Categories: Malware

How to remove “Win32/Filecoder.FS”?

The Win32/Filecoder.FS 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 Win32/Filecoder.FS virus can do?

  • Possible date expiration check, exits too soon after checking local time
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • Drops a binary and executes it
  • Executed a very long command line or script command which may be indicative of chained commands or obfuscation
  • A scripting utility was executed
  • Uses Windows utilities for basic functionality
  • Attempts to modify proxy settings
  • Creates a copy of itself
  • Anomalous binary characteristics

How to determine Win32/Filecoder.FS?


File Info:

crc32: E9F9EC17md5: b251687d3cdd28055c3dd85654f87171name: B251687D3CDD28055C3DD85654F87171.mlwsha1: 008cf51a143d3811ec98528cc59c6839a2eea002sha256: 29af4eb16b3a921085bc7436fb1e831924b49558331b88ba46fc2d9e8d97a22fsha512: 0c61c21e84c754f10f65dcd869a7dcb5bd29412c1972aa3f4dcc6a06650c08df9248d18918988ce2b4c061cb73437e7d316a1905a5c3b9c10e6c3c8f6016d116ssdeep: 3072:yAzXdojpB1Q0dK+1zS4OWI4HXd7I4sBAZrzVPFGXF:yAzatB1Qn+JlOWI4HKuZntype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Filecoder.FS also known as:

Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 004f700b1 )
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
ALYac Gen:Heur.Ransom.REntS.Gen.1
Cylance Unsafe
Zillya Trojan.Filecoder.Win32.5831
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_70% (D)
K7GW Trojan ( 004f700b1 )
Cybereason malicious.d3cdd2
Symantec Ransom.Gen!gm
ESET-NOD32 a variant of Win32/Filecoder.FS
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Ransomware.Scarab-6336012-1
Kaspersky HEUR:Trojan-Ransom.Win32.Purga.gen
BitDefender Gen:Heur.Ransom.REntS.Gen.1
MicroWorld-eScan Gen:Heur.Ransom.REntS.Gen.1
Tencent Win32.Trojan.Filecoder.Pdbt
Ad-Aware Gen:Heur.Ransom.REntS.Gen.1
Sophos Mal/Generic-S
Comodo TrojWare.Win32.TrojanDownloader.Delf.gen@1xqow5
BitDefenderTheta AI:Packer.B4E1CC7018
VIPRE Trojan.Win32.Generic!BT
TrendMicro Mal_Purge
McAfee-GW-Edition BehavesLike.Win32.Generic.ch
FireEye Generic.mg.b251687d3cdd2805
Emsisoft Trojan-Ransom.Scarab (A)
SentinelOne Static AI – Malicious PE
Avira TR/Dldr.Delphi.Gen
eGambit Unsafe.AI_Score_99%
Microsoft Ransom:Win32/Higuniel.A
Arcabit Trojan.Ransom.REntS.Gen.1
ZoneAlarm HEUR:Trojan-Ransom.Win32.Generic
GData Gen:Heur.Ransom.REntS.Gen.1
AhnLab-V3 Malware/Win32.Generic.C2005516
Acronis suspicious
McAfee Generic.ayb
MAX malware (ai score=83)
VBA32 BScope.Trojan.Encoder
Panda Trj/GdSda.A
TrendMicro-HouseCall Mal_Purge
Rising Trojan.Filecoder!8.68 (CLOUD)
Ikarus Trojan.SuspectCRC
Fortinet W32/Msht.GJ!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Generic.HgIASOYA

How to remove Win32/Filecoder.FS?

  • 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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