file/^README-\w{15}\.txt$/
notes/README-4RcrXfvVksS5ACA.txt
Location: EveryFolder
Ransomware Research
Mortar Ransomware
Mortar is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2026, this ransomware has been actively targeting systems worldwide.
Quick facts
- Ransomware Family
- Mortar
- First Seen
- May 1, 2026
How Mortar ransomware works
File modification behavior
Mortar updates file modification timestamps after encryption.
File encryption patterns
Mortar modifies encrypted files using specific patterns to mark them as encrypted:
Extensions added after encryption
- ./\.\w{15}$/
Ransom note and payment demands
After encrypting files, Mortar displays ransom notes demanding payment for file recovery:
About this analysis
This Mortar ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like Mortar.
Detection coverage
Elastio detects Mortar inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Mortar across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a hunt against your recovery points to confirm.