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Win32.HLLW.Autoruner.53580
Added to the Dr.Web virus database:
2011-07-07
Virus description added:
2011-07-07
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{3EDF9DEB-4DFE-D5EA-CADB-0F60FD1BFFF6}] 'StubPath' = '%APPDATA%\spre.exe'
[<HKCU>\Software\Microsoft\Active Setup\Installed Components\{3EDF9DEB-4DFE-D5EA-CADB-0F60FD1BFFF6}] 'StubPath' = '%APPDATA%\spre.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'system32' = '%APPDATA%\spre.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'system32' = '%APPDATA%\spre.exe'
Creates the following files on removable media:
<Drive name for removable media>:\<Virus name>.exe
<Drive name for removable media>:\Autorun.ini
<Drive name for removable media>:\Diskrun.exe
<Drive name for removable media>:\Autorun.inf
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\spre.exe' = '%APPDATA%\spre.exe:*:Enabled:Windows Messanger'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to virus>' = '<Full path to virus>:*:Enabled:Windows Messanger'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
Executes the following:
<SYSTEM32>\reg.exe ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\spre.exe" /t REG_SZ /d "%APPDATA%\spre.exe:*:Enabled:Windows Messanger" /f
<SYSTEM32>\reg.exe ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "<Full path to virus>" /t REG_SZ /d "<Full path to virus>:*:Enabled:Windows Messanger" /f
<SYSTEM32>\reg.exe ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
Modifies file system :
Creates the following files:
C:\Autorun.inf
%APPDATA%\k-one
%APPDATA%\spre.exe
C:\Diskrun.exe
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\<Virus name>.exe
<Drive name for removable media>:\Autorun.ini
%APPDATA%\spre.exe
<Full path to virus>
Network activity:
Connects to:
UDP:
DNS ASK ek####.no-ip.info
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: ''
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