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APT1, also known as Comment Crew, Comment Panda, and PLA Unit 61398, is a China-linked cyber-espionage threat actor publicly associated with the People’s Liberation Army unit of the same designation. The group conducted large-scale intellectual-property theft against U.S. companies. Its operations have used spearphishing emails carrying malicious attachments for initial access, registered extensive domain infrastructure, and employed publicly available malware, including for privilege escalation. Post-compromise activity includes Windows command-shell and batch-script execution, process discovery, network-share discovery, local network-configuration discovery, and collection of files from victim systems. APT1 has also used masquerading by naming malware to resemble legitimate software processes.
Mallory correlates actor tradecraft and target patterns against your stack, your sector, and your geography. See overlap before they land.
Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Sectors the actor has been observed targeting.
Geographies tied to known operations.
Attributed origin per open-source reporting.
40 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
12 malware families attributed to this actor across reporting.
7 additional families tracked in Mallory.
12 indicators attributed to this actor: domains, IPs, hashes, and other artifacts pulled from reporting. View more in app.
20 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Chinese state-linked espionage group focused on large-scale intellectual-property theft from U.S. companies.
Mentioned only as an example of an older numeric naming convention for hacking groups.
Referenced as an example of a named threat actor whose operations were monitored across victim networks and later documented in a major threat report.
Known for using credential dumping in Windows environments.
Match sector + geo + tech-stack targeting against your real footprint.
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.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.