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Profil

Win32.HLLW.Autoruner2.26572

Added to the Dr.Web virus database: 2016-11-15

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '<File name>.exe' = '<Full path to file>'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf.lnk
  • <Drive name for removable media>:\firefox.exe.lnk
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\viruz.exe
  • <Drive name for removable media>:\firefox.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
blocks execution of the following system utilities:
  • Windows Task Manager (Taskmgr)
  • Registry Editor (RegEdit)
Executes the following:
  • '<SYSTEM32>\netsh.exe' firewall set opmode disable
Modifies file system:
Creates the following files:
  • %HOMEPATH%\My Documents\Downloads\Windows Media Player.exe
  • %HOMEPATH%\My Documents\Downloads\Windows NT.exe
  • %HOMEPATH%\My Documents\Downloads\WindowsUpdate.exe
  • %HOMEPATH%\My Documents\Downloads\Outlook Express.exe
  • %HOMEPATH%\My Documents\Downloads\Reference Assemblies.exe
  • %HOMEPATH%\My Documents\Downloads\Uninstall Information.exe
  • \Device\LanmanRedirector\CRNJEUFU\Program Settings\winadmin-setup.exe
  • C:\Program Settings\winadmin-setup.exe
  • %TEMP%\WinSetup.scr
  • %HOMEPATH%\My Documents\Downloads\xerox.exe
  • C:\firefox.exe
  • C:\autorun.inf
  • %HOMEPATH%\My Documents\Downloads\Online Services.exe
  • %HOMEPATH%\My Documents\Downloads\Internet Explorer.exe
  • %HOMEPATH%\My Documents\Downloads\Messenger.exe
  • %HOMEPATH%\My Documents\Downloads\microsoft frontpage.exe
  • %HOMEPATH%\My Documents\Downloads\Common Files.exe
  • %HOMEPATH%\My Documents\Downloads\ComPlus Applications.exe
  • %HOMEPATH%\My Documents\Downloads\FireFox.exe
  • %HOMEPATH%\My Documents\Downloads\MSN.exe
  • %HOMEPATH%\My Documents\Downloads\MSN Gaming Zone.exe
  • %HOMEPATH%\My Documents\Downloads\NetMeeting.exe
  • %HOMEPATH%\My Documents\Downloads\Microsoft.NET.exe
  • %HOMEPATH%\My Documents\Downloads\Movie Maker.exe
  • %HOMEPATH%\My Documents\Downloads\MSBuild.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\firefox.exe
  • %TEMP%\WinSetup.scr
  • <Full path to file>
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\viruz.exe
  • C:\autorun.inf
  • C:\firefox.exe
Deletes the following files:
  • <Drive name for removable media>:\firefox.exe.lnk
  • <Drive name for removable media>:\autorun.inf.lnk
Network activity:
Connects to:
  • '<L###LNET>.0.2':139
  • 'localhost':445
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''
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