|Detected||Mar 10 2005 08:07 GMT|
|Released||Mar 10 2005 08:07 GMT|
|Published||Mar 14 2005 12:10 GMT|
This primitive Trojan is a Win32 file approximately 1117 bytes in size, packed using FSG. The unpacked files is approximately 28KB in size.
When it is launched, the Trojan downloads other malicious programs from addresses coded into its body. However, this does not happen every time the Trojan is launched; the frequency at which it will download other programs has been determined by the author of the program.
Once it has downloaded other programs, it will launch them on the victim machine, and then cease to function.
It does not manifest its presence in the system in any other way.
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.