FakeAV (Fake AntiVirus), also known as Rogues, or ScareWare, is malware that displays false alert messages about a threat that doesn’t actually exist. These alerts often prompt users to visit a website where they are asked to pay for these non-existent threats to be cleaned up. The FakeAV will continue to send these intrusive “alerts” until a payment is made. To learn more about these dangerous and innovative threats and how you can protect your business against them, please enjoy this insightful paper from Sophos Inc.

https://secure.sophos.com/sophos/docs/eng/papers/sophos-what-is-fakeav-wpna.pdf