Watcher

Watcher is an Internet worm that mostly propagates via e-mail attachments, but also may corrupt your computer system through some networks or vulnerable programs. Watcher is a commercial worm application, which uses a computer's webcam to stealthily control the targeted user. Watcher is known to hide itself as an Adobe flash player update and is installed on the computer via trojan infections. Watcher will bombard your desktop with fabricated security alerts declaring that your computer is seriously corrupted or under attack by a computer virus.