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Ransomware Research
VirLock Ransomware
VirLock is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2016, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: NSB, ViraLock.
Quick facts
- Ransomware Family
- VirLock
- First Seen
- February 1, 2016
- Known Aliases
- NSB
- ViraLock
How VirLock ransomware works
File modification behavior
How VirLock alters file modification timestamps is not known.
File encryption patterns
VirLock modifies encrypted files using specific patterns to mark them as encrypted:
Extensions added after encryption
- .exe
Ransom note and payment demands
After encrypting files, VirLock displays ransom notes demanding payment for file recovery:
Technical indicators
Associated executable files
The following executable files are associated with VirLock ransomware:
- myfile.exe
- Win64.Trojan.GreenBug
- UoQoIUws
- DMQM.exe
- VwgC.exe
- Virlock3.exe
- Virlock Ransomware.exe
- virlock.exe
- Virlock.exe
- virlock (1).exe
- Virlock2.exe
About this analysis
This VirLock ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like VirLock.
Detection coverage
Elastio detects VirLock inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify VirLock across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a hunt against your recovery points to confirm.