Q: There are many types of Trojans, and some of them are stubborn and cannot be killed. Is there any way to effectively prevent Trojans and clear them?
A:
What is a trojan?
What you call a Trojan is a remote control program that can lurks in the victim's computer and secretly opens one or more data transmission channels. Generally, it consists of two parts: clients and servers are also called control termin
Program | trojan
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A Trojan horse is a program that has certain features or is just fun. But it usually does something unexpected, such as stealing passwords or files.
How a Trojan Horse works
The General Trojan program includes the client and the service end two programs, in which the client is used for the attacker remote control implanted
QQ is used by countless people every day. People often focus on attacks such as QQ tail viruses and QQ Trojans, however, few people have noticed that the QQ group and QQ space we often visit have hidden greater security risks, which are far more dangerous than QQ tail viruses and QQ Trojans. Today, let's take a look at how attackers can mount webpage Trojans in QQ groups and QQ spaces to attack users!
I. Simple Trojan mounting in QQ Group
Hanging webp
Anti-Virus Attack and Defense Research: simple Trojan Analysis and Prevention part1I. preface the development of virus and Trojan Horse technologies today, because they are always complementary, you have me and I have you, so the boundaries between them are often no longer so obvious, each other often uses some of the other's technologies to achieve their own goals, so now many times they are collectively r
/*************************************** ***************Name: trojan dll injection programFunction: Call the system hook to inject the trojan dll into the host thread.Author: Xue FengDate: 2004-6-22Description: Process hiding. This program uses a large number of APIs. For details, refer to msdn.**************************************** **************/
# Include "stdafx. H"# Include # Include ".. // include /
Program | trojan
Introduction to the Trojan Horse
Because this article is to explore the Trojan horse program, so before introducing some of the basic knowledge of Trojan horse in advance. A complete Trojan system consists of hardware part, software part and concrete connect
Hackers to do after the invasion is to upload a trojan back door, in order to be able to upload the Trojan is not found, they will try to do a variety of ways to camouflage. And as the victim, how can we see through camouflage, the system of the Trojan all clear away!
First, file bundle detection
The Trojan Horse bun
If you are a human, you have to compare your mind with your own articles that are hard to get out. At the very least, you have to read the post to show me your feelings? Who else has the confidence to do it? Drop diver!The trojan program tries its best to hide itself by hiding itself in the taskbar. This is the most basic method. As long as you set the Form's Visible attribute to False and ShowInTaskBar to False, the program will not appear in the tas
The trojan program tries its best to hide itself. The main ways are to hide itself in the taskbar. This is the most basic thing if you set the Visible attribute of Form to False and ShowInTaskBar to False, when the program runs, it will not appear in the taskbar. Stealth in Task Manager: setting a program as a "system service" can easily disguise itself. Of course, it will also start quietly, and you certainly won't expect the user to click the "
If we want to implant our Trojan on someone else's computer, we need to disguise ourselves first. Generally, there are two main methods to hide Trojans:1. disguise yourself as a general softwareMany users may have encountered such a situation. On the website, a small program that claimed to be a very interesting one was obtained and executed, but the system reportedInternal error. The program exits. Most people think that the program is not well devel
Rootkit. win32.ressdt. O/Trojan-Downloader.Win32.Agent.mjp Analysis
Original endurer2008-04-10 1st
It is something that Xialu has published on its official website.
Rootkit. win32.ressdt. O/Trojan-Downloader.Win32.AgentHttp://endurer.bokee.com/6681893.htmlHttp://blog.csdn.net/Purpleendurer/archive/2008/04/09/2271747.aspxHttp://blog.sina.com.cn/s/blog_49926d910100926n.html
File Description: D:/test/svcos.ex
Trojan Horse rampant ASP, based on the site of the ASP is always in danger, to make the site security at any time, need our server administrator to do what, how to prevent ASP Trojan? To prevent ASP Trojan, then we need to know its operating principles and mechanisms, the following we look at a piece of code:
Set oscript = Server.CreateObject ("Wscript.Shell") "
A "general-purpose" trojan virus that simultaneously steals users' "QQ", online game accounts, bank passwords, email passwords, and other private information has recently been "raging. This trojan is a pair named Rootkit. win32.Delf. l and the Trojan-PSW.Win32.Delf.eve of the Trojan, because of its stealth ability is s
With the popularization of web, various web pages have become increasingly useful, which also gives hackers a chance. They found that CSS code used to make webpage special effects can also be used to mount Trojans. The irony is that CSS Trojans have evolved from the CSS code used to prevent E Trojans.
CERT lab a nan: A security engineer who has been engaged in virus analysis for many years.
At the beginning, the method of website Trojan Horse mounting
Hackers found that CSS code used to create special webpage effects can also be used to mount Trojans.
With the popularization of web, more and more special web effects are used, which also gives hackers a chance. They found that CSS code used to create special webpage effects can also be used to mount Trojans. The irony is that the CSS Trojan-mounting method actually evolved from the CSS code to prevent E-Trojans.
CERT lab a nan: A security engineer w
In the past, I once thought that as long as not casually run the files sent by netizens will not virus or trojan, but then there was the use of loopholes in the spread of shock waves, shock wave; before, I had thought that not on the small web site will not be a Trojan horse, but later, including a well-known game site in a number of large sites in its home page was hackers hung on the
How to remove Trojan tips:
1, by the Trojan client program
The name and version of the Trojan are judged by the suspicious filenames previously found in Win.ini, System.ini, and the registry. For example, "NetBus", "Netspy" and so on, it is obvious that the corresponding Trojan is NetBus and Netspy. From the Internet
. Symantec and ewido were used to scan and kill the machines, and some suspicious programs were indeed found, here I would like to praise the ewido software and find out a keyboard hook program I wrote a long time ago. It is incredible that I used hijackthis again to view and remove all suspicious Service Startup projects, after that, I changed the password and PIN code of another account and thought it was basically safe. The most ironic thing is that the next day I retrieved the stolen account
Many computer users often encounter a situation where their antivirus software reports discovered the Trojan Horse virus, but it was unable to clear and isolate it, or it appeared again shortly after it was cleared, which is very distressing. What should I do now?In fact, Trojan Horse is a general term for Trojans by some anti-virus software. It does not represent a fixed one, but a category. Therefore, the
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