Ransomware Research
WannaOof Ransomware
WannaOof is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on April 1, 2019, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Inconspicuous.
Quick Facts
- Ransomware Family
- WannaOof
- First Seen
- April 1, 2019
- Known Aliases
- Inconspicuous
How WannaOof Ransomware Works
Targeted Files
log.txthmm on the Desktop
File Encryption Patterns
WannaOof modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..oofRansom Note and Payment Demands
After encrypting files, WannaOof displays ransom notes demanding payment for file recovery:
Ransom message:
notes/wallpaper.bmp
Note locations:
DesktopRansom message:
notes/note.txt
Note locations:
OnceOnCompletionTechnical Indicators
Associated Executable Files
The following executable files are associated with WannaOof ransomware:
inconspicuous.exemyfile.exe
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About This Analysis
This WannaOof ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like WannaOof.
Last updated: July 30, 2025