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 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
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 APT41 MUSTANG PANDA
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 (20230125 | Detects win.flawedammyy.)
rule win_flawedammyy_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        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 = "20230124"
        malpedia_hash = "2ee0eebba83dce3d019a90519f2f972c0fcf9686"
        malpedia_version = "20230125"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    /* DISCLAIMER
     * The strings used in this rule have been automatically selected from the
     * disassembly of memory dumps and unpacked files, using YARA-Signator.
     * The code and documentation is published here:
     * https://github.com/fxb-cocacoding/yara-signator
     * As Malpedia is used as data source, please note that for a given
     * number of families, only single samples are documented.
     * This likely impacts the degree of generalization these rules will offer.
     * Take the described generation method also into consideration when you
     * apply the rules in your use cases and assign them confidence levels.
     */


    strings:
        $sequence_0 = { 002a e342 0039 e342 }
            // n = 4, score = 200
            //   002a                 | add                 byte ptr [edx], ch
            //   e342                 | jecxz               0x44
            //   0039                 | add                 byte ptr [ecx], bh
            //   e342                 | jecxz               0x44

        $sequence_1 = { 0000 0404 0404 0404 0401 }
            // n = 5, score = 200
            //   0000                 | add                 byte ptr [eax], al
            //   0404                 | add                 al, 4
            //   0404                 | add                 al, 4
            //   0404                 | add                 al, 4
            //   0401                 | add                 al, 1

        $sequence_2 = { 0022 8a4200 828a4200bb8a42 00ff }
            // n = 4, score = 200
            //   0022                 | add                 byte ptr [edx], ah
            //   8a4200               | mov                 al, byte ptr [edx]
            //   828a4200bb8a42       | or                  byte ptr [edx - 0x7544ffbe], 0x42
            //   00ff                 | add                 bh, bh

        $sequence_3 = { 0039 e342 0048e3 42 }
            // n = 4, score = 200
            //   0039                 | add                 byte ptr [ecx], bh
            //   e342                 | jecxz               0x44
            //   0048e3               | add                 byte ptr [eax - 0x1d], cl
            //   42                   | inc                 edx

        $sequence_4 = { 6a01 8d45f4 50 8b8530e5ffff c645f40d 8b048588ae4100 ff3406 }
            // n = 7, score = 200
            //   6a01                 | push                1
            //   8d45f4               | lea                 eax, [ebp - 0xc]
            //   50                   | push                eax
            //   8b8530e5ffff         | mov                 eax, dword ptr [ebp - 0x1ad0]
            //   c645f40d             | mov                 byte ptr [ebp - 0xc], 0xd
            //   8b048588ae4100       | mov                 eax, dword ptr [eax*4 + 0x41ae88]
            //   ff3406               | push                dword ptr [esi + eax]

        $sequence_5 = { 0f844f090000 6a01 ff15???????? e8???????? 68e306e0fd }
            // n = 5, score = 200
            //   0f844f090000         | je                  0x955
            //   6a01                 | push                1
            //   ff15????????         |                     
            //   e8????????           |                     
            //   68e306e0fd           | push                0xfde006e3

        $sequence_6 = { 0062bf 42 0079bf 42 }
            // n = 4, score = 200
            //   0062bf               | add                 byte ptr [edx - 0x41], ah
            //   42                   | inc                 edx
            //   0079bf               | add                 byte ptr [ecx - 0x41], bh
            //   42                   | inc                 edx

        $sequence_7 = { 83c408 8d4dfc 51 6800040000 }
            // n = 4, score = 200
            //   83c408               | add                 esp, 8
            //   8d4dfc               | lea                 ecx, [ebp - 4]
            //   51                   | push                ecx
            //   6800040000           | push                0x400

        $sequence_8 = { 0000 48 8bf0 f3a5 }
            // n = 4, score = 200
            //   0000                 | add                 byte ptr [eax], al
            //   48                   | dec                 eax
            //   8bf0                 | mov                 esi, eax
            //   f3a5                 | rep movsd           dword ptr es:[edi], dword ptr [esi]

        $sequence_9 = { 83c408 8d8db0f9ffff 6a00 6a23 51 }
            // n = 5, score = 200
            //   83c408               | add                 esp, 8
            //   8d8db0f9ffff         | lea                 ecx, [ebp - 0x650]
            //   6a00                 | push                0
            //   6a23                 | push                0x23
            //   51                   | push                ecx

        $sequence_10 = { 0f849a010000 6a00 50 ff15???????? 50 6a40 }
            // n = 6, score = 200
            //   0f849a010000         | je                  0x1a0
            //   6a00                 | push                0
            //   50                   | push                eax
            //   ff15????????         |                     
            //   50                   | push                eax
            //   6a40                 | push                0x40

        $sequence_11 = { 004bbf 42 0062bf 42 }
            // n = 4, score = 200
            //   004bbf               | add                 byte ptr [ebx - 0x41], cl
            //   42                   | inc                 edx
            //   0062bf               | add                 byte ptr [edx - 0x41], ah
            //   42                   | inc                 edx

        $sequence_12 = { 85ff 7516 83c8ff e9???????? c745e4ccb34100 }
            // n = 5, score = 200
            //   85ff                 | test                edi, edi
            //   7516                 | jne                 0x18
            //   83c8ff               | or                  eax, 0xffffffff
            //   e9????????           |                     
            //   c745e4ccb34100       | mov                 dword ptr [ebp - 0x1c], 0x41b3cc

        $sequence_13 = { 0f845b010000 688fc80b57 6a04 e8???????? }
            // n = 4, score = 200
            //   0f845b010000         | je                  0x161
            //   688fc80b57           | push                0x570bc88f
            //   6a04                 | push                4
            //   e8????????           |                     

        $sequence_14 = { 0018 874200 58 874200 }
            // n = 4, score = 200
            //   0018                 | add                 byte ptr [eax], bl
            //   874200               | xchg                dword ptr [edx], eax
            //   58                   | pop                 eax
            //   874200               | xchg                dword ptr [edx], eax

        $sequence_15 = { 56 ffd0 68d5b03e72 6a01 e8???????? 83c408 56 }
            // n = 7, score = 200
            //   56                   | push                esi
            //   ffd0                 | call                eax
            //   68d5b03e72           | push                0x723eb0d5
            //   6a01                 | push                1
            //   e8????????           |                     
            //   83c408               | add                 esp, 8
            //   56                   | push                esi

        $sequence_16 = { 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_17 = { ff248580233400 832700 e9???????? 55 e8???????? eb1a }
            // n = 6, score = 100
            //   ff248580233400       | jmp                 dword ptr [eax*4 + 0x342380]
            //   832700               | and                 dword ptr [edi], 0
            //   e9????????           |                     
            //   55                   | push                ebp
            //   e8????????           |                     
            //   eb1a                 | jmp                 0x1c

        $sequence_18 = { ffd6 8b4de4 ff75f8 8d740101 ff15???????? }
            // n = 5, score = 100
            //   ffd6                 | call                esi
            //   8b4de4               | mov                 ecx, dword ptr [ebp - 0x1c]
            //   ff75f8               | push                dword ptr [ebp - 8]
            //   8d740101             | lea                 esi, [ecx + eax + 1]
            //   ff15????????         |                     

        $sequence_19 = { 6a1f 8885d0feffff 59 33c0 }
            // n = 4, score = 100
            //   6a1f                 | push                0x1f
            //   8885d0feffff         | mov                 byte ptr [ebp - 0x130], al
            //   59                   | pop                 ecx
            //   33c0                 | xor                 eax, eax

        $sequence_20 = { ff248dfd243400 881f eb76 ff30 }
            // n = 4, score = 100
            //   ff248dfd243400       | jmp                 dword ptr [ecx*4 + 0x3424fd]
            //   881f                 | mov                 byte ptr [edi], bl
            //   eb76                 | jmp                 0x78
            //   ff30                 | push                dword ptr [eax]

        $sequence_21 = { 8d8550ffffff 50 ff15???????? 8b45e0 }
            // n = 4, score = 100
            //   8d8550ffffff         | lea                 eax, [ebp - 0xb0]
            //   50                   | push                eax
            //   ff15????????         |                     
            //   8b45e0               | mov                 eax, dword ptr [ebp - 0x20]

        $sequence_22 = { 8b06 83661c00 83f807 0f87c9000000 ff248580233400 832700 }
            // n = 6, score = 100
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   83661c00             | and                 dword ptr [esi + 0x1c], 0
            //   83f807               | cmp                 eax, 7
            //   0f87c9000000         | ja                  0xcf
            //   ff248580233400       | jmp                 dword ptr [eax*4 + 0x342380]
            //   832700               | and                 dword ptr [edi], 0

        $sequence_23 = { 46 59 8bfe eb09 }
            // n = 4, score = 100
            //   46                   | inc                 esi
            //   59                   | pop                 ecx
            //   8bfe                 | mov                 edi, esi
            //   eb09                 | jmp                 0xb

        $sequence_24 = { 742e ff15???????? 8b4dc8 03ce 3bc1 }
            // n = 5, score = 100
            //   742e                 | je                  0x30
            //   ff15????????         |                     
            //   8b4dc8               | mov                 ecx, dword ptr [ebp - 0x38]
            //   03ce                 | add                 ecx, esi
            //   3bc1                 | cmp                 eax, ecx

        $sequence_25 = { 50 ff15???????? 8945fc 57 ff75fc ff15???????? }
            // n = 6, score = 100
            //   50                   | push                eax
            //   ff15????????         |                     
            //   8945fc               | mov                 dword ptr [ebp - 4], eax
            //   57                   | push                edi
            //   ff75fc               | push                dword ptr [ebp - 4]
            //   ff15????????         |                     

        $sequence_26 = { e9???????? 6a07 e9???????? 33c0 8b7df4 8b0c855c303400 c1e705 }
            // n = 7, score = 100
            //   e9????????           |                     
            //   6a07                 | push                7
            //   e9????????           |                     
            //   33c0                 | xor                 eax, eax
            //   8b7df4               | mov                 edi, dword ptr [ebp - 0xc]
            //   8b0c855c303400       | mov                 ecx, dword ptr [eax*4 + 0x34305c]
            //   c1e705               | shl                 edi, 5

        $sequence_27 = { 66895d80 50 8d8550ffffff 50 }
            // n = 4, score = 100
            //   66895d80             | mov                 word ptr [ebp - 0x80], bx
            //   50                   | push                eax
            //   8d8550ffffff         | lea                 eax, [ebp - 0xb0]
            //   50                   | push                eax

        $sequence_28 = { 57 ff75e8 ff15???????? 8b45f0 395d08 88987830ca01 }
            // n = 6, score = 100
            //   57                   | push                edi
            //   ff75e8               | push                dword ptr [ebp - 0x18]
            //   ff15????????         |                     
            //   8b45f0               | mov                 eax, dword ptr [ebp - 0x10]
            //   395d08               | cmp                 dword ptr [ebp + 8], ebx
            //   88987830ca01         | mov                 byte ptr [eax + 0x1ca3078], bl

        $sequence_29 = { 8b46f8 8b04855c303400 c1e002 50 6a40 ff15???????? 8906 }
            // n = 7, score = 100
            //   8b46f8               | mov                 eax, dword ptr [esi - 8]
            //   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_30 = { 8b0c855c303400 c1e705 33d2 03fe 42 837dfcff 8955dc }
            // n = 7, score = 100
            //   8b0c855c303400       | mov                 ecx, dword ptr [eax*4 + 0x34305c]
            //   c1e705               | shl                 edi, 5
            //   33d2                 | xor                 edx, edx
            //   03fe                 | add                 edi, esi
            //   42                   | inc                 edx
            //   837dfcff             | cmp                 dword ptr [ebp - 4], -1
            //   8955dc               | mov                 dword ptr [ebp - 0x24], edx

        $sequence_31 = { c705????????4c403400 ff7508 ff15???????? 5a 58 }
            // n = 5, score = 100
            //   c705????????4c403400     |     
            //   ff7508               | push                dword ptr [ebp + 8]
            //   ff15????????         |                     
            //   5a                   | pop                 edx
            //   58                   | pop                 eax

    condition:
        7 of them and filesize < 1350656
}
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