MALWARE FAMILY

XDSpy

Internal ID: win.xdspy

aliases

Last seen:Mar 17, 2026

Intelligence Profile

According to ESET Research, XDDown is a primary malware component and is strictly a downloader. It persists on the system using the traditional Run key. It downloads additional plugins from the hardcoded C&C server using the HTTP protocol. The HTTP replies contain PE binaries encrypted with a hardcoded two-byte XOR key. Plugins include a module for reconnaissance on the affected system, crawling drives, file exfiltration, SSID gathering, and grabbing saved passwords.

Threat Analysis

XDSpy 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

→https://github.com/eset/malware-ioc/tree/master/xdspy/

→https://harfanglab.io/insidethelab/sadfuture-xdspy-latest-evolution/

→https://vblocalhost.com/uploads/VB2020-Faou-Labelle.pdf

→https://www.welivesecurity.com/2020/10/02/xdspy-stealing-government-secrets-since-2011/

→https://www.welivesecurity.com/wp-content/uploads/2021/04/ESET_Industry_Report_Government.pdf

Quick Facts

TypeMalware Family

Aliases1

Also Known As

win.xdspy

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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