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.

GridinSoft Anti-Malware

Gridinsoft Anti-Malware

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: E8219958
md5: e3bd75e05770ebd9abde78d848488c1d
name: E3BD75E05770EBD9ABDE78D848488C1D.mlw
sha1: 66fa05128ff13512ea044abb5a87a771e3a9d751
sha256: 09d8ca1bb525fa6483c213716d1b9a86dd79490dd90d191f8e2906e80e8bda69
sha512: 9019c57746c968cbb9b7824ee8a1e93ea612f6a60ca2d0301124777ddb403eb41dc8fe5f9e52bc59bc50ec9af5c3ab3da119c85101619289e537acfef9a2b0c1
ssdeep: 384:rZqy0wvRUCefSL/5LOqvORwaz6v8iv7tDLcL2OLdy/MBUw1Z2MBLpLMqy8B0GsqP:r0y0wvWALhLOqvORwaz6v8iv7Bw5Xf24
type: PE32+ executable (GUI) x86-64 Mono/.Net assembly, for MS Windows

Version Info:
Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9  2021
Assembly Version: 1.0.0.0
InternalName: WindowsFormsApp8.exe
FileVersion: 1.0.0.0
CompanyName: 
LegalTrademarks: 
Comments: 
ProductName: WindowsFormsApp8
ProductVersion: 1.0.0.0
FileDescription: WindowsFormsApp8
OriginalFilename: 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?

MSIL/TrojanDownloader.Small.COT removal tool

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.

About the author

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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