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Trojan programs improve attack methods Print E-mail
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Source: vnunet - Posted by Jen Olson   
Intrusion Detection Security watchers have warned that Trojan programs, feared for their ability to compromise a network and go unnoticed, are getting sneakier about sending data out of the network. Typically, Trojans sit on a compromised machine and wait for incoming connections to deliver instructions.. . . Security watchers have warned that Trojan programs, feared for their ability to compromise a network and go unnoticed, are getting sneakier about sending data out of the network. Typically, Trojans sit on a compromised machine and wait for incoming connections to deliver instructions.

But this leaves a flaw in the Trojan's functionality: all unnecessary ports can be blocked so that incoming connections are dropped and the Trojan is rendered useless.

But Michael DeMaria, of Syracuse University Labs, said that a new method of Trojan programming is being used to get around port blocking and intrusion detection, by making an outbound connection to an already compromised machine using legitimate network traffic.

Read this full article at vnunet

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