Categories: Trojan

Trojan:Win32/Occamy.C31 removal guide

The Trojan:Win32/Occamy.C31 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 Trojan:Win32/Occamy.C31 virus can do?

  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Installs itself for autorun at Windows startup
  • Stores JavaScript or a script command in the registry, likely for persistence or configuration
  • Writes a potential ransom message to disk
  • Creates a hidden or system file
  • Network activity detected but not expressed in API logs
  • Creates a copy of itself
  • Attempts to disable UAC
  • Attempts to modify UAC prompt behavior

How to determine Trojan:Win32/Occamy.C31?


File Info:

crc32: 6C28115Cmd5: 894ec0a2a490d1f602fc39ad7be27ddbname: 894EC0A2A490D1F602FC39AD7BE27DDB.mlwsha1: 1ed56fd7153b6918ad7528883e011892ff4c0bb5sha256: 318299fe30d9d4f4e2047ffa9909d27260642c619a0d0c3ac74da1218f8624fesha512: a787bdacf5de4e8a4375e774d1ca82c785b0aedd3eb1d7fbfa9820a07abb5261d9f46fefa0e040b530669393a6f69f0f6ce181914869faa5aa73fc42d9bba2d7ssdeep: 192:5z8C34Q8YvBRfvyCRaAp7xdenWb/LQW984FWyXynMhf7sW/lLLD0ZNklMLcDqh:t5FBRnyDIQW9rJf7sW/9kvQgtype: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows, UPX compressed

Version Info:

0: [No Data]

Trojan:Win32/Occamy.C31 also known as:

Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0051918e1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.31437
Cynet Malicious (score: 100)
ALYac Generic.Malware.SBg.B2F84CFD
Cylance Unsafe
Zillya Trojan.Filecoder.Win32.13522
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/generic.ali2000010
K7GW Trojan ( 0051918e1 )
Cybereason malicious.2a490d
ESET-NOD32 a variant of Win32/Filecoder.NXV
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Script.Alien.gen
BitDefender Generic.Malware.SBg.B2F84CFD
NANO-Antivirus Trojan.Win32.Encoder.ibehyn
MicroWorld-eScan Generic.Malware.SBg.B2F84CFD
Tencent Win32.Trojan.Filecoder.Eanm
Ad-Aware Generic.Malware.SBg.B2F84CFD
Comodo Malware@#3dre3gchb3p17
BitDefenderTheta AI:Packer.1AB3501D1E
McAfee-GW-Edition BehavesLike.Win32.Generic.lc
FireEye Generic.mg.894ec0a2a490d1f6
Emsisoft Generic.Malware.SBg.B2F84CFD (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Generic.eqhqy
Avira TR/ATRAPS.Gen
Microsoft Trojan:Win32/Occamy.C31
Arcabit Generic.Malware.SBg.B2F84CFD
AegisLab Trojan.Win32.Generic.4!c
GData Generic.Malware.SBg.B2F84CFD
AhnLab-V3 Malware/Win32.Generic.C3648441
McAfee Artemis!894EC0A2A490
MAX malware (ai score=89)
VBA32 BScope.Trojan.AntiAV
Malwarebytes Ransom.MrDec
Ikarus Trojan-Ransom.FileCrypter
MaxSecure Trojan.Malware.7164915.susgen
Fortinet W32/Filecoder.DE6F!tr.ransom
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove Trojan:Win32/Occamy.C31?

  • 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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