Possible MOVEit Transfer SSRF via MOVEitISAPI action m2
- Category
- webserver
- Author
- HuntRule
- Published
- 2026-09-08
- Updated
- 2026-09-08
ATT&CK techniques
Initial Access → C2Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
Exfiltration
Impact
What it detects
This rule detects requests to MOVEitISAPI.dll with action=m2, the server-side request forwarding primitive identified through patch diffing by Assetnote for CVE-2023-34362. The m2 action proxies requests toward internal-only MOVEit endpoints and is a core step in reaching the vulnerable machine2 logic. Detecting this action on the ISAPI extension highlights probing or exploitation of the internal request path.
Reporting behind it
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.
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