexis Dorais-Joncas, Facundo Muñoz
@techreport{doraisjoncas:20211201:jumping:00bc8f5, author = {Alexis Dorais-Joncas and Facundo Muñoz}, title = {{Jumping the air gap: 15 years of nation‑state effort}}, date = {2021-12-01}, institution = {ESET Research}, url = {https://www.welivesecurity.com/wp-content/uploads/2021/12/eset_jumping_the_air_gap_wp.pdf}, language = {English}, urldate = {2021-12-17} } Jumping the air gap: 15 years of nation‑state effort
Agent.BTZ Fanny Flame Gauss PlugX Ramsay Retro Stuxnet USBCulprit USBferry
2021-09-27Medium ryancorRyan Cornateanu
@online{cornateanu:20210927:deobfuscating:bfa117a, author = {Ryan Cornateanu}, title = {{Deobfuscating PowerShell Malware Droppers}}, date = {2021-09-27}, organization = {Medium ryancor}, url = {https://ryancor.medium.com/deobfuscating-powershell-malware-droppers-b6c34499e41d}, language = {English}, urldate = {2021-11-25} } Deobfuscating PowerShell Malware Droppers
Agent.BTZ
2021-02-28PWC UKPWC UK
@techreport{uk:20210228:cyber:bd780cd, author = {PWC UK}, title = {{Cyber Threats 2020: A Year in Retrospect}}, date = {2021-02-28}, institution = {PWC UK}, url = {https://www.pwc.co.uk/cyber-security/pdf/pwc-cyber-threats-2020-a-year-in-retrospect.pdf}, language = {English}, urldate = {2021-03-04} } Cyber Threats 2020: A Year in Retrospect
elf.wellmess FlowerPower PowGoop 8.t Dropper Agent.BTZ Agent Tesla Appleseed Ave Maria Bankshot BazarBackdoor BLINDINGCAN Chinoxy Conti Cotx RAT Crimson RAT DUSTMAN Emotet FriedEx FunnyDream Hakbit Mailto Maze METALJACK Nefilim Oblique RAT Pay2Key PlugX QakBot REvil Ryuk StoneDrill StrongPity SUNBURST SUPERNOVA TrickBot TurlaRPC Turla SilentMoon WastedLocker WellMess Winnti ZeroCleare APT10 APT23 APT27 APT31 APT41 BlackTech BRONZE EDGEWOOD Inception Framework MUSTANG PANDA Red Charon Red Nue Tonto Team
2021-02-19Palo Alto Networks Unit 42Dominik Reichel
@online{reichel:20210219:ironnetinjector:07c7f33, author = {Dominik Reichel}, title = {{IronNetInjector: Turla’s New Malware Loading Tool}}, date = {2021-02-19}, organization = {Palo Alto Networks Unit 42}, url = {https://unit42.paloaltonetworks.com/ironnetinjector/}, language = {English}, urldate = {2021-02-20} } IronNetInjector: Turla’s New Malware Loading Tool
Agent.BTZ IronNetInjector TurlaRPC
2021-02-16US Department of DefenseUS Department of Defense
@techreport{defense:20210216:creation:d20a363, author = {US Department of Defense}, title = {{The creation of the 2020 ComRATv4 illustration}}, date = {2021-02-16}, institution = {US Department of Defense}, url = {https://cdn.muckrock.com/foia_files/2021/02/16/21R019_RESPONSE.pdf}, language = {English}, urldate = {2021-03-25} } The creation of the 2020 ComRATv4 illustration
Agent.BTZ
2020-12-21IronNetAdam Hlavek, Kimberly Ortiz
@online{hlavek:20201221:russian:804662f, author = {Adam Hlavek and Kimberly Ortiz}, title = {{Russian cyber attack campaigns and actors}}, date = {2020-12-21}, organization = {IronNet}, url = {https://www.ironnet.com/blog/russian-cyber-attack-campaigns-and-actors}, language = {English}, urldate = {2021-01-05} } Russian cyber attack campaigns and actors
WellMail elf.wellmess Agent.BTZ BlackEnergy EternalPetya Havex RAT Industroyer Ryuk Triton WellMess
2020-10-29US-CERTUS-CERT
@online{uscert:20201029:malware:c4c177c, author = {US-CERT}, title = {{Malware Analysis Report (AR20-303A): PowerShell Script: ComRAT}}, date = {2020-10-29}, organization = {US-CERT}, url = {https://us-cert.cisa.gov/ncas/analysis-reports/ar20-303a}, language = {English}, urldate = {2020-11-02} } Malware Analysis Report (AR20-303A): PowerShell Script: ComRAT
Agent.BTZ
2020-09-01Möbius Strip Reverse EngineeringRolf Rolles
@online{rolles:20200901:exhaustivelyanalyzed:0a5410d, author = {Rolf Rolles}, title = {{An Exhaustively-Analyzed IDB for ComRAT v4}}, date = {2020-09-01}, organization = {Möbius Strip Reverse Engineering}, url = {https://www.msreverseengineering.com/blog/2020/8/31/an-exhaustively-analyzed-idb-for-comrat-v4}, language = {English}, urldate = {2020-09-01} } An Exhaustively-Analyzed IDB for ComRAT v4
Agent.BTZ
2020-07-29ESET Researchwelivesecurity
@techreport{welivesecurity:20200729:threat:496355c, author = {welivesecurity}, title = {{THREAT REPORT Q2 2020}}, date = {2020-07-29}, institution = {ESET Research}, url = {https://www.welivesecurity.com/wp-content/uploads/2020/07/ESET_Threat_Report_Q22020.pdf}, language = {English}, urldate = {2020-07-30} } THREAT REPORT Q2 2020
DEFENSOR ID HiddenAd Bundlore Pirrit Agent.BTZ Cerber ClipBanker CROSSWALK Cryptowall CTB Locker DanaBot Dharma Formbook Gandcrab Grandoreiro Houdini ISFB LockBit Locky Mailto Maze Microcin Nemty NjRAT Phobos PlugX Pony REvil Socelars STOP Tinba TrickBot WannaCryptor
2020-05-26ESET ResearchMatthieu Faou
@techreport{faou:20200526:from:89e2854, author = {Matthieu Faou}, title = {{From Agent.BTZ to ComRAT v4: A ten‑year journey (White Paper)}}, date = {2020-05-26}, institution = {ESET Research}, url = {https://www.welivesecurity.com/wp-content/uploads/2020/05/ESET_Turla_ComRAT.pdf}, language = {English}, urldate = {2020-05-27} } From Agent.BTZ to ComRAT v4: A ten‑year journey (White Paper)
Agent.BTZ
2020-05-26ESET ResearchMatthieu Faou
@online{faou:20200526:from:804e2da, author = {Matthieu Faou}, title = {{From Agent.BTZ to ComRAT v4: A ten‑year journey}}, date = {2020-05-26}, organization = {ESET Research}, url = {https://www.welivesecurity.com/2020/05/26/agentbtz-comratv4-ten-year-journey/}, language = {English}, urldate = {2020-05-27} } From Agent.BTZ to ComRAT v4: A ten‑year journey
Agent.BTZ
2020-02-13QianxinQi Anxin Threat Intelligence Center
@techreport{center:20200213:report:146d333, author = {Qi Anxin Threat Intelligence Center}, title = {{APT Report 2019}}, date = {2020-02-13}, institution = {Qianxin}, url = {https://ti.qianxin.com/uploads/2020/02/13/cb78386a082f465f259b37dae5df4884.pdf}, language = {English}, urldate = {2020-02-27} } APT Report 2019
Chrysaor Exodus Dacls VPNFilter DNSRat Griffon KopiLuwak More_eggs SQLRat AppleJeus BONDUPDATER Agent.BTZ Anchor AndroMut AppleJeus BOOSTWRITE Brambul Carbanak Cobalt Strike Dacls DistTrack DNSpionage Dtrack ELECTRICFISH FlawedAmmyy FlawedGrace Get2 Grateful POS HOPLIGHT Imminent Monitor RAT jason Joanap KerrDown KEYMARBLE Lambert LightNeuron LoJax MiniDuke PolyglotDuke PowerRatankba Rising Sun SDBbot ServHelper Snatch Stuxnet TinyMet tRat TrickBot Volgmer X-Agent Zebrocy
2020SecureworksSecureWorks
@online{secureworks:2020:iron:de2007f, author = {SecureWorks}, title = {{IRON HUNTER}}, date = {2020}, organization = {Secureworks}, url = {https://www.secureworks.com/research/threat-profiles/iron-hunter}, language = {English}, urldate = {2020-05-23} } IRON HUNTER
Agent.BTZ Cobra Carbon System LightNeuron Mosquito Nautilus Neuron Skipper Uroburos Turla
2018-10-04Kaspersky LabsGReAT
@online{great:20181004:shedding:5f22310, author = {GReAT}, title = {{Shedding Skin – Turla’s Fresh Faces}}, date = {2018-10-04}, organization = {Kaspersky Labs}, url = {https://securelist.com/shedding-skin-turlas-fresh-faces/88069/}, language = {English}, urldate = {2023-01-10} } Shedding Skin – Turla’s Fresh Faces
KopiLuwak Agent.BTZ Cobra Carbon System Gazer Meterpreter Mosquito Skipper
2018-03CrySyS LabBoldizsar Bencsath
@techreport{bencsath:201803:territorial:04343bb, author = {Boldizsar Bencsath}, title = {{Territorial Dispute – NSA’s perspective on APT landscape}}, date = {2018-03}, institution = {CrySyS Lab}, url = {https://www.crysys.hu/publications/files/tedi/ukatemicrysys_territorialdispute.pdf}, language = {English}, urldate = {2020-05-07} } Territorial Dispute – NSA’s perspective on APT landscape
9002 RAT Agent.BTZ DuQu EYService Flame FlowerShop Stuxnet Uroburos
2017-09-13IntezerOmri Ben Bassat
@online{bassat:20170913:new:376f00f, author = {Omri Ben Bassat}, title = {{New Variants of Agent.BTZ/ComRAT Found: The Threat That Hit The Pentagon In 2008 Still Evolving; Part 2/2}}, date = {2017-09-13}, organization = {Intezer}, url = {http://www.intezer.com/new-variants-of-agent-btz-comrat-found-part-2/}, language = {English}, urldate = {2019-12-24} } New Variants of Agent.BTZ/ComRAT Found: The Threat That Hit The Pentagon In 2008 Still Evolving; Part 2/2
Agent.BTZ
2017-08-07IntezerOmri Ben Bassat
@online{bassat:20170807:new:d776333, author = {Omri Ben Bassat}, title = {{New Variants of Agent.BTZ/ComRAT Found: The Threat That Hit The Pentagon In 2008 Still Evolving; Part 1/2}}, date = {2017-08-07}, organization = {Intezer}, url = {http://www.intezer.com/new-variants-of-agent-btz-comrat-found/}, language = {English}, urldate = {2019-12-17} } New Variants of Agent.BTZ/ComRAT Found: The Threat That Hit The Pentagon In 2008 Still Evolving; Part 1/2
Agent.BTZ
2016-01-14SymantecSecurity Response
@online{response:20160114:waterbug:9dbc59e, author = {Security Response}, title = {{The Waterbug attack group}}, date = {2016-01-14}, organization = {Symantec}, url = {https://docs.broadcom.com/doc/waterbug-attack-group}, language = {English}, urldate = {2022-04-25} } The Waterbug attack group
Agent.BTZ Cobra Carbon System Wipbot
2016-01-14SymantecSecurity Response
@techreport{response:20160114:waterbug:51a4dbd, author = {Security Response}, title = {{The Waterbug attack group}}, date = {2016-01-14}, institution = {Symantec}, url = {https://www.symantec.com/content/en/us/enterprise/media/security_response/whitepapers/waterbug-attack-group.pdf}, language = {English}, urldate = {2020-01-09} } The Waterbug attack group
Agent.BTZ Wipbot
2015-01-15G DataG Data
@online{data:20150115:weiterentwicklung:a65efbe, author = {G Data}, title = {{Weiterentwicklung anspruchsvoller Spyware: von Agent.BTZ zu ComRAT}}, date = {2015-01-15}, organization = {G Data}, url = {https://blog.gdata.de/2015/01/23779-weiterentwicklung-anspruchsvoller-spyware-von-agent-btz-zu-comrat}, language = {English}, urldate = {2020-01-08} } Weiterentwicklung anspruchsvoller Spyware: von Agent.BTZ zu ComRAT
Agent.BTZ
2014-11-11G DataG Data
@online{data:20141111:uroburos:8dce097, author = {G Data}, title = {{The Uroburos case: new sophisticated RAT identified}}, date = {2014-11-11}, organization = {G Data}, url = {https://www.gdatasoftware.com/blog/2014/11/23937-the-uroburos-case-new-sophisticated-rat-identified}, language = {English}, urldate = {2020-01-08} } The Uroburos case: new sophisticated RAT identified
Agent.BTZ Uroburos
2014-03-17BAE SystemsBAE Systems Applied Intelligence
@techreport{intelligence:20140317:snake:6d2f730, author = {BAE Systems Applied Intelligence}, title = {{Snake Campaign & Espionage Toolkit}}, date = {2014-03-17}, institution = {BAE Systems}, url = {https://artemonsecurity.com/snake_whitepaper.pdf}, language = {English}, urldate = {2022-10-20} } Snake Campaign & Espionage Toolkit
Agent.BTZ Uroburos
2014-03-12Kaspersky LabsAlexander Gostev
@online{gostev:20140312:agentbtz:8f1988f, author = {Alexander Gostev}, title = {{Agent.btz: a Source of Inspiration?}}, date = {2014-03-12}, organization = {Kaspersky Labs}, url = {https://securelist.com/blog/virus-watch/58551/agent-btz-a-source-of-inspiration/}, language = {English}, urldate = {2019-12-20} } Agent.btz: a Source of Inspiration?
Agent.BTZ
2008-11-30ThreatExpertSergei Shevchenko
@online{shevchenko:20081130:agentbtz:8c68643, author = {Sergei Shevchenko}, title = {{Agent.btz - A Threat That Hit Pentagon}}, date = {2008-11-30}, organization = {ThreatExpert}, url = {http://blog.threatexpert.com/2008/11/agentbtz-threat-that-hit-pentagon.html}, language = {English}, urldate = {2020-01-08} } Agent.btz - A Threat That Hit Pentagon
Agent.BTZ
Yara Rules
[TLP:WHITE] win_agent_btz_auto (20230125 | Detects win.agent_btz.)
rule win_agent_btz_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        version = "1"
        description = "Detects win.agent_btz."
        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.agent_btz"
        malpedia_rule_date = "20230124"
        malpedia_hash = "2ee0eebba83dce3d019a90519f2f972c0fcf9686"
        malpedia_version = "20230125"
        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 = { 50 ffd3 85c0 75d8 5f 5e 5b }
            // n = 7, score = 2500
            //   50                   | push                eax
            //   ffd3                 | call                ebx
            //   85c0                 | test                eax, eax
            //   75d8                 | jne                 0xffffffda
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi
            //   5b                   | pop                 ebx

        $sequence_1 = { c74608ffffffff f644240801 7409 56 e8???????? 83c404 }
            // n = 6, score = 2500
            //   c74608ffffffff       | mov                 dword ptr [esi + 8], 0xffffffff
            //   f644240801           | test                byte ptr [esp + 8], 1
            //   7409                 | je                  0xb
            //   56                   | push                esi
            //   e8????????           |                     
            //   83c404               | add                 esp, 4

        $sequence_2 = { 51 ffd6 8d54240c 52 ffd7 }
            // n = 5, score = 2500
            //   51                   | push                ecx
            //   ffd6                 | call                esi
            //   8d54240c             | lea                 edx, [esp + 0xc]
            //   52                   | push                edx
            //   ffd7                 | call                edi

        $sequence_3 = { ff15???????? b804000f00 8b4df4 64890d00000000 5f 5e }
            // n = 6, score = 2400
            //   ff15????????         |                     
            //   b804000f00           | mov                 eax, 0xf0004
            //   8b4df4               | mov                 ecx, dword ptr [ebp - 0xc]
            //   64890d00000000       | mov                 dword ptr fs:[0], ecx
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi

        $sequence_4 = { c7460c00000000 895e08 895e04 c7461000000000 895e14 }
            // n = 5, score = 2400
            //   c7460c00000000       | mov                 dword ptr [esi + 0xc], 0
            //   895e08               | mov                 dword ptr [esi + 8], ebx
            //   895e04               | mov                 dword ptr [esi + 4], ebx
            //   c7461000000000       | mov                 dword ptr [esi + 0x10], 0
            //   895e14               | mov                 dword ptr [esi + 0x14], ebx

        $sequence_5 = { 56 6a00 68???????? 8935???????? }
            // n = 4, score = 2300
            //   56                   | push                esi
            //   6a00                 | push                0
            //   68????????           |                     
            //   8935????????         |                     

        $sequence_6 = { ff15???????? 894614 33c0 33db }
            // n = 4, score = 2300
            //   ff15????????         |                     
            //   894614               | mov                 dword ptr [esi + 0x14], eax
            //   33c0                 | xor                 eax, eax
            //   33db                 | xor                 ebx, ebx

        $sequence_7 = { 83f8ff 740e 50 ff15???????? c74608ffffffff f644240801 7409 }
            // n = 7, score = 2200
            //   83f8ff               | cmp                 eax, -1
            //   740e                 | je                  0x10
            //   50                   | push                eax
            //   ff15????????         |                     
            //   c74608ffffffff       | mov                 dword ptr [esi + 8], 0xffffffff
            //   f644240801           | test                byte ptr [esp + 8], 1
            //   7409                 | je                  0xb

        $sequence_8 = { c706???????? 85c0 7413 83f8ff 740e }
            // n = 5, score = 2200
            //   c706????????         |                     
            //   85c0                 | test                eax, eax
            //   7413                 | je                  0x15
            //   83f8ff               | cmp                 eax, -1
            //   740e                 | je                  0x10

        $sequence_9 = { 8d542408 52 c744240c30000000 c744241003000000 }
            // n = 4, score = 2200
            //   8d542408             | lea                 edx, [esp + 8]
            //   52                   | push                edx
            //   c744240c30000000     | mov                 dword ptr [esp + 0xc], 0x30
            //   c744241003000000     | mov                 dword ptr [esp + 0x10], 3

        $sequence_10 = { 6801010000 ff15???????? 85c0 7415 }
            // n = 4, score = 1900
            //   6801010000           | push                0x101
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   7415                 | je                  0x17

        $sequence_11 = { 6a0a 68???????? 6a01 6a00 68???????? }
            // n = 5, score = 1400
            //   6a0a                 | push                0xa
            //   68????????           |                     
            //   6a01                 | push                1
            //   6a00                 | push                0
            //   68????????           |                     

        $sequence_12 = { 51 6a00 6819000200 6a00 68???????? }
            // n = 5, score = 1400
            //   51                   | push                ecx
            //   6a00                 | push                0
            //   6819000200           | push                0x20019
            //   6a00                 | push                0
            //   68????????           |                     

        $sequence_13 = { 50 68???????? 6a01 68???????? e8???????? 83c410 }
            // n = 6, score = 1200
            //   50                   | push                eax
            //   68????????           |                     
            //   6a01                 | push                1
            //   68????????           |                     
            //   e8????????           |                     
            //   83c410               | add                 esp, 0x10

        $sequence_14 = { 6a08 53 8d8dbcfeffff 51 ff75f8 }
            // n = 5, score = 1100
            //   6a08                 | push                8
            //   53                   | push                ebx
            //   8d8dbcfeffff         | lea                 ecx, [ebp - 0x144]
            //   51                   | push                ecx
            //   ff75f8               | push                dword ptr [ebp - 8]

        $sequence_15 = { 8b45f0 0145f4 83c40c 3bc3 }
            // n = 4, score = 1100
            //   8b45f0               | mov                 eax, dword ptr [ebp - 0x10]
            //   0145f4               | add                 dword ptr [ebp - 0xc], eax
            //   83c40c               | add                 esp, 0xc
            //   3bc3                 | cmp                 eax, ebx

        $sequence_16 = { c684248900000072 c684248a00000065 c684248b00000061 c684248c00000074 c684248d00000065 c684248e00000050 }
            // n = 6, score = 1100
            //   c684248900000072     | mov                 byte ptr [esp + 0x89], 0x72
            //   c684248a00000065     | mov                 byte ptr [esp + 0x8a], 0x65
            //   c684248b00000061     | mov                 byte ptr [esp + 0x8b], 0x61
            //   c684248c00000074     | mov                 byte ptr [esp + 0x8c], 0x74
            //   c684248d00000065     | mov                 byte ptr [esp + 0x8d], 0x65
            //   c684248e00000050     | mov                 byte ptr [esp + 0x8e], 0x50

        $sequence_17 = { 6a01 6a04 6a01 68???????? }
            // n = 4, score = 1100
            //   6a01                 | push                1
            //   6a04                 | push                4
            //   6a01                 | push                1
            //   68????????           |                     

        $sequence_18 = { 53 53 8d4dd8 51 ff750c 8d4de4 51 }
            // n = 7, score = 1100
            //   53                   | push                ebx
            //   53                   | push                ebx
            //   8d4dd8               | lea                 ecx, [ebp - 0x28]
            //   51                   | push                ecx
            //   ff750c               | push                dword ptr [ebp + 0xc]
            //   8d4de4               | lea                 ecx, [ebp - 0x1c]
            //   51                   | push                ecx

        $sequence_19 = { c6458770 c6458861 c6458972 c6458a74 c6458b2f c6458c66 }
            // n = 6, score = 1100
            //   c6458770             | mov                 byte ptr [ebp - 0x79], 0x70
            //   c6458861             | mov                 byte ptr [ebp - 0x78], 0x61
            //   c6458972             | mov                 byte ptr [ebp - 0x77], 0x72
            //   c6458a74             | mov                 byte ptr [ebp - 0x76], 0x74
            //   c6458b2f             | mov                 byte ptr [ebp - 0x75], 0x2f
            //   c6458c66             | mov                 byte ptr [ebp - 0x74], 0x66

        $sequence_20 = { ebd2 c78424a000000068000000 c78424dc00000001000000 33c0 66898424e0000000 }
            // n = 5, score = 1100
            //   ebd2                 | jmp                 0xffffffd4
            //   c78424a000000068000000     | mov    dword ptr [esp + 0xa0], 0x68
            //   c78424dc00000001000000     | mov    dword ptr [esp + 0xdc], 1
            //   33c0                 | xor                 eax, eax
            //   66898424e0000000     | mov                 word ptr [esp + 0xe0], ax

        $sequence_21 = { 8d85d8fdffff 50 66894dee c745fc04010000 }
            // n = 4, score = 1100
            //   8d85d8fdffff         | lea                 eax, [ebp - 0x228]
            //   50                   | push                eax
            //   66894dee             | mov                 word ptr [ebp - 0x12], cx
            //   c745fc04010000       | mov                 dword ptr [ebp - 4], 0x104

        $sequence_22 = { c684249600000000 c684241001000047 c684241101000065 c684241201000074 c68424130100004c }
            // n = 5, score = 1100
            //   c684249600000000     | mov                 byte ptr [esp + 0x96], 0
            //   c684241001000047     | mov                 byte ptr [esp + 0x110], 0x47
            //   c684241101000065     | mov                 byte ptr [esp + 0x111], 0x65
            //   c684241201000074     | mov                 byte ptr [esp + 0x112], 0x74
            //   c68424130100004c     | mov                 byte ptr [esp + 0x113], 0x4c

        $sequence_23 = { c684241601000074 c684241701000045 c684241801000072 c684241901000072 c684241a0100006f c684241b01000072 }
            // n = 6, score = 1100
            //   c684241601000074     | mov                 byte ptr [esp + 0x116], 0x74
            //   c684241701000045     | mov                 byte ptr [esp + 0x117], 0x45
            //   c684241801000072     | mov                 byte ptr [esp + 0x118], 0x72
            //   c684241901000072     | mov                 byte ptr [esp + 0x119], 0x72
            //   c684241a0100006f     | mov                 byte ptr [esp + 0x11a], 0x6f
            //   c684241b01000072     | mov                 byte ptr [esp + 0x11b], 0x72

        $sequence_24 = { 53 ff7508 8d4f04 51 }
            // n = 4, score = 1100
            //   53                   | push                ebx
            //   ff7508               | push                dword ptr [ebp + 8]
            //   8d4f04               | lea                 ecx, [edi + 4]
            //   51                   | push                ecx

        $sequence_25 = { c68424130100004c c684241401000061 c684241501000073 c684241601000074 c684241701000045 c684241801000072 }
            // n = 6, score = 1100
            //   c68424130100004c     | mov                 byte ptr [esp + 0x113], 0x4c
            //   c684241401000061     | mov                 byte ptr [esp + 0x114], 0x61
            //   c684241501000073     | mov                 byte ptr [esp + 0x115], 0x73
            //   c684241601000074     | mov                 byte ptr [esp + 0x116], 0x74
            //   c684241701000045     | mov                 byte ptr [esp + 0x117], 0x45
            //   c684241801000072     | mov                 byte ptr [esp + 0x118], 0x72

        $sequence_26 = { c684249300000073 c684249400000073 c684249500000057 c684249600000000 c684241001000047 }
            // n = 5, score = 1100
            //   c684249300000073     | mov                 byte ptr [esp + 0x93], 0x73
            //   c684249400000073     | mov                 byte ptr [esp + 0x94], 0x73
            //   c684249500000057     | mov                 byte ptr [esp + 0x95], 0x57
            //   c684249600000000     | mov                 byte ptr [esp + 0x96], 0
            //   c684241001000047     | mov                 byte ptr [esp + 0x110], 0x47

        $sequence_27 = { 8bd8 8d4304 8bf1 8b4e24 57 50 8945f8 }
            // n = 7, score = 1100
            //   8bd8                 | mov                 ebx, eax
            //   8d4304               | lea                 eax, [ebx + 4]
            //   8bf1                 | mov                 esi, ecx
            //   8b4e24               | mov                 ecx, dword ptr [esi + 0x24]
            //   57                   | push                edi
            //   50                   | push                eax
            //   8945f8               | mov                 dword ptr [ebp - 8], eax

        $sequence_28 = { c684248f00000072 c68424900000006f c684249100000063 c684249200000065 c684249300000073 }
            // n = 5, score = 1100
            //   c684248f00000072     | mov                 byte ptr [esp + 0x8f], 0x72
            //   c68424900000006f     | mov                 byte ptr [esp + 0x90], 0x6f
            //   c684249100000063     | mov                 byte ptr [esp + 0x91], 0x63
            //   c684249200000065     | mov                 byte ptr [esp + 0x92], 0x65
            //   c684249300000073     | mov                 byte ptr [esp + 0x93], 0x73

        $sequence_29 = { 885dcb c68574ffffff43 c68575ffffff6f c68576ffffff6e }
            // n = 4, score = 1100
            //   885dcb               | mov                 byte ptr [ebp - 0x35], bl
            //   c68574ffffff43       | mov                 byte ptr [ebp - 0x8c], 0x43
            //   c68575ffffff6f       | mov                 byte ptr [ebp - 0x8b], 0x6f
            //   c68576ffffff6e       | mov                 byte ptr [ebp - 0x8a], 0x6e

        $sequence_30 = { 68???????? 6a01 e8???????? 50 e8???????? 83c41c }
            // n = 6, score = 1000
            //   68????????           |                     
            //   6a01                 | mov                 byte ptr [esp + 0x114], 0x61
            //   e8????????           |                     
            //   50                   | mov                 byte ptr [esp + 0x115], 0x73
            //   e8????????           |                     
            //   83c41c               | mov                 byte ptr [esp + 0x111], 0x65

        $sequence_31 = { 6a01 68???????? e8???????? 83c414 5f 5e 5b }
            // n = 7, score = 1000
            //   6a01                 | push                1
            //   68????????           |                     
            //   e8????????           |                     
            //   83c414               | add                 esp, 0x14
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi
            //   5b                   | pop                 ebx

        $sequence_32 = { 83c020 50 e8???????? 83c404 33c0 }
            // n = 5, score = 1000
            //   83c020               | push                0xa
            //   50                   | push                1
            //   e8????????           |                     
            //   83c404               | push                0
            //   33c0                 | push                ecx

        $sequence_33 = { 50 e8???????? 83c408 6800010000 e8???????? }
            // n = 5, score = 1000
            //   50                   | push                eax
            //   e8????????           |                     
            //   83c408               | add                 esp, 8
            //   6800010000           | push                0x100
            //   e8????????           |                     

        $sequence_34 = { 7511 e8???????? 83c020 50 }
            // n = 4, score = 1000
            //   7511                 | push                0
            //   e8????????           |                     
            //   83c020               | push                1
            //   50                   | push                4

        $sequence_35 = { 6a00 6a27 6a02 6a00 6a01 }
            // n = 5, score = 800
            //   6a00                 | push                0
            //   6a27                 | push                0x27
            //   6a02                 | push                2
            //   6a00                 | push                0
            //   6a01                 | push                1

        $sequence_36 = { 8d8505feffff 50 e8???????? 83c40c }
            // n = 4, score = 700
            //   8d8505feffff         | lea                 eax, [ebp - 0x1fb]
            //   50                   | push                eax
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc

        $sequence_37 = { c645d316 c645d43a c645d53b c645d63b c645d730 }
            // n = 5, score = 700
            //   c645d316             | add                 esp, 0x10
            //   c645d43a             | push                ecx
            //   c645d53b             | push                1
            //   c645d63b             | push                eax
            //   c645d730             | add                 esp, 0x14

        $sequence_38 = { 488b4338 33d2 488bce 448d4220 }
            // n = 4, score = 600
            //   488b4338             | dec                 eax
            //   33d2                 | mov                 eax, dword ptr [ebx + 0x38]
            //   488bce               | xor                 edx, edx
            //   448d4220             | dec                 eax

        $sequence_39 = { 57 4154 4155 4156 4883ec30 488b4138 }
            // n = 6, score = 500
            //   57                   | lea                 eax, [esp + 0x20]
            //   4154                 | mov                 edx, 0x104
            //   4155                 | inc                 ecx
            //   4156                 | add                 ecx, 2
            //   4883ec30             | dec                 eax
            //   488b4138             | mov                 ecx, edi

        $sequence_40 = { 498d5310 6689442420 b830000000 488d4c2430 6689442422 b838000000 }
            // n = 6, score = 500
            //   498d5310             | dec                 eax
            //   6689442420           | lea                 ecx, [esp + 0x30]
            //   b830000000           | push                edi
            //   488d4c2430           | dec                 eax
            //   6689442422           | sub                 esp, 0x240
            //   b838000000           | mov                 eax, 0x25

        $sequence_41 = { 4881ec40020000 b825000000 488bf9 498d5310 6689442420 b830000000 }
            // n = 6, score = 500
            //   4881ec40020000       | mov                 ecx, esi
            //   b825000000           | inc                 esp
            //   488bf9               | lea                 eax, [edx + 0x20]
            //   498d5310             | dec                 eax
            //   6689442420           | sub                 esp, 0x240
            //   b830000000           | mov                 eax, 0x25

        $sequence_42 = { 4c8d4c2450 448bc3 488bd7 4c89642420 }
            // n = 4, score = 500
            //   4c8d4c2450           | sub                 esp, 0x240
            //   448bc3               | mov                 eax, 0x25
            //   488bd7               | dec                 eax
            //   4c89642420           | mov                 edi, ecx

        $sequence_43 = { 4c8d442420 ba04010000 4183c102 488bcf }
            // n = 4, score = 500
            //   4c8d442420           | dec                 ecx
            //   ba04010000           | lea                 edx, [ebx + 0x10]
            //   4183c102             | mov                 word ptr [esp + 0x20], ax
            //   488bcf               | mov                 eax, 0x30

        $sequence_44 = { 488d542430 41b8ffff0000 4c895b28 4889742420 }
            // n = 4, score = 500
            //   488d542430           | dec                 eax
            //   41b8ffff0000         | lea                 ecx, [esp + 0x30]
            //   4c895b28             | mov                 word ptr [esp + 0x22], ax
            //   4889742420           | mov                 eax, 0x38

        $sequence_45 = { 488b0e 4c8d442450 4533c9 498bd4 }
            // n = 4, score = 500
            //   488b0e               | sub                 esp, 0x240
            //   4c8d442450           | mov                 eax, 0x25
            //   4533c9               | dec                 eax
            //   498bd4               | mov                 edi, ecx

        $sequence_46 = { 8d8594faffff 50 68???????? ff15???????? }
            // n = 4, score = 200
            //   8d8594faffff         | lea                 eax, [ebp - 0x56c]
            //   50                   | push                eax
            //   68????????           |                     
            //   ff15????????         |                     

        $sequence_47 = { 0304b5100b4200 59 5e eb05 }
            // n = 4, score = 100
            //   0304b5100b4200       | add                 eax, dword ptr [esi*4 + 0x420b10]
            //   59                   | pop                 ecx
            //   5e                   | pop                 esi
            //   eb05                 | jmp                 7

        $sequence_48 = { 0304b5100b4200 59 eb05 b8???????? }
            // n = 4, score = 100
            //   0304b5100b4200       | add                 eax, dword ptr [esi*4 + 0x420b10]
            //   59                   | pop                 ecx
            //   eb05                 | jmp                 7
            //   b8????????           |                     

        $sequence_49 = { 030c85100b4200 eb02 8bcb f6412480 }
            // n = 4, score = 100
            //   030c85100b4200       | add                 ecx, dword ptr [eax*4 + 0x420b10]
            //   eb02                 | jmp                 4
            //   8bcb                 | mov                 ecx, ebx
            //   f6412480             | test                byte ptr [ecx + 0x24], 0x80

        $sequence_50 = { 013d???????? 8b04b5100b4200 0500080000 3bc8 }
            // n = 4, score = 100
            //   013d????????         |                     
            //   8b04b5100b4200       | mov                 eax, dword ptr [esi*4 + 0x420b10]
            //   0500080000           | add                 eax, 0x800
            //   3bc8                 | cmp                 ecx, eax

        $sequence_51 = { 0304b5100b4200 beffff0000 59 59 }
            // n = 4, score = 100
            //   0304b5100b4200       | add                 eax, dword ptr [esi*4 + 0x420b10]
            //   beffff0000           | mov                 esi, 0xffff
            //   59                   | pop                 ecx
            //   59                   | pop                 ecx

        $sequence_52 = { 001cbe 40 0023 d18a0688078a 46 }
            // n = 5, score = 100
            //   001cbe               | add                 byte ptr [esi + edi*4], bl
            //   40                   | inc                 eax
            //   0023                 | add                 byte ptr [ebx], ah
            //   d18a0688078a         | ror                 dword ptr [edx - 0x75f877fa], 1
            //   46                   | inc                 esi

        $sequence_53 = { 0304b5100b4200 59 eb02 8bc3 }
            // n = 4, score = 100
            //   0304b5100b4200       | add                 eax, dword ptr [esi*4 + 0x420b10]
            //   59                   | pop                 ecx
            //   eb02                 | jmp                 4
            //   8bc3                 | mov                 eax, ebx

    condition:
        7 of them and filesize < 5577728
}
[TLP:WHITE] win_agent_btz_w0   (20171113 | No description)
rule win_agent_btz_w0 {
    meta:
        author = "Symantec"
        source = "https://www.symantec.com/content/en/us/enterprise/media/security_response/whitepapers/waterbug-attack-group.pdf"
        contribution = "pnx - removed FPs"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.agent_btz"
        malpedia_version = "20171113"
        malpedia_sharing = "TLP:WHITE"
        malpedia_license = ""
    strings:
        $b = {C645????}
        $c = {C685??FEFFFF??}
        $d = {FFA0??0?0000}
        $e = {89A8??00000068??00000056FFD78B}
        $f = {00004889????030000488B}
        $tmp_fn = "FA.tmp"
    condition:
        ((#c > 200 and #b > 200 ) or (#d > 40) and (#e > 15 or #f > 30)) and $tmp_fn
}
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