Kenzero is a virus

Computer virus

A computer virus is a computer program that can replicate itself and spread from one computer to another. The term "virus" is also commonly but erroneously used to refer to other types of malware, including but not limited to adware and spyware programs that do not have the reproductive ability...

 that is spread across Peer to Peer networks and is programmed to monitor the browsing history of victims.

History

The Kenzero virus was first discovered on the 15th of September 2010, but researchers think it went undetected for a few months prior to the initial discovery.

Operations

Kenzero attacks computers that download files through Peer-to-peer

Peer-to-peer

Peer-to-peer computing or networking is a distributed application architecture that partitions tasks or workloads among peers. Peers are equally privileged, equipotent participants in the application...

networks (P2P). Once the file is opened, the virus locates the victim's browsing history and publishes it online. People can then view the file(s).