FireDaemon.exe lets you run programs as a service, NC.exe is NetCat and is useful for all sorts of stuff (like shoveling a shell) and there are quite a few other useful tools for a cracker there. Looks like someone has set up a backdoor and some tools on your box, maybe with a kit like Backdoor.IRC.Zcrew (http://securityresponse.symantec.com...c.zcrew.b.html ). I would recommend nuking and rebuilding your computer and changing all the passwords you normally use.