Ransomware Research

ODCODC Ransomware

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

Quick facts

Ransomware Family
ODCODC
First Seen
May 1, 2016

How ODCODC ransomware works

File encryption patterns

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

Extensions added after encryption
.odcodc
Prefixes added to encrypted files
C-email-abennaki@india.com-

Ransom note and payment demands

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

fileHOW_TO_RESTORE_FILES.txt
notes/HOW_TO_RESTORE_FILES.txt
Location: EveryFolder

Technical indicators

Associated executable files

The following executable files are associated with ODCODC ransomware:

Recovery and decryption tools

Decryption tools may be available for ODCODC. Review the resources below:

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About this analysis

This ODCODC 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 ODCODC.

Last updated: December 30, 2025

Detection coverage

Elastio detects ODCODC inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify ODCODC 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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