What is the best way to check programatically if DLL/EXE file is signed with authenticode?

Question

I do not want to verify the certificate. I want to use this on a build server to check all files and list the one that we may have forgot to sign.

Which language are you intending to use for that - Perl, Batch, PowerShell, ...? — Helen
– Helen, Commented Apr 5, 2011 at 17:28
We already use C#, PowerShell and Python in the build process. But most things would work I guess. — Arve
– Arve, Commented Apr 5, 2011 at 17:45

Helen · Accepted Answer · 2011-04-05 19:55:37Z

4

How about using the Get-AuthenticodeSignature PowerShell cmdlet? The description says:

If the file is not signed, the information is retrieved, but the fields are blank.

answered Apr 5, 2011 at 19:55

Helen

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2 Comments

quux Over a year ago

Be aware that get-authenticodesignature will return "NOTsigned" for files that are catalog signed rather than PE signed. See itcookbook.net/blog/get-authenticodesignaturedoesnt

AH. Over a year ago

@quux the link you provided does not point to any valid link about authenticode.

j0k · Accepted Answer · 2012-10-13 09:50:12Z

3

There is a way:

The WinVerifyTrust API can be used to verify the signature of a portable executable file.

(source)

edited Oct 13, 2012 at 9:50

j0k

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answered Oct 13, 2012 at 9:45

Michael Haephrati

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Comments

kami4ka · Accepted Answer · 2017-08-21 11:17:09Z

1

Also you can use node implementation of WinVerifyTrust API vid npm package sign-check:

npm install -g sign-check
sign-check 'path/to/file'

answered Aug 21, 2017 at 11:17

kami4ka

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