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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.Genome.baql

Detected Sep 30 2010 01:05 GMT
Released Sep 30 2010 07:25 GMT
Published Apr 22 2011 08:44 GMT

Technical Details
Payload
Removal instructions

Technical Details

This Trojan downloads files from the Internet without the user's knowledge. It is a Windows application (PE EXE file). It is 32 811 bytes in size. It is written in C++.

MD5: 58468856d51336ec82c2b4af069cee6e

SHA1: 789be76cfa35513c18b7ea1101aab5b06b8ff1d1


Payload

When launched, the Trojan downloads a file from the Internet via the following link:

http://www.*****8pp.info/xxxeeeddd.exe

The downloaded file is saved to the current user's temporary directory under the name:

%Temp%\setup.exe

The downloaded file is then launched for execution.

The Trojan then creates a command interpreter file in its working directory, launches it for execution and ceases running. This file deletes both the original Trojan file and itself.


Removal instructions

If your computer does not have antivirus protection and has been infected by this malicious program, follow the instructions below to delete it:

  1. Delete the following file:
    %Temp%\setup.exe
  2. Delete the original Trojan file (its location will depend on how the program originally penetrated the infected computer).
  3. Perform a full scan of the computer using Kaspersky Anti-Virus with up-to-date antivirus databases (download a trial version).

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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.Genome.baql (Kaspersky Lab) is also known as:

  • Troj/DwnLdr-IUC (Sophos)
  • Trojan.DownLoader1.33838 (DrWeb)
  • a variant of Win32/TrojanDownloader.Small trojan (Nod32)
  • Trojan.Generic.4628475 (BitDef7)
  • processing error (VirusBuster)
  • Win32:Malware-gen (AVAST)
  • Trojan-Downloader.Win32.Genome (Ikarus)
  • Downloader.Rozena (AVG)
  • Trojan.Gen (NAV)
  • NseCheckFile2() returned 0x00010018 (Norman)
  • Trojan.DL.Win32.Undef.smc (Rising)
  • Mal_DLDER (TrendMicro)
  • Trojan.DL.Small!zC5dkPOSKKs (VirusBusterBeta)