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Win32.HLLO.Blop.159
Added to the Dr.Web virus database:
2012-11-26
Virus description added:
2012-11-26
Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
%ALLUSERSPROFILE%\Start Menu\Programs\Startup\xpidl.exe.pif
Creates the following services:
[<HKLM>\SYSTEM\ControlSet001\Services\XBOD1XHKL97G] 'Start' = '00000002'
Malicious functions:
Creates and executes the following:
%PROGRAM_FILES%\U8STXNDY13.exe rb
%PROGRAM_FILES%\U8STXNDY13.exe <Full path to virus>
Executes the following:
<SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v "Display Inline Videos" /t REG_SZ /d no /F
<SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v Play_Animations /t REG_SZ /d no /F
<SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v Play_Background_Sounds /t REG_SZ /d no /F
<SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v "Display Inline Images" /t REG_SZ /d yes /F
<SYSTEM32>\reg.exe delete HKLM\Software\Microsoft\Windows\CurrentVersion\Run /F
<SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v "Disable Script Debugger" /t REG_SZ /d yes /F
<SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v DisableScriptDebuggerIE /t REG_SZ /d yes /F
<SYSTEM32>\regsvr32.exe /u /s shimgvw.dll
<SYSTEM32>\sc.exe create YBNLLZBDWRBinPath= "%PROGRAM_FILES%\VVRW8\JZF81.exe -start" type= own type= interact start= auto DisplayName= RLC9RPIIVQM
<SYSTEM32>\cmd.exe /c "%PROGRAM_FILES%\LGOM1S2Q53.bat"
<SYSTEM32>\regsvr32.exe /u /s itss.dll
<SYSTEM32>\regsvr32.exe /s jscript.dll
<SYSTEM32>\regsvr32.exe /u /s vbscript.dll
<SYSTEM32>\regsvr32.exe /u /s scrrun.dll
Modifies file system :
Creates the following files:
%WINDIR%\GR9UEQ.exe
%TEMP%\RGI1.tmp
%PROGRAM_FILES%\LGOM1S2Q53.bat
%PROGRAM_FILES%\U8STXNDY13.exe
%PROGRAM_FILES%\VVRW8\JZF81.exe
Sets the 'hidden' attribute to the following files:
Deletes the following files:
%WINDIR%\Media\Windows XP Logon Sound.wav
%WINDIR%\Media\Windows XP Logoff Sound.wav
%WINDIR%\Media\Windows XP Minimize.wav
%WINDIR%\Media\Windows XP Menu Command.wav
%WINDIR%\Media\Windows XP Information Bar.wav
%WINDIR%\Media\Windows XP Hardware Fail.wav
%WINDIR%\Media\Windows XP Exclamation.wav
%WINDIR%\Media\Windows XP Hardware Remove.wav
%WINDIR%\Media\Windows XP Hardware Insert.wav
%WINDIR%\Media\Windows XP Notify.wav
%WINDIR%\Media\Windows XP Shutdown.wav
%WINDIR%\Media\Windows XP Ringout.wav
%WINDIR%\Media\Windows XP Startup.wav
%WINDIR%\Media\Windows XP Start.wav
%WINDIR%\Media\Windows XP Ringin.wav
%WINDIR%\Media\Windows XP Print complete.wav
%WINDIR%\Media\Windows XP Pop-up Blocked.wav
%WINDIR%\Media\Windows XP Restore.wav
%WINDIR%\Media\Windows XP Recycle.wav
%WINDIR%\Media\Windows XP Error.wav
%WINDIR%\Media\onestop.mid
%WINDIR%\Media\notify.wav
%WINDIR%\Media\ringin.wav
%WINDIR%\Media\recycle.wav
%WINDIR%\Media\flourish.mid
%WINDIR%\Media\chimes.wav
%TEMP%\RGI1.tmp
%WINDIR%\Media\ding.wav
%WINDIR%\Media\chord.wav
%WINDIR%\Media\ringout.wav
%WINDIR%\Media\Windows XP Critical Stop.wav
%WINDIR%\Media\Windows XP Battery Low.wav
%WINDIR%\Media\Windows XP Ding.wav
%WINDIR%\Media\Windows XP Default.wav
%WINDIR%\Media\Windows XP Battery Critical.wav
%WINDIR%\Media\tada.wav
%WINDIR%\Media\start.wav
%WINDIR%\Media\Windows XP Balloon.wav
%WINDIR%\Media\town.mid
Miscellaneous:
Searches for the following windows:
ClassName: 'Shell_TrayWnd' WindowName: ''
ClassName: 'BQGCQLWRYQFH' WindowName: 'nlecbnhbhpvkl'
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