Categories: Malware

Win32:VB-YOK [Trj] removal tips

The Win32:VB-YOK [Trj] 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:VB-YOK [Trj] virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Sample contains Overlay data
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • Authenticode signature is invalid
  • Behavioural detection: Injection (inter-process)
  • CAPE detected the embedded pe malware family
  • Attempts to modify Explorer settings to prevent hidden files from being displayed
  • Yara detections observed in process dumps, payloads or dropped files

How to determine Win32:VB-YOK [Trj]?


File Info:

name: 8E9C8019E6832BEA1749.mlwpath: /opt/CAPEv2/storage/binaries/2f24ebf965992f9417e71bc5a6f2ae02f16051b6330746b98f0e41ff1185fedccrc32: AB80CB2Bmd5: 8e9c8019e6832bea17497bb12dfc39b3sha1: 2069ff7235df87268d80d55682be26b74e745153sha256: 2f24ebf965992f9417e71bc5a6f2ae02f16051b6330746b98f0e41ff1185fedcsha512: b1dd19b566fc18c3110a6b84cf732828b343270a9bd17b011f2cc2f4a5e147df79855195f8ecc1087d475b1c3f3a54fb7b6eb75196e709d95456a2276f736142ssdeep: 3072:IGzsrB9oe5g+GwJs8K9YUoIrJaRuSZ/JlQPj/PYv2wM0B2vmkHgHAGFAhD4oQZim:IGwrGP9YErMRuSZ/JlQLHYv2PvzGAMAAtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1F2F3831636C0F23EC815CAF43D6E4790A47AAD3625D29813F6C26F26B6B1DA7D230717sha3_384: 634672d40ec624dcd7ceac32acf15cbb5310a7c7601c24631c6ef4144c8df7672f3e2ad0229a7dbf40d63988347d34f9ep_bytes: 6810404000e8f0ffffff000000000000timestamp: 1970-01-01 00:00:00

Version Info:

Translation: 0x0409 0x04b0ProductName: PMqJuSjscoPFileVersion: 1.00ProductVersion: 1.00InternalName: gdcuuOefQyHvSqOriginalFilename: gdcuuOefQyHvSq.exe

Win32:VB-YOK [Trj] also known as:

Bkav W32.AIDetectMalware
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.VBKrypt.23
ClamAV Win.Trojan.VB-1491
FireEye Generic.mg.8e9c8019e6832bea
CAT-QuickHeal Trojan.Vobfus.gen
Skyhigh BehavesLike.Win32.VBObfus.cm
McAfee VBObfus.bc
Malwarebytes Generic.Malware.AI.DDS
VIPRE Gen:Variant.VBKrypt.23
Sangfor Suspicious.Win32.Save.vb
K7AntiVirus EmailWorm ( 0054d10f1 )
K7GW EmailWorm ( 0054d10f1 )
CrowdStrike win/malicious_confidence_100% (D)
Arcabit Trojan.VBKrypt.23
Baidu Win32.Trojan.Inject.n
VirIT Worm.Win32.Generic.AZUA
Symantec W32.Changeup!gen15
tehtris Generic.Malware
ESET-NOD32 Win32/AutoRun.VB.AMD
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky Worm.Win32.Vobfus.efex
BitDefender Gen:Variant.VBKrypt.23
NANO-Antivirus Trojan.Win32.Diple.covkye
SUPERAntiSpyware Trojan.Agent/Gen-Vobfus
Avast Win32:VB-YOK [Trj]
Tencent Trojan.Win32.Koobface.p
Emsisoft Gen:Variant.VBKrypt.23 (B)
F-Secure Trojan.TR/Spy.Agent.163847
DrWeb Trojan.VbCrypt.60
TrendMicro WORM_VOBFUS.SMAC
Trapmine malicious.high.ml.score
Sophos Mal/SillyFDC-T
SentinelOne Static AI – Malicious PE
Google Detected
Avira TR/Spy.Agent.163847
Antiy-AVL Worm/Win32.WBNA.gen
Kingsoft malware.kb.a.1000
Xcitium TrojWare.Win32.VB.AVA@4paxk7
Microsoft Worm:Win32/Vobfus!pz
ZoneAlarm Worm.Win32.Vobfus.efex
GData Gen:Variant.VBKrypt.23
Varist W32/Vobfus.Z.gen!Eldorado
AhnLab-V3 Trojan/Win32.Diple.R13793
Acronis suspicious
BitDefenderTheta AI:Packer.9DAD55EE20
ALYac Gen:Variant.VBKrypt.23
MAX malware (ai score=80)
VBA32 BScope.Trojan.VB.Diple.01583
Cylance unsafe
Panda Trj/Genetic.gen
TrendMicro-HouseCall WORM_VOBFUS.SMAC
Rising Worm.Vobfus!1.99C7 (CLASSIC)
Yandex Trojan.GenAsa!3+0rkNP74OI
Ikarus Worm.Win32.WBNA
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/VB.CNE!worm
AVG Win32:VB-YOK [Trj]
DeepInstinct MALICIOUS

How to remove Win32:VB-YOK [Trj]?

  • 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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