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ATT&CK techniqueResource Development

T1584.004 Server

Resource DevelopmentEnterpriseSub-technique

As of 2026-10-05, T1584.004 (Server) appears in 41 tracked threats, first reported 2026-02-16 and most recently 2026-09-26, with linked actors including APT38, Sapphire Sleet, Stardust Chollima; it most often appears alongside T1071.001 (Web Protocols).

Tracked threats
4111 critical, 27 high, 2 medium
First seen
2026-02-16
Last seen
2026-09-26
Threat actors
25In the threats using it
Detection rules
56Blue tier and above

Data as of:

Activity timeline

T1584.004 first appeared in tracked threats on and was most recently reported on . The busiest month was 2026-07 with 14 reports, and 41 of the 41 threats were reported in the twelve months to 2026-09.

How adversaries use it

T1584.004 Server is catalogued by MITRE ATT&CK under the Resource Development tactic in the Enterprise matrix, as a sub-technique of T1584 Compromise Infrastructure. Threadlinqs maps 41 of 2623 tracked threats (1.6%) to it; by severity that is 11 critical, 27 high, 2 medium.

Threats that use T1584.004 most often also use T1071.001 Web Protocols (29 threats), T1005 Data from Local System (25 threats), T1027 Obfuscated Files or Information (22 threats), T1082 System Information Discovery (20 threats), T1036.005 Match Legitimate Resource Name or Location (19 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.

25 tracked threat actors appear in the threats that use T1584.004; the most frequent are APT38 (5), Sapphire Sleet (5), Stardust Chollima (5), Andariel (4), Lazarus Group (4).

Mitigations

MITRE ATT&CK lists 1 mitigation for T1584.004.

Data sources

Telemetry that can reveal T1584.004, per MITRE ATT&CK.

  • Internet Scan — Response Content, Response Metadata

Threat actors using it

Tracked threats

The 30 most recent of 41 tracked threats that use T1584.004.

Detection coverage

Threadlinqs maintains 56 detection rules mapped to T1584.004 (SPL 19, KQL 18, Sigma 19). Rule content is available to Blue tier accounts and above; this page shows counts only.

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

Parent technique

T1584 Compromise Infrastructure — 164 tracked threats at the technique level.