Some learning and Thinking on Web shell exemption -- Taking PHP as an example

preface When using webshell, killing free is something to consider. To put it bluntly, my webshell has to be usable! Therefore, this article does a webshell free learning, which is mainly a sentence of php 1, About webshell The so-called web shell is to send a file written by malicious code (i.e. shell) to the server. The client connects ...

Posted by sholtzrevtek on Sun, 24 Oct 2021 05:10:31 +0200

DVWA platform vulnerability testing and source code analysis SQL injection

DVWA platform is an effective way for beginners of network security to understand the ten vulnerabilities. This platform collects the ten most common vulnerabilities threatening network security, and provides a shooting range experimental environment for beginners. We can use this platform to carry out various attack experiments, so as to enric ...

Posted by cheatboy00 on Sat, 09 Oct 2021 05:59:32 +0200

HCIE first day operation

1. Summary of the day Low end equipment often solves multi-function, and medium and high-end equipment has special functions The upper connection is mainly optical fiber, and the lower connection is photoelectric The essence of down connection is to increase the port density and long distance The higher up, the better the performance of the eq ...

Posted by leewad on Fri, 24 Sep 2021 17:42:13 +0200

2021 Great Wall Cup _MISC_ "Are you flag cooked"_Reproduction

Direct decompression of "flag.rar" found that there was a password, and the 4-6-bit password exploded unsuccessfully, indicating that the password was obtained from two other PNG pictures. Directly take all pictures out of binwalk and break them down (binwalk-e 1.png), (binwalk-e 2.png) Get a "password.xls" file and a &q ...

Posted by zechdc on Tue, 21 Sep 2021 18:34:07 +0200