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Short for Global Threat bot, a GTbot is a renamed mIRC client (usually temp.exe) running in stealth mode. It uses the HideWindow program to enable it to run stealth, and can contain any number of Mirc bot scripts. This Trojan is usually downloaded by users on IRC networks when they are tricked into thinking it is a cleaner utility program.  Once installed the Trojan launches the stealth mIRC and joins a channel on an IRC network and awaits commands of the bot master. These bots are one of the key instruments in launching DDOS attacks to users on IRC. [Source: Nohack Project]

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