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ATT&CK techniqueResource Development

T1587.004 Exploits

Resource DevelopmentEnterpriseSub-technique

As of 2026-10-05, T1587.004 (Exploits) appears in 122 tracked threats, first reported 2026-02-05 and most recently 2026-09-30, with linked actors including APT28, Hacktron AI, Nightmare Eclipse; it most often appears alongside T1190 (Exploit Public-Facing Application).

Tracked threats
12263 critical, 49 high, 7 medium
First seen
2026-02-05
Last seen
2026-09-30
Threat actors
17In the threats using it
Detection rules
78Blue tier and above

Data as of:

Activity timeline

T1587.004 first appeared in tracked threats on and was most recently reported on . The busiest month was 2026-07 with 36 reports, and 122 of the 122 threats were reported in the twelve months to 2026-09.

How adversaries use it

T1587.004 Exploits is catalogued by MITRE ATT&CK under the Resource Development tactic in the Enterprise matrix, as a sub-technique of T1587 Develop Capabilities. Threadlinqs maps 122 of 2623 tracked threats (4.7%) to it; by severity that is 63 critical, 49 high, 7 medium.

Threats that use T1587.004 most often also use T1190 Exploit Public-Facing Application (76 threats), T1068 Exploitation for Privilege Escalation (61 threats), T1203 Exploitation for Client Execution (55 threats), T1082 System Information Discovery (53 threats), T1588.006 Vulnerabilities (53 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.

17 tracked threat actors appear in the threats that use T1587.004; the most frequent are APT28 (2), Hacktron AI (2), Nightmare Eclipse (2), UAT-9686 (2), BlueDelta (1).

Mitigations

MITRE ATT&CK lists 1 mitigation for T1587.004.

Threat actors using it

Tracked threats

The 30 most recent of 122 tracked threats that use T1587.004.

Detection coverage

Threadlinqs maintains 78 detection rules mapped to T1587.004 (SPL 24, KQL 23, Sigma 31). Rule content is available to Blue tier accounts and above; this page shows counts only.

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

Parent technique

T1587 Develop Capabilities — 402 tracked threats at the technique level.