Deadly Ransomware
Deadly is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2016, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Deadly for a Good Purpose.
Quick facts
How Deadly ransomware works
File encryption patterns
Deadly modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, Deadly displays ransom notes demanding payment for file recovery:
notes/ransome.html
Technical indicators
Associated executable files
The following executable files are associated with Deadly ransomware:
- A858SEPJANBLEED.exe
- ransomware
- core32x86.exe
- script_libraries_download.exe
- Windows Host Application.exe
About this analysis
This Deadly 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 Deadly.
Last updated: December 30, 2025
Elastio detects Deadly inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Deadly 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.
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