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APT1, also known as Comment Crew, Comment Group, and Comment Panda, is a Chinese state-sponsored cyberespionage group linked to People's Liberation Army Unit 61398, historically associated with the PLA's Third Department and based in Shanghai. The group conducted large-scale intellectual-property theft against U.S. companies and organizations across numerous industries. Its operations have been linked to compromises of approximately 141 companies across 20 industries. In 2014, the U.S. Department of Justice indicted personnel assigned to Unit 61398 in connection with cyberespionage activities. Its targeting included industries aligned with China's economic development priorities. APT1 uses spearphishing emails containing malicious attachments or links to malicious files to establish access. Its post-compromise techniques include Windows command-shell execution, batch scripting, credential dumping, privilege escalation, and remote access through Remote Desktop Protocol. Documented credential-theft tools include Mimikatz, PWDump, and GsecDump. The group uses pass-the-hash authentication and publicly available tools and malware to support intrusion operations and privilege escalation. It collects intellectual property and compresses stolen files with RAR before exfiltration. Unit 61398 has also recruited personnel from Chinese universities, including Zhejiang University and Harbin Institute of Technology.
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.
14 malware families attributed to this actor across reporting.
9 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.