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Check For Dos, Check to see if you are infected.

Check For Dos, Check to see if you are infected. - When you...

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When you first turn on you computer (BEFORE DIALING INTO YOUR ISP), open a MS-DOS Prompt window (start/programs MS-DOS Prompt). Then type netstat -arn and press the Enter key. Your screen should display the following (without the dotted lines which I added for clarification). ----------------------------------------------------------------------------- Active Routes: Network Address Netmask Gateway Address Interface Metric 127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1 255.255.255.255 255.255.255.255 255.255.255.255 0.0.0.0 1 Route Table Active Connections Proto Local Address Foreign Address State -------------------------------------------------------------------------------- If you see anything else, there might be a problem (more on that later). Now dial into your ISP, once you are connected; go back to the MS-DOS Prompt and run the same command as before netstat -arn, this time it will look similar to the following (without dotted lines). ----------------------------------------------------------------------------------- -- Active Routes: Network Address Netmask Gateway Address Interface Metric 0.0.0.0 0.0.0.0 216.1.104.70 216.1.104.70 1 127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1 216.1.104.0 255.255.255.0 216.1.104.70 216.1.104.70 1 216.1.104.70 255.255.255.255 127.0.0.1 127.0.0.1 1 216.1.104.255 255.255.255.255 216.1.104.70 216.1.104.70 1 224.0.0.0 224.0.0.0 216.1.104.70 216.1.104.70 1 255.255.255.255 255.255.255.255 216.1.104.70 216.1.104.70 1 Route Table Active Connections Proto Local Address Foreign Address State TCP 0.0.0.0:0 0.0.0.0:0 LISTENING TCP 216.1.104.70:137 0.0.0.0:0 LISTENING TCP 216.1.104.70:138 0.0.0.0:0 LISTENING TCP 216.1.104.70:139 0.0.0.0:0 LISTENING UDP 216.1.104.70:137 *:* -------------------------------------------------------------------------------- What you are seeing in the first section (Active Routes) under the heading of Network Address are some additional lines. The only ones that should be there
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  • Fall '08
  • Staff
  • IP address, Classless Inter-Domain Routing, Network address translation, internet architecture, Address Netmask Gateway, Netmask Gateway Address

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