What Does Wiretap Trojan Mean?

A wiretap Trojan is a type of Trojan virus which records VoIP calls and IM conversations. In the case of VoIP calls such as Skype, the audio data is captured before it can be encrypted and sent over the Internet, and then saved as an MP3 file locally on the infected computer. The messages from an IM application can also be saved to a kind of text file before being encrypted and sent online. The Trojan includes a backdoor to allow the hacker to retrieve the saved files or the Trojan can simply send it to an anonymous address.

Techopedia Explains Wiretap Trojan

Wiretap Trojans are infamous for being used by hackers and government authorities alike since wiretapping, according to government authorities, helps ensure national safety by providing clear intelligence that they can act on immediately if the need calls for it. A wiretap Trojan is like any other Trojan in terms of the way it infects and runs on a host computer, the only difference is its function.