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The Internet threat alert status is currently normal. At present, no major epidemics or other serious incidents have been recorded by Kaspersky Lab’s monitoring service. Internet threat level: 1

Trojan-Downloader.Win32.Small.ban

Detected Jun 23 2005 12:58 GMT
Released Jun 23 2005 12:58 GMT
Published Jan 25 2008 14:10 GMT

Technical Details
Payload
Removal instructions

Technical Details

This Trojan downloads another malicious program via the Internet and launches it on the victim machine without the user’s knowledge or consent. It is a Windows PE EXE file. It is 4096 bytes in size.


Payload

The Trojan downloads files from the following URLs:

http://***tock.com/plucore.exe
http://***tock.com/load2.exe

These files will be saved as follows:

%WinDir%\plucore.exe
%WinDir%\load2.exe

Once downloaded, the files will be launched for execution.

At the time of writing, these links were not working.


Removal instructions

If your computer does not have an up-to-date antivirus, or does not have an antivirus solution at all, follow the instructions below to delete the malicious program:

  1. Use Task Manager to terminate the malicious program’s process.
  2. Delete the original Trojan file (the location will depend on how the program originally penetrated the victim machine).
  3. Delete the following files:
    %WinDir%\plucore.exe
    %WinDir%\load2.exe
  4. Update your antivirus databases and perform a full scan of the computer (download a trial version of Kaspersky Anti-Virus).

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Trojan-Downloader

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.


Other versions

Aliases

Trojan-Downloader.Win32.Small.ban (Kaspersky Lab) is also known as:

  • Trojan: Generic Downloader.x (McAfee)
  • Mal/DownLdr-AC (Sophos)
  • Trojan.Downloader.Small-774 (ClamAV)
  • W32/Downloader.GAO (FPROT)
  • TrojanDownloader:Win32/Small (MS(OneCare))
  • Trojan.DownLoader.3246 (DrWeb)
  • Win32/TrojanDownloader.Small.ANQ trojan (Nod32)
  • Generic.Malware.dld!!.D1613A4C (BitDef7)
  • Trojan.DL.Small.BQMF (VirusBuster)
  • Win32:Small-AUC [Trj] (AVAST)
  • Trojan-Downloader.Win32.Small (Ikarus)
  • Downloader.Small.48.F (AVG)
  • TR/Downloader.Gen (AVIRA)
  • Downloader.Trojan (NAV)
  • W32/DLoader.GZN (Norman)
  • Downloader (NAI)
  • TROJ_SMALL.CHB (PCCIL)
  • Trojan.DL.Small.qm (Rising)
  • TROJ_SMALL.CHB (TrendMicro)