Imav

Imav is a worm that spreads through ICQ instant messages containing links to copies of the worm. Once the user follows such a link, Imav shows an image and installs itself to the computer. The worm disables essential services of installed antiviruses, firewalls and other security-related software, corrupts such software installations and removes related files. Imav lowers security settings by preventing installed antiviruses from running on computer startup. The spyware also blocks access to security-related Internet resources. It may download from the Internet and execute arbitrary files. Imav automatically runs on every Windows startup.