Rex

aliases

Last seen:Mar 17, 2026

Intelligence Profile

Malware family tracked by Malpedia. ID: elf.rex

Threat Analysis

Rex is a known-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of unknown activity patterns.

Intelligence Reports Mentioning Rex

Microsoft confirms April Windows updates cause backup failures

BleepingComputer· May 4, 2026

External References

→https://rednaga.io/2016/09/21/reversing_go_binaries_like_a_pro/

Quick Facts

TypeAPT / Threat Group

Aliases2

Also Known As

Rexelf.rex

External Intelligence

Malpedia: elf.rex

Research Links

MITRE ATT&CK VirusTotal Google (news) Twitter/X search

Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.

← All Threat Actors·Geopolitics Map·Search Rex