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Win32.HLLW.Autoruner.35162

Added to the Dr.Web virus database: 2010-11-13

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Terminal Server\Install\Software\Microsoft\Windows\CurrentVersion\Run] 'Ci Servs' = 'oldbi.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Ci Servs' = 'oldbi.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\new\allx\es.EXE
  • <Drive name for removable media>:\new\allx\Desktop.ini
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to virus>' = '<Full path to virus>:*:Enabled:Ci Servs'
Creates and executes the following:
  • %WINDIR%\oldbi.exe 
Executes the following:
  • <SYSTEM32>\netsh.exe firewall add allowedprogram oldbi.exe 1 ENABLE
Searches for windows to
detect programs and games:
  • ClassName: 'MSNHiddenWindowClass' WindowName: ''
  • ClassName: '_Oscar_StatusNotify' WindowName: ''
Modifies file system :
Creates the following files:
  • %WINDIR%\oldbi.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\new\allx\es.EXE
  • %WINDIR%\oldbi.exe
Network activity:
Connects to:
  • 'ni##.#iceshot.in':6567
UDP:
  • DNS ASK ni##.#iceshot.in
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Message Session' WindowName: ''
  • ClassName: 'TskMultiChatForm.UnicodeClass' WindowName: ''
  • ClassName: '__oxFrame.class__' WindowName: ''