Hellen, Blaster worm comes on port 135. Define a new service netbios_135 SP:1024:65535 DP 135. After this, make a new packet filter rule: From:Any Service: netbios_135 TO: Your_Internet_Interface ACTION: DROP. Thats enough for the blaster, but it is not bad to block all netbios ports to you outside Interface. Cheers
Hellen, Blaster worm comes on port 135. Define a new service netbios_135 SP:1024:65535 DP 135. After this, make a new packet filter rule: From:Any Service: netbios_135 TO: Your_Internet_Interface ACTION: DROP. Thats enough for the blaster, but it is not bad to block all netbios ports to you outside Interface. Cheers