HIPPA password protected zip files

Julian Field MailScanner at ecs.soton.ac.uk
Tue Oct 25 18:02:07 IST 2005

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Ed Bruce wrote:

> Information Services wrote:
>> I can also set it to a path with a ruleset.  I would much rather set a
>> path instead of letting password protected zip files come through
>> unchecked.  From reading the MailScanner.conf file, and other posts,
>> it is not a wise idea to allow password protected zip files, but for
>> some clarity, even if you did allow these files, the antivirus
>> programs used in conjunction with mailscanner should still work
>> properly and notice virus related password protected zip's  right?
> No, if by password protected you mean encrypted. There is no way to 
> detect a virus in an encrypted file until its is unencrypted, which MS 
> can't do.

However, what it can do with password-protected zip files is read the 
filenames of the contents of the archive. This means that you can still 
do all the filename.rules.conf rules on the contents of 
password-protected zips. The protection is done on the files within the 
archive, not the archive itself.

>> In either case, what would be the proper format to create a ruleset to
>> allow HIPPA related password protected zip files?
> You have to determine that. I would suggest using the IP address and 
> not a domain.

Definitely safer to use an IP address, the spammers can forge your 
domain name in an email address a whole lot easier than forging the IP 
address the message came from.

- -- 
Julian Field
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