yeh i've removed it from 4 machines now, problem is its an adaptive program so what works on one may not work on all. (its a smart little bugger)
as a rough guide: <advanced users>
start computer in safe mode, with admin rights,
stop all related processes. (shouldnt be any but always worth checking)
Search for and delete any programs named AntiVirusPro, Antivirus Pro (2008/2009) AVPro, AntiVirus (2008/2009) Pro or derivitives
regedit and del following:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\”Antivirus” = “%ProgramFiles%\Antivirus 2008 Pro\Antvrs.exe”
then run MalwareBytes, AVG, and Spybot as a minimum, also anything else you have in your arsenal. Some people like Spyhunter and its good, but costs and i've only had a 50% sucess rate with it.
Anything after that can vary anywhere between IE hijack and unnasigned string arg problems (or one sweet little version that adds VIRUS ALERT!!! beside your system clock [always beware of anything with 3 exclamation marks!!!])
More than that requires a system specific log and a days play.
just found this release from micro$oft:
Microsoft claims that December's version of the Malicious Software Removal Tool (MSRT) -- the free utility included in Windows Update every month -- specifically targeted "Antivirus 2009." According to Microsoft, MSRT removed the rogue application from over 394,000 PCs in the first nine days after it was released on December 9.
Last month Microsoft claimed it purged programs called "Advanced Antivirus," "Ultimate Antivirus 2008," and "XPert Antivirus" from almost a million PCs. This month, Microsoft targeted the Win32/FakeXPA family (including Win32/Yektel and Win32/FakeXPA) which include fake security software called "Antivirus XP," "AntivirusXP 2008," and "Antivirus 2009." (Source: technet.com)
so theres hope for it yet, should be pointed out ths wont remove all versions of the program but its a start.