|Detected||Apr 07 2011 18:37 GMT|
|Released||Apr 12 2011 07:45 GMT|
|Published||Sep 09 2011 15:39 GMT|
A trojan program that downloads files from the internet without the user's knowledge and launches them. It is a Windows application (PE-EXE file). 7168 bytes. Written in C++.
When launching, the trojan copies its executable file under the following name:
%WinDir%\System\svchost.exeSo that it may be automatically launched each time the system is started, the trojan adds a link to its executable file in the system registry startup key:
When launching, the trojan looks for and carries out the following processes within the system:
NaverAgent.exe Nsavsvc.npc nsvmon.npc NVCAgent.npc Vcrmon.exe SpiderNt.exe SpiderUI.exe AYAgent.aye AYServiceNT.exeThe trojan then downloads 4 files from the following links:
http://www.j***utl.info/gx2/x4.txt http://www.i***ef.info/gx/x3.txt http://www.g***fj.info/xztj/22.txt http://www.o***rh.info/xztj1/12.txtThese links did not work when creating the description.
The downloaded files are saved in the current user's temporary file directory under the following names:
%Temp%\<rnd>.exeWhere <rnd> – random digits.
The downloaded files are then launched and the trojan shuts down. The trojan is deleted when reloading the original file.
If your computer has not been protected with anti-virus software and has been infected with malware, you will need to take the following actions to delete this:
Programs classified as Trojan-Downloader download and install new versions of malicious programs, including Trojans and AdWare, on victim computers. Once downloaded from the Internet, the programs are launched or included on a list of programs which will run automatically when the operating system boots up.
Information about the names and locations of the programs which are downloaded are in the Trojan code, or are downloaded by the Trojan from an Internet resource (usually a web page).
This type of malicious program is frequently used in the initial infection of visitors to websites which contain exploits.