I have a false positive with a file in one of my directories. I added it to the filter as follows: C:\Program Files\Serv-U\ServUDaemon.exe. This didn't work and I still get the report. So I changed it to C:\Program Files\Serv-U\*.exe. No go. I then tried C:\Program Files\Serv-U\* and I am still getting reports. How do I tell it to ignore this file? Thanks.

If you scan an individual file the filters are ignored because you specifically want to scan that file, try scanning a folder after you added a filter.

Also please note that * does not include sub directories
to include sub-directories you need to use a regular expression wrapped in <> tags
<C\:\\Program Files\\Serv-U\\.*>

I am to assume from your example that if I just wanted to have it ignore the files in one directory (and not the sub-directories) then I should use the following:

C\:\\Program Files\\Serv-U\\*

and not:

C:\Program Files\Serv-U\*

Thanks?

no, you should use C:\Program Files\Serv-U\*

this: C\:\\Program Files\\Serv-U\\* is a regular expression and should be enclosed in <>:
<C\:\\Program Files\\Serv-U\\*>

even then it would only match a single letter files as * in regex is any character. and .* is any character repeated multiple times

I still can't get this working.

I have the following filters set:

C:\Program Files\Serv-U\*
<C>

and this morning I get the following:

C:\PROGRA~1\Serv-U\ServUDaemon.exe: Trojan.Agent.ND-5 FOUND

What am I missing here? Thanks.

How are you scanning - a scheduled scan or some other way?

Also not sure where did the 8.3 name (C:\PROGRA~1\Serv-U) came from but you could try the following exclusion filter:
C:\PROGRA~1\Serv-U\*

I am doing it through a scheduled scan. I am not sure where the 8.3 is coming from - it is what I see in the report that I am emailed when it finds the false positive. I will try inserting the filter as you suggest.