Categories: Trojan

MSIL/TrojanDownloader.Small.COT removal instruction

The MSIL/TrojanDownloader.Small.COT 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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Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
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What MSIL/TrojanDownloader.Small.COT virus can do?

  • Anomalous binary characteristics

How to determine MSIL/TrojanDownloader.Small.COT?


File Info:

crc32: E8219958md5: e3bd75e05770ebd9abde78d848488c1dname: E3BD75E05770EBD9ABDE78D848488C1D.mlwsha1: 66fa05128ff13512ea044abb5a87a771e3a9d751sha256: 09d8ca1bb525fa6483c213716d1b9a86dd79490dd90d191f8e2906e80e8bda69sha512: 9019c57746c968cbb9b7824ee8a1e93ea612f6a60ca2d0301124777ddb403eb41dc8fe5f9e52bc59bc50ec9af5c3ab3da119c85101619289e537acfef9a2b0c1ssdeep: 384:rZqy0wvRUCefSL/5LOqvORwaz6v8iv7tDLcL2OLdy/MBUw1Z2MBLpLMqy8B0GsqP:r0y0wvWALhLOqvORwaz6v8iv7Bw5Xf24type: PE32+ executable (GUI) x86-64 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0LegalCopyright: Copyright xa9 2021Assembly Version: 1.0.0.0InternalName: WindowsFormsApp8.exeFileVersion: 1.0.0.0CompanyName: LegalTrademarks: Comments: ProductName: WindowsFormsApp8ProductVersion: 1.0.0.0FileDescription: WindowsFormsApp8OriginalFilename: WindowsFormsApp8.exe

MSIL/TrojanDownloader.Small.COT also known as:

K7AntiVirus Trojan-Downloader ( 00581fe21 )
Lionic Trojan.MSIL.Blocker.j!c
Elastic malicious (high confidence)
ALYac Trojan.GenericKD.37544527
Cylance Unsafe
Zillya Trojan.Blocker.Win32.72409
CrowdStrike win/malicious_confidence_90% (W)
Alibaba Ransom:MSIL/Blocker.88699027
K7GW Trojan-Downloader ( 00581fe21 )
Symantec Trojan.Gen.MBT
ESET-NOD32 a variant of MSIL/TrojanDownloader.Small.COT
APEX Malicious
Avast Win64:Malware-gen
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan-Ransom.MSIL.Blocker.gen
BitDefender Trojan.GenericKD.37544527
NANO-Antivirus Trojan.Win64.Ransom.janhji
MicroWorld-eScan Trojan.GenericKD.37544527
Tencent Msil.Trojan.Blocker.Akoz
Ad-Aware Trojan.GenericKD.37544527
Sophos Mal/Generic-S
McAfee-GW-Edition RDN/Ransom
FireEye Trojan.GenericKD.37544527
Emsisoft Trojan.GenericKD.37544527 (B)
SentinelOne Static AI – Malicious PE
Webroot W32.Malware.Gen
Avira HEUR/AGEN.1144615
eGambit Unsafe.AI_Score_96%
Microsoft Trojan:Win32/Wacatac.B!ml
GData Trojan.GenericKD.37544527
McAfee RDN/Ransom
MAX malware (ai score=81)
VBA32 TrojanRansom.MSIL.Blocker
Malwarebytes Trojan.Crypt.MSIL.Generic
Panda Trj/CI.A
Ikarus Trojan-Downloader.MSIL.Small
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Blocker!tr
AVG Win64:Malware-gen
Paloalto generic.ml

How to remove MSIL/TrojanDownloader.Small.COT?

  • 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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