thanks guys, i think i just had solve the trojan horse problem, because before these i had allowed every service to go out from internal network, but now i had blocked all services and just allow few to go out. Work fine now.
thanks guys, i think i just had solve the trojan horse problem, because before these i had allowed every service to go out from internal network, but now i had blocked all services and just allow few to go out. Work fine now.