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APT20, also known as Wocao, is a China-linked advanced persistent threat group. It is associated with long-term, stealthy intrusion activity characteristic of espionage-oriented operations. The group has been referenced among named APT actors and is commonly identified in industry reporting under the APT20 designation. APT20 is associated with targeted intrusions designed to obtain and maintain unauthorized access over extended periods. Reported tradecraft for advanced persistent threat operations of this type includes initial compromise through spear phishing and other social-engineering methods, establishment of a foothold, privilege escalation, internal reconnaissance, lateral movement, persistence, deployment of additional tooling, defense evasion, and eventual data exfiltration. Such actors commonly use customized malware and low-and-slow operational patterns intended to reduce detection. The group is best understood as an espionage-focused threat actor rather than a ransomware or disruptive operator. No high-confidence evidence is provided here to support ransomware, extortion, or destructive activity by this actor. Known aliasing in the supplied material is limited to Wocao and APT20.
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Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Attributed origin per open-source reporting.
1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
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