1200KM / tool
Ruler — Attack Tool
Ruler 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.
Tool identity and evidence
Included because the active pinned ATT&CK object has type tool. This is an upstream classification, not an assurance of benignness or a recommendation to run it.
Aliases: Ruler
Existing author guides
No reviewed association in this snapshot.
Primary documentation
No reviewed association in this snapshot.
Connected ecosystem references
Linked tags
Documented actor use
Explicit actor-to-software uses relationships in the pinned ATT&CK source. These links are historical behavior context, not attribution of current events.
- APT33 · G0064 · Pinned relationship source (relationship--33f1d509-3bca-492a-a08b-9e0561433b5f)
Technique-specific simulations and detections
Detection links describe the associated behavior, not independently verified tool-specific signatures.
Telemetry context
Derived from the explicitly linked TTPs; not proof of sensor coverage for this tool.
Pinned research references. No browser attack runner or production-validated detector is asserted. Imported procedures remain unvalidated; any bounded lab evidence has its own scope. ATT&CK / Atomic provenance · Detection provenance.