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Win32.HLLW.Autoruner2.13918

Added to the Dr.Web virus database: 2014-04-25

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'e5a9ed9865566182cd0d27ec63ce3828' = '%HOMEPATH%\Microsoft\svchost.exe'
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\svchost.exe
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\IDMtor.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
Executes the following:
  • '<SYSTEM32>\netsh.exe' firewall set opmode disable
Modifies file system :
Creates the following files:
  • %TEMP%\BlackData.dat
  • %HOMEPATH%\Microsoft\svchost.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\IDMtor.exe
  • <Drive name for removable media>:\autorun.inf
  • %TEMP%\BlackData.dat
  • %HOMEPATH%\Microsoft\svchost.exe
  • %HOMEPATH%\Start Menu\Programs\Startup\svchost.exe
Network activity:
Connects to:
  • 'ha####4.no-ip.biz':1170
UDP:
  • DNS ASK ha####4.no-ip.biz
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'