SYMBOLCOMMON_NAMEaka. SYNONYMS
win.flawedammyy (Back to overview)

FlawedAmmyy

Actor(s): TA505

URLhaus        

FlawedAmmyy is a well-known Remote Access Tool (RAT) attributed to criminal gang TA505 and used to get the control of target machines. The name reminds the strong link with the leaked source code of Ammyy Admin from which it took the main structure.

References
2021-06-16Національної поліції УкраїниНаціональна поліція України
@online{:20210616:cyberpolice:f455d86, author = {Національна поліція України}, title = {{Cyberpolice exposes hacker group in spreading encryption virus and causing half a billion dollars in damage to foreign companies}}, date = {2021-06-16}, organization = {Національної поліції України}, url = {https://www.npu.gov.ua/news/kiberzlochini/kiberpolicziya-vikrila-xakerske-ugrupovannya-u-rozpovsyudzhenni-virusu-shifruvalnika-ta-nanesenni-inozemnim-kompaniyam-piv-milyarda-dolariv-zbitkiv/}, language = {Ukrainian}, urldate = {2021-06-21} } Cyberpolice exposes hacker group in spreading encryption virus and causing half a billion dollars in damage to foreign companies
Clop Cobalt Strike FlawedAmmyy
2020-08-20CERT-FRCERT-FR
@techreport{certfr:20200820:development:d518522, author = {CERT-FR}, title = {{Development of the Activity of the TA505 Cybercriminal Group}}, date = {2020-08-20}, institution = {CERT-FR}, url = {https://www.cert.ssi.gouv.fr/uploads/CERTFR-2020-CTI-009.pdf}, language = {English}, urldate = {2020-08-28} } Development of the Activity of the TA505 Cybercriminal Group
AndroMut Bart Clop Dridex FlawedAmmyy FlawedGrace Get2 Locky Marap QuantLoader SDBbot ServHelper tRat TrickBot
2020-05-21Intel 471Intel 471
@online{471:20200521:brief:048d164, author = {Intel 471}, title = {{A brief history of TA505}}, date = {2020-05-21}, organization = {Intel 471}, url = {https://intel471.com/blog/a-brief-history-of-ta505}, language = {English}, urldate = {2022-02-14} } A brief history of TA505
AndroMut Bart Dridex FlawedAmmyy FlawedGrace Gandcrab Get2 GlobeImposter Jaff Kegotip Locky Necurs Philadephia Ransom Pony QuantLoader Rockloader SDBbot ServHelper Shifu Snatch TrickBot
2020-05-20PTSecurityPT ESC Threat Intelligence
@online{intelligence:20200520:operation:7f6282e, author = {PT ESC Threat Intelligence}, title = {{Operation TA505: how we analyzed new tools from the creators of the Dridex trojan, Locky ransomware, and Neutrino botnet}}, date = {2020-05-20}, organization = {PTSecurity}, url = {https://www.ptsecurity.com/ww-en/analytics/pt-esc-threat-intelligence/operation-ta505/}, language = {English}, urldate = {2020-06-05} } Operation TA505: how we analyzed new tools from the creators of the Dridex trojan, Locky ransomware, and Neutrino botnet
FlawedAmmyy
2020-03-04CrowdStrikeCrowdStrike
@techreport{crowdstrike:20200304:2020:818c85f, author = {CrowdStrike}, title = {{2020 CrowdStrike Global Threat Report}}, date = {2020-03-04}, institution = {CrowdStrike}, url = {https://go.crowdstrike.com/rs/281-OBQ-266/images/Report2020CrowdStrikeGlobalThreatReport.pdf}, language = {English}, urldate = {2020-07-24} } 2020 CrowdStrike Global Threat Report
MESSAGETAP More_eggs 8.t Dropper Anchor BabyShark BadNews Clop Cobalt Strike CobInt Cobra Carbon System Cutwail DanaBot Dharma DoppelDridex DoppelPaymer Dridex Emotet FlawedAmmyy FriedEx Gandcrab Get2 IcedID ISFB KerrDown LightNeuron LockerGoga Maze MECHANICAL Necurs Nokki Outlook Backdoor Phobos Predator The Thief QakBot REvil RobinHood Ryuk SDBbot Skipper SmokeLoader TerraRecon TerraStealer TerraTV TinyLoader TrickBot Vidar Winnti ANTHROPOID SPIDER APT31 APT39 BlackTech BuhTrap Charming Kitten CLOCKWORK SPIDER DOPPEL SPIDER FIN7 Gamaredon Group Leviathan MONTY SPIDER Mustang Panda NARWHAL SPIDER NOCTURNAL SPIDER PINCHY SPIDER Pirate Panda SALTY SPIDER SCULLY SPIDER SMOKY SPIDER Thrip VENOM SPIDER VICEROY TIGER
2020-03-03PWC UKPWC UK
@techreport{uk:20200303:cyber:1f1eef0, author = {PWC UK}, title = {{Cyber Threats 2019:A Year in Retrospect}}, date = {2020-03-03}, institution = {PWC UK}, url = {https://www.pwc.co.uk/cyber-security/assets/cyber-threats-2019-retrospect.pdf}, language = {English}, urldate = {2020-03-03} } Cyber Threats 2019:A Year in Retrospect
KevDroid MESSAGETAP magecart AndroMut Cobalt Strike CobInt Crimson RAT DNSpionage Dridex Dtrack Emotet FlawedAmmyy FlawedGrace FriedEx Gandcrab Get2 GlobeImposter Grateful POS ISFB Kazuar LockerGoga Nokki QakBot Ramnit REvil Rifdoor RokRAT Ryuk shadowhammer ShadowPad Shifu Skipper StoneDrill Stuxnet TrickBot Winnti ZeroCleare Axiom
2020-02-28Financial Security InstituteFinancial Security Institute
@online{institute:20200228:profiling:ebaa39b, author = {Financial Security Institute}, title = {{Profiling of TA505 Threat Group That Continues to Attack the Financial Sector}}, date = {2020-02-28}, organization = {Financial Security Institute}, url = {https://www.fsec.or.kr/common/proc/fsec/bbs/163/fileDownLoad/2297.do}, language = {English}, urldate = {2020-02-28} } Profiling of TA505 Threat Group That Continues to Attack the Financial Sector
Amadey Clop FlawedAmmyy Rapid Ransom SDBbot TinyMet
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:gold:f38f910, author = {SecureWorks}, title = {{GOLD TAHOE}}, date = {2020}, organization = {Secureworks}, url = {https://www.secureworks.com/research/threat-profiles/gold-tahoe}, language = {English}, urldate = {2020-05-23} } GOLD TAHOE
Clop FlawedAmmyy FlawedGrace Get2 SDBbot ServHelper TA505
2019-08-29ThreatReconThreatRecon Team
@online{team:20190829:sectorj04:ce6cc4b, author = {ThreatRecon Team}, title = {{SectorJ04 Group’s Increased Activity in 2019}}, date = {2019-08-29}, organization = {ThreatRecon}, url = {https://threatrecon.nshc.net/2019/08/29/sectorj04-groups-increased-activity-in-2019/}, language = {English}, urldate = {2019-10-13} } SectorJ04 Group’s Increased Activity in 2019
FlawedAmmyy ServHelper TA505
2019-08-27Trend MicroHara Hiroaki, Jaromír Hořejší, Loseway Lu
@online{hiroaki:20190827:ta505:9bcbff1, author = {Hara Hiroaki and Jaromír Hořejší and Loseway Lu}, title = {{TA505 At It Again: Variety is the Spice of ServHelper and FlawedAmmyy}}, date = {2019-08-27}, organization = {Trend Micro}, url = {https://blog.trendmicro.com/trendlabs-security-intelligence/ta505-at-it-again-variety-is-the-spice-of-servhelper-and-flawedammyy/}, language = {English}, urldate = {2019-11-27} } TA505 At It Again: Variety is the Spice of ServHelper and FlawedAmmyy
FlawedAmmyy ServHelper
2019-07-02ProofpointMatthew Mesa, Dennis Schwarz, Proofpoint Threat Insight Team
@online{mesa:20190702:ta505:7f99961, author = {Matthew Mesa and Dennis Schwarz and Proofpoint Threat Insight Team}, title = {{TA505 begins summer campaigns with a new pet malware downloader, AndroMut, in the UAE, South Korea, Singapore, and the United States}}, date = {2019-07-02}, organization = {Proofpoint}, url = {https://www.proofpoint.com/us/threat-insight/post/ta505-begins-summer-campaigns-new-pet-malware-downloader-andromut-uae-south}, language = {English}, urldate = {2019-11-26} } TA505 begins summer campaigns with a new pet malware downloader, AndroMut, in the UAE, South Korea, Singapore, and the United States
AndroMut FlawedAmmyy
2019-05-31Youtube (0verfl0w_)0verfl0w_
@online{0verfl0w:20190531:defeating:eb0994e, author = {0verfl0w_}, title = {{Defeating Commercial and Custom Packers like a Pro - VMProtect, ASPack, PECompact, and more}}, date = {2019-05-31}, organization = {Youtube (0verfl0w_)}, url = {https://www.youtube.com/watch?v=N4f2e8Mygag}, language = {English}, urldate = {2020-01-08} } Defeating Commercial and Custom Packers like a Pro - VMProtect, ASPack, PECompact, and more
FlawedAmmyy Ramnit
2019-05-28MITREMITRE
@online{mitre:20190528:flawedammyy:c4f6363, author = {MITRE}, title = {{FlawedAmmyy}}, date = {2019-05-28}, organization = {MITRE}, url = {https://attack.mitre.org/software/S0381/}, language = {English}, urldate = {2020-01-13} } FlawedAmmyy
FlawedAmmyy
2019-04-22SANSMike Downey
@online{downey:20190422:unpacking:2cb6558, author = {Mike Downey}, title = {{Unpacking & Decrypting FlawedAmmyy}}, date = {2019-04-22}, organization = {SANS}, url = {https://www.sans.org/reading-room/whitepapers/reverseengineeringmalware/unpacking-decrypting-flawedammyy-38930}, language = {English}, urldate = {2020-01-09} } Unpacking & Decrypting FlawedAmmyy
FlawedAmmyy
2018-10-01Macnica NetworksMacnica Networks
@techreport{networks:20181001:trends:17b1db5, author = {Macnica Networks}, title = {{Trends in cyber espionage (targeted attacks) targeting Japan | First half of 2018}}, date = {2018-10-01}, institution = {Macnica Networks}, url = {https://www.macnica.net/file/mpressioncss_2018-1h-report_mnc_rev3_nopw.pdf}, language = {Japanese}, urldate = {2021-03-02} } Trends in cyber espionage (targeted attacks) targeting Japan | First half of 2018
Anel Cobalt Strike Datper FlawedAmmyy Quasar RAT RedLeaves taidoor Winnti xxmm
2018-07-19ProofpointProofpoint Staff
@online{staff:20180719:ta505:3c29d5a, author = {Proofpoint Staff}, title = {{TA505 Abusing SettingContent-ms within PDF files to Distribute FlawedAmmyy RAT}}, date = {2018-07-19}, organization = {Proofpoint}, url = {https://www.proofpoint.com/us/threat-insight/post/ta505-abusing-settingcontent-ms-within-pdf-files-distribute-flawedammyy-rat}, language = {English}, urldate = {2019-12-20} } TA505 Abusing SettingContent-ms within PDF files to Distribute FlawedAmmyy RAT
FlawedAmmyy
2018-06-28Secrary BlogLasha Khasaia
@online{khasaia:20180628:brief:d854824, author = {Lasha Khasaia}, title = {{A Brief Overview of the AMMYY RAT Downloader}}, date = {2018-06-28}, organization = {Secrary Blog}, url = {https://secrary.com/ReversingMalware/AMMY_RAT_Downloader/}, language = {English}, urldate = {2020-01-13} } A Brief Overview of the AMMYY RAT Downloader
FlawedAmmyy
2018-03-07ProofpointProofpoint Staff
@online{staff:20180307:leaked:5e33f64, author = {Proofpoint Staff}, title = {{Leaked Ammyy Admin Source Code Turned into Malware}}, date = {2018-03-07}, organization = {Proofpoint}, url = {https://www.proofpoint.com/us/threat-insight/post/leaked-source-code-ammyy-admin-turned-flawedammyy-rat}, language = {English}, urldate = {2019-12-20} } Leaked Ammyy Admin Source Code Turned into Malware
FlawedAmmyy QuantLoader
2016-10-11SymantecSymantec Security Response
@online{response:20161011:odinaff:bdd6f10, author = {Symantec Security Response}, title = {{Odinaff: New Trojan used in high level financial attacks}}, date = {2016-10-11}, organization = {Symantec}, url = {https://web.archive.org/web/20161223002016/https://www.symantec.com/connect/blogs/odinaff-new-trojan-used-high-level-financial-attacks}, language = {English}, urldate = {2020-04-21} } Odinaff: New Trojan used in high level financial attacks
Batel FlawedAmmyy Odinaff RMS FIN7
Yara Rules
[TLP:WHITE] win_flawedammyy_auto (20220516 | Detects win.flawedammyy.)
rule win_flawedammyy_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-05-16"
        version = "1"
        description = "Detects win.flawedammyy."
        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.flawedammyy"
        malpedia_rule_date = "20220513"
        malpedia_hash = "7f4b2229e6ae614d86d74917f6d5b41890e62a26"
        malpedia_version = "20220516"
        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 = { 33ff 8985f4feffff b8cdcccccc f7e7 }
            // n = 4, score = 200
            //   33ff                 | xor                 edi, edi
            //   8985f4feffff         | mov                 dword ptr [ebp - 0x10c], eax
            //   b8cdcccccc           | mov                 eax, 0xcccccccd
            //   f7e7                 | mul                 edi

        $sequence_1 = { 33ff 897de8 85db 7429 81fb22222202 771c }
            // n = 6, score = 200
            //   33ff                 | xor                 edi, edi
            //   897de8               | mov                 dword ptr [ebp - 0x18], edi
            //   85db                 | test                ebx, ebx
            //   7429                 | je                  0x2b
            //   81fb22222202         | cmp                 ebx, 0x2222222
            //   771c                 | ja                  0x1e

        $sequence_2 = { 33ff 8a1401 8b8e98160000 8b869c160000 }
            // n = 4, score = 200
            //   33ff                 | xor                 edi, edi
            //   8a1401               | mov                 dl, byte ptr [ecx + eax]
            //   8b8e98160000         | mov                 ecx, dword ptr [esi + 0x1698]
            //   8b869c160000         | mov                 eax, dword ptr [esi + 0x169c]

        $sequence_3 = { 85f6 7404 8b36 eb02 33f6 f30f7e45ac }
            // n = 6, score = 200
            //   85f6                 | test                esi, esi
            //   7404                 | je                  6
            //   8b36                 | mov                 esi, dword ptr [esi]
            //   eb02                 | jmp                 4
            //   33f6                 | xor                 esi, esi
            //   f30f7e45ac           | movq                xmm0, qword ptr [ebp - 0x54]

        $sequence_4 = { 0000 0404 0404 0404 0401 0404 }
            // n = 6, score = 200
            //   0000                 | add                 byte ptr [eax], al
            //   0404                 | add                 al, 4
            //   0404                 | add                 al, 4
            //   0404                 | add                 al, 4
            //   0401                 | add                 al, 1
            //   0404                 | add                 al, 4

        $sequence_5 = { ffd6 8d85bcfdffff 50 ffd3 e8???????? }
            // n = 5, score = 200
            //   ffd6                 | call                esi
            //   8d85bcfdffff         | lea                 eax, [ebp - 0x244]
            //   50                   | push                eax
            //   ffd3                 | call                ebx
            //   e8????????           |                     

        $sequence_6 = { 33ff 8b02 837c245408 894510 }
            // n = 4, score = 200
            //   33ff                 | xor                 edi, edi
            //   8b02                 | mov                 eax, dword ptr [edx]
            //   837c245408           | cmp                 dword ptr [esp + 0x54], 8
            //   894510               | mov                 dword ptr [ebp + 0x10], eax

        $sequence_7 = { e8???????? 68dff0f081 6a01 e8???????? 83c424 8d8db8fbffff 51 }
            // n = 7, score = 200
            //   e8????????           |                     
            //   68dff0f081           | push                0x81f0f0df
            //   6a01                 | push                1
            //   e8????????           |                     
            //   83c424               | add                 esp, 0x24
            //   8d8db8fbffff         | lea                 ecx, [ebp - 0x448]
            //   51                   | push                ecx

        $sequence_8 = { 33ff 897dfc 85f6 742a }
            // n = 4, score = 200
            //   33ff                 | xor                 edi, edi
            //   897dfc               | mov                 dword ptr [ebp - 4], edi
            //   85f6                 | test                esi, esi
            //   742a                 | je                  0x2c

        $sequence_9 = { 50 ff513c 8d4df0 e8???????? 8d8570fbffff }
            // n = 5, score = 200
            //   50                   | push                eax
            //   ff513c               | call                dword ptr [ecx + 0x3c]
            //   8d4df0               | lea                 ecx, [ebp - 0x10]
            //   e8????????           |                     
            //   8d8570fbffff         | lea                 eax, [ebp - 0x490]

        $sequence_10 = { e8???????? 8bc7 c1f805 83e71f c1e706 8b048588ae4100 83c00c }
            // n = 7, score = 200
            //   e8????????           |                     
            //   8bc7                 | mov                 eax, edi
            //   c1f805               | sar                 eax, 5
            //   83e71f               | and                 edi, 0x1f
            //   c1e706               | shl                 edi, 6
            //   8b048588ae4100       | mov                 eax, dword ptr [eax*4 + 0x41ae88]
            //   83c00c               | add                 eax, 0xc

        $sequence_11 = { 8a17 0fb6c3 fec3 0fb60408 02c2 02f0 }
            // n = 6, score = 200
            //   8a17                 | mov                 dl, byte ptr [edi]
            //   0fb6c3               | movzx               eax, bl
            //   fec3                 | inc                 bl
            //   0fb60408             | movzx               eax, byte ptr [eax + ecx]
            //   02c2                 | add                 al, dl
            //   02f0                 | add                 dh, al

        $sequence_12 = { 3907 750f e8???????? 8bc6 e8???????? c20400 2b07 }
            // n = 7, score = 200
            //   3907                 | cmp                 dword ptr [edi], eax
            //   750f                 | jne                 0x11
            //   e8????????           |                     
            //   8bc6                 | mov                 eax, esi
            //   e8????????           |                     
            //   c20400               | ret                 4
            //   2b07                 | sub                 eax, dword ptr [edi]

        $sequence_13 = { 33ff 898dd8feffff 89bdd0fdffff 384e46 }
            // n = 4, score = 200
            //   33ff                 | xor                 edi, edi
            //   898dd8feffff         | mov                 dword ptr [ebp - 0x128], ecx
            //   89bdd0fdffff         | mov                 dword ptr [ebp - 0x230], edi
            //   384e46               | cmp                 byte ptr [esi + 0x46], cl

        $sequence_14 = { 660fd64008 f30f7e45a4 8bc4 83ec10 660fd600 }
            // n = 5, score = 200
            //   660fd64008           | movq                qword ptr [eax + 8], xmm0
            //   f30f7e45a4           | movq                xmm0, qword ptr [ebp - 0x5c]
            //   8bc4                 | mov                 eax, esp
            //   83ec10               | sub                 esp, 0x10
            //   660fd600             | movq                qword ptr [eax], xmm0

        $sequence_15 = { ff15???????? 6a00 6a23 8d85b0faffff 50 }
            // n = 5, score = 200
            //   ff15????????         |                     
            //   6a00                 | push                0
            //   6a23                 | push                0x23
            //   8d85b0faffff         | lea                 eax, [ebp - 0x550]
            //   50                   | push                eax

        $sequence_16 = { 8b7df4 8b0c855c303400 c1e705 33d2 }
            // n = 4, score = 100
            //   8b7df4               | mov                 edi, dword ptr [ebp - 0xc]
            //   8b0c855c303400       | mov                 ecx, dword ptr [eax*4 + 0x34305c]
            //   c1e705               | shl                 edi, 5
            //   33d2                 | xor                 edx, edx

        $sequence_17 = { 3bc8 7e06 c60720 47 eb2e 57 ff15???????? }
            // n = 7, score = 100
            //   3bc8                 | cmp                 ecx, eax
            //   7e06                 | jle                 8
            //   c60720               | mov                 byte ptr [edi], 0x20
            //   47                   | inc                 edi
            //   eb2e                 | jmp                 0x30
            //   57                   | push                edi
            //   ff15????????         |                     

        $sequence_18 = { 8975ec 803f5c 741a 8d85ccfdffff }
            // n = 4, score = 100
            //   8975ec               | mov                 dword ptr [ebp - 0x14], esi
            //   803f5c               | cmp                 byte ptr [edi], 0x5c
            //   741a                 | je                  0x1c
            //   8d85ccfdffff         | lea                 eax, [ebp - 0x234]

        $sequence_19 = { 8b04855c303400 c1e002 50 6a40 ff15???????? 8906 }
            // n = 6, score = 100
            //   8b04855c303400       | mov                 eax, dword ptr [eax*4 + 0x34305c]
            //   c1e002               | shl                 eax, 2
            //   50                   | push                eax
            //   6a40                 | push                0x40
            //   ff15????????         |                     
            //   8906                 | mov                 dword ptr [esi], eax

        $sequence_20 = { 8b35???????? ffd6 395d08 740e ff75f8 ff15???????? }
            // n = 6, score = 100
            //   8b35????????         |                     
            //   ffd6                 | call                esi
            //   395d08               | cmp                 dword ptr [ebp + 8], ebx
            //   740e                 | je                  0x10
            //   ff75f8               | push                dword ptr [ebp - 8]
            //   ff15????????         |                     

        $sequence_21 = { ff2485f6203400 8b8614080000 3b45f4 7e03 8945f4 8365fc00 8365f000 }
            // n = 7, score = 100
            //   ff2485f6203400       | jmp                 dword ptr [eax*4 + 0x3420f6]
            //   8b8614080000         | mov                 eax, dword ptr [esi + 0x814]
            //   3b45f4               | cmp                 eax, dword ptr [ebp - 0xc]
            //   7e03                 | jle                 5
            //   8945f4               | mov                 dword ptr [ebp - 0xc], eax
            //   8365fc00             | and                 dword ptr [ebp - 4], 0
            //   8365f000             | and                 dword ptr [ebp - 0x10], 0

        $sequence_22 = { c745e8ff000000 8b3c857c303400 c745ecffff0000 0faff9 }
            // n = 4, score = 100
            //   c745e8ff000000       | mov                 dword ptr [ebp - 0x18], 0xff
            //   8b3c857c303400       | mov                 edi, dword ptr [eax*4 + 0x34307c]
            //   c745ecffff0000       | mov                 dword ptr [ebp - 0x14], 0xffff
            //   0faff9               | imul                edi, ecx

        $sequence_23 = { c745a444000000 ff15???????? 50 8d85a4fbffff 50 ff15???????? }
            // n = 6, score = 100
            //   c745a444000000       | mov                 dword ptr [ebp - 0x5c], 0x44
            //   ff15????????         |                     
            //   50                   | push                eax
            //   8d85a4fbffff         | lea                 eax, [ebp - 0x45c]
            //   50                   | push                eax
            //   ff15????????         |                     

        $sequence_24 = { 50 ffd7 50 ffd7 a3???????? 56 }
            // n = 6, score = 100
            //   50                   | push                eax
            //   ffd7                 | call                edi
            //   50                   | push                eax
            //   ffd7                 | call                edi
            //   a3????????           |                     
            //   56                   | push                esi

        $sequence_25 = { 751e 837efcff 7518 8b46f8 8b04855c303400 c1e002 50 }
            // n = 7, score = 100
            //   751e                 | jne                 0x20
            //   837efcff             | cmp                 dword ptr [esi - 4], -1
            //   7518                 | jne                 0x1a
            //   8b46f8               | mov                 eax, dword ptr [esi - 8]
            //   8b04855c303400       | mov                 eax, dword ptr [eax*4 + 0x34305c]
            //   c1e002               | shl                 eax, 2
            //   50                   | push                eax

        $sequence_26 = { ffd7 ff75e8 ffd7 ff75e0 ffd7 ff75cc }
            // n = 6, score = 100
            //   ffd7                 | call                edi
            //   ff75e8               | push                dword ptr [ebp - 0x18]
            //   ffd7                 | call                edi
            //   ff75e0               | push                dword ptr [ebp - 0x20]
            //   ffd7                 | call                edi
            //   ff75cc               | push                dword ptr [ebp - 0x34]

        $sequence_27 = { eb02 8bc6 8b4ef8 83f907 0f8781000000 ff248dfd243400 881f }
            // n = 7, score = 100
            //   eb02                 | jmp                 4
            //   8bc6                 | mov                 eax, esi
            //   8b4ef8               | mov                 ecx, dword ptr [esi - 8]
            //   83f907               | cmp                 ecx, 7
            //   0f8781000000         | ja                  0x87
            //   ff248dfd243400       | jmp                 dword ptr [ecx*4 + 0x3424fd]
            //   881f                 | mov                 byte ptr [edi], bl

        $sequence_28 = { 68???????? 50 881f ff15???????? 53 8d85ccfdffff }
            // n = 6, score = 100
            //   68????????           |                     
            //   50                   | push                eax
            //   881f                 | mov                 byte ptr [edi], bl
            //   ff15????????         |                     
            //   53                   | push                ebx
            //   8d85ccfdffff         | lea                 eax, [ebp - 0x234]

        $sequence_29 = { 894dfc eb0e 8b14957c303400 49 0fafd1 }
            // n = 5, score = 100
            //   894dfc               | mov                 dword ptr [ebp - 4], ecx
            //   eb0e                 | jmp                 0x10
            //   8b14957c303400       | mov                 edx, dword ptr [edx*4 + 0x34307c]
            //   49                   | dec                 ecx
            //   0fafd1               | imul                edx, ecx

        $sequence_30 = { 8b542404 33c0 53 56 8a0a }
            // n = 5, score = 100
            //   8b542404             | mov                 edx, dword ptr [esp + 4]
            //   33c0                 | xor                 eax, eax
            //   53                   | push                ebx
            //   56                   | push                esi
            //   8a0a                 | mov                 cl, byte ptr [edx]

        $sequence_31 = { 83f807 0f87c9000000 ff248580233400 832700 e9???????? }
            // n = 5, score = 100
            //   83f807               | cmp                 eax, 7
            //   0f87c9000000         | ja                  0xcf
            //   ff248580233400       | jmp                 dword ptr [eax*4 + 0x342380]
            //   832700               | and                 dword ptr [edi], 0
            //   e9????????           |                     

    condition:
        7 of them and filesize < 1350656
}
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