Ransomware Research

ZekwaCrypt Ransomware

ZekwaCrypt is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2016, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
ZekwaCrypt
First Seen
June 1, 2016

How ZekwaCrypt ransomware works

File encryption patterns

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

Extensions added after encryption
./\.[a-z]{7}\b/

Ransom note and payment demands

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

fileencrypted_readme.txt
notes/encrypted_readme.txt

About this analysis

This ZekwaCrypt 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 ZekwaCrypt.

Last updated: December 30, 2025

Detection coverage

Elastio detects ZekwaCrypt inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify ZekwaCrypt 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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