Put the file in a password-protected Zipfile, e.g. with Winzip and then send the zip-file it to said admin and to
virus (at) asw (dot) cz

avast doesn’t detect this ?

and APPLY all Windowsupdates; details for the most important patches and how to prevent the shutdown of the system can be found everywhere & via a board search for:

BLAST
:wink:

if you want more detailed help, you should of course post the hijackthis-log HERE