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Profil

Win32.HLLW.Autoruner2.24883

Added to the Dr.Web virus database: 2016-08-05

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{AEBBCAEA-5FED-E4B4-FC1E-F6AE31BDDDFA}] 'StubPath' = '%APPDATA%\K0SZR9N8RC.exe'
  • [<HKCU>\Software\Microsoft\Active Setup\Installed Components\{AEBBCAEA-5FED-E4B4-FC1E-F6AE31BDDDFA}] 'StubPath' = '%APPDATA%\K0SZR9N8RC.exe'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Defender' = '%APPDATA%\K0SZR9N8RC.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run] 'Windows Defender' = '%APPDATA%\K0SZR9N8RC.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Defender' = '%APPDATA%\K0SZR9N8RC.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\Autorun.ini
  • <Drive name for removable media>:\<Virus name>.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\K0SZR9N8RC.exe' = '%APPDATA%\K0SZR9N8RC.exe:*:Enabled:Window...
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to virus>' = '<Full path to virus>:*:Enabled:Windows Messan...
Executes the following:
  • '<SYSTEM32>\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /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>:*:Enab...
  • '<SYSTEM32>\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\K0SZR9N8RC.exe" /t REG_SZ /d "%APPDATA%\K0SZR9N8RC.ex...
  • '<SYSTEM32>\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
  • '<SYSTEM32>\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "<Full path to virus>" /t REG_SZ /d "<Full path to virus>...
  • '<SYSTEM32>\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\K0SZR9N8RC.exe" /t REG_SZ /d "%APPDATA%\K0SZR9...
Injects code into
the following system processes:
  • %WINDIR%\Explorer.EXE
Modifies file system:
Creates the following files:
  • %APPDATA%\data.dat
  • %APPDATA%\K0SZR9N8RC.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%\K0SZR9N8RC.exe
  • <Full path to virus>
Network activity:
Connects to:
  • 'zo####.no-ip.biz':81
UDP:
  • DNS ASK zo####.no-ip.biz
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''
  • ClassName: 'shell_traywnd' WindowName: ''
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