Categories: Malware

How to remove “Win32/Filecoder.OKO”?

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

SetUnhandledExceptionFilter detected (possible anti-debug)
Dynamic (imported) function loading detected
Anomalous file deletion behavior detected (10+)
Reads data out of its own binary image
The binary contains an unknown PE section name indicative of packing
Authenticode signature is invalid
Exhibits possible ransomware file modification behavior
Checks for the presence of known devices from debuggers and forensic tools
Checks for the presence of known devices from debuggers and forensic tools
Clears Windows events or logs
Harvests cookies for information gathering

How to determine Win32/Filecoder.OKO?


File Info:
name: 81063E103630A017F9E2.mlwpath: /opt/CAPEv2/storage/binaries/c1808d1d60b78b2b6e9b60b60c8f49320d621013c0e621b316201af2ae372303crc32: DAE8D261md5: 81063e103630a017f9e20aad90dfea15sha1: 12d3e83c7db6eb8d75214508ab15804b1814274asha256: c1808d1d60b78b2b6e9b60b60c8f49320d621013c0e621b316201af2ae372303sha512: 881c5958670e953c86ce0ac8d63368a5826aafd65296b1aa7daae9128594632fe7e75ff925f10557b3f3a398826b59bb96b2e27721cbc976a18f59b85eeb412dssdeep: 6144:U/s86W766rQ66548kUmsRsvwhCQcV4lChjX70tfqTi8wzv5MaImSjIxgOGz24hYa:RsPAVYRQTBA+0h/type: PE32 executable (console) Intel 80386, for MS Windowstlsh: T1B3645B20B353F672D46148F84E6DAA66B91DAC081B249BFBB3DC3669ED351C04A31FD4sha3_384: ae9ec16c33b5e1aa60cb96565f7c2a5ac33525180bd308f58ac3a64dbfefe78c19fea60886068578a03c0742dcd337f2ep_bytes: e8a8050000e974feffff558bec6a00fftimestamp: 2022-04-28 11:13:42
Version Info:
0: [No Data]

Win32/Filecoder.OKO also known as:

Bkav	W32.AIDetect.malware2
MicroWorld-eScan	Gen:Variant.Ransom.District.2
FireEye	Gen:Variant.Ransom.District.2
ALYac	Gen:Variant.Ransom.District.2
Cylance	Unsafe
Zillya	Trojan.Filecoder.Win32.23222
Cybereason	malicious.03630a
Cyren	W32/Ransom.QN.gen!Eldorado
Symantec	ML.Attribute.HighConfidence
Elastic	malicious (high confidence)
ESET-NOD32	a variant of Win32/Filecoder.OKO
APEX	Malicious
Avast	Win32:TrojanX-gen [Trj]
BitDefender	Gen:Variant.Ransom.District.2
NANO-Antivirus	Trojan.Win32.SchoolGirl.jpadgk
Rising	Ransom.Agent!8.6B7 (RDMK:cmRtazoF6K3//atXMYg)
Ad-Aware	Gen:Variant.Ransom.District.2
TACHYON	Trojan/W32.SchoolGirl.311296
DrWeb	Trojan.Encoder.35158
VIPRE	Gen:Variant.Ransom.District.2
McAfee-GW-Edition	BehavesLike.Win32.NetLoader.fh
Trapmine	suspicious.low.ml.score
Emsisoft	Gen:Variant.Ransom.District.2 (B)
Jiangmin	Trojan.SchoolGirl.nq
Avira	HEUR/AGEN.1213039
Antiy-AVL	Trojan/Generic.ASMalwS.4A07
GData	Gen:Variant.Ransom.District.2
Cynet	Malicious (score: 100)
AhnLab-V3	Malware/Win.Generic.C5137809
McAfee	GenericRXSI-UI!81063E103630
MAX	malware (ai score=83)
VBA32	BScope.Trojan.SchoolGirl
Malwarebytes	Malware.AI.1812541523
Tencent	Malware.Win32.Gencirc.10d044f4
MaxSecure	Trojan.Malware.73882111.susgen
Fortinet	W32/Filecoder.OKO!tr.ransom
BitDefenderTheta	Gen:NN.ZexaF.34806.tuW@aqJlftm
AVG	Win32:TrojanX-gen [Trj]
Panda	Trj/GdSda.A
CrowdStrike	win/malicious_confidence_90% (W)