Antivirus Plus is a new rogue "security product".

Antivirus Plus infects computers with help of trojans. The trojans are usually downloaded accidentally together with video codecs or software installs from malicious websites or downloads from p2p networks. AntivirusPlus+ is also advertised on fraudulent websites and people may download it voluntarily. The means of Antivirus Plus distribution reveals dubious nature of the software; however, it uses other misleading tactics to convince people that it is a reputable tool.
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http://www.2-spyware.com/remove-antivirus-plus.html