The RPC Doom Virus, also known as the "Doom" virus, is a notorious computer worm that exploits a vulnerability in Microsoft Windows systems, particularly through the Remote Procedure Call (RPC) service. It became widely known in 2003 when it caused significant disruptions by allowing unauthorized access and control over infected machines. The virus spreads rapidly across networks, leading to system crashes and data loss. To protect against such threats, it's crucial to keep your operating system updated, use a robust firewall, and employ antivirus software. Regular backups are also essential to mitigate potential damage from such malware.