SYMBOLCOMMON_NAMEaka. SYNONYMS
win.cobra (Back to overview)

Cobra Carbon System

aka: Carbon

Actor(s): Turla Group

URLhaus    

There is no description at this point.

References
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 = {2020-02-27} } Shedding Skin – Turla’s Fresh Faces
KopiLuwak Cobra Carbon System Gazer 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
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 (20220808 | Detects win.cobra.)
rule win_cobra_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-08-05"
        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 = "20220805"
        malpedia_hash = "6ec06c64bcfdbeda64eff021c766b4ce34542b71"
        malpedia_version = "20220808"
        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                 | xor                 eax, eax
            //   e8????????           |                     
            //   85c0                 | pop                 ebp
            //   7508                 | ret                 
            //   ff15????????         |                     

        $sequence_1 = { 890d???????? 753c b980000000 e8???????? 85c0 a3???????? 7504 }
            // n = 7, score = 2500
            //   890d????????         |                     
            //   753c                 | jne                 0x3e
            //   b980000000           | mov                 ecx, 0x80
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   a3????????           |                     
            //   7504                 | jne                 6

        $sequence_2 = { 5b c3 83fb01 7405 83fb02 7537 }
            // n = 6, score = 2500
            //   5b                   | pop                 ebx
            //   c3                   | ret                 
            //   83fb01               | cmp                 ebx, 1
            //   7405                 | je                  7
            //   83fb02               | cmp                 ebx, 2
            //   7537                 | jne                 0x39

        $sequence_3 = { 85c0 750e 3905???????? 7e2c ff0d???????? 83f801 }
            // n = 6, score = 2500
            //   85c0                 | test                eax, eax
            //   750e                 | jne                 0x10
            //   3905????????         |                     
            //   7e2c                 | jle                 0x2e
            //   ff0d????????         |                     
            //   83f801               | cmp                 eax, 1

        $sequence_4 = { 8b442438 85c0 757f 8b05???????? }
            // n = 4, score = 2500
            //   8b442438             | mov                 eax, dword ptr [esp + 0x38]
            //   85c0                 | test                eax, eax
            //   757f                 | jne                 0x81
            //   8b05????????         |                     

        $sequence_5 = { ff25???????? 53 56 57 8bd9 33f6 53 }
            // n = 7, score = 2500
            //   ff25????????         |                     
            //   53                   | push                ebx
            //   56                   | push                esi
            //   57                   | push                edi
            //   8bd9                 | mov                 ebx, ecx
            //   33f6                 | xor                 esi, esi
            //   53                   | push                ebx

        $sequence_6 = { 5f 5e 5b c3 85ff 7418 }
            // n = 6, score = 2500
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi
            //   5b                   | pop                 ebx
            //   c3                   | ret                 
            //   85ff                 | test                edi, edi
            //   7418                 | je                  0x1a

        $sequence_7 = { 5b c3 85db 7405 83fb03 753b }
            // n = 6, score = 2500
            //   5b                   | pop                 ebx
            //   c3                   | ret                 
            //   85db                 | test                ebx, ebx
            //   7405                 | je                  7
            //   83fb03               | cmp                 ebx, 3
            //   753b                 | jne                 0x3d

        $sequence_8 = { 751c 8bcf ff15???????? 8d8fe8030000 8bf9 }
            // n = 5, score = 2500
            //   751c                 | jne                 0x1e
            //   8bcf                 | mov                 ecx, edi
            //   ff15????????         |                     
            //   8d8fe8030000         | lea                 ecx, [edi + 0x3e8]
            //   8bf9                 | mov                 edi, ecx

        $sequence_9 = { 757f 8b05???????? 85c0 0f8e8c000000 83e801 }
            // n = 5, score = 2500
            //   757f                 | jne                 0x81
            //   8b05????????         |                     
            //   85c0                 | test                eax, eax
            //   0f8e8c000000         | jle                 0x92
            //   83e801               | sub                 eax, 1

        $sequence_10 = { 83f801 75f1 b900010000 e8???????? }
            // n = 4, score = 2500
            //   83f801               | cmp                 eax, 1
            //   75f1                 | jne                 0xfffffff3
            //   b900010000           | mov                 ecx, 0x100
            //   e8????????           |                     

        $sequence_11 = { 7514 391d???????? 754d 33c0 }
            // n = 4, score = 2500
            //   7514                 | jne                 0x16
            //   391d????????         |                     
            //   754d                 | jne                 0x4f
            //   33c0                 | xor                 eax, eax

        $sequence_12 = { 85c0 a3???????? 7504 33c0 eb68 832000 }
            // n = 6, score = 2500
            //   85c0                 | test                eax, eax
            //   a3????????           |                     
            //   7504                 | jne                 6
            //   33c0                 | xor                 eax, eax
            //   eb68                 | jmp                 0x6a
            //   832000               | and                 dword ptr [eax], 0

        $sequence_13 = { 33d2 b9e8030000 f7f1 83f805 }
            // n = 4, score = 2300
            //   33d2                 | jmp                 0x6c
            //   b9e8030000           | and                 dword ptr [eax], 0
            //   f7f1                 | mov                 ecx, dword ptr [ecx]
            //   83f805               | jne                 0x3e

        $sequence_14 = { ff15???????? 57 89462c ff15???????? }
            // n = 4, score = 1900
            //   ff15????????         |                     
            //   57                   | push                edi
            //   89462c               | mov                 dword ptr [esi + 0x2c], eax
            //   ff15????????         |                     

        $sequence_15 = { ff5628 59 59 57 ffd3 }
            // n = 5, score = 1900
            //   ff5628               | ret                 0xc
            //   59                   | push                ebx
            //   59                   | push                esi
            //   57                   | push                edi
            //   ffd3                 | mov                 ebx, ecx

        $sequence_16 = { 83f8ff 7407 33c0 e9???????? ff15???????? e9???????? }
            // n = 6, score = 1900
            //   83f8ff               | cmp                 eax, -1
            //   7407                 | je                  9
            //   33c0                 | xor                 eax, eax
            //   e9????????           |                     
            //   ff15????????         |                     
            //   e9????????           |                     

        $sequence_17 = { e8???????? 33db 3bc3 741a }
            // n = 4, score = 1200
            //   e8????????           |                     
            //   33db                 | xor                 ebx, ebx
            //   3bc3                 | cmp                 eax, ebx
            //   741a                 | je                  0x1c

        $sequence_18 = { eb6d e8???????? 85c0 7564 }
            // n = 4, score = 1200
            //   eb6d                 | jmp                 0x6f
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   7564                 | jne                 0x66

        $sequence_19 = { 7f07 e8???????? eb26 83c0ff }
            // n = 4, score = 1200
            //   7f07                 | jg                  9
            //   e8????????           |                     
            //   eb26                 | jmp                 0x28
            //   83c0ff               | add                 eax, -1

        $sequence_20 = { b801005921 488b5c2430 488b6c2438 488b742440 488b7c2448 }
            // n = 5, score = 1100
            //   b801005921           | mov                 eax, 0x21590001
            //   488b5c2430           | dec                 eax
            //   488b6c2438           | mov                 ebx, dword ptr [esp + 0x30]
            //   488b742440           | dec                 eax
            //   488b7c2448           | mov                 ebp, dword ptr [esp + 0x38]

        $sequence_21 = { 83385c 7e4b 4c8b505c 4d85d2 7442 448b6c2470 4c8bce }
            // n = 7, score = 1100
            //   83385c               | jne                 0x66
            //   7e4b                 | dec                 eax
            //   4c8b505c             | mov                 ecx, dword ptr [ebx]
            //   4d85d2               | test                eax, eax
            //   7442                 | mov                 esi, eax
            //   448b6c2470           | jne                 0x2c
            //   4c8bce               | dec                 eax

        $sequence_22 = { 85c0 8bf0 7521 48833f00 }
            // n = 4, score = 1100
            //   85c0                 | dec                 eax
            //   8bf0                 | mov                 eax, dword ptr [ecx]
            //   7521                 | jmp                 0x6f
            //   48833f00             | test                eax, eax

        $sequence_23 = { 83781400 750a b865005921 e9???????? }
            // n = 4, score = 900
            //   83781400             | cmp                 dword ptr [eax + 0x14], 0
            //   750a                 | jne                 0xc
            //   b865005921           | mov                 eax, 0x21590065
            //   e9????????           |                     

        $sequence_24 = { 663bcb 75f4 8b15???????? 8b0d???????? }
            // n = 4, score = 800
            //   663bcb               | ret                 
            //   75f4                 | test                ebx, ebx
            //   8b15????????         |                     
            //   8b0d????????         |                     

        $sequence_25 = { 51 6a00 6a00 56 ff15???????? 56 }
            // n = 6, score = 800
            //   51                   | je                  0xb
            //   6a00                 | pop                 edi
            //   6a00                 | pop                 esi
            //   56                   | pop                 ebx
            //   ff15????????         |                     
            //   56                   | ret                 

        $sequence_26 = { 68000000c0 50 ff15???????? 8bf0 83feff 7505 }
            // n = 6, score = 800
            //   68000000c0           | mov                 dword ptr [eax], edx
            //   50                   | push                ebx
            //   ff15????????         |                     
            //   8bf0                 | push                esi
            //   83feff               | xor                 ebx, ebx
            //   7505                 | push                edi

        $sequence_27 = { 663bcb 75f4 8b0d???????? 8b15???????? 8908 8b0d???????? }
            // n = 6, score = 800
            //   663bcb               | ret                 
            //   75f4                 | cmp                 ebx, 1
            //   8b0d????????         |                     
            //   8b15????????         |                     
            //   8908                 | je                  0xd
            //   8b0d????????         |                     

        $sequence_28 = { 5e 5d c3 8b4d08 57 51 6a00 }
            // n = 7, score = 800
            //   5e                   | test                eax, eax
            //   5d                   | jne                 0x10
            //   c3                   | xor                 edi, edi
            //   8b4d08               | mov                 eax, edi
            //   57                   | push                ecx
            //   51                   | call                esi
            //   6a00                 | add                 esp, 0xc

        $sequence_29 = { 8d45e8 50 6a00 6aff e8???????? 85c0 7405 }
            // n = 7, score = 800
            //   8d45e8               | lea                 eax, [ebp - 0x18]
            //   50                   | push                eax
            //   6a00                 | push                0
            //   6aff                 | push                -1
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   7405                 | je                  7

        $sequence_30 = { 6689440ffc 6685c0 75ee f685c003000010 }
            // n = 4, score = 800
            //   6689440ffc           | cmp                 ebx, 2
            //   6685c0               | pop                 esi
            //   75ee                 | pop                 ebx
            //   f685c003000010       | ret                 

        $sequence_31 = { 53 56 33db 57 6808020000 }
            // n = 5, score = 800
            //   53                   | push                0xc0000000
            //   56                   | mov                 dword ptr [eax + 4], edx
            //   33db                 | mov                 dword ptr [eax + 8], ecx
            //   57                   | xor                 eax, eax
            //   6808020000           | cmp                 cx, bx

        $sequence_32 = { 8908 8b0d???????? 895004 894808 33c0 }
            // n = 5, score = 800
            //   8908                 | push                0x28
            //   8b0d????????         |                     
            //   895004               | cmp                 cx, bx
            //   894808               | jne                 0xfffffff6
            //   33c0                 | push                ecx

        $sequence_33 = { 68???????? 51 ffd6 83c40c 6a28 }
            // n = 5, score = 800
            //   68????????           |                     
            //   51                   | xor                 eax, eax
            //   ffd6                 | pop                 edi
            //   83c40c               | pop                 esi
            //   6a28                 | pop                 ebx

        $sequence_34 = { ff15???????? 83f87a 740b 3d230000c0 }
            // n = 4, score = 800
            //   ff15????????         |                     
            //   83f87a               | ret                 
            //   740b                 | cmp                 ebx, 1
            //   3d230000c0           | je                  0xb

        $sequence_35 = { 48894c2450 4c89642448 488d4c2468 48894c2440 4c89642438 }
            // n = 5, score = 700
            //   48894c2450           | je                  0x1c
            //   4c89642448           | pop                 ebx
            //   488d4c2468           | ret                 
            //   48894c2440           | test                ebx, ebx
            //   4c89642438           | je                  9

        $sequence_36 = { ff15???????? 488bcf ff15???????? 41b701 }
            // n = 4, score = 700
            //   ff15????????         |                     
            //   488bcf               | test                al, al
            //   ff15????????         |                     
            //   41b701               | cmovne              edi, ecx

        $sequence_37 = { 5b 5d c3 4585e4 }
            // n = 4, score = 700
            //   5b                   | mov                 dword ptr [esp + 0x48], esp
            //   5d                   | dec                 eax
            //   c3                   | lea                 ecx, [esp + 0x68]
            //   4585e4               | dec                 eax

        $sequence_38 = { 498bcd ff15???????? 4c8bac24400d0000 488bbc24880d0000 4885db }
            // n = 5, score = 700
            //   498bcd               | mov                 ecx, esi
            //   ff15????????         |                     
            //   4c8bac24400d0000     | mov                 edx, edi
            //   488bbc24880d0000     | test                eax, eax
            //   4885db               | dec                 esp

        $sequence_39 = { b914000000 84c0 0f45f9 488bce 8bd7 }
            // n = 5, score = 700
            //   b914000000           | cmp                 ebx, 1
            //   84c0                 | je                  0xc
            //   0f45f9               | pop                 ebx
            //   488bce               | ret                 
            //   8bd7                 | test                edi, edi

        $sequence_40 = { 8d8588feffff 68???????? 50 ff15???????? 83c42c }
            // n = 5, score = 700
            //   8d8588feffff         | jne                 0x3e
            //   68????????           |                     
            //   50                   | mov                 ecx, 0x80
            //   ff15????????         |                     
            //   83c42c               | test                eax, eax

        $sequence_41 = { 488bce 8bd7 ff15???????? 85c0 }
            // n = 4, score = 700
            //   488bce               | dec                 eax
            //   8bd7                 | lea                 ecx, [esp + 0x68]
            //   ff15????????         |                     
            //   85c0                 | dec                 eax

        $sequence_42 = { 7507 32c0 e9???????? c745b818000000 }
            // n = 4, score = 600
            //   7507                 | jne                 9
            //   32c0                 | xor                 al, al
            //   e9????????           |                     
            //   c745b818000000       | mov                 dword ptr [ebp - 0x48], 0x18

        $sequence_43 = { 668b08 83c002 6685c9 75f5 2bc2 d1f8 66837c43fe5c }
            // n = 7, score = 500
            //   668b08               | mov                 eax, dword ptr [esp + 8]
            //   83c002               | test                eax, eax
            //   6685c9               | jne                 0x10
            //   75f5                 | jle                 0x30
            //   2bc2                 | jne                 0x3e
            //   d1f8                 | mov                 ecx, 0x80
            //   66837c43fe5c         | test                eax, eax

        $sequence_44 = { 0f8456feffff 807c241301 6800080000 0f8544020000 }
            // n = 4, score = 300
            //   0f8456feffff         | push                eax
            //   807c241301           | lea                 ecx, [esp + 0xd9c]
            //   6800080000           | push                ecx
            //   0f8544020000         | add                 eax, 0xa2

        $sequence_45 = { 0f8431ffffff 8b4d08 5f 8931 }
            // n = 4, score = 300
            //   0f8431ffffff         | add                 eax, 0xa1
            //   8b4d08               | push                eax
            //   5f                   | lea                 eax, [esp + 0xd9c]
            //   8931                 | add                 eax, 0xa1

        $sequence_46 = { 05a2000000 50 8d8c249c0d0000 68???????? }
            // n = 4, score = 300
            //   05a2000000           | test                eax, eax
            //   50                   | jne                 0x10
            //   8d8c249c0d0000       | jle                 0x30
            //   68????????           |                     

        $sequence_47 = { 0f84100f0000 6800080000 57 56 }
            // n = 4, score = 300
            //   0f84100f0000         | add                 esp, 0x2c
            //   6800080000           | mov                 cx, word ptr [eax]
            //   57                   | add                 eax, 2
            //   56                   | test                cx, cx

        $sequence_48 = { 05a1000000 50 8d84249c0d0000 68???????? }
            // n = 4, score = 300
            //   05a1000000           | jne                 0x12
            //   50                   | jle                 0x32
            //   8d84249c0d0000       | test                eax, eax
            //   68????????           |                     

        $sequence_49 = { 05a2000000 50 8d94249c0d0000 68???????? }
            // n = 4, score = 300
            //   05a2000000           | jne                 0xc
            //   50                   | jne                 0x13
            //   8d94249c0d0000       | test                eax, eax
            //   68????????           |                     

        $sequence_50 = { 85c0 740a b8050000c0 e9???????? }
            // n = 4, score = 200
            //   85c0                 | test                eax, eax
            //   740a                 | je                  0xc
            //   b8050000c0           | mov                 eax, 0xc0000005
            //   e9????????           |                     

        $sequence_51 = { 668cc8 c3 53 50 }
            // n = 4, score = 200
            //   668cc8               | mov                 ax, cs
            //   c3                   | ret                 
            //   53                   | push                ebx
            //   50                   | push                eax

        $sequence_52 = { c745b800000000 c745c000000000 c745bc00000000 c745c400000000 c745c800000000 8b5508 }
            // n = 6, score = 100
            //   c745b800000000       | mov                 dword ptr [ebp - 0x48], 0
            //   c745c000000000       | mov                 dword ptr [ebp - 0x40], 0
            //   c745bc00000000       | mov                 dword ptr [ebp - 0x44], 0
            //   c745c400000000       | mov                 dword ptr [ebp - 0x3c], 0
            //   c745c800000000       | mov                 dword ptr [ebp - 0x38], 0
            //   8b5508               | mov                 edx, dword ptr [ebp + 8]

        $sequence_53 = { c745b800000000 c745c000000000 c745c400000000 8b4d08 }
            // n = 4, score = 100
            //   c745b800000000       | mov                 dword ptr [ebp - 0x48], 0
            //   c745c000000000       | mov                 dword ptr [ebp - 0x40], 0
            //   c745c400000000       | mov                 dword ptr [ebp - 0x3c], 0
            //   8b4d08               | mov                 ecx, dword ptr [ebp + 8]

    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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