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Threat actorTracked since 2026-03

UNC6691

As of 2026-08-17, UNC6691 is a threat actor tracked by Threadlinqs Intelligence across 2 threats spanning vulnerability, zero day. ATT&CK coverage spans 38 techniques across 12 tactics in 2 of 2 tracked threats. Most-observed techniques: T1005 (Data from Local System), T1027 (Obfuscated Files or Information), T1041 (Exfiltration Over C2 Channel).

Tracked threats
22 critical
First seen
2026-03-04
Last seen
2026-03-06
ATT&CK techniques
38across 2 of 2 threats
Related CVEs
25Referenced by its activity
2 tracked threat(s) · Categories: VULNERABILITY, ZERO_DAY

Activity timeline

UNC6691 appears in 2 tracked threats between and .

ATT&CK techniques observed

38 techniques observed across 2 of 2 tracked threats · Command and Control (7), Resource Development (6), Stealth (formerly Defense Evasion) (6), Collection (4), Execution (3), Credential Access (2)
  • T1005 Data from Local System — Collectionobserved in 2 of 2 tracked threats
  • T1027 Obfuscated Files or Information — Stealth (formerly Defense Evasion)observed in 2 of 2 tracked threats
  • T1041 Exfiltration Over C2 Channel — Exfiltrationobserved in 2 of 2 tracked threats
  • T1056 Input Capture — Collectionobserved in 2 of 2 tracked threats
  • T1068 Exploitation for Privilege Escalation — Privilege Escalationobserved in 2 of 2 tracked threats
  • T1082 System Information Discovery — Discoveryobserved in 2 of 2 tracked threats
  • T1113 Screen Capture — Collectionobserved in 2 of 2 tracked threats
  • T1189 Drive-by Compromise — Initial Accessobserved in 2 of 2 tracked threats
  • T1190 Exploit Public-Facing Application — Initial Accessobserved in 2 of 2 tracked threats
  • T1203 Exploitation for Client Execution — Executionobserved in 2 of 2 tracked threats
  • T1518 Software Discovery — Discoveryobserved in 2 of 2 tracked threats
  • T1555 Credentials from Password Stores — Credential Accessobserved in 2 of 2 tracked threats
  • T1657 Financial Theft — Impactobserved in 2 of 2 tracked threats
  • T1008 Fallback Channels — Command and Controlobserved in 1 of 2 tracked threats
  • T1036 Masquerading — Stealth (formerly Defense Evasion)observed in 1 of 2 tracked threats

Tracked threats

Related CVEs

25 CVEs referenced by tracked UNC6691 activity