Mocbot is an IRC bot that can spread using a vulnerability in Windows Plug and Play service (MS05-039).
Note: IRCBot.ST is also known as Mocbot. If you are directed to this description as of August 13, 2006, please also see the description for IRCBot.ST.
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The bot's file is a PE executable, 7846 bytes long, packed with MEW file compressor. When the bot's file is started, it copies itself as 'wudpcom.exe' file to Windows System folder and then creates a service with following attributes:
When the bot is active, it connects to an IRC server, joins a particular channel, and acts as a bot there. The following IRC servers are used by the bot:
The bot joins to a password-protected IRC channel where the hacker can send commands to the bots in order to control infected computers. Several tasks can be performed, including the following:
The bot scans for random IP addresses and exploits a vulnerability in the Windows Plug and Play Service (MS05-039). Info on this PnP vulnerability is available here: https://www.microsoft.com/technet/security/Bulletin/MS05-039.mspx
The vulnerability can be exploited via 139/TCP and 445/TCP.
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