Here is a handy tool that I stumbled across this morning. Last week Microsoft published a new version of the tool SigCheck on what was once Sysinternals. This tool scans a file to check the validity of a digital signature. Here are the switches that available in the app.
C:\Tools\sigchk>sigcheck
Sigcheck v1.41
Copyright (C) 2004-2007 Mark Russinovich
Sysinternals – www.sysinternals.comusage: sigcheck [-a][-i][-e][-n][[-s]|[-v]|[-m]][-q][-r][-u][-c catalog file] (file or directory)
-a Show extended version information
-c Look for signature in the specified catalog file
-e Scan executable images only (regardless of their extension).
-i Show image signers
-m Dump manifest
-n Only show file version number
-q Quiet (no banner)
-r Check for certificate revocation
-s Recurse subdirectories
-u Show unsigned files only
-v Csv output
I hadn’t used this one previously but, I have been messing around with it. It’s a handy tool for checking Microsoft files.
[tags]SigCheck, File Integrity, Signature Check, Digital Signature[/tags]