Ransomware Research

AepCrypt Ransomware

AepCrypt is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2019, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
AepCrypt
First Seen
October 1, 2019

How AepCrypt ransomware works

File encryption patterns

AepCrypt modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
.aep

Ransom note and payment demands

After encrypting files, AepCrypt displays ransom notes demanding payment for file recovery:

file#READ ME - YOUR FILES ARE LOCKED#.rtf
notes/#READ ME - YOUR FILES ARE LOCKED#.rtf

About this analysis

This AepCrypt 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 AepCrypt.

Last updated: December 30, 2025

Detection coverage

Elastio detects AepCrypt inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify AepCrypt 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.

See How the Hunt Engine WorksRequest a Demo

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