PATCH SweepViruses.pm - clamavmodule false positives

[Julian Field]

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Okay, if it has caused a second false positive in that situation, then I 
would advise both patches after all.

By the way, when doing diffs for use in patches, please do a "diff 
- -Naur" as that gives patches in a nice concise format but with enough 
context. Diffs without any context are impossible to reliably apply.

Gareth wrote:
> What does the 2nd patch affect?
> Is that when you are not using the full message scan option?
>
> In that case I would still suggest applying the 2nd patch as when I
> looked through my logs I noticed that it did have a single false
> positive where it matched a legit failed delivery notice.
> Since the option disables a check on raw messages which should not be
> there and the fact that the option is the default in clamscan/clamd it
> makes sense to me for it to be in.
>
> On Mon, 2007-08-06 at 15:16, Julian Field wrote:
>   
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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
>>
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>> Julian Field MEng CITP
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>
>   

Jules

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