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
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
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 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
@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
2020-05-26ESET 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
2020-02-13QianxinQi 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 Group
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
@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 Turla Group
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 Turla Group
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
2014-03-12Kaspersky 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 (20220411 | Detects win.agent_btz.)
rule win_agent_btz_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-04-08"
        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 = "20220405"
        malpedia_hash = "ecd38294bd47d5589be5cd5490dc8bb4804afc2a"
        malpedia_version = "20220411"
        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 = { ffd3 85c0 75d8 5f 5e }
            // n = 5, score = 2500
            //   ffd3                 | call                ebx
            //   85c0                 | test                eax, eax
            //   75d8                 | jne                 0xffffffda
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi

        $sequence_1 = { c74608ffffffff f644240801 7409 56 e8???????? 83c404 8bc6 }
            // n = 7, 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
            //   8bc6                 | mov                 eax, esi

        $sequence_2 = { 8d4c240c 51 ffd6 8d54240c 52 ffd7 }
            // n = 6, score = 2500
            //   8d4c240c             | lea                 ecx, dword ptr [esp + 0xc]
            //   51                   | push                ecx
            //   ffd6                 | call                esi
            //   8d54240c             | lea                 edx, dword ptr [esp + 0xc]
            //   52                   | push                edx
            //   ffd7                 | call                edi

        $sequence_3 = { c706???????? c7460c00000000 895e08 895e04 c7461000000000 895e14 }
            // n = 6, score = 2400
            //   c706????????         |                     
            //   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_4 = { ff15???????? b803000f00 8b4df4 64890d00000000 5f 5e 5b }
            // n = 7, score = 2400
            //   ff15????????         |                     
            //   b803000f00           | mov                 eax, 0xf0003
            //   8b4df4               | mov                 ecx, dword ptr [ebp - 0xc]
            //   64890d00000000       | mov                 dword ptr fs:[0], ecx
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi
            //   5b                   | pop                 ebx

        $sequence_5 = { 6a00 50 ff15???????? 894614 }
            // n = 4, score = 2300
            //   6a00                 | push                0
            //   50                   | push                eax
            //   ff15????????         |                     
            //   894614               | mov                 dword ptr [esi + 0x14], eax

        $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 = { 56 6a00 68???????? 8935???????? e8???????? }
            // n = 5, score = 2300
            //   56                   | push                esi
            //   6a00                 | push                0
            //   68????????           |                     
            //   8935????????         |                     
            //   e8????????           |                     

        $sequence_8 = { 50 ff15???????? c74608ffffffff f644240801 }
            // n = 4, score = 2200
            //   50                   | push                eax
            //   ff15????????         |                     
            //   c74608ffffffff       | mov                 dword ptr [esi + 8], 0xffffffff
            //   f644240801           | test                byte ptr [esp + 8], 1

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

        $sequence_10 = { 56 8bf1 8b4608 c706???????? 85c0 7413 }
            // n = 6, score = 2200
            //   56                   | push                esi
            //   8bf1                 | mov                 esi, ecx
            //   8b4608               | mov                 eax, dword ptr [esi + 8]
            //   c706????????         |                     
            //   85c0                 | test                eax, eax
            //   7413                 | je                  0x15

        $sequence_11 = { c706???????? 85c0 7413 83f8ff 740e 50 ff15???????? }
            // n = 7, score = 2200
            //   c706????????         |                     
            //   85c0                 | test                eax, eax
            //   7413                 | je                  0x15
            //   83f8ff               | cmp                 eax, -1
            //   740e                 | je                  0x10
            //   50                   | push                eax
            //   ff15????????         |                     

        $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 = { 6a0a 68???????? 6a01 6a00 }
            // n = 4, score = 1400
            //   6a0a                 | push                0xa
            //   68????????           |                     
            //   6a01                 | push                1
            //   6a00                 | push                0

        $sequence_14 = { 50 68???????? 6a01 68???????? e8???????? 83c410 }
            // n = 6, score = 1200
            //   50                   | push                eax
            //   68????????           |                     
            //   6a01                 | push                1
            //   68????????           |                     
            //   e8????????           |                     
            //   83c410               | add                 esp, 0x10

        $sequence_15 = { 6a01 6a04 6a01 68???????? }
            // n = 4, score = 1100
            //   6a01                 | push                1
            //   6a04                 | push                4
            //   6a01                 | push                1
            //   68????????           |                     

        $sequence_16 = { 89461c 3dea000000 740b 3de5030000 }
            // n = 4, score = 1000
            //   89461c               | mov                 dword ptr [esi + 0x1c], eax
            //   3dea000000           | cmp                 eax, 0xea
            //   740b                 | je                  0xd
            //   3de5030000           | cmp                 eax, 0x3e5

        $sequence_17 = { 0fb605???????? 66890d???????? 0fb60d???????? 660fafca }
            // n = 4, score = 1000
            //   0fb605????????       |                     
            //   66890d????????       |                     
            //   0fb60d????????       |                     
            //   660fafca             | imul                cx, dx

        $sequence_18 = { 50 e8???????? 83c408 6800010000 e8???????? }
            // n = 5, score = 1000
            //   50                   | push                eax
            //   e8????????           |                     
            //   83c408               | add                 esp, 8
            //   6800010000           | push                0x100
            //   e8????????           |                     

        $sequence_19 = { 6a01 e8???????? 50 e8???????? 83c41c }
            // n = 5, score = 1000
            //   6a01                 | pop                 esi
            //   e8????????           |                     
            //   50                   | mov                 eax, 0xf0005
            //   e8????????           |                     
            //   83c41c               | mov                 ecx, dword ptr [ebp - 0xc]

        $sequence_20 = { 6a01 68???????? e8???????? 83c414 5f 5e }
            // n = 6, score = 1000
            //   6a01                 | push                1
            //   68????????           |                     
            //   e8????????           |                     
            //   83c414               | add                 esp, 0x14
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi

        $sequence_21 = { 7511 e8???????? 83c020 50 e8???????? }
            // n = 5, score = 1000
            //   7511                 | push                0
            //   e8????????           |                     
            //   83c020               | push                0xa
            //   50                   | push                1
            //   e8????????           |                     

        $sequence_22 = { c684241101000065 c684241201000074 c68424130100004c c684241401000061 c684241501000073 c684241601000074 c684241701000045 }
            // n = 7, score = 900
            //   c684241101000065     | mov                 byte ptr [esp + 0x111], 0x65
            //   c684241201000074     | mov                 byte ptr [esp + 0x112], 0x74
            //   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

        $sequence_23 = { c684241501000073 c684241601000074 c684241701000045 c684241801000072 c684241901000072 c684241a0100006f }
            // n = 6, score = 900
            //   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
            //   c684241901000072     | mov                 byte ptr [esp + 0x119], 0x72
            //   c684241a0100006f     | mov                 byte ptr [esp + 0x11a], 0x6f

        $sequence_24 = { 53 56 57 ff7508 8bf1 33db 895e10 }
            // n = 7, score = 900
            //   53                   | push                ebx
            //   56                   | push                esi
            //   57                   | push                edi
            //   ff7508               | push                dword ptr [ebp + 8]
            //   8bf1                 | mov                 esi, ecx
            //   33db                 | xor                 ebx, ebx
            //   895e10               | mov                 dword ptr [esi + 0x10], ebx

        $sequence_25 = { c684249400000073 c684249500000057 c684249600000000 c684241001000047 c684241101000065 }
            // n = 5, score = 900
            //   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
            //   c684241101000065     | mov                 byte ptr [esp + 0x111], 0x65

        $sequence_26 = { 6a14 8d4608 6a00 50 }
            // n = 4, score = 900
            //   6a14                 | push                0x14
            //   8d4608               | lea                 eax, dword ptr [esi + 8]
            //   6a00                 | push                0
            //   50                   | push                eax

        $sequence_27 = { c68424900000006f c684249100000063 c684249200000065 c684249300000073 c684249400000073 }
            // n = 5, score = 900
            //   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
            //   c684249400000073     | mov                 byte ptr [esp + 0x94], 0x73

        $sequence_28 = { 8d4f04 c70702000000 8b4624 51 }
            // n = 4, score = 900
            //   8d4f04               | lea                 ecx, dword ptr [edi + 4]
            //   c70702000000         | mov                 dword ptr [edi], 2
            //   8b4624               | mov                 eax, dword ptr [esi + 0x24]
            //   51                   | push                ecx

        $sequence_29 = { 6a65 668945f0 66894dec 59 6a25 58 6a30 }
            // n = 7, score = 900
            //   6a65                 | push                0x65
            //   668945f0             | mov                 word ptr [ebp - 0x10], ax
            //   66894dec             | mov                 word ptr [ebp - 0x14], cx
            //   59                   | pop                 ecx
            //   6a25                 | push                0x25
            //   58                   | pop                 eax
            //   6a30                 | push                0x30

        $sequence_30 = { c684248b00000061 c684248c00000074 c684248d00000065 c684248e00000050 c684248f00000072 }
            // n = 5, score = 900
            //   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
            //   c684248f00000072     | mov                 byte ptr [esp + 0x8f], 0x72

        $sequence_31 = { 6a69 66894de8 59 6a70 }
            // n = 4, score = 900
            //   6a69                 | push                0x69
            //   66894de8             | mov                 word ptr [ebp - 0x18], cx
            //   59                   | pop                 ecx
            //   6a70                 | push                0x70

        $sequence_32 = { c645993b c6459a20 c6459b62 c6459c6f c6459d75 c6459e6e }
            // n = 6, score = 900
            //   c645993b             | mov                 byte ptr [ebp - 0x67], 0x3b
            //   c6459a20             | mov                 byte ptr [ebp - 0x66], 0x20
            //   c6459b62             | mov                 byte ptr [ebp - 0x65], 0x62
            //   c6459c6f             | mov                 byte ptr [ebp - 0x64], 0x6f
            //   c6459d75             | mov                 byte ptr [ebp - 0x63], 0x75
            //   c6459e6e             | mov                 byte ptr [ebp - 0x62], 0x6e

        $sequence_33 = { ebd2 c78424a000000068000000 c78424dc00000001000000 33c0 66898424e0000000 }
            // n = 5, score = 900
            //   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_34 = { 6a14 8938 8b4624 8d5e08 57 53 897dfc }
            // n = 7, score = 900
            //   6a14                 | push                0x14
            //   8938                 | mov                 dword ptr [eax], edi
            //   8b4624               | mov                 eax, dword ptr [esi + 0x24]
            //   8d5e08               | lea                 ebx, dword ptr [esi + 8]
            //   57                   | push                edi
            //   53                   | push                ebx
            //   897dfc               | mov                 dword ptr [ebp - 4], edi

        $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, dword ptr [ebp - 0x1fb]
            //   50                   | push                eax
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc

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

        $sequence_38 = { c645cb30 c645cc27 c645cd3b c645ce30 }
            // n = 4, score = 700
            //   c645cb30             | add                 esp, 0x14
            //   c645cc27             | push                eax
            //   c645cd3b             | push                1
            //   c645ce30             | push                eax

        $sequence_39 = { 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_40 = { 488b0f 894130 eb06 488b07 896830 }
            // n = 5, score = 500
            //   488b0f               | add                 esp, 0x10
            //   894130               | mov                 ecx, eax
            //   eb06                 | mov                 dword ptr [ebp - 4], 0xffffffff
            //   488b07               | dec                 eax
            //   896830               | mov                 eax, dword ptr [ebx + 0x38]

        $sequence_41 = { 488b4608 488b0e 48894628 488b4638 }
            // n = 4, score = 500
            //   488b4608             | dec                 eax
            //   488b0e               | mov                 ecx, dword ptr [esi]
            //   48894628             | dec                 eax
            //   488b4638             | mov                 dword ptr [esi + 0x28], eax

        $sequence_42 = { 488b0f 488b4108 48894128 488b0f 48396928 }
            // n = 5, score = 500
            //   488b0f               | dec                 eax
            //   488b4108             | mov                 dword ptr [esi + 0x28], eax
            //   48894128             | dec                 eax
            //   488b0f               | mov                 eax, dword ptr [esi + 0x38]
            //   48396928             | dec                 esp

        $sequence_43 = { 4533c9 488bd6 ff90c8010000 8bf8 85c0 }
            // n = 5, score = 500
            //   4533c9               | mov                 dword ptr [esi + 0x28], eax
            //   488bd6               | dec                 eax
            //   ff90c8010000         | mov                 eax, dword ptr [esi + 0x38]
            //   8bf8                 | dec                 esp
            //   85c0                 | lea                 ecx, dword ptr [esp + 0x50]

        $sequence_44 = { 488b5738 488bce 8bd8 ff92e8010000 488b6c2458 }
            // n = 5, score = 500
            //   488b5738             | inc                 esp
            //   488bce               | mov                 eax, ebx
            //   8bd8                 | dec                 eax
            //   ff92e8010000         | mov                 edx, edi
            //   488b6c2458           | dec                 eax

        $sequence_45 = { 488b4638 488b0e 4c8d442450 4533c9 }
            // n = 4, score = 500
            //   488b4638             | dec                 eax
            //   488b0e               | mov                 eax, dword ptr [esi + 8]
            //   4c8d442450           | dec                 eax
            //   4533c9               | mov                 ecx, dword ptr [esi]

        $sequence_46 = { 488bcf c744242088130000 e8???????? 488b5738 }
            // n = 4, score = 500
            //   488bcf               | mov                 eax, ebx
            //   c744242088130000     | dec                 eax
            //   e8????????           |                     
            //   488b5738             | mov                 edx, edi

        $sequence_47 = { 83c904 c1e803 448bc9 440fafc8 }
            // n = 4, score = 500
            //   83c904               | dec                 eax
            //   c1e803               | mov                 eax, dword ptr [esi + 0x38]
            //   448bc9               | dec                 eax
            //   440fafc8             | mov                 ecx, dword ptr [esi]

        $sequence_48 = { 488b0f 488901 488b07 488338ff }
            // n = 4, score = 500
            //   488b0f               | dec                 eax
            //   488901               | mov                 dword ptr [esi + 0x28], eax
            //   488b07               | dec                 eax
            //   488338ff             | mov                 eax, dword ptr [esi + 0x38]

        $sequence_49 = { 48894628 488b4638 4c8d4c2450 448bc3 488bd7 }
            // n = 5, score = 500
            //   48894628             | mov                 ecx, esi
            //   488b4638             | inc                 esp
            //   4c8d4c2450           | lea                 eax, dword ptr [edx + 0x20]
            //   448bc3               | dec                 eax
            //   488bd7               | mov                 dword ptr [esi + 0x28], eax

        $sequence_50 = { 488b07 896830 33c0 488b5c2458 488b6c2460 }
            // n = 5, score = 500
            //   488b07               | dec                 esp
            //   896830               | lea                 ecx, dword ptr [esp + 0x50]
            //   33c0                 | inc                 esp
            //   488b5c2458           | mov                 eax, ebx
            //   488b6c2460           | dec                 eax

        $sequence_51 = { 488b0f 48894108 488b0f 488b4108 }
            // n = 4, score = 500
            //   488b0f               | inc                 esp
            //   48894108             | mov                 eax, ebx
            //   488b0f               | dec                 eax
            //   488b4108             | mov                 edx, edi

        $sequence_52 = { 8d8594faffff 50 68???????? ff15???????? }
            // n = 4, score = 200
            //   8d8594faffff         | lea                 eax, dword ptr [ebp - 0x56c]
            //   50                   | push                eax
            //   68????????           |                     
            //   ff15????????         |                     

        $sequence_53 = { 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_54 = { 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_55 = { 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_56 = { 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

        $sequence_57 = { 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_58 = { 0304b5100b4200 59 eb05 b8???????? }
            // n = 4, score = 100
            //   0304b5100b4200       | add                 eax, dword ptr [esi*4 + 0x420b10]
            //   59                   | pop                 ecx
            //   eb05                 | jmp                 7
            //   b8????????           |                     

        $sequence_59 = { 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

    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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