On or about 10/1/2009 1:02 PM, Jordon typed the following:
> Mark Hansen wrote:
>> On 09/30/09 15:10, Ray_Net wrote:
>>> jnmayer wrote:
>>>> Hi!
>>>>
>>>> I'm helping a friend of mine. Until now he was using the old mozilla
>>>> suite... (argh!). I just installed Seamonkey 1.1.18 and have some
>>>> little problems when I'm sending mails with attachements. Also
>>>> installed on this computer is the latest GData Antivirus software
>>>> which scans outgoing mails.
>>>>
>>>> So now when I send a mail with a large attachement, seamonkey takes
>>>> some time sending the mail. But in the end the mail is not sent and I
>>>> get an error message (smtp server error). When I turn off the email
>>>> check in GData Antivirus everything works just fine.
>>>>
>>>> My friend is a little bit paranoid about computer viruses and wants to
>>>> ckeck outgoing mails. So what can be done to solve this problem? Is it
>>>> a known problem? As I said before, he was using the old mozilla which
>>>> did not have this problem at all.
>>> You said:
>>> > the old mozilla which
>>> > did not have this problem at all.
>>> Perhaps that GData Antivirus was not able to check an outgoing mail
>>> whne sent by the "old mozilla" ...
>>>
>>> Anyway, stop checking what's outgoing ... just check the inputs ...
>>> If you don't have an infected file reaching your computer, you cannot
>>> send one.
>>
>> Are you so sure?
>>
>> Is it not possible that his machine could have a Trojan of some sort
>> which has evaded detection by his virus scanner software, which may
>> now infect files *after* they've been copied to his machine?
>>
>> I've seen this happen. This is one of the reasons why some virus
>> scanners check outgoing e-mail messages.
>>
>> I realize it's easy to assume that virus checker software is always 100%
>> accurate and will find everything, but sadly this just isn't the case.
>> It's always a matter of percentages. The more you do, the better the
>> chance is that you'll evade the intruder or stop the spread of it.
>
> You're saying that a trojan can slip by undetected and infect
> other files which do get detected, by the same anti-virus program?
>
> I've never heard of such a thing, but I'm no expert. I'll ask
> around.
>
Example:
My virus data base was upgraded at 2000 yesterday. I received a new
virus this morning at 0800 (one that was not in the data base). My
scheduled update is at 2000 to day. In the meantime I do not know that
I have a virus. I will not know of the infection until I send an e-mail
after 2000 today when my outgoing mail is checked for a virus. A lot
can happen in less than 24 hours.
--
Ed
"Thank you for pressing the self destruct button."
-Computer [aboard Mega-Maid] in "Space Balls"
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