Antivirus 2009 is a dangerous rogue, as it can execute malicious actions that could severely damage a user's computer unless the rogue is removed upon immediate detection. Like many other rogues, it attempts to get its victims' money as they give up their personal information (including credit card details) to cyber criminals (which can lead to identity theft).
When installed, it runs a fake scan. Somewhere in the scan, it displays a fake Blue Screen of Death. It also tells the user they have malware that they don't have.