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ATT&CK techniqueDiscovery

T1518.001 Security Software Discovery

DiscoveryEnterpriseSub-technique

As of 2026-10-05, T1518.001 (Security Software Discovery) appears in 114 tracked threats, first reported 2026-02-04 and most recently 2026-09-29, with linked actors including APT38, Sapphire Sleet, SideCopy; it most often appears alongside T1082 (System Information Discovery).

Tracked threats
11413 critical, 89 high, 12 medium
First seen
2026-02-04
Last seen
2026-09-29
Threat actors
48In the threats using it
Detection rules
171Blue tier and above

Data as of:

Activity timeline

T1518.001 first appeared in tracked threats on and was most recently reported on . The busiest month was 2026-07 with 51 reports, and 114 of the 114 threats were reported in the twelve months to 2026-09.

How adversaries use it

T1518.001 Security Software Discovery is catalogued by MITRE ATT&CK under the Discovery tactic in the Enterprise matrix, as a sub-technique of T1518 Software Discovery. Threadlinqs maps 114 of 2623 tracked threats (4.3%) to it; by severity that is 13 critical, 89 high, 12 medium.

Threats that use T1518.001 most often also use T1082 System Information Discovery (91 threats), T1071.001 Web Protocols (77 threats), T1027 Obfuscated Files or Information (73 threats), T1036.005 Match Legitimate Resource Name or Location (70 threats), T1685 Disable or Modify Tools (70 threats). These are the techniques an intrusion set tends to chain with it, so they are the natural next places to look when it is observed.

48 tracked threat actors appear in the threats that use T1518.001; the most frequent are APT38 (3), Sapphire Sleet (3), SideCopy (3), Stardust Chollima (3), UAT-11795 (3).

Data sources

Telemetry that can reveal T1518.001, per MITRE ATT&CK.

  • Command — Command Execution
  • Firewall — Firewall Enumeration, Firewall Metadata
  • Process — OS API Execution, Process Creation

Threat actors using it

Tracked threats

The 30 most recent of 114 tracked threats that use T1518.001.

Detection coverage

Threadlinqs maintains 171 detection rules mapped to T1518.001 (SPL 42, KQL 70, Sigma 59). Rule content is available to Blue tier accounts and above; this page shows counts only.

171 detection rules (SPL/KQL/Sigma) · Blue and above. Compare plans

Parent technique

T1518 Software Discovery — 340 tracked threats at the technique level.