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Trojan-Dropper.Win32.Small.do

RISK LEVEL:2



This Trojan installs other programs to the victim machine without the knowledgeor consent of the user. It is a Windows PE EXE file. It is 36,864 bytes insize.

The Trojan also extracts the following DLL file from its body:

  • %Documents and Settings%\<current user>\Application Data\Microsoft\Office\Excel10.dll— this file is 17 920 bytes in size, and will be detected by KasperskyAnti-Virus as Trojan-Downloader.Win32.IstBar.ay

The Trojan registers the DLL in the system, launching the following process:

  • regsvr32 /s %Documents and Settings%\<current user>\ApplicationData\Microsoft\Office\Excel10.dll

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

  1. Delete the original Trojan file (the location will depend onhow the program originally penetrated the victim machine).
  2. Revert the DLL file registration by executing the following command:
    • regsvr32 /u %Documents and Settings%\<cuppent user>\ApplicationData\Microsoft\Office\Excel10.dll
  3. Delete the file created by the Trojan:
    • %Documents and Settings%\<current user>\Application Data\Microsoft\Office\Excel10.dll
  4. Update your antivirus databases and perform a full scan of thecomputer (download a trial version of Kaspersky Anti-Virus).


Printed From:http://www.viruslist.com/en/viruses/encyclopedia?virusid=40749


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