Ransomware Research
ALC Ransomware
ALC is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2023, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: ALC - trbo.
Quick Facts
- Ransomware Family
- ALC
- First Seen
- February 1, 2023
- Known Aliases
- ALC - trbo
How ALC Ransomware Works
Targeted Files
https://tria.ge/230224-ehcslaac24/behavioral1 https://www.fortinet.com/blog/threat-research/ransomware-roundup-sirattacker-acl https://app.any.run/tasks/b289f850-f4b7-4635-985d-891244946a6f/
Ransom Note and Payment Demands
After encrypting files, ALC displays ransom notes demanding payment for file recovery:
RUS!.txtRansom message:
notes/RUS!.txt
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with ALC ransomware:
0abe1ab9c75395a4ca829028d9c8c6530bd3bfda49e4b856b6f3539b9aa36ea5_.jsonmain_trboransom - Enc.exe
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About This Analysis
This ALC 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 ALC.
Last updated: July 30, 2025