Fake security alerts (mimicking Microsoft or well known AntiVirus)
Rogue software like System Fix, Registry Cleaners
Hide your shortcuts, files and folders
Unable to launch programs or install new programs
Malware often disables access to Task Manager
Many services stoped
Other signs of infection include: new desktop icons; new wallpaper, or having your default homepage redirected to another site. To learn more go to Fake Security or Rogue Software