message
notes/note.txt
Location: OnceOnCompletion
Ransomware Research
Shrug Ransomware
Shrug is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2018, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Shrug, Shrug-2.
Quick facts
- Ransomware Family
- Shrug
- First Seen
- June 1, 2018
- Known Aliases
- Shrug
- Shrug-2
How Shrug ransomware works
File modification behavior
Shrug updates file modification timestamps after encryption.
File encryption patterns
Shrug modifies encrypted files using specific patterns to mark them as encrypted:
Extensions added after encryption
- .SHRUG
- .SHRUG2
Ransom note and payment demands
After encrypting files, Shrug displays ransom notes demanding payment for file recovery:
Technical indicators
Associated executable files
The following executable files are associated with Shrug ransomware:
- Shrug.exe
- myfile.exe
- shrug.exe
- ShrugTwo.exe
- codexgigas_6c2194f9067756ca039d57113e3b93a7a34659d4
- a.exe
About this analysis
This Shrug 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 Shrug.
Detection coverage
Elastio detects Shrug inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Shrug 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.