Categories: Backdoor

Should I remove “Backdoor:Win32/Zegost.H!dll”?

The Backdoor:Win32/Zegost.H!dll 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/Zegost.H!dll virus can do?

  • Executable code extraction
  • Detected script timer window indicative of sleep style evasion
  • Reads data out of its own binary image
  • A process created a hidden window
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • A scripting utility was executed
  • Deletes its original binary from disk
  • Network activity detected but not expressed in API logs
  • Creates a copy of itself
  • Created a service that was not started

How to determine Backdoor:Win32/Zegost.H!dll?


File Info:

crc32: 12C5D757md5: f4ae42590b232173679949a96e049c11name: aanquan.exesha1: 381f406e00108e5a49cb60e45a03db1e45e20e55sha256: 75b1c6e231584084b902586dc76fd8102443a71373b73afbd02225f7ebdaeab5sha512: 46ddb36da863b737ee3d994cdaa9099a5c3affd952ba8dff5d290968ac170a5584b5ac3edf791f3504571bde9af8f7f37921b66bdef47cd2d1e51c35998e61ffssdeep: 12288:kkQGKxqfuyYt/whkkaxLG2k65gedsJ5lX:kFOLYt4akaxLGf657dsJ5xtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Backdoor:Win32/Zegost.H!dll also known as:

MicroWorld-eScan Dropped:Trojan.VBS.UNN
Qihoo-360 Win32/Backdoor.0f2
McAfee Artemis!F4AE42590B23
Cylance Unsafe
Sangfor Malware
K7AntiVirus Trojan ( 004b2a0d1 )
Alibaba Backdoor:Win32/Lotok.ddab3106
CrowdStrike win/malicious_confidence_100% (D)
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Injector.BLQC
APEX Malicious
Kaspersky Backdoor.Win32.Lotok.zp
BitDefender Dropped:Trojan.VBS.UNN
Tencent Malware.Win32.Gencirc.10b85f6f
Endgame malicious (high confidence)
Sophos Mal/Generic-S
Zillya Trojan.Lotok.Win32.15
McAfee-GW-Edition Artemis!Trojan
FireEye Generic.mg.f4ae42590b232173
Emsisoft Dropped:Trojan.VBS.UNN (B)
Jiangmin Backdoor.Lotok.br
MAX malware (ai score=84)
Microsoft Backdoor:Win32/Zegost.H!dll
ZoneAlarm Backdoor.Win32.Lotok.zp
AhnLab-V3 Malware/Win32.Generic.C3635038
Acronis suspicious
VBA32 BScope.TrojanDropper.Dapato
Ad-Aware Dropped:Trojan.VBS.UNN
Panda Trj/GdSda.A
Yandex Backdoor.Lotok!
SentinelOne DFI – Malicious PE
eGambit Unsafe.AI_Score_94%
GData Dropped:Trojan.VBS.UNN
AVG Win32:Trojan-gen
Cybereason malicious.90b232
Avast Win32:Trojan-gen
MaxSecure Trojan.Malware.74729512.susgen

How to remove Backdoor:Win32/Zegost.H!dll?

  • 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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