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Win32.HLLO.Blop.164
Added to the Dr.Web virus database:
2013-06-25
Virus description added:
2013-06-28
Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
%ALLUSERSPROFILE%\Start Menu\Programs\Startup\helper.exe.pif
Creates the following services:
[<HKLM>\SYSTEM\ControlSet001\Services\ZB9UR4SN] 'Start' = '00000002'
Malicious functions:
Creates and executes the following:
'%PROGRAM_FILES%\6834MMA54A.exe' rb
'%PROGRAM_FILES%\6834MMA54A.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 ZAGTYMBinPath= "%PROGRAM_FILES%\9C33J5N1B\XGXAUFPF89.exe -start" type= own type= interact start= auto DisplayName= 465R5F47
'<SYSTEM32>\cmd.exe' /c "%PROGRAM_FILES%\Y6GI5S.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%\U23RDGZMDZ.exe
%TEMP%\RGI1.tmp
%PROGRAM_FILES%\Y6GI5S.bat
%PROGRAM_FILES%\6834MMA54A.exe
%PROGRAM_FILES%\9C33J5N1B\XGXAUFPF89.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: '(null)'
ClassName: 'ALIWIVUZGLNAB' WindowName: 'lznwuxgbqkddb'
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