Introduction to the typical "Valentine's Day" virus
1. Valentine's Day (VBS. Valentin) virus
Valentine's Day (VBS. Valentin) virus is a virus that can write love letters. It encrypts itself with the scripting encryption engine and inserts it into the HTML file, which produces a vir
This article is not an article about horizontal evaluation of n types of anti-virus software, but an article about building a platform based on my own user experience. For now, good anti-virus software has its own characteristics, but they are all the same. Therefore, there is no universal anti-virus software. The key is to choose a suitable anti-
Any viruses and Trojans exist in the system, can not completely and process out of the relationship, even if the use of hidden technology, but also can find clues from the process, therefore, viewing the process of the system activity is the most direct way to detect the virus Trojan. But the system runs at the same time so many processes, which is the normal system process, which is the process of Trojans, and often by
First, let the virus disappear from the directory
We start with the directory where the virus resides, and if the virus has a separate directory like normal software, then we can smile a little bit--the virus is weaker. When you check the directory's creation time, you can tell when you dyed the poison and you may fin
1. What is the virus?
What is computer virus? The standard definition should refer to the compilation or insertion of computer commands or program code that damage computer functions or data and affect computer use. Computer viruses, like biological viruses, can spread, multiply, and attach to normal computer programs to cause damage. Therefore, we call it computer viruses. It is contagious, destructive, c
push EAX; block table size
push edx; edx is the offset of the Virus code block table
push esi; buffer address
Combined virus code block and Virus code block table must be less than or equal to the amount of space not used
Inc ECX
push ecx; Save numberofsections+1
SHL ecx, 03h; multiply 8
push ecx; reserved virus
series "kingdoms" has been seen. Oh, just don't understand so deeply! In the hacking technology, Jinchantuoqiao refers to: Delete system running log attacker to break the system, often delete the system run log, hide their traces ... OhSecond, Shell, shelling, packersIn nature, I think we should not be unfamiliar with the shell of this thing, from the above story, we can also be seen. Plants in nature use it to protect the seeds, and animals use it to protect the body and so on. Also, in some c
Logo_1.exe Mutant Virus SolutionAfter the attachment decompression, the files inside the virus folder are copied to the c:\windows\ below. Rest assured. These are empty files. The file name is the same as the virus name. But it's all 0 bytes.Then run Logo1virus.bat to add the system to the files that were just put under c:\windows\. Hide. Read Only 3 properties.T
Since the release of the "write a WORM.WIN32.VB.FW virus kill" and " virus Rundll.exe Release and source sharing " two articles in the virus specifically killed, my virus specifically kill VBS template also began to consider perfect. This time, the "Hosts file restore function module " and "Autorun immune Function Modu
This series of tutorials is copyright "I spring and Autumn" All, reproduced please indicate the source.for video tutorials, please visit "I Spring" (www.ichunqiu.com). virus found on USB stickSome time ago need to copy the point data to the virtual machine, as usual, plug in my USB flash drive, and in the virtual machine settings to choose the connection USB drive. Oddly enough, this time the connection is longer than usual and the AutoPlay window app
Some friends may think that anti-virus is a simple task. Isn't it just by clicking the "anti-virus" button of anti-virus software? Anti-virus really requires anti-virus software, but it also requires skill!
This article does not introduce anti-
1. Boot virus capture
Virus extraction in the boot area is simple. First, use Format A:/S to copy the boot system file to A floppy disk, and then copy some system execution files from the hard disk to the floppy disk. The specific steps are as follows: Enter the MS-DOS mode, Format A system disk, Format A:/s, for different systems, copy the following files to the same disk:
For the gdi.exernl286.exe1_progma
This series of tutorials is copyright "I spring and Autumn" All, reproduced please indicate the source. for Video tutorials, please visit "I Spring" (www.ichunqiu.com).PrefaceThe last time we have introduced the basic method of virus signature extraction, this time we are programmed to implement the virus signature killing.defining a signature storage structureFor the sake of simplicity, this time we are us
Jiang Min's October 3 virus broadcast: Beware of "nilag" virus stealing equipment information of online game heaven
Jiang min reminds you today: In today's virus, TrojanDropper. HTML. r "HTML messenger" variants r and Trojan/
PSW. Nilage. bql "nilag" variant bql is worth noting.
Virus name: TrojanDropper. HTML. r
Chine
MSN virus refers to those who send a poisonous file or a poisonous Web page link through MSN, the malicious program that realizes self propagation. Most of the MSN virus workflows are fairly similar and are grouped into the following 3 steps:
1, the virus obtains the user's MSN Friend list, sends the virus file or the
Virus Trojan scan: A. NET-based research on "Hitting the bar" virusI. Preface: since the development of malicious programs, their functions have evolved from simple destruction to privacy spying, information theft, and even the very popular "Hitting the barriers" virus, used for extortion. It can be seen that with the development of the times, virus writers often
virus Program Source code example Anatomy-CIH virus [5]
Push ECXLoop $ ; destroys the ROM data of additional 000e0000-000e007f segments in the BIOS, a total of 80h bytesXOR Ah, ahmov [EAX], AL Xchg ecx, eaxLoop $ ; Displays and activates the BIOS 000E0000-000FFFFF segment data, a total of KB, the segment can be written to information mov eax, 0f5555hPop ecxmov ch, 0aahCall EBXmov byte ptr [eax], 2
At present, the mainstream computers are using 64-bit CPU, the operating system gradually from 32 to 64, most of the new factory PC installed 64-bit Windows 7. When people think that 16-bit programs (mostly DOS programs) will disappear, the virus breaks the peace. October 25, Jinshan poison PA Safety Center monitoring found a 16-bit DOS virus resurrection, easy to cross the mainstream anti-
With unlimited broadband popularity, in order to facilitate BT download, many friends love 24-hour hanging machine. All-weather online, which gives some viruses, trojans "intrusion" system has brought great convenience, they can invade our computer in the middle of the night, wanton abuse. Recently, the author in helping a friend antivirus, encountered a "cannot remove virus", the following will be killing experience with everyone to share.
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