Antivirus 360 is the new Antivirus 2009 indeed. It is spreading using the same old commodity plugin exploit techniques as AV 2009. Be sure to update any QuickTime Player or Adobe Plugins that you may be running to the latest versions.
A number of web sites are delivering a variety of exploits to get this rogueware on your system. One method of delivery that seems to be very reliable is via a set of malformed pdf files. The malware files exploit various versions of the Adobe pdf reader, delivering download and execute shellcode, calling URLDownloadToFileA on hxxp://svc .ms / xrun.tmp, and Winexec on that download.
This file is a custom packed downloader. After a long delay, it contacts multiple web sites, then pulls down a number of files, including another awful Vundo package that was at the top of hit lists for years.
So please, keep this stuff off of your system. Update all third party plugins on your system.