Fake Norton Antivirus is really a trojan horse

Sophos warns of a fake anti-virus products, following the discovery of a malicious Trojan horse that is posing as a free copy of Norton AntiVirus 2008.  Google adverts are being presented to internet users who search for “free antivirus”, leading them to a professional-looking website that claims to offer an anti-virus product for download.

The website attempts to lure visiting computer users into installing a Trojan horse, Troj/FakeAV-AD, which will then present fake security alerts and urge users to purchase a “full version” of the software.

Sophos has produced a video demonstrating the risk to internet users: