From 2-spyware.com
Presenoker virus is the threat that has various detection names associated with the malware but can be set to perform different tasks from adware-type symptoms to info-stealing and spying. In more general terms, this is a riskware that can be a potentially unwanted program or even fall into the malware subtype, depending on the particular payload. People[1] speculate that this is a false positive because the detection shows up out of nowhere and raises too many questions about the security state of the machine.