RCRU64 Ransomware
RCRU64 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on April 1, 2021, this ransomware has been actively targeting systems worldwide.
Quick facts
How RCRU64 ransomware works
File encryption patterns
RCRU64 modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, RCRU64 displays ransom notes demanding payment for file recovery:
notes/Read_Me!_.txt
notes/ReadMe_Now!.hta
Technical indicators
Associated executable files
The following executable files are associated with RCRU64 ransomware:
- RCRU_64.exe
- Desktopini.exe
- kamira99@tutanota.com.exe
- file.exe
- Leoxrinse234@mailfence.com.exe_.exe
About this analysis
This RCRU64 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 RCRU64.
Last updated: December 30, 2025
Elastio detects RCRU64 inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify RCRU64 across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a scan against your recovery points to confirm.
Recent ransomware
Explore other threats in our database