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Threat actorChina (PRC)Tracked since 2026-02

APT31

Also known as:TA412UNK_DoubleCheckUNK_QuietRacketUTA0560Violet TyphoonZirconiumJudgment PandaBronze VinewoodRed Keres

As of 2026-10-10, APT31 is a China (PRC)-nexus threat actor tracked by Threadlinqs Intelligence across 2 threats spanning vulnerability, apt. Also known as TA412, UNK_DoubleCheck, UNK_QuietRacket, UTA0560. ATT&CK coverage spans 53 techniques across 15 tactics in 2 of 2 tracked threats. Most-observed techniques: T1027 (Obfuscated Files or Information), T1055 (Process Injection), T1203 (Exploitation for Client Execution).

Tracked threats
22 critical
First seen
2026-02-15
Last seen
2026-10-10
ATT&CK techniques
53across 2 of 2 threats
Related CVEs
4Referenced by its activity
Attribution
China (PRC)Nation or origin
Nation: China (PRC) · 2 tracked threat(s) · Categories: VULNERABILITY, APT

Activity timeline

APT31 appears in 2 tracked threats between and ; the busiest month was 2026-02 with 1 report.

ATT&CK techniques observed

53 techniques observed across 2 of 2 tracked threats · Resource Development (8), Stealth (formerly Defense Evasion) (8), Execution (7), Initial Access (5), Reconnaissance (5), Collection (4)
  • T1027 Obfuscated Files or Information — Stealth (formerly Defense Evasion)observed in 2 of 2 tracked threats
  • T1055 Process Injection — Privilege Escalationobserved in 2 of 2 tracked threats
  • T1203 Exploitation for Client Execution — Executionobserved in 2 of 2 tracked threats
  • T1204.001 Malicious Link — Executionobserved in 2 of 2 tracked threats
  • T1539 Steal Web Session Cookie — Credential Accessobserved in 2 of 2 tracked threats
  • T1005 Data from Local System — Collectionobserved in 1 of 2 tracked threats
  • T1021.002 SMB/Windows Admin Shares — Lateral Movementobserved in 1 of 2 tracked threats
  • T1027.002 Software Packing — Stealth (formerly Defense Evasion)observed in 1 of 2 tracked threats
  • T1036 Masquerading — Stealth (formerly Defense Evasion)observed in 1 of 2 tracked threats
  • T1036.005 Match Legitimate Resource Name or Location — Stealth (formerly Defense Evasion)observed in 1 of 2 tracked threats
  • T1041 Exfiltration Over C2 Channel — Exfiltrationobserved in 1 of 2 tracked threats
  • T1053.005 Scheduled Task — Persistenceobserved in 1 of 2 tracked threats
  • T1056 Input Capture — Credential Accessobserved in 1 of 2 tracked threats
  • T1056.001 Keylogging — Collectionobserved in 1 of 2 tracked threats
  • T1059 Command and Scripting Interpreter — Executionobserved in 1 of 2 tracked threats

Tracked threats

Related CVEs

4 CVEs referenced by tracked APT31 activity