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Win32.HLLW.Autoruner.59295
Added to the Dr.Web virus database:
2011-09-18
Virus description added:
2011-09-19
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nod34krn.exe] 'Debugger' = ' '
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mcshield.exe] 'Debugger' = ' '
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nod34kui.exe] 'Debugger' = ' '
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe] 'Debugger' = ' '
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe] 'Debugger' = ' '
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msconfig.exe] 'Debugger' = ' '
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Office Update' = '%WINDIR%\Web\OfficeUpdate.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = '%SYSTEMROOT%\explorer.exe, %SYSTEMROOT%\smss.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'AcroRd32' = '%WINDIR%\Utility Sound\SoundMax.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avp.exe] 'Debugger' = ' '
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'MSAccess' = '<SYSTEM32>\remind.exe'
Creates the following files on removable media:
<Drive name for removable media>:\Security.exe
<Drive name for removable media>:\autorun.inf
Malicious functions:
Creates and executes the following:
Executes the following:
<SYSTEM32>\reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nod34kui.exe" /v "Debugger" /t REG_SZ /d " " /f
<SYSTEM32>\reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nod34krn.exe" /v "Debugger" /t REG_SZ /d " " /f
<SYSTEM32>\reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe" /v "Debugger" /t REG_SZ /d " " /f
<SYSTEM32>\reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\virus.exe" /v "Debugger" /t REG_SZ /d " " /f
<SYSTEM32>\reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe" /v "Debugger" /t REG_SZ /d " " /f
<SYSTEM32>\taskkill.exe /f /im Reg.exe
<SYSTEM32>\cmd.exe /c <SYSTEM32>\Config\Sec.cmd
<SYSTEM32>\reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avp.exe" /v "Debugger" /t REG_SZ /d " " /f
<SYSTEM32>\reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mcshield.exe" /v "Debugger" /t REG_SZ /d " " /f
<SYSTEM32>\reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msconfig.exe" /v "Debugger" /t REG_SZ /d " " /f
Modifies file system :
Creates the following files:
C:\Security.exe
<SYSTEM32>\config\Sec.cmd
%WINDIR%\smss.exe
C:\autorun.inf
<SYSTEM32>\remind.exe
%WINDIR%\Web\OfficeUpdate.exe
%WINDIR%\Utility Sound\SoundMax.exe
Sets the 'hidden' attribute to the following files:
C:\Security.exe
<Drive name for removable media>:\Security.exe
C:\autorun.inf
<Drive name for removable media>:\autorun.inf
Miscellaneous:
Searches for the following windows:
ClassName: '' WindowName: ''
ClassName: 'Indicator' WindowName: ''
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