What other softwares have u installed on the exchange server, any drivers.. scanners.. printers anything at all...????. Get a sniffer running on your network.. it will tell you more information about the traffic... apart from the port number and the ip address of the destination. Syed Muqeemuddin Network Administrator Saudi International Petrochemical Company Al-Khobar; Kingdom of Saudi Arabia Tel: +9663-801-0111 Extn-281 -----Original Message----- From: John Tolmachoff (Lists) [mailto:johnlist@xxxxxxxxxxxxxxxxxxx] Sent: Tuesday, August 05, 2003 9:16 AM To: [ExchangeList] Subject: [exchangelist] RE: Trojan or something ? http://www.MSExchange.org/ > My Exchange 5.5 Server doing some illegal activities. Firewall log shows > that it tries to connect to some unknown Private Class C IP (While Our > network is using Private Class A IP addresses) and IP address 3.0.0.2 (none > of our node). Destination port is 4939, 4940, 4561, 1519 and 1528. Is this > normal or some kind of trojan ? Run, do not walk, to your nearest virus scanner and spyware scanner and scan the system. It does sound suspious. John Tolmachoff MCSE CSSA Engineer/Consultant eServices For You www.eservicesforyou.com ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: smuqeem@xxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')