Pahatia is a worm that spreads through mapped network drives. Once executed, the parasite secretly installs itself to the system. Then it runs a payload. The worm blocks the Search and Run functions of the Windows operating system, and disables essential system tools including the Task Manager, the Registry Editor and the Command Prompt. Pahatia also hides file extensions and creates numerous infected files in local folders. Furthermore, the parasite may restart the compromised computer if it detects that some security-related programs are running. Pahatia runs on every Windows startup.