Categories: Trojan

How to remove “Win32/TrojanDownloader.Agent.CYI”?

The Win32/TrojanDownloader.Agent.CYI 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 Win32/TrojanDownloader.Agent.CYI virus can do?

  • Possible date expiration check, exits too soon after checking local time
  • Network activity detected but not expressed in API logs

How to determine Win32/TrojanDownloader.Agent.CYI?


File Info:

crc32: CEB361F1md5: b060ad998d5b1e4e623eb3c78f1bfbbfname: B060AD998D5B1E4E623EB3C78F1BFBBF.mlwsha1: a22b703fe470c0ad3bf17a442d7a7dc2fb033f25sha256: b0fc4d6bcc5e9de316ab8049286fbdbe1507ff53115843caa55616cb1d6c0f1csha512: d52e761a4696baf069917c09c93228e89684032a2830e796b67deb7b5ac7c85d2fc96bbb4cf02a89db6a58575542eb8139f65d6fe9b71402a1a48c9fb2feb9aessdeep: 3072:MFSbheJZRvihVJIqwgVzYtiIVjTXzDUDtwzQCvkhtaEk/kAf:MFSNenFGIqfyi2jTXz76ktype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2000InternalName: GreyEditTestFileVersion: 1, 0, 0, 1CompanyName: LegalTrademarks: ProductName: GreyEditTest ApplicationProductVersion: 1, 0, 0, 1FileDescription: GreyEditTest MFC ApplicationOriginalFilename: GreyEditTest.EXETranslation: 0x0409 0x04b0

Win32/TrojanDownloader.Agent.CYI also known as:

Elastic malicious (high confidence)
DrWeb Trojan.DownLoader.origin
MicroWorld-eScan Trojan.GenericKD.36291018
CAT-QuickHeal Backdoor.Zegost
ALYac Trojan.GenericKD.36291018
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan-Downloader ( 004c808c1 )
BitDefender Trojan.GenericKD.36291018
K7GW Trojan-Downloader ( 004c808c1 )
Cybereason malicious.fe470c
BitDefenderTheta Gen:NN.ZexaE.34804.nq0@ayWBRPni
Cyren W32/Trojan.OOWY-3994
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Farfli-CN [Drp]
ClamAV Win.Trojan.Dupzom-6453732-2
Alibaba Backdoor:Win32/Zlob.180910
NANO-Antivirus Trojan.Win32.Ursu.fltxvj
Ad-Aware Trojan.GenericKD.36291018
Emsisoft Trojan.GenericKD.36291018 (B)
F-Secure Heuristic.HEUR/AGEN.1101598
TrendMicro BKDR_ZEGOST.SM17
McAfee-GW-Edition RDN/Generic Downloader.x
FireEye Generic.mg.b060ad998d5b1e4e
Sophos Mal/Generic-S
Ikarus Trojan-Downloader.Win32.Redosdru
Avira HEUR/AGEN.1101598
Microsoft Backdoor:Win32/Zegost.EF!bit
Gridinsoft Trojan.Win32.Downloader.oa
Arcabit Trojan.Generic.D229C1CA
GData Win32.Trojan.Agent.YKSTTY
Cynet Malicious (score: 85)
McAfee RDN/Generic Downloader.x
MAX malware (ai score=89)
VBA32 Trojan.Downloader
Malwarebytes Generic.Malware/Suspicious
Panda Trj/GdSda.A
ESET-NOD32 a variant of Win32/TrojanDownloader.Agent.CYI
TrendMicro-HouseCall BKDR_ZEGOST.SM17
Rising Downloader.Farfli!8.2C32 (TFE:5:mvHzXzHnJPJ)
Yandex Trojan.GenAsa!zEDnv+/5dhM
SentinelOne Static AI – Malicious PE
Fortinet W32/Agent.BLT!tr
AVG Win32:Farfli-CN [Drp]
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 Win32/Trojan.f00

How to remove Win32/TrojanDownloader.Agent.CYI?

  • 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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