[Mimedefang] patch to add blocking of encrypted email via uv scan

Kelson Vibber kelson at speed.net
Mon Dec 8 20:07:02 EST 2003


At 04:32 PM 12/8/2003, Matthew.van.Eerde at hbinc.com wrote:
>My question then is *how* does clamscan recognize the virus???

Good question.  I just ran the same test, and clamscan *didn't* detect 
it.  (Frankly, I didn't expect it to, but I figured I'd try anyway.)

Luke, have you tried opening the file to see if it requires a password to 
open?  If not, it probably isn't really encrypted.  If so, I have no idea 
how clam was able to spot the encrypted content.

(Of course, since encrypted zip files require a password in order to open 
them, so it takes a little extra social engineering to make it execute.)


Kelson Vibber
SpeedGate Communications <www.speed.net> 




More information about the MIMEDefang mailing list