Spyster 1.0.19 is a fake threat displayed by the corrupt anti-spyware SpyGuarder 2.1. It’s goal is to mislead the user into believing there are threats on the system and that SpyGuarder’s "licensed version" is needed in order to dispose of the problem. The message displayed looks like this: “WARNING!!! Scan resultsSecurity Center Help protect your PCFiles ... (via)