Network Scan

[WhtWlf2001 <whtwlf2001 () yahoo com>]

All,

I'm looking to find a tool or the best way to accomplish the following:

Scan WindowsNT machines on the local network, authenticate with a known admin password, and search
for specific files on the local hard drive, log success, failures and file information. In this
first pass I am looking for .jpg and .mpg type files (we have an internal porn issue) but later I
envision using this tool to search for other specific files or file types, evidence of trojan
files etc... 

Ideally this tool would be able to handle either 1 IP address or a range of addresses and work in
an automated fashion. Optionally to be able to dictionary attack those machines that don't have
the default admin password would be helpful as well. 

Anyone know of such a tool or developed a custom script for this type of "audit"?

Thanks.