Win32/Filecoder.NSF (file analysis)

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

The binary contains an unknown PE section name indicative of packing
Executable file is packed/obfuscated with ASPack
Authenticode signature is invalid
CAPE detected the MedusaLocker malware family

How to determine Win32/Filecoder.NSF?


File Info:
name: 17EDCD07BDC26D656213.mlw
path: /opt/CAPEv2/storage/binaries/05578f7423b0d085dda02f6131b394b9d9b49b1da02e6c8fdc74358405a77ae5
crc32: 8DAC3F3D
md5: 17edcd07bdc26d6562137c518f6fde14
sha1: 41cc0a973883bad0305301d571fc7eb2999a29c5
sha256: 05578f7423b0d085dda02f6131b394b9d9b49b1da02e6c8fdc74358405a77ae5
sha512: ebc7a51d9327d52b5b0bd196c1323e1170abcc8072b17a9b11816ebea92af84d7982a9172534c346b69f1071317f992390849ac7cd1322941268c650c1119580
ssdeep: 12288:+uTDGc6yBGGLg9PNrh05IT7/GR+B+OeO+OeNhBBhhBBA0jF6B9v2zp47CUSqpQsE:+uTSc6yEGU9PNrhwIT7jkFdG7lSAtH
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1E7C47C10F362F271D46398F44A7DAA66A42C7D340B2456FBB3D82E295A315D08B31FB7
sha3_384: daec9f7bb9c8015c313824a3e69cf860e50f7469e6caa12bfe07028360b8c4ae62874ce056421ef552051f277daec582
ep_bytes: e8c0040000e97afeffffcccccccccccc
timestamp: 2022-06-20 13:56:44

Version Info:
0: [No Data]

Win32/Filecoder.NSF also known as:

Bkav	W32.AIDetect.malware1
MicroWorld-eScan	Gen:Heur.Ransom.REntS.Gen.1
FireEye	Generic.mg.17edcd07bdc26d65
ALYac	Gen:Heur.Ransom.REntS.Gen.1
Cylance	Unsafe
VIPRE	Gen:Heur.Ransom.REntS.Gen.1
Sangfor	[ASPACK V2.12]
Cybereason	malicious.7bdc26
Symantec	ML.Attribute.HighConfidence
Elastic	Windows.Ransomware.Magniber
ESET-NOD32	a variant of Win32/Filecoder.NSF
APEX	Malicious
Kaspersky	HEUR:Trojan-Ransom.Win32.Generic
BitDefender	Gen:Heur.Ransom.REntS.Gen.1
Avast	Win32:Evo-gen [Susp]
Ad-Aware	Gen:Heur.Ransom.REntS.Gen.1
Emsisoft	Gen:Heur.Ransom.REntS.Gen.1 (B)
F-Secure	Trojan.TR/Crypt.ASPM.Gen
DrWeb	Trojan.Encoder.34948
Trapmine	malicious.high.ml.score
Sophos	Generic ML PUA (PUA)
SentinelOne	Static AI – Malicious PE
GData	Win32.Trojan-Ransom.Filecoder.BO
Avira	TR/Crypt.ASPM.Gen
Arcabit	Trojan.Ransom.REntS.Gen.1
ZoneAlarm	HEUR:Trojan-Ransom.Win32.Generic
Microsoft	Ransom:Win32/MedusaLocker.A!MTB
Cynet	Malicious (score: 100)
Acronis	suspicious
MAX	malware (ai score=82)
VBA32	BScope.Trojan.Garvi
Malwarebytes	Malware.AI.1291672231
Rising	Ransom.Curator!1.D838 (CLASSIC)
MaxSecure	Trojan.Malware.300983.susgen
BitDefenderTheta	Gen:NN.ZexaF.34742.HyW@a4poic
AVG	Win32:Evo-gen [Susp]
CrowdStrike	win/malicious_confidence_100% (W)

How to remove Win32/Filecoder.NSF?

Win32/Filecoder.NSF removal tool

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.

About the author

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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