XServer

aliases

Last seen:Mar 17, 2026

Intelligence Profile

Malware family tracked by Malpedia. ID: win.xserver

Threat Analysis

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

External References

→https://norfolkinfosec.com/filesnfer-tool-c-python/

→https://resources.fox-it.com/rs/170-CAK-271/images/201912_Report_Operation_Wocao.pdf

Quick Facts

TypeAPT / Threat Group

Aliases3

Also Known As

win.xserverXServerFilesnfer

External Intelligence

Malpedia: win.xserver

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.

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