Grreting card scams

[Julian Field]

Richard Frovarp wrote:
> Matt Kettler wrote:
>> Glenn Steen wrote:
>>  
>>> On 27/07/07, Matt Kettler <mkettler at evi-inc.com> wrote:
>>>    
>>>> Rick Cooper wrote:
>>>>
>>>> Given that running clamscan on the email file outside of MailScanner
>>>> detects it
>>>> as a virus, I've already conclusively proven clamav has the signature
>>>> and it
>>>> works properly.
>>>>
>>>> One observation, though, the specific test messages I used detected as
>>>> 1221 not
>>>> 1222, but they're all related.
>>>>
>>>> ecardspam1.eml: Email.Phishing.RB-1221 FOUND
>>>> ecardspam2.eml: Email.Phishing.RB-1221 FOUND
>>>> ecardspam3.eml: Email.Phishing.RB-1221 FOUND
>>>>
>>>> However, if you insist:
>>>> # sigtool --list-sigs|grep Email.Phishing.RB-1222
>>>> Email.Phishing.RB-1222
>>>>
>>>> Yes, it's there. Yes, clamscan can use it, and clamscan properly
>>>> detects the
>>>> messages as viruses when executed manually. No, clamav via MailScanner
>>>> cannot
>>>> detect it.
>>>>
>>>>       
>>> Could this perhaps have anything to do with how clam gets fed the
>>> message in MailScanner....? If I'm not completely senile (always a
>>> possibility:-), MS doesn't feed it the complete message, hence some
>>> newstyle sigs will never (be able to) trigger.
>>>     
>>
>> That goes back to my original statement that I felt that the 
>> difference had to
>> do with the fact that my MailScanner isn't up-to-date.
>>
>> I'm quite convinced that this is a MailScanner interfacing issue, as 
>> it is quite
>> clear clamav is working properly outside MS.
>>
>> (Note: Personally I don't have a problem with this "issue", I was 
>> merely joining
>> in and commenting on it hoping my observations could help others who 
>> do have
>> problems with it.)
>>
>>
>>
>>   
> I don't have that one tripping either. I figure it is due to the fact 
> that I stop a lot at the MTA and delete high scoring spam so they 
> never even reach clam.
I have now written support for passing entire messages to the ClamAV 
scanners. There is a new setting called "Reliably Detect Spam With 
ClamAV" which is "no" by default as it has a speed impact. It has no 
effect when the ClamAV scanners are not being used.

I'll release a new beta shortly.

Jules

-- 
Julian Field MEng CITP
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