PWCHECK

PWCHECK is a password quality audit tool intended for  RACF security administrators and auditors.  It is designed to help detect trivial or poorly chosen passwords, passwords that are weakly encrypted, or cleartext passwords that might reside in memory .   PWCHECK uses various methods to find passwords, including:

bulletautomatic detection of "hashed" passwords,
bulletautomatic trials of completely trivial passwords 
bulletautomated dictionary trials
bullettests for the presence of clear passwords in TSBs.

The documentation for PWCHECK explains how to install, use, and customize it.

PWCHECK-PRO includes many additional capabilities.

FAQ here.