Estemani is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2019, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Mockba.
Quick Facts
Ransomware Family
Estemani
First Seen
February 1, 2019
Known Aliases
Mockba
How Estemani Ransomware Works
Targeted Files
May not add any suffixes https://app.any.run/tasks/b5fc1061-5bc4-4ab3-89f9-c5a3daf01ef2/
File Encryption Patterns
Estemani modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..mockba
Ransom Note and Payment Demands
After encrypting files, Estemani displays ransom notes demanding payment for file recovery:
fileHOW_DECRYPT_FILES.txt
Ransom message:
notes/HOW_DECRYPT_FILES.txt
file@_READ_TO_RECOVER_FILES_@.txt
Ransom message:
notes/@_READ_TO_RECOVER_FILES_@.txt
Note locations:
EveryFolder
file# HOW TO RECOVER YOUR DATA #.txt
Ransom message:
notes/# HOW TO RECOVER YOUR DATA #.txt
Note locations:
EveryFolder
Technical Indicators
Associated Executable Files
The following executable files are associated with Estemani ransomware:
sam.exe
SDelete
sdelete.exe
YuQ5f0mK.exe
qV40a1.exe
final.exe
Elastio Can Help You
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This Estemani 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 Estemani.