BleepingComputer.com: Rogue-Turning-Retro Virus

It's fairly well known that different types of malware can "kill" antivirus products in various ways. These kinds of malware are known as "retro viruses." In order to step things up a notch, some malware is utilizing legitimate software uninstallers to trick users into uninstalling legitimate security products. The widely distributed rogue antivirus known as CoreGuard Antivirus has released a new clone called AnVi Antivirus, which is utilizing a social engineering technique to trick users into uninstalling many well known antivirus products, including solutions by Symantec, Microsoft, AVG, Spyware Doctor, and Zone Labs.