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image Broken LiSP? image
CastleCops
By mrrockford

I got a phone call last night from a German neighbor and he stated, “Mike, my LiSP doesn't work anymore!” I never noticed that he had a lisp and said, “Well that's great! Don't you feel better?” “No not at all.” He said, “Not only is my LiSP broken but my sock is broken also!”

Okay, so now I am really confused. What does a LiSP have to do with a sock? “What are we talking about here? How did they get broken?”, I asked. “Well,” he said, “I downloaded something and then I installed it and couldn't get back online!”

Aha! We were talking computers. “I believe you meant to say that your L – S – P and winsock don't work” I answered. “Thats exactly what I told you!” he yelled, “How do I fix it now” he wanted to know. So I had to tell him what an LSP is and how it works with the winsock.

An LSP (Layered Service Provider) simply put, is a small piece of software used to “direct” TCP/IP traffic. Some malware will insert their own LSP into the winsock to direct your request for a website to another website where more malware can be installed on your machine. Some well known spyware that does this are new.net and webhancer and commonname. As the good LSP is so tied into the Windows OS, improper deinstallation of a “bad” LSP will quite often make it impossible to connect to the internet.

An LSP is a part of the winsock. Winsock, the shortened name for “Windows Socket” is an “application program interface” and what Windows uses to allow communication for network services such as TCP/IP. It also provides a set of building blocks for programmers to write software that will run within the OS version you are using and making it easier for you, the end user, to learn new programs. For example if you use Windows Office you would be able to learn to use OpenOffice as they use the winsock API.

“Great, just super!” said my neighbor, “Now I understand a little bit more about this, but I still don't know how to fix it.” “Why don't you ask in the CastleCops Forums?”, I told him. “They will be more than happy to help you get your LiSP and sock unbroken!”
Posted on Sunday, 16 April 2006 @ 13:44:27 UTC by mrrockford (3976 reads)
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