Finger.exe LOLBin

Published: 2022-12-04
Last Updated: 2022-12-04 11:15:23 UTC
by Didier Stevens (Version: 1)
1 comment(s)

Guy's diary entry "Linux LOLBins Applications Available in Windows" reminded me of another Linux tool that is available on Windows: the ancient finger command.

Here is an example with weather info for the North Pole:

Communication takes place over TCP. Destination port is 79.

The finger.exe command sends the string before the @ sign to the host specified after the @ sign.

finger.exe is not proxy aware, and port 79 is hardcoded inside the finger.exe executable. Not as a number, but as a protocol name (finger) that is defined in the services list (%SystemRoot%\system32\drivers\etc\services);

 

Didier Stevens
Senior handler
Microsoft MVP
blog.DidierStevens.com

Keywords: finger lolbin
1 comment(s)

Comments

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dwqqqwqwq mashood
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