An FTP Trojan is a special type of Trojan allowing the attacker to access a machine using the FTP Protocol. Generally, a Trojan is a type of virus entering a system in an undetected manner and accessing all confidential data, thereby causing trouble by compromising or exposing data. One of the ways a Trojan can manifest itself is in the form of a genuine program performing malicious functions.
An FTP Trojan installs an FTP server on the victim’s machine allowing the attacker to gain access to sensitive data through the FTP Protocol. The Trojan opens port 21 and makes it accessible to the attacker or a group of individuals. Some password attacks can also be employed where only the attacker gains access to the system. The system tries to download and upload files from the victim system. The types of information affected include:
Securing a Computer Against Trojan AttackAnti-virus gateway protection can be employed to detect Trojans incoming through HTTP, email or FTP. It is recommended to use multiple virus engines to ensure that different types of Trojans are easily recognized and dealt with. A single virus engine can never recognize all Trojans. The following are some steps to prevent or reduce the presence of Trojans:
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