Ransomware Research
Jaff Ransomware
Jaff is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Jaff
- First Seen
- May 1, 2017
How Jaff Ransomware Works
Targeted Files
https://tria.ge/220531-c7wkwsbfd9
File Encryption Patterns
Jaff modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..jaff
..wlu
..sVn
Ransom Note and Payment Demands
After encrypting files, Jaff displays ransom notes demanding payment for file recovery:
README_TO_DECRYPT.txt
README_TO_DECRYPT.html
Ransom message:
notes/README_TO_DECRYPT.html
Note locations:
EveryFolder
README_TO_DECRYPT.bmp
README_TO_DECRYPTl.bmp
Ransom message:
notes/README_TO_DECRYPTl.bmp
Note locations:
EveryFolder
README_TO_DECRYPTl.txt
Ransom message:
notes/README_TO_DECRYPTl.txt
Note locations:
EveryFolder
!!!!README_FOR_SAVE FILES.txt
Ransom message:
notes/!!!!README_FOR_SAVE FILES.txt
Note locations:
EveryFolder
!!!!!SAVE YOUR FILES!!!!.txt
Ransom message:
notes/!!!!!SAVE YOUR FILES!!!!.txt
Note locations:
EveryFolder
!!!SAVE YOUR FILES!.bmp
Ransom message:
notes/!!!SAVE YOUR FILES!.bmp
Note locations:
EveryFolder
!!!SAVE YOUR FILES.bmp
Ransom message:
notes/!!!SAVE YOUR FILES.bmp
Note locations:
EveryFolder
ReadMe.txt
Ransom message:
notes/ReadMe.txt
Note locations:
EveryFolder
ReadMe.bmp
Ransom message:
notes/ReadMe.bmp
Note locations:
EveryFolder
ReadMe.html
Ransom message:
notes/ReadMe.html
Note locations:
EveryFolder
README TO SAVE YOUR FILES.bmp
Ransom message:
notes/README TO SAVE YOUR FILES.bmp
Note locations:
EveryFolder
README TO SAVE YOUR FILES.html
Ransom message:
notes/README TO SAVE YOUR FILES.html
Note locations:
EveryFolder
README TO SAVE YOUR FILES.txt
Ransom message:
notes/README TO SAVE YOUR FILES.txt
Note locations:
EveryFolder
Technical Indicators
Associated Executable Files
The following executable files are associated with Jaff ransomware:
Rcfcngzxx
NLI.exe
Wanna Crypt 2.exe
pitupi20.exe.3204.dr
pitupi20.exe
04_pitupi20.exe
MM_0.exe
f87346b.exe
dridex.exe
pitupi20.exe.3476.dr
666.exe
ÍøÒ×ÆÆ½â666.exe
Rcfcngzxx.exe
MM_2.exe
pitupi20.exe_
924c84415.exe
jaff.exe
levinsky8.exe
Elastio Can Help You
Don't let Jaff ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This Jaff 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 Jaff.
Last updated: July 30, 2025