Categories: Backdoor

Backdoor.Win32.Tofsee.vho (file analysis)

The Backdoor.Win32.Tofsee.vho 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 Backdoor.Win32.Tofsee.vho virus can do?

  • Executable code extraction
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic
  • Performs some HTTP requests
  • Unconventionial language used in binary resources: Portuguese (Brazilian)
  • The binary likely contains encrypted or compressed data.
  • Attempts to modify proxy settings
  • Collects information to fingerprint the system

Related domains:

nokiahuyviyphone.com

How to determine Backdoor.Win32.Tofsee.vho?


File Info:

crc32: A9724C4Emd5: 34aab5f99856104bc0a9cfea301c823dname: gucci.exesha1: 0a765ecfac30eb4153076d9e38004bfc840fe365sha256: 16ee49f5c4239a190021a9f1236e47e47c9e7e241d8859ade1facc05327038desha512: 35b79a6c19bc528e0213d0a5cbdbf0ab128eecb09dfbfa1fbf737ff429d0c3d9c47061eeb59acf168d5011b24694038551bcaed8e44f69022f9fbe3b88683f7bssdeep: 6144:LP5BYw9ZMUcdgPCnKWYZ7+7D1zEfYizs:7wEEgaKWYZ7+7Duf3type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0115 0x04e5

Backdoor.Win32.Tofsee.vho also known as:

FireEye Generic.mg.34aab5f99856104b
Qihoo-360 HEUR/QVM10.1.5215.Malware.Gen
Malwarebytes Trojan.MalPack.GS
Sangfor Malware
Cybereason malicious.fac30e
Symantec ML.Attribute.HighConfidence
APEX Malicious
Kaspersky HEUR:Backdoor.Win32.Tofsee.vho
Rising Trojan.Generic@ML.90 (RDML:+B4kjfyJqfVGnl9dRL1DKw)
Invincea heuristic
Trapmine suspicious.low.ml.score
SentinelOne DFI – Malicious PE
Endgame malicious (high confidence)
ZoneAlarm HEUR:Backdoor.Win32.Tofsee.vho
Microsoft Trojan:Win32/Wacatac.B!ml
Acronis suspicious
VBA32 BScope.Trojan.Fuerboos
Cylance Unsafe
eGambit Unsafe.AI_Score_98%
CrowdStrike win/malicious_confidence_100% (D)

How to remove Backdoor.Win32.Tofsee.vho?

  • 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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