Procwatch

Procwatch is security monitor written in Perl that watches a /proc filesystem for new processes. When a process is created, procwatch reports the time, the username, the PID, and the binary that was run. Its output is suitable for logging to log files and is geared for system administrators who are testing a new but as yet untrusted UNIX system. Although it cannot detect, and is not proof against, hacked loadable kernel modules that have modified /proc, it is useful in watching for possible rogue binaries.