Full Disclosure mailing list archives

Re: Undetectable Virus from CANADA ISP 69.197.83.68


From: devis <devis () easynix net>
Date: Sun, 24 Oct 2004 16:26:25 +0200

Well its the good old trick <string>.<good known extension>[ insert numerous spaces here ].<nasty executable extension>

This relies on MS IExplore or Outlook to not show more than X characters of the file name, but as your screen shots show, its detected as a Screen saver meanijng it has a .scr extension which happens to be executable as well.

$ file details/details.txt\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ .scr
MS-DOS executable (EXE), OS/2 or MS Windows

Does that tricks Hotmail / Mc Afee every time ?

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