Categories: Backdoor

What is “Backdoor:Win32/Simda”?

The Backdoor:Win32/Simda 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:Win32/Simda virus can do?

  • Unconventionial language used in binary resources: Russian
  • The binary likely contains encrypted or compressed data.
  • Anomalous binary characteristics

How to determine Backdoor:Win32/Simda?


File Info:

crc32: 8BC8DAF1md5: 3257a1ffef87f9eb12e89ef8fd55fadfname: 3257A1FFEF87F9EB12E89EF8FD55FADF.mlwsha1: 48962f481ed9b27616a1d645ab9864ace98162e3sha256: 9d98acc268709013dd7f463a173ce91bfb286f37c9f92687d0b8040bb0638a2csha512: 8ab5da30df9da2a20a7b9a9411210e1d394898be07e83714fb22159f410bed7a35f2570274de199f3d3d29408b3e555e4281c9fd43f329aebc4021d08bac2ff6ssdeep: 12288:afFf7mVBixFVv/a1st4rBdTMvEpLX4DiIdC1K+oINh7je5ExgT/:8Ff7jxHaFrXMiJ1WahveDtype: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows

Version Info:

0: [No Data]

Backdoor:Win32/Simda also known as:

Bkav W32.AIDetect.malware1
K7AntiVirus Backdoor ( 0040f57c1 )
Elastic malicious (high confidence)
DrWeb Trojan.Rodricter.21
Cynet Malicious (score: 100)
ALYac Gen:Variant.Razy.85541
Cylance Unsafe
Zillya Trojan.Simda.Win32.289
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Backdoor:Win32/Simda.2b0ae468
K7GW Backdoor ( 0040f57c1 )
Cybereason malicious.fef87f
Cyren W32/Simda.AD.gen!Eldorado
Symantec Trojan.FakeAV!gen95
ESET-NOD32 Win32/Simda.B
APEX Malicious
Avast Win32:Simda-IS [Trj]
ClamAV Win.Trojan.Simda-632
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Razy.85541
NANO-Antivirus Trojan.Win32.Rodricter.cqxxuz
ViRobot Backdoor.Win32.A.Simda.756224.A
MicroWorld-eScan Gen:Variant.Razy.85541
Tencent Win32.Trojan.Generic.Lhnb
Ad-Aware Gen:Variant.Razy.85541
Sophos ML/PE-A + Mal/Simda-G
Comodo Backdoor.Win32.Simda.PFL@4t3hi7
BitDefenderTheta Gen:NN.ZexaF.34628.UyW@a0cuCmoc
VIPRE Backdoor.Win32.Simda.b (v)
TrendMicro TROJ_SPNR.11AE13
McAfee-GW-Edition BehavesLike.Win32.Trojan.bc
FireEye Generic.mg.3257a1ffef87f9eb
Emsisoft Gen:Variant.Razy.85541 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Backdoor/Simda.lf
Webroot W32.Rogue.Gen
Avira TR/Crypt.XPACK.Gen
eGambit Unsafe.AI_Score_83%
Kingsoft Win32.Heur.KVMH004.a.(kcloud)
Microsoft Backdoor:Win32/Simda
AegisLab Trojan.Win32.Simda.lKKi
GData Gen:Variant.Razy.85541
AhnLab-V3 Backdoor/Win32.Simda.R49261
McAfee Trojan-FARW!3257A1FFEF87
MAX malware (ai score=100)
VBA32 BScope.Trojan.Rodricter
Panda Trj/Ransom.AB
TrendMicro-HouseCall TROJ_SPNR.11AE13
Rising Backdoor.Simda!8.2D9 (CLOUD)
Ikarus Backdoor.Win32.Simda
MaxSecure Trojan.Malware.7164915.susgen
AVG Win32:Simda-IS [Trj]
Qihoo-360 HEUR/Malware.QVM20.Gen

How to remove Backdoor:Win32/Simda?

  • 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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