AnteFrigus is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on November 1, 2019, this ransomware has been actively targeting systems worldwide.
Quick Facts
Ransomware Family
AnteFrigus
First Seen
November 1, 2019
How AnteFrigus Ransomware Works
File Encryption Patterns
AnteFrigus modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
./\.[a-z]{4,6}$/
Ransom Note and Payment Demands
After encrypting files, AnteFrigus displays ransom notes demanding payment for file recovery:
file/^[a-z]{4,6}-readme\.txt$/
Ransom message:
notes/qrja-readme.txt
Note locations:
EveryFolder
file/^CLICK_HERE-[a-z]{4,6}\.txt$/
Ransom message:
notes/CLICK_HERE-eadfda.txt
Note locations:
EveryFolder
file/^ATTENTION-[a-z]{4,6}-README\.txt$/
Ransom message:
notes/ATTENTION-daaefc-README.txt
Note locations:
EveryFolder
Technical Indicators
Associated Executable Files
The following executable files are associated with AnteFrigus ransomware:
This AnteFrigus 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 AnteFrigus.