PATCH SweepViruses.pm - clamavmodule false positives

Julian Field MailScanner at ecs.soton.ac.uk
Mon Aug 6 15:16:14 IST 2007


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You only actually want to apply the first of the 2 patches, as you only 
want to affect the code that scans the *.message and *.header files.

It will be in the next release.

Please can some other people test this and confirm it works reliably?

Gareth wrote:
> Attached is a patch for SweepViruses.pm which fixes the false positives
> issue with Phishing.Heuristics.Email.SpoofedDomain when using
> Clamavmodule and the full message scan option.
>
> It passes the CL_SCAN_PHISHING_DOMAINLIST option which according to the
> clamavmodule source :-
> =item CL_SCAN_PHISHING_DOMAINLIST
> Phishing module: restrict URL scanning to domains from .pdf
> (RECOMMENDED).
>
> I believe that as this option was not previously set it is equivalent to
> the following clamscan option :-
>        --no-phishing-restrictedscan
>        Enable url-based heuristic phishing detection for all domains
> (might lead to false positives!).
>
> Personally I think CL_SCAN_PHISHING_DOMAINLIST should do the same as
> --no-phishing-restrictedscan and not be the inverse of it. Maybe a bug.
> I will contact the author about it anyway.
>
> I dont really know what this option does exactly but it is a recommended
> setting, its name seems to indicate it is related to the false positives
> I was getting, and setting it does seem to have cured the problem.
>   

Jules

- -- 
Julian Field MEng CITP
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