Pushdo Botnet Issue

Hi,

We are having a problem where users are getting undelivered emails. 

The CBL blacklisted us due to spam caused possibly by a DDOS Trojan called "pushdo"

http://cbl.abuseat.org/lookup.cgi?ip=200.7.92.115&.pubmit=Lookup

We are running SEPM version 11, can SEPM v11 detect this Tojan?

Help required urgently.

Thanks