Categories: Worm

What is “Worm:Win32/Vobfus.WC”?

The Worm:Win32/Vobfus.WC 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 Worm:Win32/Vobfus.WC virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • The binary likely contains encrypted or compressed data.
  • Creates an autorun.inf file
  • Authenticode signature is invalid
  • Behavioural detection: Injection (Process Hollowing)
  • Behavioural detection: Injection (inter-process)
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization
  • Creates a copy of itself
  • Attempts to disable Windows Auto Updates
  • Anomalous binary characteristics
  • Attempts to modify Explorer settings to prevent hidden files from being displayed
  • Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine Worm:Win32/Vobfus.WC?


File Info:

name: 3258CCDEE477E864A054.mlwpath: /opt/CAPEv2/storage/binaries/2e81c82d4043a34272b5df23b13ce1da55be1067be26290357e7cfb4e969a609crc32: 5B750395md5: 3258ccdee477e864a0543f937b838c60sha1: 29d71bb5d7fff83db276839de28464e0122dced2sha256: 2e81c82d4043a34272b5df23b13ce1da55be1067be26290357e7cfb4e969a609sha512: 1688453828ff8709d8cd111efd58380d3a027862d13dcbcabbecf1c020aae6aec9020d46636b5f0fe96cb378ae27110958885265c2ba4c9c0737b7ce168f38b9ssdeep: 1536:kibonlFhHijosobmMZQWIej+2x6HYkiIiPcZ6toLPNyk3splWMNrtw9:Rysj0xQWIu+2x6HYkiIQtwPF3KW9type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T183B36C65B9430892E044467466CB82D51B7EBC0F7A87265F87422E3F25E5F2C0DA4EB7sha3_384: 3064c89e149d355ecc4e6742aa22f7087e28019f3ca62caa9a8b03402c0438cc66fd3b20a1c4a074f50aa3b3ed52c3e3ep_bytes: 687c114000e8f0ffffff000000000000timestamp: 2013-09-26 04:29:40

Version Info:

aranslation: 0x0409 0x04b0CompanyName: mvneLegalCopyright: inbcyjqProductName: emgapyFileVersion: 1.70ProductVersion: 1.70InternalName: ewbnxgmOriginalFilename: ewbnxgm.exe

Worm:Win32/Vobfus.WC also known as:

Lionic Trojan.Win32.Generic.4!c
tehtris Generic.Malware
DrWeb Trojan.DownLoader10.17922
MicroWorld-eScan Gen:Variant.Symmi.23867
FireEye Generic.mg.3258ccdee477e864
CAT-QuickHeal Trojan.Beebone.D
McAfee VBObfus.f
Malwarebytes Malware.AI.1099621118
Zillya Trojan.Injector.Win32.318486
Sangfor Suspicious.Win32.Save.vb
K7AntiVirus Trojan ( 0040f7131 )
Alibaba Worm:Win32/Vobfus.2a18ec37
K7GW Trojan ( 0040f7131 )
Cybereason malicious.5d7fff
BitDefenderTheta AI:Packer.B79CAF7F20
Cyren W32/Vobfus.NX.gen!Eldorado
Symantec W32.Changeup!gen44
ESET-NOD32 a variant of Win32/Injector.ARYG
APEX Malicious
Kaspersky UDS:DangerousObject.Multi.Generic
BitDefender Gen:Variant.Symmi.23867
NANO-Antivirus Trojan.Win32.Bifrost.dxoouf
Avast Win32:VB-AICW [Trj]
Tencent Win32.Trojan.Dropper.Vwhl
Emsisoft Gen:Variant.Symmi.23867 (B)
F-Secure Trojan.TR/Dropper.Gen7
VIPRE Gen:Variant.Symmi.23867
McAfee-GW-Edition BehavesLike.Win32.VBObfus.ch
Trapmine malicious.high.ml.score
Sophos Mal/SillyFDC-AH
SentinelOne Static AI – Malicious PE
GData Gen:Variant.Symmi.23867
Jiangmin Trojan/Vobfus.rzn
Webroot W32.Vobfus
Google Detected
Avira TR/Dropper.Gen7
MAX malware (ai score=100)
Antiy-AVL Trojan/Win32.Vobfus
Kingsoft malware.kb.a.990
Xcitium TrojWare.Win32.VB.ICOG@54rj7j
Arcabit Trojan.Symmi.D5D3B
ZoneAlarm UDS:DangerousObject.Multi.Generic
Microsoft Worm:Win32/Vobfus.WC
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Vobfus.R90614
VBA32 Trojan.Vobfus
ALYac Gen:Variant.Symmi.23867
TACHYON Trojan/W32.VB-Vobfus.110592.B
Cylance unsafe
Panda Trj/Genetic.gen
Rising Malware.Undefined!8.C (TFE:4:viCGzZM9wLH)
Yandex Trojan.Vobfus!SRltIZzsmto
Ikarus Worm.Win32.Vobfus
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Injector.VOX!tr
AVG Win32:VB-AICW [Trj]
DeepInstinct MALICIOUS
CrowdStrike win/malicious_confidence_100% (W)

How to remove Worm:Win32/Vobfus.WC?

  • 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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Paul Valéry

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