APT / THREAT GROUP
xdr33
2
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 known-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of unknown activity patterns.
External References
Quick Facts
TypeAPT / Threat Group
Aliases2
Also Known As
elf.xdr33xdr33
External Intelligence
Malpedia: elf.xdr33Research Links
Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.