Transfer from the original forum Jakee posts:
Recently many netizens reflect their machine is called a gray pigeon Trojan virus, this virus is very naughty, in different kill soft have different names such as: Gpigeon, Huigezi, Feutel, in the computer to clear it is very troublesome, especially its just opened issued 2005, Through the interception of Windows System API to achieve program file hiding, proces
Autorun virus Defender is a special for the popular U disk virus development of the killing program. Its unique precision killing and expansion of the killing double killing mechanism can thoroughly remove viruses and trojans related files and registry entries, do not leave remnants. With a unique heuristic killing engine, the unknown U disk virus has more than 9
First, the preface
Virus class teacher threw us a copy of the VBS script virus code to try to analyze, here the analysis process sent out for everyone's reference, if found in what is wrong or what is suggested, you can leave a message to me, thank you!
Ii. Table of Contents
The entire analysis process can be divided into the following sections:
0x00 Preparation Work0x01 Decryption part0x02 function Ana
Situation
All the right keys are running, each disk will appear random 8-bit XXXXXXXX.exe and Autorun.inf files
Internet search virus, Trojan, etc will be virus turned off, can not open nod32 and other anti-virus
Software
Unable to view hidden files, workaround:
Method One: Modify the registry file (the following file save bit ok.reg) to run
Copy Code code
Virus Name: Worm.Pabug.ck
Size: 38,132 bytes
md5:2391109c40ccb0f982b86af86cfbc900
Adding Shell way: FSG2.0
Written Language: Delphi
How to spread: through mobile media or Web page malicious script propagation
Through the virtual machine operation, and after the Shell OD analysis, its behavior is as follows:
File creation:
%systemroot%\system32\gfosdg.exe
%systemroot%\system32\gfosdg.dll
%systemroot%\system32\severe.exe
%systemroot%\system32\drivers
Special finishing a auto Autorun.inf desktop.ini sxs.exe auto.exe virus Manual processing complete skills, you can see the image set method, let auto Autorun.inf desktop.ini Auto.exe Virus Nowhere to hide
Recently, a number of viruses, the performance of:
1, under each partition will have three files, the property is hidden, file name is: autorun.inf,desktop.in,sxs.exe, which EXE file is a
, browser sandbox, web site detection and so on.
"Avast!" One of the main features of the operation of the interface is quite beautiful, not like the general killing soft interface so stiff, and a large number of skin for you to choose, so that you can arbitrarily create personalized "avast!." Simple user interface, low system resource footprint, fast HDD scan and efficient antivirus, "avast!" is indeed an anti-virus software in the elderly.
3. AVG
Where is a bear cat burning incense?????Not a panda in incense, but all the EXE icon pocket into a burning 3 fragrant little panda, the icon is very cutePay in a manual way:Panda Variety Spoclsv.exe SolutionVirus name: WORM.WIN32.DELF.BF (Kaspersky)Virus alias: WORM.NIMAYA.D (Rising)win32.trojan.qqrobber.nw.22835 (Poison PA)Virus size: 22,886 bytesAdding Shell way: upackSample md5:9749216a37d57cf4b2e528c027
Virus program source code instance analysis-example code of CIH virus [2] can be referred to push eax; block table size
Push edx; edx is the offset of the virus code block table
Push esi; buffer address
The total size of the merged virus code block and virus code block ta
"Nima (Worm.nimaya)" Virus: Alert degree ★★★☆, worm, transmitted through infected files, dependent system: Win 9X/NT/2000/XP.
The virus uses the Panda avatar as an icon to entice the user to run. After the virus runs, it automatically finds the EXE executable file in Windows format and infects it. Because of the problem with the
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 is the latest variant of the Niu.exe virus, and recently the spread of new variants of the virus has been raised, I hope that attention.
Quote:
File:Discovery.exe
size:74240 bytes
Modified:2008 year February 2, 0:03:34
md5:2da55f2a36e852ee6fc96d34dd520979
Sha1:44ce8f1c1a02591a88867f421c0c658b200d94c1
crc32:e20e292d
1. After the virus runs, the following
File name: Video.exe
File Size: 40960 bytes
AV name: BACKDOOR.WIN32.IRCBOT.AFM (Kaspersky)
Adding shell mode: Unknown
Writing language: Microsoft Visual C + +
Virus type: IRC back door
File Md5:c06d070c232bc6ac6346cbd282ef73ae
Behavioral Analysis:
1. Release virus copy:
%srstemroot%system32\firewall.exe 40960 bytes.
(The filename should be random, not necessarily this).
Compress the replica
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
Some people think that anti-virus is a simple task. Isn't it just by clicking the "anti-virus" button of anti-virus software?
Yes, anti-virus software is required for anti-virus, but it doesn't mean that it is a good thing to do when you click anti-
Modified:2008 year May 8, 18:52:32
md5:7009ac302c6d2c6aadede0d490d5d843
sha1:0e10da72367b8f03a4f16d875fea251d47908e1e
crc32:dce5ae5a
After virus runs:
1. Release a sbl.sys to the%system32%\drivers below, and copy a cover Beep.sys, then load the drive, restore SSDT hook, resulting in some anti-virus software active defense function failure.
2. End the process of many anti-
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.