Categories: Trojan

What is “VHO:Trojan.Win32.Zenpak”?

The VHO:Trojan.Win32.Zenpak 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 VHO:Trojan.Win32.Zenpak virus can do?

  • Executable code extraction
  • Compression (or decompression)
  • Attempts to connect to a dead IP:Port (1 unique times)
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • A process attempted to delay the analysis task.
  • At least one IP Address, Domain, or File Name was found in a crypto call
  • Starts servers listening on 127.0.0.1:13689, 127.0.0.1:13690
  • A process created a hidden window
  • Drops a binary and executes it
  • Unconventionial language used in binary resources: Latvian
  • The binary likely contains encrypted or compressed data.
  • A scripting utility was executed
  • Steals private information from local Internet browsers
  • Attempts to execute a powershell command with suspicious parameter/s
  • Collects information about installed applications
  • Creates a hidden or system file
  • Checks the CPU name from registry, possibly for anti-virtualization
  • Attempts to modify proxy settings
  • Creates a copy of itself
  • Harvests credentials from local FTP client softwares
  • Harvests information related to installed instant messenger clients
  • Harvests information related to installed mail clients
  • Attempts to create or modify system certificates
  • Collects information to fingerprint the system
  • Anomalous binary characteristics

How to determine VHO:Trojan.Win32.Zenpak?


File Info:

crc32: 36568B6Cmd5: e4943cdcc5f3b5d99680501e1715729dname: E4943CDCC5F3B5D99680501E1715729D.mlwsha1: 2174a5a73e7ff6f23af582ca016f0fcc52a6728esha256: 706f69fea6cf70f9aca21f5f7eadeed5ed58880b81eb636d99a8a37e61e5abedsha512: 66b01baa88ecf1c64c3938e1802e7faf19127889d9083d9ac0ed35b6fc1b926b07833c1a34c111015e093277c6a50fce3373a3836ce86b3ab01e70bc86c443cdssdeep: 24576:oIBL72CM1936k5AwzexDuNOEJvsHcBBAywbvTXJEMF:lm6k5iBTlHcbSWMtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translations: 0x48b6 0x0359

VHO:Trojan.Win32.Zenpak also known as:

Bkav W32.AIDetect.malware1
K7AntiVirus Riskware ( 0040eff71 )
Elastic malicious (high confidence)
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (D)
K7GW Riskware ( 0040eff71 )
Cyren W32/Kryptik.EJB.gen!Eldorado
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky VHO:Trojan.Win32.Zenpak.gen
Sophos ML/PE-A + Troj/Kryptik-TR
BitDefenderTheta Gen:NN.ZexaF.34758.fz0@ayZ3JmhI
McAfee-GW-Edition BehavesLike.Win32.Generic.tc
FireEye Generic.mg.e4943cdcc5f3b5d9
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.PSW.Racealer.cln
eGambit Unsafe.AI_Score_99%
Microsoft Trojan:Win32/Caynamer.A!ml
Acronis suspicious
VBA32 BScope.Trojan.Crypt
Rising Trojan.Kryptik!1.D75E (CLASSIC)
MaxSecure Trojan.Malware.300983.susgen

How to remove VHO:Trojan.Win32.Zenpak?

  • 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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