I will talk about it, but not in detail.
Basically, on Linux/Unix servers, now Mac OS X, and any system for that matter... you have ports available on IP addresses... (this is basic for the expert)...
The IP address of 208.34.56.2 is ONE address. That one address can have say, 65000 ports available to it. For example... Telnet runs on port 23, Web (like this website) runs on port 80, SMTP on port 25, etc. These are the standard ports... and you can run these same things on other ports on that one IP address, but you have to specify another port other than the standard when you connect.
Many times, security holes are discovered in the one of MANY applications that run on various ports on your server. Once those are discovered and published, most companies that publish the software are quick to bring out patches... and if you are on top of it, you will update those as quickly as they are release, and you minimize your ability to be hacked.
However, what happens is that you sometimes forget your system is RUNNING things that you really have never messed with or even know anything about it. It was a default install for example.
Well, apparently, one of the applications on our server, had a security hole in it... and was fixed months ago, but we never realized it... and never fixed the patch. Using scripts, this individual, was able to gain root access to the box and setup easy access points on other non-standard ports.
Sometimes individuals who break the law by entering computer systems through these holes do bad things, others do what seem to be innocent although are still just as bad... but aren't as hard on the sys admin, as others are.
Once into a system, its pretty much all yours to do as you please... and this individual chose to change the default html page on our sites with their own "hacked" version, and that was pretty much it. A random install of a IRC server, other things... not a big deal, but still, not fun either... at least for me.
Attempts to use the same security hole where made all weekend, and the individual made 2 successful attempts (thus the 2 hack messages on Saturday) and tried numerous times unsuccessfully on Sunday... others also did some usual port scanning (probably after reading this message). The focus of the "hacking" if you wish to call it that, seemed to be around macosx.com, so I imagine whoever was doing this, has read or is reading these threads.
Sunday evening... we finally found the hole and patched it (we think) and safe for now... but one never knows what hole will be discovered next.
Its a game of cat and mouse. In the 5 years I have been running Linux internet servers, the increase in attempted hacking has increased significantly over the past 6 months. I don't call these individuals "hackers" because they really aren't. Most of these individuals are teens, who are curious about programs that "hackers" write... and the run these scripts to see what type of fun they can have. Most "hacking" from these individuals is in their eyes harmless, and having a little bit of fun.
The problem with this thinking... is that to God, a sin is a sin, if you kill someone, that is just as bad as stealing bubble gum from the local gas station. Breaking into a computer, is just as bad, whether you break in to steal company information, or do what seems to be a "harmless" replace of a web page. Both are equal under the law... and should fear... because, as with any successful hack into our box... we do call law enforcement officials... and will seek after these individuals.
The game of cat and mouse stops when line of the law is crossed... breaking and entering, whether into a house or a business... is against the law.... so is breaking and entering into computers.
Just because you walk by a house and the side door is wide open, doesn't give you the right to walk into it, or take things from it. It just makes it easier to do so.
Admin