Categories: Backdoor

Backdoor:MSIL/Sisbot.A malicious file

The Backdoor:MSIL/Sisbot.A is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Backdoor:MSIL/Sisbot.A virus can do?

  • CAPE extracted potentially suspicious content
  • Authenticode signature is invalid
  • Anomalous .NET characteristics
  • Installs itself for autorun at Windows startup
  • Creates a copy of itself
  • Harvests credentials from local FTP client softwares

How to determine Backdoor:MSIL/Sisbot.A?


File Info:

name: 282CAB6184384C11A766.mlwpath: /opt/CAPEv2/storage/binaries/a5b12c7dba0668da696330cbcc201d4018e9f33ab062267bcfc9037fe94efe4bcrc32: 9AB5BC39md5: 282cab6184384c11a766e4a1c22d327csha1: ecee19f8e092127bef5be428c6776e67ad133a49sha256: a5b12c7dba0668da696330cbcc201d4018e9f33ab062267bcfc9037fe94efe4bsha512: c529cfece5dec534bdbf16dddb27ad1049371fdce8b8fb590bf170118043854e9de35c4cdc75001d9afbfe4f45867a1392b3fb0b85c685a1a8c6b8338d29ec62ssdeep: 12288:AyVK5pCy1dZZMWwNHnSat5ZfjAHwK1ZJ1OSo9OIOhWfw3kWpbPyn/0eHLnR:cB1zZdwNHnSufMkSnIi3k+PynMaRtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1EC153C103794EA1ED1FF4A34D475482903F0E2063666EBAA5BA0F19E3C93F819D653B7sha3_384: 03af3d175cff44d4c5b4c73706695fa7203037e07ff5c4bb7e409fac9259768287385220001734ff9645ddbcff393a31ep_bytes: ff250020400000000000000000000000timestamp: 2023-06-04 05:18:06

Version Info:

Translation: 0x0000 0x04b0FileDescription: FileVersion: 0.0.0.0InternalName: rwszjj1t.exeLegalCopyright: OriginalFilename: rwszjj1t.exeProductVersion: 0.0.0.0Assembly Version: 0.0.0.0

Backdoor:MSIL/Sisbot.A also known as:

Bkav W32.AIDetectMalware
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKDZ.56853
ClamAV Win.Ircbot.Generickdz-9843485-0
ALYac Trojan.GenericKDZ.56853
Malwarebytes AutoRun.Trojan.MSIL.DDS
VIPRE Trojan.GenericKDZ.56853
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
K7GW Trojan ( 700000121 )
K7AntiVirus Trojan ( 700000121 )
Baidu MSIL.Worm.Autorun.a
VirIT Trojan.Win32.DownLoader7.CECP
Cyren W32/MSIL_Troj.CI.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Autorun.Agent.ET
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.GenericKDZ.56853
NANO-Antivirus Trojan.Win32.IRCBot.dbizwe
Avast Win32:GenMalicious-HFG [Trj]
Tencent Worm.Msil.Autorun.ya
Emsisoft Trojan.GenericKDZ.56853 (B)
F-Secure Trojan.TR/IRCbot.agbs
DrWeb Trojan.DownLoader7.37923
TrendMicro BKDR_SISBOT.SMILA
McAfee-GW-Edition BehavesLike.Win32.Backdoor.dm
Trapmine malicious.high.ml.score
FireEye Generic.mg.282cab6184384c11
Sophos Troj/MSIL-IO
SentinelOne Static AI – Malicious PE
GData Trojan.GenericKDZ.56853
Webroot W32.Bot.Gen
Avira TR/IRCbot.agbs
MAX malware (ai score=88)
Antiy-AVL Trojan/MSIL.Agent
Xcitium Worm.MSIL.IRCBot.u@53shnj
Arcabit Trojan.Generic.DDE15
ZoneAlarm HEUR:Trojan.Win32.Generic
Microsoft Backdoor:MSIL/Sisbot.A
Google Detected
AhnLab-V3 Trojan/Win32.Siscos.R29097
McAfee BackDoor-FBRX!282CAB618438
VBA32 Backdoor.MSIL.XWorm.gen
Cylance unsafe
Panda Generic Malware
TrendMicro-HouseCall BKDR_SISBOT.SMILA
Rising Backdoor.Sisbot!1.A305 (CLASSIC)
Ikarus Trojan-Dropper.MSIL
MaxSecure Trojan.Malware.300983.susgen
Fortinet MSIL/IRCBot.SDD!tr
BitDefenderTheta AI:Packer.F12C1F9E1F
AVG Win32:GenMalicious-HFG [Trj]
Cybereason malicious.184384
DeepInstinct MALICIOUS

How to remove Backdoor:MSIL/Sisbot.A?

  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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