Capture Credentials with Rpcping.exe
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About the rule
Rule Type
Standard
Rule Description
Detects using Rpcping.exe to send a RPC test connection to the target server (-s) and force the NTLM hash to be sent in the process.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Process started" AND PROCESSNAME endswith "\rpcping.exe" AND COMMANDLINE contains "-s,/s,–s,—s,―s" AND ((COMMANDLINE contains "-u,/u,–u,—u,―u" AND COMMANDLINE contains "NTLM") OR (COMMANDLINE contains "-t,/t,–t,—t,―t" AND COMMANDLINE contains "ncacn_np")) select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Julia Fomina, oscd.community
