It logs keystrokes and accepts control commands, such as launching denial of service attacks against websites.

Windows 2003/XP/2000/NT/ME/98/95

Spybot.ACH is a worm that spreads through peer-to-peer (P2P) file sharing programs, such as KaZaA.

Spybot.ACH logs keystrokes and stores them in text files. These text files are then sent via IRC.

In addition, Spybot.ACH accepts remote control commands, such as launching denial of service (DoS) attacks against websites.

Spybot.ACH is difficult to recognize, as it does not display any messages or warnings that indicate it has reached the computer.