[clamav-users] ClamAV+exim: scanner finds not a single malware

Groach groachmail-stopspammingme at yahoo.com
Mon May 23 15:33:10 EDT 2016

On 23/05/2016 21:21, Joel Esler wrote:
> On Mon, May 23, 2016 at 08:56:57PM +0200, Groach wrote:
>> On 23/05/2016 20:39, Dave McMurtrie wrote:
>>> On Mon, 2016-05-23 at 19:52 +0200, C.D. Cochrane wrote:
>>> ClamAV is fast, free, easy to integrate with just about any MTA and 
>>> it's actively developed. We've been running it for years, along with 
>>> the SaneSecurity signatures and it's been working well for us. If 
>>> there's a better alternative, I'd be interested in learning about it.
>> For the record, I too am using Clam (Clamwin, actually) as the inline 
>> email scanner for our MTA but thats only because we have subscribed 
>> to SaneSignatures (a money donation well worth it). Without Sane the 
>> clam default sigs are a joke (sometimes taking MONTHS to appear after 
>> the threat release, sometimes not even there for years later.  Ive 
>> proven, all of these points, with evidence, in the past).  Sane sigs, 
>> however, made the solution better if not the BEST compared to ALL 
>> OTHER commercial releases for trapping Zero-hour threat (they really 
>> put the 'zero hour' in to "zero hour" unlike other AV providers 
>> taking 'many hours' (sometimes even "a day or two") to respond with 
>> their "zero hour" signatures.
>> The one lesson I did learn though was never to automatically 
>> quarantine or delete 'infected' files (put it in REPORT ONLY scan 
>> mode).  Historically Clam sigs had far too many False Positives which 
>> famously culminated in disabling complete systems earlier this year 
>> (windows specifically) because they deleted system DLL files and 
>> other genuine programs - even its own Clam program! (Admittedly, 
>> since March, the rate of FP's seem to have been reduced.  Whether 
>> thats because of the new signature format or what I dont know).
> Several reasons.  Partly because of your concerns which brought things 
> to our attention.  False Positive reports are important!

Positive responses to peoples concerns are always worthy of recognition 
and credit where credit is due.  Thank you for addressing them. Nice to 

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