Not detecting some instances of viruses

Scott Silva ssilva at
Sat Nov 4 19:22:07 GMT 2006

Martin Hepworth spake the following on 11/4/2006 8:04 AM:
> Alex Neuman wrote:
>> Jon Bates wrote:
>>> I'm having trouble whereby only SOME instances of the same virus are
>>> being
>>> identified by ClamAV.
>>> The virus is exactly the same type every time, but only some get
>>> detected -
>>> the rest are sent on to the user!
>>> There is no pattern that I can see - Zip files (containing infected
>>> exe),
>>> and plain exe files have been allowed through.
>>> I've subsequently scanned the users mailbox on the server using
>>> clamscan,
>>> and it DOES detect the email! For some reason, when it is scanned
>>> when the
>>> message is received, it's not detected.
>>> Any help would be appreciated!
>>> - Jon Bates
>> You shouldn't be allowing EXEs in the first place, I think.
> if you work with Windows developers then I'm afraid you have to! We do
> this selectively of course!
Even Windows developers can learn to zip up an exe!


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