Password protected zip files

Is there any way that IMON can do something with pass protected zip file attatchments coming in via email? Tt sees them and gives a message in the body of the email, but still lets them through, even though they contain a virus. It does not pop up a warning nor give the option to block/remove them.
Can this be done?

Thanks.

 

Already been discussed, look here

http://www.wilderssecurity.com/showthread.php?t=23933

 

I have read that thread and i see no clear answer. Just some arguing and opinions. Does anyone have an answer?

 

As stated in that thread, Nod can´t do anything right now to actively stop password protected viruses. Just get them when the user opens the archive.