MALWARE FAMILY
xdr33
Internal ID: elf.xdr33
1
aliases
Last seen:Mar 17, 2026
Intelligence Profile
According to 360 netlab, this backdoor was derived from the leaked CIA Hive project. It propagates via a vulnerability in F5 and communicates using SSL with a forged Kaspersky certificate.
Threat Analysis
xdr33 is a malware family tracked by threat intelligence researchers and catalogued in the Malpedia dataset. It represents a distinct malicious software lineage with identifiable code characteristics, behaviors, and victimology.
External References
Quick Facts
TypeMalware Family
Aliases1
Also Known As
elf.xdr33
Research Links
Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.