S0358 · tool · ATT&CK software
Ruler
1 actor on record using it
Every mark is an actor ATT&CK records using this software. Red ones also exploit a CVE in CISA KEV.
Open S0358 on attack.mitre.orgRuler is a tool to abuse Microsoft Exchange services. It is publicly available on GitHub and the tool is executed via the command line. The creators of Ruler have also released a defensive tool, NotRuler, to detect its usage.
Source: MITRE ATT&CK, S0358. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.
Every one of the 1 is a mark on the map. Named now: 1 to 1, most on record first.
Zoom in on the map and the dots under the middle of it are named where they are.
Data as of 2026-11-15. CVE List through 2026-11-15 · EPSS of 2026-11-15 · CISA KEV checked 2026-11-15. Sources: MITRE ATT&CK (© The MITRE Corporation, reproduced and distributed with its permission), the MISP Galaxy (CC0), and CyberSIXT's own coverage.