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Threat actorTracked since 2026-02

Stonefly

As of 2026-06-19, Stonefly is a threat actor tracked by Threadlinqs Intelligence across 3 threats spanning malware, ransomware. ATT&CK coverage spans 55 techniques across 13 tactics in 3 of 3 tracked threats. Most-observed techniques: T1082 (System Information Discovery), T1105 (Ingress Tool Transfer), T1036 (Masquerading).

Tracked threats
32 critical · 1 high
First seen
2026-02-24
Last seen
2026-06-19
ATT&CK techniques
55across 3 of 3 threats
Related CVEs
0None referenced
3 tracked threat(s) · Categories: MALWARE, RANSOMWARE

Activity timeline

Stonefly appears in 3 tracked threats between and ; the busiest month was 2026-02 with 1 report.

ATT&CK techniques observed

55 techniques observed across 3 of 3 tracked threats · Stealth (formerly Defense Evasion) (10), Command and Control (6), Discovery (6), Execution (6), Collection (5), Credential Access (5)
  • T1082 System Information Discovery — Discoveryobserved in 3 of 3 tracked threats
  • T1105 Ingress Tool Transfer — Command and Controlobserved in 3 of 3 tracked threats
  • T1036 Masquerading — Stealth (formerly Defense Evasion)observed in 2 of 3 tracked threats
  • T1041 Exfiltration Over C2 Channel — Exfiltrationobserved in 2 of 3 tracked threats
  • T1053 Scheduled Task/Job — Persistenceobserved in 2 of 3 tracked threats
  • T1059.001 PowerShell — Executionobserved in 2 of 3 tracked threats
  • T1071.001 Web Protocols — Command and Controlobserved in 2 of 3 tracked threats
  • T1083 File and Directory Discovery — Discoveryobserved in 2 of 3 tracked threats
  • T1190 Exploit Public-Facing Application — Initial Accessobserved in 2 of 3 tracked threats
  • T1486 Data Encrypted for Impact — Impactobserved in 2 of 3 tracked threats
  • T1489 Service Stop — Impactobserved in 2 of 3 tracked threats
  • T1490 Inhibit System Recovery — Impactobserved in 2 of 3 tracked threats
  • T1566 Phishing — Initial Accessobserved in 2 of 3 tracked threats
  • T1569.002 System Services: Service Execution — Executionobserved in 2 of 3 tracked threats
  • T1003 OS Credential Dumping — Credential Accessobserved in 1 of 3 tracked threats

Tracked threats