How to remove “Ransom.Koolova”?

The Ransom.Koolova 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 Ransom.Koolova virus can do?

Creates RWX memory
Network activity detected but not expressed in API logs

How to determine Ransom.Koolova?


File Info:
crc32: 4B80ACF0
md5: 7afca2b34c94997e671c41558d7859e6
name: 7AFCA2B34C94997E671C41558D7859E6.mlw
sha1: c4c25e7c26b5370966e85f00428e5335dd55e15f
sha256: 63a145381e355bb97e9b8ff44a1fa8a07065bc98dda6afe9c53eaa02cbc847f0
sha512: 7bc735c08ed6f089a64dc16827873446d9adaa1e0945565021b37845deb97f0a11b379413b9dfbb7d3560a9137dc28f2c199839f41f38e619d34819be9106f24
ssdeep: 768:sYQEq51KNtazCJXTPB7d0kAF10ttSwUqk:sVEqPwt7XbBx0ki2tSwVk
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:
Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9  2015
Assembly Version: 1.0.0.0
InternalName: DUMB.exe
FileVersion: 1.0.0.0
CompanyName: 
LegalTrademarks: 
Comments: 
ProductName: DUMB
ProductVersion: 1.0.0.0
FileDescription: DUMB
OriginalFilename: DUMB.exe

Ransom.Koolova also known as:

K7AntiVirus	Trojan ( 0056a4581 )
Lionic	Trojan.Win32.Koolova.4!c
Elastic	malicious (high confidence)
DrWeb	Trojan.Encoder.15077
Cynet	Malicious (score: 100)
ALYac	Trojan.Ransom.DUMB
Cylance	Unsafe
Zillya	Trojan.Filecoder.Win32.8484
Alibaba	Ransom:MSIL/FileCoder.e59355f2
K7GW	Trojan ( 0056a4581 )
Cybereason	malicious.34c949
ESET-NOD32	a variant of MSIL/Filecoder.DY
APEX	Malicious
Avast	Win32:RansomX-gen [Ransom]
ClamAV	Win.Ransomware.Koolova-9850494-0
Kaspersky	HEUR:Trojan-Ransom.MSIL.Encoder.gen
BitDefender	Generic.Ransom.Koolova.D47E19AD
NANO-Antivirus	Trojan.Win32.Filecoder.fjwcei
MicroWorld-eScan	Generic.Ransom.Koolova.D47E19AD
Tencent	Win32.Trojan.Generic.Amcy
Ad-Aware	Generic.Ransom.Koolova.D47E19AD
Sophos	Mal/Crypdum-A
BitDefenderTheta	Gen:NN.ZemsilF.34170.cm0@aG4lBOf
McAfee-GW-Edition	GenericRXEF-BT!7AFCA2B34C94
FireEye	Generic.Ransom.Koolova.D47E19AD
Emsisoft	Generic.Ransom.Koolova.D47E19AD (B)
SentinelOne	Static AI – Suspicious PE
Avira	HEUR/AGEN.1133963
Antiy-AVL	Trojan/Generic.ASMalwS.28CBADA
Microsoft	Ransom:MSIL/FileCoder.PA!MTB
GData	MSIL.Trojan-Ransom.Filecoder.AN
AhnLab-V3	Trojan/Win32.Occamy.C2499816
McAfee	GenericRXEF-BT!7AFCA2B34C94
MAX	malware (ai score=89)
VBA32	TScope.Trojan.MSIL
Malwarebytes	Ransom.Koolova
Panda	Trj/GdSda.A
Ikarus	Trojan.MSIL.Filecoder
Fortinet	MSIL/Filecoder.DY!tr.ransom
AVG	Win32:RansomX-gen [Ransom]

How to remove Ransom.Koolova?

Ransom.Koolova 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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