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I have a client who is running Mac OS-X Leopard and he has come down with with IRC bot automatically trying to join &quot;Assault&quot; chatrooms. &nbsp;The port that the IRC bot is running on is port 6667. &nbsp;Possibly the the IRC login was called &quot;Darwin or some variation of it. &nbsp;Could you advise on how to remove it? &nbsp;
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I have a client who is running Mac OS-X Leopard and he has come down with with IRC bot automatically trying to join "Assault" chatrooms.  The port that the IRC bot is running on is port 6667.  Possibly the the IRC login was called "Darwin or some variation of it.  Could you advise on how to remove it?  

IRT bot found on MAC OS-X Leopard port 6667

Networking software modules are interfaced with a framework implemented on the machine's operating system that implements the networking functionality of the operating system. The best known frameworks are the TCP/IP model and the OSI model. Systems typically do not use a single protocol to handle a transmission. Instead they use a set of cooperating protocols, sometimes called a protocol family or protocol suite.[9] Some of the best known protocol suites include: IPX/SPX, X.25, AX.25, AppleTalk and TCP/IP. Other protocols indirectly related to networking include the hypertext transfer protocol (HTTP) and its related technologies, Dynamic Host Configuration Protocol (DHCP), Domain Name Server (DNS) and other Internet protocols.

Networking Protocols

Apple's early computers ran on a variety of operating systems, including a Pascal version and one based on CP/M, before releasing its ProDOS with the advent of its 16-bit computer. With the release of the Lisa, which had its own OS, Apple and computing entered the graphical age; it was followed by the Macintosh, which offered a series of "System" operating systems. Other Mac operating systems included PowerPC until Apple acquired NeXT and folded it into the Mac OS. Current operating systems for Apple devices are Mac OS-X and iOS.

Apple OS

Network security consists of the policies adopted to prevent and monitor authorized access, misuse, modification, or denial of a computer network and network-accessible resources. Network security involves the authorization of access to data in a network, and covers a variety of computer networks; conducting transactions and communications among businesses, government agencies and individuals. Networks can be private, such as within a company, and others which might be open to public access.