Possible .NET Remoting Deserialisation Exploitation via REM Endpoint

ATT&CK techniques

Initial Access → Lateral Movement

Recon
Resource Dev
Initial Access
- T1190Exploit Public-Facing Application
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
- T1210Exploitation of Remote Services
Collection
C2
Exfiltration
Impact

What it detects

This rule detects POST or M-POST requests to a .rem endpoint used by .NET Remoting over HTTP, the transport abused to deliver serialized gadget payloads for remote code execution through insecure deserialisation. Requests to these remoting endpoints, especially with the rare M-POST verb, indicate probing or exploitation of an exposed .NET Remoting service.

Reporting behind it

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Possible .NET Remoting Deserialisation Exploitation via REM Endpoint

Pivot detection · T1190 · 9 related

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