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Win32.HLLW.Autoruner1.34949
Added to the Dr.Web virus database:
2013-04-06
Virus description added:
2013-04-15
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunOnce] 'Bkr' = '"%HOMEPATH%\Microsoft\bkr.bat"'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'Updates' = '"%HOMEPATH%\Securities\scan.vbe"'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\System File [Not Delete].vbe
Creates the following files on removable media:
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\Nouveau dossier.lnk
<Drive name for removable media>:\LINDA.vbe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
hidden files
file extensions
blocks the following features:
User Account Control (UAC)
Executes the following:
<SYSTEM32>\xcopy.exe /C /H /Y /R "%TEMP%\a.vbe" "%HOMEPATH%\Securities\"
<SYSTEM32>\attrib.exe +s +h "%HOMEPATH%\Securities\scan.vbe"
<SYSTEM32>\xcopy.exe /C /H /Y /R "%HOMEPATH%\Microsoft\LINDA.vbe" "%PROGRAM_FILES%\eMule\Incoming\"
<SYSTEM32>\attrib.exe +s +h "%HOMEPATH%\Microsoft"
<SYSTEM32>\attrib.exe +s +h "%HOMEPATH%\Securities"
<SYSTEM32>\xcopy.exe /C /H /Y /R "%TEMP%\a.vbe" "%HOMEPATH%\Microsoft\"
<SYSTEM32>\xcopy.exe /C /H /Y /R "%HOMEPATH%\Microsoft\LINDA.vbe" "%PROGRAM_FILES%\limewire\"
<SYSTEM32>\xcopy.exe /C /H /Y /R "%TEMP%\LINDA.vbe" "%TEMP%\"
<SYSTEM32>\attrib.exe -s -h "%TEMP%\LINDA.vbe"
<SYSTEM32>\xcopy.exe /C /H /Y /R "%HOMEPATH%\Microsoft\LINDA.vbe" "E:\"
<SYSTEM32>\xcopy.exe /C /H /Y /R "%HOMEPATH%\Microsoft\LINDA.vbe" "<LS_APPDATA>\Ares\My Shared Folder\"
<SYSTEM32>\wscript.exe "%TEMP%\tmp.vbe"
<SYSTEM32>\wscript.exe "%HOMEPATH%\Microsoft\LINDA.vbe"
<SYSTEM32>\find.exe /i "version 6.0."
<SYSTEM32>\cmd.exe /c ""%TEMP%\tmp.bat" "
<SYSTEM32>\reg.exe add "HKCU\software\Microsoft\Windows\CurrentVersion\RunOnce" /v "Bkr" /t "REG_SZ" /d """"%HOMEPATH%\Microsoft\bkr.bat"""" /f
<SYSTEM32>\wscript.exe "%TEMP%\a.vbe"
<SYSTEM32>\cmd.exe /c ""%TEMP%\uac.bat" "
<SYSTEM32>\find.exe /i "version 6.1."
<SYSTEM32>\reg.exe add "HKLM\software\Microsoft\Windows\CurrentVersion\Policies\System" /v "EnableLUA" /t "REG_DWORD" /d 0 /f
<SYSTEM32>\xcopy.exe /C /H /Y /R "%HOMEPATH%\Start Menu\Programs\Startup\*.vbe" "%TEMP%\"
<SYSTEM32>\xcopy.exe /C /H /Y /R "%TEMP%\a.vbe" "%TEMP%\"
<SYSTEM32>\attrib.exe -s -h "%TEMP%\a.vbe"
<SYSTEM32>\reg.exe add "HKLM\software\microsoft\windows\currentversion\policies\system" /v "consentpromptbehavioradmin" /t "REG_DWORD" /d 0 /f
<SYSTEM32>\reg.exe add "HKCR\VBEFile\DefaultIcon" /v "" /t "REG_SZ" /d "shimgvw.dll,3" /f
<SYSTEM32>\xcopy.exe /C /H /Y /R "%HOMEPATH%\Securities\*.vbe" "%TEMP%\"
Modifies file system :
Creates the following files:
%HOMEPATH%\Microsoft\rtk.rtk
%TEMP%\tmp.vbe
<LS_APPDATA>\Ares\My Shared Folder\LINDA.vbe
%HOMEPATH%\Microsoft\bkr.bat
%TEMP%\System File [Not Delete].vbe
%TEMP%\scan.vbe
%PROGRAM_FILES%\limewire\LINDA.vbe
%TEMP%\tmp.bat
%TEMP%\uac.bat
%TEMP%\a.vbe
%PROGRAM_FILES%\eMule\Incoming\LINDA.vbe
%HOMEPATH%\Securities\a.vbe
%HOMEPATH%\Microsoft\a.vbe
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\usbdriver.vbe
<Drive name for removable media>:\autorun.inf
%HOMEPATH%\Securities\scan.vbe
Deletes the following files:
%TEMP%\System File [Not Delete].vbe
%TEMP%\scan.vbe
%HOMEPATH%\Microsoft\rtk.rtk
%HOMEPATH%\Start Menu\Programs\Startup\System File [Not Delete].vbe
%TEMP%\a.vbe
%TEMP%\uac.bat
%TEMP%\tmp.vbe
%TEMP%\tmp.bat
Moves the following files:
from %HOMEPATH%\Securities\a.vbe to %HOMEPATH%\Securities\scan.vbe
from %HOMEPATH%\Microsoft\a.vbe to %HOMEPATH%\Microsoft\LINDA.vbe
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