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 :: Mailing Lists

[ILUG] Amavis

[ILUG] Amavis

Michele Neylon :: Blacknight Solutions michele at blacknightsolutions.com
Thu Mar 4 12:19:27 GMT 2004


> The latest Bagle viruses include zip files which are password protected
> - The mail body includes the password so that uninformed users will use
> this to open the zip, and thus propagate the virus.
>
> Anti-Virus products cannot open the zip due to the fact that it is
> password protected (this is the reason behind the password protection).
>
> Might be worth telling your users to not open any zip files that require
> a password - Most likely this will be bagle.
>

The *simple* solution is to use SA to block the virus by filtering for the
body content. There seem to be about a half dozen variants on the body of
the email, but you can use a couple of regex to trap them and bump the score
up. The only problem is if you are whitelisting certain domains.. Not much
you can do about that one.. However, if you do not have some of the aliases
that it uses simply drop them at the MTA before the AV kicks in, it should
save you a lot of processing overheads.

M



-- 
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