APT / THREAT GROUP
QHost
3
aliases
Last seen:Mar 17, 2026
Intelligence Profile
According to F-Secure, this is a network worm with backdoor capabilities, which spreads itself under Win32 systems. The worm was reported in-the-wild in July-August, 2000. The worm itself is a Win32 executable file and about 120K long, written in MS Visual C++.
Threat Analysis
QHost is a known-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of unknown activity patterns.
Quick Facts
TypeAPT / Threat Group
Aliases3
Also Known As
win.qhostTolougeQHost
External Intelligence
Malpedia: win.qhostResearch Links
Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.