Ransomware Research
SyncCrypt Ransomware
SyncCrypt is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- SyncCrypt
- First Seen
- August 1, 2017
How SyncCrypt Ransomware Works
Targeted Files
Should start from Temp\BackupClient\sync.exe -e c:\Users\qq\Desktop\ https://www.bleepingcomputer.com/news/security/synccrypt-ransomware-hides-inside-jpg-files-appends-kk-extension/
File Encryption Patterns
SyncCrypt modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..kkRansom Note and Payment Demands
After encrypting files, SyncCrypt displays ransom notes demanding payment for file recovery:
readme.htmlRansom message:
notes/readme.html
Note locations:
Desktopreadme.pngRansom message:
notes/readme.png
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with SyncCrypt ransomware:
SyncCrypt_Mal_WSF.wsfCourtOrder_845493809.wsfsync.exe003_JPG.arrival.jpg1503965176-arrival.jpgX8IOl.jpgarrival.jpgSyncCrypt_Mal_JPG.jpgarriaval.jpg
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About This Analysis
This SyncCrypt 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 SyncCrypt.
Last updated: July 30, 2025