Categories: Trojan

Should I remove “Trojan:Win32/Zegost.CN!bit”?

The Trojan:Win32/Zegost.CN!bit 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 Trojan:Win32/Zegost.CN!bit virus can do?

  • Executable code extraction
  • At least one process apparently crashed during execution
  • Attempts to connect to a dead IP:Port (4 unique times)
  • Creates RWX memory
  • Drops a binary and executes it
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic
  • Performs some HTTP requests
  • Unconventionial binary language: Chinese (Simplified)
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • Deletes its original binary from disk
  • A process attempted to delay the analysis task by a long amount of time.
  • Network activity contains more than one unique useragent.
  • Installs itself for autorun at Windows startup
  • Checks the system manufacturer, likely for anti-virtualization
  • Attempts to modify proxy settings
  • Creates a copy of itself

Related domains:

z.whorecord.xyz
5g.xbt.cn
a.tomx.xyz
users.qzone.qq.com
ocsp.dcocsp.cn
crl.digicert-cn.com
crl3.digicert.com
crl4.digicert.com
i.qq.com

How to determine Trojan:Win32/Zegost.CN!bit?


File Info:

crc32: F9659640md5: 80ec37f324363d31615576ece9b00e22name: svchost.exesha1: c357b16ceb711b82edd7c1b55e744f55709300bbsha256: d9aab984aa4a10eb2580117cfc5d25bf2b7125e8d4e18bcb8ec6c8fb13654490sha512: 00b5114d5fa78eaa4b174da41182f81d34ce86de72fbadc9324b6ab39c7a2f60150d792494e4b5d3c7a38a070be431253c67883b7a12a324465dfeaa4e122a35ssdeep: 6144:dhH/T7gxqsJYAGWRN17a8cMqnPfbAnbW82HqlamtgbQd8WpVH5/:P7mYAhRFcMmubW8b8mubS7/type: MS-DOS executable, MZ for MS-DOS

Version Info:

LegalCopyright: Copyright (C) 2011InternalName: GameLauncher.exeFileVersion: 2016,05,30,1CompanyName: x676dx5ddex987ax7f51x79d1x6280x80a1x4efdx6709x9650x516cx53f8ProductName: x6e38x620fx542fx52a8x9875ProductVersion: 1.0.0.8FileDescription: x6e38x620fx542fx52a8x9875OriginalFilename: GameLauncher.exeTranslation: 0x0804 0x03a8

Trojan:Win32/Zegost.CN!bit also known as:

MicroWorld-eScan Trojan.Cud.Gen.1
FireEye Generic.mg.80ec37f324363d31
McAfee Trojan-FQHU!80EC37F32436
Cylance Unsafe
K7AntiVirus Trojan-Downloader ( 0053a09e1 )
BitDefender Trojan.Cud.Gen.1
K7GW Trojan-Downloader ( 0053a09e1 )
Cybereason malicious.324363
Invincea heuristic
F-Prot W32/Agent.NBNR
Symantec ML.Attribute.HighConfidence
APEX Malicious
Paloalto generic.ml
GData Trojan.Cud.Gen.1
Kaspersky HEUR:Worm.Win32.Generic
Alibaba Worm:Win32/Zegost.f6665a43
NANO-Antivirus Trojan.Win32.Agent.eljrwm
Tencent Malware.Win32.Gencirc.10b44cc7
Ad-Aware Trojan.Cud.Gen.1
Emsisoft Trojan.Cud.Gen.1 (B)
Comodo TrojWare.Win32.TrojanDownloader.Cacrk.A@6hsf5a
F-Secure Heuristic.HEUR/AGEN.1116253
TrendMicro BKDR_ZEGOST.SM33
Trapmine malicious.high.ml.score
Sophos Mal/Generic-S
Ikarus Trojan.Agent4
Cyren W32/Agent.KBSX-2489
Jiangmin Worm.Generic.ajtp
Webroot W32.Trojan.Cud.Gen
Avira HEUR/AGEN.1116253
MAX malware (ai score=83)
Antiy-AVL Worm/Win32.AGeneric
Endgame malicious (high confidence)
Arcabit Trojan.Cud.Gen.1
ZoneAlarm HEUR:Worm.Win32.Generic
Microsoft Trojan:Win32/Zegost.CN!bit
Cynet Malicious (score: 85)
BitDefenderTheta Gen:NN.ZexaF.34132.Iq0@aKSVrigj
VBA32 BScope.TrojanDownloader.Farfli
Malwarebytes Backdoor.Zegost
Panda Trj/CI.A
Zoner Trojan.Win32.82486
ESET-NOD32 Win32/TrojanDownloader.Agent.DDW
TrendMicro-HouseCall BKDR_ZEGOST.SM33
Rising Backdoor.BigWolf!1.BBD2 (CLOUD)
Yandex Trojan.DL.Agent!AMQJtKHN6HY
SentinelOne DFI – Suspicious PE
Fortinet W32/Agent.CGT!tr
AVG Win32:Malware-gen
Avast Win32:Malware-gen
CrowdStrike win/malicious_confidence_70% (W)
Qihoo-360 Generic/HEUR/QVM41.2.CE11.Malware.Gen

How to remove Trojan:Win32/Zegost.CN!bit?

  • 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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