Discover backdoor malware, include the articles, news, trends, analysis and practical advice about backdoor malware on alibabacloud.com
Part 1: Background Nowadays, there are many popular tools for Post-Trojan Horse categories on the Internet, but there are not many tools that can be called as excellent products. Most new They are still using winshell, glacier, or Radmin "Remote Management Software" to replace Backdoor programs. No Fortunately, they do not conform to the standard of a real backdoor and are very easy to be managed by servers
2010-01-15 10:32 Chinaitlab Chinaitlabfont Size:T | T In this article, we'll look at a variety of backdoor technologies, especially Linux's loadable kernel modules (LKM). We will find that the lkm backdoor is more complex, more powerful, and less discoverable than the traditional backdoor procedures. Knowing this, we can make our own lkm-based rootkit program, m
For a long time, we all think that a trojan is an executable file ending with an exe, as long as it does not run a file suffixed with an exe. However, if Trojans are easily identified, they cannot be called Trojans. In fact, many Trojans are not suffixed with exe. For example, the famous backdoor Trojan tool bits is a dll backdoor. The whole backdoor program has
All along, we think Trojan is the end of EXE executable file, as long as not run exe as a suffix of the file can be. But if the Trojan is so easy to distinguish, it can not be called a Trojan. In fact, there are many Trojans are not the suffix of EXE, such as the famous backdoor Trojan tool bits, is a DLL back door, the entire backdoor program has only one DLL file, but can achieve very scary effect. So how
This article will introduce a very short code, but also a very covert backdoor Trojan, so that everyone in the detection program can avoid being hung Trojan. The contents of the file are as follows: Many comments are inserted into the code, and the server's detection procedure is difficult to detect if it is not rigorous. After the comment is removed, the code is as follows: The actual code that was actually executed was: the back door was used to exe
In a sense, the server is being attacked is inevitable, even controlled is understandable. But it is absolutely intolerable that the server is implanted into the backdoor, the attacker forcefully, and the manager goes unaware. This article will be the current more popular backdoor technology analysis, the enemy can eliminate the back door.1. Magnifying Glass back doorMagnifier (Magnify.exe) is a small tool
The ping-based ICMP backdoor that was inadvertently seen while searching. So to the author's GitHub to see, incredibly is engraved, in order to level, can only endure to see, the student dog hurt. Fortunately it's easier to understand, as the introduction says: "PRISM is a user space stealth reverse shell backdoor, written in pure C."Project address:https://github.com/andreafabrizi/prismPrism has only two m
, status, IP, etc., on the attack this has a great reference value, however, must remember to clear the log.(3) rootkit tool: LrkThe rootkit appeared in the early 1990s as a tool for attackers to hide their traces and retain root access. In general, attackers gain access to the system through remote attacks or password guessing. The attacker would then install a rootkit on the compromised host, and then he would check the system through a rootkit's backdoor
This article describes a backdoor that we found in the Joomla plug-in that has a (wei) Fun (suo. Although it seems a bit unintuitive, but because the code is well organized, we didn't realize it contained a backdoor at first. The plug-in code is as follows: At first glance, there is nothing special, no code encryption, no code obfuscation, and no comments, that is, the normal Joomla plug-in code. However
This backdoor is absolutely novel, and is integrated into a small FTP server. it can quickly transfer a large number of reliable FTP files without losing the powerful control functions of the backdoor. it not only maintains a slim body, but also has good stealth and strong stability. this backdoor does not need to use a specific client program at all times, anywh
Nameless Backdoor is a new type of DLL Trojan, this Trojan was born not long, but is definitely a very potential Trinidad colt. Speaking of the predecessor of Nameless backdoor, I had to mention the bits and Wineggdrop portless of Yung. These two well-known Trojan horse once all scenery, can be said to be the veteran of the Trojan Horse. The nameless Backdoor is
Recently, qq and sina North America have been attacked, and many of the attacked hosts are bot-what is a meat machine? It is the server where the backdoor program is placed. Let's see how a server is buried. There are endless crises and traps hidden in the vast network of users in the digital world quietly. One of the most famous traps is the "backdoor ". Content of this articlePrinciple AnalysisNecessary C
Backdoor technology and LinuxLKMRootkit-Linux general technology-Linux programming and kernel information. The following is a detailed description. Introduction: In this article, we will see a variety of backdoor technologies, especially Linux Kernel Modules (LKM ). We will find that LKM backdoors are more complex and powerful than traditional backdoors, making them more difficult to detect. After knowing t
At the beginning of 2004, IRC backdoor virus began to appear on the global network on a large scale. On the one hand, there is a potential risk of leaking local information, on the other hand, the virus appears in the local area network congestion, affecting the normal work, resulting in losses. At the same time, because the source of the virus is open, anyone to get the source code after a little modification can be compiled to create a new virus, p
A lot of people have recently shared a few words about a dog's shield, but there are ways to construct some dynamic functions, such as $_get[' func ' ($_request[' pass '). Same, but this method, although the dog shield may not be visible, but the human eye is actually very easy to find such a backdoor. So, I'll share some words that don't require dynamic functions, no eval, no sensitive functions, no kill, no interception. 0x00 Preface A lot of friend
Group Policy spoofing, the most concealed Backdoor The Group Policy backdoor is more concealed. Adding the corresponding key values to the table is a common method of Trojan horse running when the system starts. In fact, this function can also be implemented in the most policy. In addition, it can also perform some operations when the system is shut down. This is achieved through the "script startup/shutdow
Article Title: backdoor technology and rootkit tool-Knark Analysis and Prevention (1 ). Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Abstract: This article discusses some backdoor technologies that are often used after successful intrusion by attackers in Linux, and a
Configuration file of the super server daemon inetd. Generally, the system administrator does not check the file frequently. Therefore, this is a good place to place a "backdoor. :) So how to build the best backdoor here? Of course it is remote. In this way, you do not need a local account to become the root user. First, let's take a look at the basic knowledge in this regard: the inetd process is responsib
Webshell or back door or something, you can use the hidden folders and files.Method OneFor example, create a name at the beginning of the band. Webshell or folders, by default, will not be displayed, the browser when access to add a few access to the line. (View method:ls-a)Touch. webshell.php create a file named. webshell.phpmkdir. backdoor/create a folder named. BackdoorThe ultimate approachIn the case of the administrator drinking too much or brai
Back door principle: Under Windows 2000/xp/vista, press the SHIFT key 5 times to open the glue, run the Sethc.exe, and open it in the login interface. This is reminiscent of Windows screensaver, after replacing the program with Cmd.exe, you can open the shell. Xp: Eject the installation source CD (or rename the installation directory on your hard disk) CD%widnir%\system32\dllcache ren sethc.exe *.ex~ CD%widnir%\system32 copy/y Cmd.exe Sethc.exe Vista: takeown/f C:\windows\system32\sethc.exe
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