SYMBOLCOMMON_NAMEaka. SYNONYMS
win.cobra (Back to overview)

Cobra Carbon System

aka: Carbon

Actor(s): Turla

URLhaus    

There is no description at this point.

References
2023-05-09CISACISA
@online{cisa:20230509:hunting:eee110d, author = {CISA}, title = {{Hunting Russian Intelligence “Snake” Malware}}, date = {2023-05-09}, organization = {CISA}, url = {https://www.cisa.gov/news-events/cybersecurity-advisories/aa23-129a}, language = {English}, urldate = {2023-05-10} } Hunting Russian Intelligence “Snake” Malware
Agent.BTZ Cobra Carbon System Uroburos
2020-10-28AccentureCyber Defense
@online{defense:20201028:turla:6f32714, author = {Cyber Defense}, title = {{Turla uses HyperStack, Carbon, and Kazuar to compromise government entity}}, date = {2020-10-28}, organization = {Accenture}, url = {https://www.accenture.com/us-en/blogs/cyber-defense/turla-belugasturgeon-compromises-government-entity}, language = {English}, urldate = {2020-10-29} } Turla uses HyperStack, Carbon, and Kazuar to compromise government entity
Cobra Carbon System Kazuar TurlaRPC Turla SilentMoon
2020-09-25Github (sisoma2)Marc
@online{marc:20200925:turla:06db824, author = {Marc}, title = {{Turla Carbon System}}, date = {2020-09-25}, organization = {Github (sisoma2)}, url = {https://github.com/sisoma2/malware_analysis/tree/master/turla_carbon}, language = {English}, urldate = {2020-10-02} } Turla Carbon System
Cobra Carbon System
2020-07-21YouTube ( OPCDE with Matt Suiche)Mohamad Mokbel
@online{mokbel:20200721:vopcde:26d48d0, author = {Mohamad Mokbel}, title = {{vOPCDE #9 - A Journey into Malware HTTP Communication Channels Spectacles (Mohamad Mokbel)}}, date = {2020-07-21}, organization = {YouTube ( OPCDE with Matt Suiche)}, url = {https://www.youtube.com/watch?v=FttiysUZmDw}, language = {English}, urldate = {2021-10-24} } vOPCDE #9 - A Journey into Malware HTTP Communication Channels Spectacles (Mohamad Mokbel)
Alureon Aytoke Cobra Carbon System CROSSWALK danbot ProtonBot Silence
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 APT23 APT31 APT39 APT40 BlackTech BuhTrap Charming Kitten CLOCKWORK SPIDER DOPPEL SPIDER FIN7 Gamaredon Group GOBLIN PANDA MONTY SPIDER MUSTANG PANDA NARWHAL SPIDER NOCTURNAL SPIDER PINCHY SPIDER SALTY SPIDER SCULLY SPIDER SMOKY SPIDER Thrip VENOM SPIDER VICEROY TIGER
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
2019-04-19Github (hfiref0x)hfiref0x
@online{hfiref0x:20190419:tdl:31ca191, author = {hfiref0x}, title = {{TDL (Turla Driver Loader) Repository}}, date = {2019-04-19}, organization = {Github (hfiref0x)}, url = {https://github.com/hfiref0x/TDL}, language = {English}, urldate = {2020-01-08} } TDL (Turla Driver Loader) Repository
Cobra Carbon System
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
2017-03-30ESET ResearchESET Research
@online{research:20170330:carbon:928505a, author = {ESET Research}, title = {{Carbon Paper: Peering into Turla’s second stage backdoor}}, date = {2017-03-30}, organization = {ESET Research}, url = {https://www.welivesecurity.com/2017/03/30/carbon-paper-peering-turlas-second-stage-backdoor/}, language = {English}, urldate = {2019-11-14} } Carbon Paper: Peering into Turla’s second stage backdoor
Cobra Carbon System Turla
2016-05-23MELANI GovCERTGovCERT.ch
@techreport{govcertch:20160523:case:b6612e9, author = {GovCERT.ch}, title = {{APT Case RUAG - Technical Report}}, date = {2016-05-23}, institution = {MELANI GovCERT}, url = {https://www.govcert.ch/downloads/whitepapers/Report_Ruag-Espionage-Case.pdf}, language = {English}, urldate = {2022-08-05} } APT Case RUAG - Technical Report
Cobra Carbon System
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
2015-01-20G DataG Data
@online{data:20150120:analysis:2fe6cf2, author = {G Data}, title = {{Analysis of Project Cobra}}, date = {2015-01-20}, organization = {G Data}, url = {https://blog.gdatasoftware.com/2015/01/23926-analysis-of-project-cobra}, language = {English}, urldate = {2020-01-05} } Analysis of Project Cobra
Cobra Carbon System
2014-08-07Kaspersky LabsGReAT
@online{great:20140807:epic:f8b0803, author = {GReAT}, title = {{The Epic Turla Operation}}, date = {2014-08-07}, organization = {Kaspersky Labs}, url = {https://securelist.com/analysis/publications/65545/the-epic-turla-operation/}, language = {English}, urldate = {2021-07-02} } The Epic Turla Operation
Cobra Carbon System Uroburos Wipbot Turla
2014circl.luCIRCL
@online{circl:2014:tr25:97f9b0e, author = {CIRCL}, title = {{TR-25 Analysis - Turla / Pfinet / Snake/ Uroburos}}, date = {2014}, organization = {circl.lu}, url = {https://www.circl.lu/pub/tr-25/}, language = {English}, urldate = {2020-07-01} } TR-25 Analysis - Turla / Pfinet / Snake/ Uroburos
Cobra Carbon System Uroburos Turla
Yara Rules
[TLP:WHITE] win_cobra_auto (20230715 | Detects win.cobra.)
rule win_cobra_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        version = "1"
        description = "Detects win.cobra."
        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.cobra"
        malpedia_rule_date = "20230705"
        malpedia_hash = "42d0574f4405bd7d2b154d321d345acb18834a41"
        malpedia_version = "20230715"
        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 = { 7511 e8???????? 85c0 7508 ff15???????? }
            // n = 5, score = 2900
            //   7511                 | dec                 eax
            //   e8????????           |                     
            //   85c0                 | add                 esp, 0xd48
            //   7508                 | inc                 ecx
            //   ff15????????         |                     

        $sequence_1 = { 757f 8b05???????? 85c0 0f8e8c000000 }
            // n = 4, score = 2500
            //   757f                 | jle                 0x92
            //   8b05????????         |                     
            //   85c0                 | sub                 eax, 1
            //   0f8e8c000000         | pop                 edi

        $sequence_2 = { 8b442408 85c0 750e 3905???????? 7e2c }
            // n = 5, score = 2500
            //   8b442408             | dec                 eax
            //   85c0                 | add                 esp, 0x20
            //   750e                 | mov                 eax, 0x21590001
            //   3905????????         |                     
            //   7e2c                 | dec                 eax

        $sequence_3 = { 5b c3 83fb01 7405 83fb02 7537 }
            // n = 6, score = 2500
            //   5b                   | add                 eax, 2
            //   c3                   | cmp                 cx, bx
            //   83fb01               | jne                 0xfffffffc
            //   7405                 | mov                 dword ptr [eax], edx
            //   83fb02               | add                 eax, 2
            //   7537                 | cmp                 cx, bx

        $sequence_4 = { c3 85db 7405 83fb03 }
            // n = 4, score = 2500
            //   c3                   | cmp                 ebx, 1
            //   85db                 | jne                 0x22
            //   7405                 | ret                 
            //   83fb03               | cmp                 eax, 1

        $sequence_5 = { 85c0 0f8e8c000000 83e801 8905???????? }
            // n = 4, score = 2500
            //   85c0                 | ret                 
            //   0f8e8c000000         | cmp                 ebx, 1
            //   83e801               | je                  0xb
            //   8905????????         |                     

        $sequence_6 = { 83f801 75f1 b900010000 e8???????? }
            // n = 4, score = 2500
            //   83f801               | push                0
            //   75f1                 | add                 eax, 2
            //   b900010000           | cmp                 cx, bx
            //   e8????????           |                     

        $sequence_7 = { ff25???????? 53 56 57 8bd9 33f6 }
            // n = 6, score = 2500
            //   ff25????????         |                     
            //   53                   | jne                 0xd
            //   56                   | jne                 0x3e
            //   57                   | mov                 ecx, 0x80
            //   8bd9                 | test                eax, eax
            //   33f6                 | test                eax, eax

        $sequence_8 = { 890d???????? 753c b980000000 e8???????? 85c0 a3???????? }
            // n = 6, score = 2500
            //   890d????????         |                     
            //   753c                 | add                 ecx, 8
            //   b980000000           | mov                 eax, 0x21590001
            //   e8????????           |                     
            //   85c0                 | dec                 esp
            //   a3????????           |                     

        $sequence_9 = { 5f 5e 5b c3 85ff 7418 }
            // n = 6, score = 2500
            //   5f                   | jne                 0x14
            //   5e                   | jmp                 5
            //   5b                   | mov                 edi, dword ptr [ebp + 0xc]
            //   c3                   | cmp                 edi, ebx
            //   85ff                 | cmp                 eax, 1
            //   7418                 | jne                 0xfffffff3

        $sequence_10 = { 85c0 a3???????? 7504 33c0 eb68 }
            // n = 5, score = 2500
            //   85c0                 | mov                 ecx, 0x80
            //   a3????????           |                     
            //   7504                 | test                eax, eax
            //   33c0                 | jne                 0xf
            //   eb68                 | xor                 eax, eax

        $sequence_11 = { e8???????? 8bf8 83fb01 751d 85ff }
            // n = 5, score = 2500
            //   e8????????           |                     
            //   8bf8                 | jne                 0xfffffffc
            //   83fb01               | add                 eax, 2
            //   751d                 | cmp                 cx, bx
            //   85ff                 | jne                 0xfffffffc

        $sequence_12 = { 85c0 750e 33ff 8bc7 }
            // n = 4, score = 2500
            //   85c0                 | jne                 0xfffffff6
            //   750e                 | mov                 ecx, 0x100
            //   33ff                 | ret                 
            //   8bc7                 | cmp                 eax, 1

        $sequence_13 = { 8d5e08 53 e8???????? ff7620 }
            // n = 4, score = 1900
            //   8d5e08               | jne                 5
            //   53                   | xor                 eax, eax
            //   e8????????           |                     
            //   ff7620               | ret                 

        $sequence_14 = { 8d45f8 50 6a02 8d45fc 50 57 ffd6 }
            // n = 7, score = 1900
            //   8d45f8               | jmp                 0x6e
            //   50                   | and                 dword ptr [eax], 0
            //   6a02                 | test                eax, eax
            //   8d45fc               | jne                 6
            //   50                   | xor                 eax, eax
            //   57                   | jmp                 0x6e
            //   ffd6                 | cmp                 dword ptr [eax + ecx], 0x4550

        $sequence_15 = { 7407 33c0 e9???????? ff15???????? e9???????? }
            // n = 5, score = 1900
            //   7407                 | jne                 0x12
            //   33c0                 | jle                 0x32
            //   e9????????           |                     
            //   ff15????????         |                     
            //   e9????????           |                     

        $sequence_16 = { 8bf0 83fe0a 7f07 33c0 e9???????? 53 }
            // n = 6, score = 1900
            //   8bf0                 | test                eax, eax
            //   83fe0a               | jne                 8
            //   7f07                 | xor                 eax, eax
            //   33c0                 | jmp                 0x70
            //   e9????????           |                     
            //   53                   | ret                 0xc

        $sequence_17 = { eb6d e8???????? 85c0 7564 }
            // n = 4, score = 1200
            //   eb6d                 | jmp                 0x6f
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   7564                 | jne                 0x66

        $sequence_18 = { e8???????? 33db 3bc3 741a }
            // n = 4, score = 1200
            //   e8????????           |                     
            //   33db                 | xor                 ebx, ebx
            //   3bc3                 | cmp                 eax, ebx
            //   741a                 | je                  0x1c

        $sequence_19 = { 85c0 7f07 e8???????? eb26 83c0ff }
            // n = 5, score = 1200
            //   85c0                 | test                eax, eax
            //   7f07                 | jg                  9
            //   e8????????           |                     
            //   eb26                 | jmp                 0x28
            //   83c0ff               | add                 eax, -1

        $sequence_20 = { e8???????? 85c0 7449 4885ed 7444 }
            // n = 5, score = 1100
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   7449                 | je                  0x4b
            //   4885ed               | dec                 eax
            //   7444                 | test                ebp, ebp

        $sequence_21 = { e8???????? 4c8b1e 498b03 488bd5 488bce ff5064 488b0e }
            // n = 7, score = 1100
            //   e8????????           |                     
            //   4c8b1e               | dec                 eax
            //   498b03               | and                 dword ptr [edi], 0
            //   488bd5               | and                 dword ptr [ebp], 0
            //   488bce               | mov                 eax, esi
            //   ff5064               | dec                 esp
            //   488b0e               | mov                 ebx, dword ptr [esi]

        $sequence_22 = { e8???????? 48832700 83650000 8bc6 }
            // n = 4, score = 1100
            //   e8????????           |                     
            //   48832700             | je                  0x46
            //   83650000             | dec                 eax
            //   8bc6                 | mov                 edi, dword ptr [esi]

        $sequence_23 = { eb0e 4883c108 e8???????? b801005921 }
            // n = 4, score = 1100
            //   eb0e                 | jmp                 0x6f
            //   4883c108             | test                eax, eax
            //   e8????????           |                     
            //   b801005921           | jne                 0x68

        $sequence_24 = { ba02000000 488bce e8???????? 498bce e8???????? 4c8b1e }
            // n = 6, score = 1100
            //   ba02000000           | dec                 esp
            //   488bce               | mov                 ebx, dword ptr [esi]
            //   e8????????           |                     
            //   498bce               | dec                 ecx
            //   e8????????           |                     
            //   4c8b1e               | mov                 eax, dword ptr [ebx]

        $sequence_25 = { 83781400 750a b865005921 e9???????? }
            // n = 4, score = 900
            //   83781400             | cmp                 esi, 0xa
            //   750a                 | jg                  0xc
            //   b865005921           | xor                 eax, eax
            //   e9????????           |                     

        $sequence_26 = { 83c002 663bcb 75f4 8b0d???????? 8b15???????? 8908 8b0d???????? }
            // n = 7, score = 800
            //   83c002               | mov                 ecx, dword ptr [ebp + 8]
            //   663bcb               | add                 eax, 2
            //   75f4                 | cmp                 cx, bx
            //   8b0d????????         |                     
            //   8b15????????         |                     
            //   8908                 | jne                 0xfffffff9
            //   8b0d????????         |                     

        $sequence_27 = { 6a03 68000000c0 50 ff15???????? 8bf0 83feff 7505 }
            // n = 7, score = 800
            //   6a03                 | mov                 dword ptr [eax], edx
            //   68000000c0           | add                 eax, 2
            //   50                   | cmp                 cx, bx
            //   ff15????????         |                     
            //   8bf0                 | jne                 0xfffffff9
            //   83feff               | mov                 dword ptr [eax], edx
            //   7505                 | mov                 ecx, dword ptr [ebp + 8]

        $sequence_28 = { 83c0fe 668b4802 83c002 663bcb 75f4 8b15???????? 8b0d???????? }
            // n = 7, score = 800
            //   83c0fe               | jne                 0x40
            //   668b4802             | mov                 ecx, 0x80
            //   83c002               | test                eax, eax
            //   663bcb               | mov                 ecx, dword ptr [ecx]
            //   75f4                 | jne                 0x40
            //   8b15????????         |                     
            //   8b0d????????         |                     

        $sequence_29 = { 6689440ffc 6685c0 75ee f685c003000010 }
            // n = 4, score = 800
            //   6689440ffc           | je                  0xa
            //   6685c0               | cmp                 ebx, 2
            //   75ee                 | jne                 0x41
            //   f685c003000010       | ret                 

        $sequence_30 = { 33c0 5e 5d c3 8b4d08 57 51 }
            // n = 7, score = 800
            //   33c0                 | jle                 0x36
            //   5e                   | mov                 eax, dword ptr [esp + 8]
            //   5d                   | test                eax, eax
            //   c3                   | jne                 0x16
            //   8b4d08               | jle                 0x36
            //   57                   | cmp                 eax, 1
            //   51                   | mov                 ecx, dword ptr [ecx]

        $sequence_31 = { 56 33db 57 6808020000 }
            // n = 4, score = 800
            //   56                   | jne                 0xfffffff6
            //   33db                 | mov                 dword ptr [eax], ecx
            //   57                   | pop                 esi
            //   6808020000           | pop                 ebp

        $sequence_32 = { 8d45e8 50 6a00 6aff e8???????? 85c0 7405 }
            // n = 7, score = 800
            //   8d45e8               | push                esi
            //   50                   | lea                 eax, [ebp - 8]
            //   6a00                 | push                eax
            //   6aff                 | push                2
            //   e8????????           |                     
            //   85c0                 | lea                 eax, [ebp - 4]
            //   7405                 | push                eax

        $sequence_33 = { 8b0d???????? 895004 894808 33c0 }
            // n = 4, score = 800
            //   8b0d????????         |                     
            //   895004               | test                eax, eax
            //   894808               | cmp                 dword ptr [eax + ecx], 0x4550
            //   33c0                 | jne                 0xc

        $sequence_34 = { 68???????? 51 ffd6 83c40c 6a28 }
            // n = 5, score = 800
            //   68????????           |                     
            //   51                   | push                edi
            //   ffd6                 | push                ecx
            //   83c40c               | push                0
            //   6a28                 | push                0

        $sequence_35 = { ff15???????? 83f87a 740b 3d230000c0 }
            // n = 4, score = 800
            //   ff15????????         |                     
            //   83f87a               | jne                 0x68
            //   740b                 | ret                 
            //   3d230000c0           | cmp                 ebx, 1

        $sequence_36 = { 51 6a00 6a00 56 ff15???????? 56 8bf8 }
            // n = 7, score = 800
            //   51                   | cmp                 eax, -1
            //   6a00                 | je                  9
            //   6a00                 | xor                 eax, eax
            //   56                   | cmp                 eax, -1
            //   ff15????????         |                     
            //   56                   | je                  0x10
            //   8bf8                 | xor                 eax, eax

        $sequence_37 = { 488b05???????? 4889470e 0fb705???????? 66894716 }
            // n = 4, score = 700
            //   488b05????????       |                     
            //   4889470e             | dec                 eax
            //   0fb705????????       |                     
            //   66894716             | mov                 ecx, esi

        $sequence_38 = { 75e8 85f6 74e4 418936 b801000000 4881c4480d0000 415f }
            // n = 7, score = 700
            //   75e8                 | test                al, al
            //   85f6                 | cmovne              edi, ecx
            //   74e4                 | dec                 eax
            //   418936               | mov                 ecx, esi
            //   b801000000           | mov                 ecx, 0x14
            //   4881c4480d0000       | test                al, al
            //   415f                 | cmovne              edi, ecx

        $sequence_39 = { 48894c2450 4c89642448 488d4c2468 48894c2440 4c89642438 }
            // n = 5, score = 700
            //   48894c2450           | jne                 0x10
            //   4c89642448           | xor                 edi, edi
            //   488d4c2468           | mov                 eax, edi
            //   48894c2440           | ret                 
            //   4c89642438           | test                ebx, ebx

        $sequence_40 = { 4881ec480d0000 4533e4 4c8bf1 488bda 488d8d10060000 33d2 41b808020000 }
            // n = 7, score = 700
            //   4881ec480d0000       | cmovne              edi, ecx
            //   4533e4               | dec                 eax
            //   4c8bf1               | mov                 ecx, esi
            //   488bda               | mov                 edx, edi
            //   488d8d10060000       | mov                 ecx, 0x14
            //   33d2                 | test                al, al
            //   41b808020000         | cmovne              edi, ecx

        $sequence_41 = { 84c0 0f45f9 488bce 8bd7 ff15???????? }
            // n = 5, score = 700
            //   84c0                 | test                ebx, ebx
            //   0f45f9               | je                  9
            //   488bce               | cmp                 ebx, 3
            //   8bd7                 | test                eax, eax
            //   ff15????????         |                     

        $sequence_42 = { 8d8588feffff 68???????? 50 ff15???????? 83c42c }
            // n = 5, score = 700
            //   8d8588feffff         | ret                 
            //   68????????           |                     
            //   50                   | cmp                 ebx, 1
            //   ff15????????         |                     
            //   83c42c               | je                  0xd

        $sequence_43 = { ff15???????? 488bcf ff15???????? 41b701 }
            // n = 4, score = 700
            //   ff15????????         |                     
            //   488bcf               | mov                 edx, edi
            //   ff15????????         |                     
            //   41b701               | dec                 eax

        $sequence_44 = { 7507 32c0 e9???????? c745b818000000 }
            // n = 4, score = 600
            //   7507                 | mov                 eax, 0x21590065
            //   32c0                 | xor                 eax, eax
            //   e9????????           |                     
            //   c745b818000000       | lea                 eax, [ebp - 0x18]

        $sequence_45 = { 83c002 6685c9 75f5 2bc2 d1f8 66837c43fe5c }
            // n = 6, score = 500
            //   83c002               | cmp                 ebx, 2
            //   6685c9               | pop                 esi
            //   75f5                 | pop                 ebx
            //   2bc2                 | ret                 
            //   d1f8                 | cmp                 ebx, 1
            //   66837c43fe5c         | je                  0xd

        $sequence_46 = { 05a1000000 50 8d84249c0d0000 68???????? }
            // n = 4, score = 300
            //   05a1000000           | ret                 
            //   50                   | cmp                 ebx, 1
            //   8d84249c0d0000       | je                  0xd
            //   68????????           |                     

        $sequence_47 = { 0f8431ffffff 8b4d08 5f 8931 }
            // n = 4, score = 300
            //   0f8431ffffff         | test                cx, cx
            //   8b4d08               | jne                 0xfffffffa
            //   5f                   | sub                 eax, edx
            //   8931                 | sar                 eax, 1

        $sequence_48 = { 0f8456feffff 807c241301 6800080000 0f8544020000 }
            // n = 4, score = 300
            //   0f8456feffff         | add                 esp, 0xc
            //   807c241301           | add                 eax, 0xa2
            //   6800080000           | push                eax
            //   0f8544020000         | lea                 ecx, [esp + 0xd9c]

        $sequence_49 = { 05a2000000 50 8d94249c0d0000 68???????? }
            // n = 4, score = 300
            //   05a2000000           | je                  0xb
            //   50                   | cmp                 ebx, 3
            //   8d94249c0d0000       | pop                 ebx
            //   68????????           |                     

        $sequence_50 = { 0f84100f0000 6800080000 57 56 }
            // n = 4, score = 300
            //   0f84100f0000         | mov                 ecx, edi
            //   6800080000           | lea                 ecx, [edi + 0x3e8]
            //   57                   | mov                 edi, ecx
            //   56                   | lea                 eax, [ebp - 0x178]

        $sequence_51 = { 05a2000000 50 8d8c249c0d0000 68???????? }
            // n = 4, score = 300
            //   05a2000000           | je                  0xd
            //   50                   | cmp                 ebx, 2
            //   8d8c249c0d0000       | pop                 edi
            //   68????????           |                     

        $sequence_52 = { 668cc8 c3 53 50 }
            // n = 4, score = 200
            //   668cc8               | test                eax, eax
            //   c3                   | push                0
            //   53                   | push                -1
            //   50                   | test                eax, eax

        $sequence_53 = { 85c0 740a b8050000c0 e9???????? }
            // n = 4, score = 200
            //   85c0                 | je                  0xb
            //   740a                 | push                0x18
            //   b8050000c0           | lea                 eax, [ebp - 0x18]
            //   e9????????           |                     

        $sequence_54 = { c745bc00000000 b9???????? ff15???????? 8845ff }
            // n = 4, score = 100
            //   c745bc00000000       | test                eax, eax
            //   b9????????           |                     
            //   ff15????????         |                     
            //   8845ff               | jne                 9

        $sequence_55 = { c745bc00000000 c645bb00 c645c700 c745dc00000000 }
            // n = 4, score = 100
            //   c745bc00000000       | push                ecx
            //   c645bb00             | mov                 ax, cs
            //   c645c700             | ret                 
            //   c745dc00000000       | push                ebx

    condition:
        7 of them and filesize < 1368064
}
[TLP:WHITE] win_cobra_w0   (20170512 | No description)
rule win_cobra_w0 {
    meta:
        author = "ESET Research"
        source = "https://www.welivesecurity.com/2017/03/30/carbon-paper-peering-turlas-second-stage-backdoor/#_footnote_2"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.cobra"
        malpedia_version = "20170512"
        malpedia_sharing = "TLP:WHITE"
        malpedia_license = ""

    strings:
        $s1 = "ModStart"
        $s2 = "ModuleStart"
        $t1 = "STOP|OK"
        $t2 = "STOP|KILL"

    condition:
        (uint16(0) == 0x5a4d) and (1 of ($s*)) and (1 of ($t*))
}
[TLP:WHITE] win_cobra_w1   (20170512 | No description)
import "pe"

rule win_cobra_w1 {
    meta:
        author = "ESET Research"
        source = "https://www.welivesecurity.com/2017/03/30/carbon-paper-peering-turlas-second-stage-backdoor/#_footnote_2"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.cobra"
        malpedia_version = "20170512"
        malpedia_sharing = "TLP:WHITE"
        malpedia_license = ""

    condition:
        (pe.version_info["InternalName"] contains "SERVICE.EXE" or
        pe.version_info["InternalName"] contains "MSIMGHLP.DLL" or
        pe.version_info["InternalName"] contains "MSXIML.DLL")
        and pe.version_info["CompanyName"] contains "Microsoft Corporation"
}
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