ClamScan Denial of Service attack

[Neil Wilson]

Hi guys,

I've just had quite a serious problem with one of my clients which seemed to have been 
caused by Clamscan which rejected nearly all emails as "MailScanner[30767]: Virus Scanning: 
Denial Of Service attack detected!"

It looks like it did this because we're using "clamav" as our virus scanner, and clamscan 
was killing the system rescources.

The server is running "ClamAV 0.90.3/3691/Wed Jul 18 08:04:43 2007" which came with the 
Clam-SA-easy installation package.

I know the latest MailScanner has full support for clamd, and it appears to work fine, but 
we have a lot of servers running with the same config, so to upgrade all of them to the 
latest MS+Clam will take forever.

Does the latest stable release of clam correct the problem with using clamav as our virus 
scanner with MS, can we just upgrade Clam on all our servers or do we have to upgrade all of 
these servers to the latest MS+Clam etc?

Thanks,

Any help will be greatly appreciated.

Regards.

Neil

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