PHP eval function A word trojan code
This is a common word of PHP Trojan code, through the post Trojan to implement the Trojan, the eval () function to the string according to the PHP code to calculate. The string must be a valid PHP code and must end with a semicolon. If no return statement is called in the code stri
Recently on the Internet a lot of information about the PHP detection of the Trojan horse is basically the same kind of article here I summed up a reliable method from these articlesFirst, from the production principle to analyze the Trojan horse program. This trojan is written in hexadecimal, so we can detect the Trojan
Many friends still do not know the rise of the recent years, "DLL Trojan" why. What is a "DLL"? What's the difference between it and a typical Trojan?
First, from the DLL technology.
To understand the DLL, you have to know what this "DLL" means, so let's go back a few years ago, when the DOS system was on its way. At the time, writing a program was a tedious task, because each program's code is independen
Many friends still do not know what "DLL Trojan" is what dongdong. What the hell is a "DLL"? What is the difference between it and the common Trojan? With these questions, let's start this revealing journey together!
The root of the word from the DLL
To understand what a "DLL" is, you must know what "DLL" means! When it comes to DLLs, it's not just about the long dos era. In the era of DOS, writing progra
Disclaimer: This article only outlines various hidden Trojan techniques.No specific production method
In the past, I thought that as long as files sent by netizens are not casually run, they will not contain viruses or Trojans, but then they will see shock waves and waves spread by exploiting vulnerabilities. In the past, I once thought that web page Trojans would not be available on small websites, but many large websites, including a well-
This article introduces some techniques to introduce the defense of the PHP Trojan attack, through these aspects you can better guard against Trojan horse program.
1, prevent from jumping out of the web directory
First modify httpd.conf, if you only allow your PHP script program to operate in the Web directory, you can also modify the httpd.conf file to restrict the PHP operation path. For example,
Cracked goal: To crack an encrypted ASP Trojan landing password. Because there is no version in the Trojan, specifically do not know what the name of this Trojan.
Break the train of thought: Two kinds, use encrypt cipher to replace cipher text and use cipher text and encrypt algorithm to solve the password.
The former is not really cracked. If you do not get th
BackgroundRecently in the emergency found a Mac on the mining Trojan, the goal is to dig the door, after the visit, the victim users have to install a third-party DMG from the Apple Computer experience (which can be determined a LOL Mac install app will cause the Trojan), Suspected that many third-party DMG on the Internet are carrying related malicious programs.PhenomenonAccording to the user reflects the
F-Secure announced the discovery of two Android platform Trojans, one of which will cheat users in downloading the "Angry Bird Seasons v2.0.0 limited edition". In fact, false downloading is a real scam, they pretend to be able to download genuine free angry birds and other game Words, but in fact they only cheat users and automatically send multiple paid text messages.
The Trojan name is pseudo-Trojan: And
.
Then, decompile Xjad from our jar file, click File-decompile jar-select the generated jar file, and decompile it into the source code folder.
In this step, our cattle are successfully decomposed. The following figure shows how to find the final steak we want ~0x03 caressing Chrysanthemum
After decompilation, we can find that the Trojan horse interacts with the background by calling the c # WebService protocol, and the chrysanthemum IP address is
Comments: Target: crack the encrypted Asp Trojan login password. Because there is no version description in the Trojan, I do not know the name of the Trojan. Solution: Use the encrypted password to replace the password and use the ciphertext and encryption algorithm to reverse the password. The former is not a real attack. If you cannot get the Asp source code, y
Before that, my sister had to install a 360 cloud disk on my computer for work. It was a long time, but today I marked the date: Am, January 1, September 21, 2013, the 360 browser is installed on my computer, and the 360 browser will be re-installed after I restart it. At this time, I once again saw the rogue nature of 360 Trojan Horse companies. I used the trojan 3721 for the last time. I thought it was a
Three techniques to effectively prevent PHP Trojan attacks. As we all know, surfing the Internet must withstand viruses and Trojans to protect our clean surfing environment. Here, we will understand the defense measures for PHP Trojan attacks. as we all know, surfing the network must withstand viruses and Trojans to protect our clean surfing environment. Here, we will learn about the defense measures for PH
"Smart gene" is a domestic trojan, in addition to the General Trojan has the function, its most frightening is its permanent hidden remote host drive function, if the control side chose this function, then the controlled end can be miserable, want to find the drive? Hey, it's not that easy! Server-side file Genueserver.exe, with the HTM file icon, if your system is set to not display the file name extension
Method One, a word trojan
Occasionally get a config, found to be root, and there are phpmyadmin. All right, try it.
Select '
The hint succeeded, but constructs the address to visit, the hint 404, appears not to be successful, should be escapes the questionThen try:
Select '
Import again, prompt success, after the visit found really successful.
Another kind of a word trojan
On the server found many Troja
, windows2003 the above version is suitable for this method.Because the current Trojan or virus are like to reside in the System32 directory, if we use the command to restrict system32 write and Modify permissionsThen they have no way to write it. Look at the order.a commandcacls c:windowssystem32/g administrator:r prohibit modification, write to c:windowssystem32 directorycacls c:windowssystem32/g administrator:f Restore Modify, write C:windowssystem
In Linux we can use the command to search the Trojan file, to the code installation directory to execute the following command
The code is as follows
Copy Code
Find./-iname "*.php" | Xargs grep-h-N "eval" (Base64_decode)
Search out close to 100 results, the result list is very important, Trojans are inside, to a file open to verify whether it is a trojan, if it is, imm
Today, there are a large number of legendary game players in China, and the online virtual equipment transaction is booming. It is not surprising that a good equipment or advanced account has sold thousands of RMB, so a large number of Trojan viruses targeting legend games have emerged. When you run a plug-in containing Trojans or click an Email attachment from a stranger to open a malicious website webpage, the t
Many cainiao who do not know much about security will be helpless after the computer becomes a Trojan. Although many new anti-virus software versions on the market can automatically clear most of the Trojans, they cannot prevent new Trojans. Therefore, the most important thing to do is to know how a trojan works. I believe you have read this article.
Article Then, it will become a master of
Recently has been busy system migration, busy, there is no time to maintain the company's mail server. There are more than 1000 people in the mailbox.Today 11 o'clock in the morning, helpdesk phone me, said exchange above the spam program is not open. I thought it was strange. How could that be? I had a lot of things in hand, let him restart the service to try, restarted, said not yet. A bit of attention. Remote Desktop Board Server A look, then dumbfounded, 2,270 zombie process running. Are all
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