MISTCLOAK

aliases

Last seen:Mar 17, 2026

Intelligence Profile

Mandiant associates this with UNC4191, this malware decrypts and runs DARKDEW.

Threat Analysis

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

Intelligence Reports Mentioning MISTCLOAK

Three China-Linked Clusters Target Southeast Asian Government in 2025 Cyber Campaign

The Hacker News· Mar 30, 2026

External References

→https://news.sophos.com/en-us/2022/11/03/family-tree-dll-sideloading-cases-may-be-related/

→https://www.mandiant.com/resources/blog/china-nexus-espionage-southeast-asia

Quick Facts

TypeAPT / Threat Group

Aliases3

Also Known As

win.mistcloakHIUPANMISTCLOAK

External Intelligence

Malpedia: win.mistcloak

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.

← All Threat Actors·Geopolitics Map·Search MISTCLOAK