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Profil

Win32.HLLW.Autoruner1.18213

Added to the Dr.Web virus database: 2012-06-29

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Media Backup Server' = '<SYSTEM32>\wmpbx32.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\Autorun.inf
  • <Drive name for removable media>:\~DeviceId.{645FF040-5081-101B-9F08-00AA002F954E}\dev-x93209602.id
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List] '<SYSTEM32>\wmpbx32.exe' = '<SYSTEM32>\wmpbx32.exe:*:Enabled:Windows Media Backup Server'
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\wmpbx32.exe' = '<SYSTEM32>\wmpbx32.exe:*:Enabled:Windows Media Backup Server'
Creates and executes the following:
  • <SYSTEM32>\wmpbx32.exe <Full path to virus>
Executes the following:
  • <SYSTEM32>\net.exe stop OutpostFirewall
  • <SYSTEM32>\net1.exe stop ekrn
  • <SYSTEM32>\sc.exe delete ekrn
  • <SYSTEM32>\sc.exe stop OutpostFirewall
  • <SYSTEM32>\sc.exe delete OutpostFirewall
  • <SYSTEM32>\net1.exe stop OutpostFirewall
  • <SYSTEM32>\sc.exe config OutpostFirewall start= disabled
  • <SYSTEM32>\sc.exe config ekrn start= disabled
  • <SYSTEM32>\sc.exe stop NOD32krn
  • <SYSTEM32>\sc.exe config NOD32krn start= disabled
  • <SYSTEM32>\net.exe stop NOD32krn
  • <SYSTEM32>\net1.exe stop NOD32krn
  • <SYSTEM32>\sc.exe stop ekrn
  • <SYSTEM32>\net.exe stop ekrn
  • <SYSTEM32>\sc.exe delete NOD32krn
Injects code into
the following system processes:
  • %WINDIR%\Explorer.EXE
Searches for windows to
detect analytical utilities:
  • ClassName: 'PROCMON_WINDOW_CLASS' WindowName: 'Process Monitor - Sysinternals: www.sysinternals.com'
detect programs and games:
  • ClassName: 'gdkWindowToplevel' WindowName: 'The Wireshark Network Analyzer'
Hides the following processes:
  • <Full path to virus>
  • <SYSTEM32>\wmpbx32.exe
Modifies file system :
Creates the following files:
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\0xf2[1].txt
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\0xf2[1].zip
  • <SYSTEM32>\wmpbx32.exe
Sets the 'hidden' attribute to the following files:
  • <SYSTEM32>\wmpbx32.exe
Deletes itself.
Network activity:
Connects to:
  • '45.##.235.75':51930
  • '66.##8.53.114':80
  • '1.##6.35.96':80
  • '45.##.235.74':8541
TCP:
HTTP GET requests:
  • 66.##8.53.114/ip/0xf2.txt
  • 1.##6.35.96/css/0xf2.zip
UDP:
  • DNS ASK jm########0.level7-co2-as86409.su
  • DNS ASK EL###.TZ6dkrypwD.su
  • DNS ASK cj###.TZ6dkrypwD.su
  • DNS ASK www.microsoft.com
  • DNS ASK na######.level8-co1-as28504.su
  • DNS ASK pt########0.level7-co2-as86409.su
Miscellaneous:
Searches for the following windows:
  • ClassName: 'TCPViewClass' WindowName: ''
  • ClassName: '#32770' WindowName: 'Regshot 1.8.2'
  • ClassName: 'PROCEXPL' WindowName: ''
  • ClassName: 'CNetmonMainFrame' WindowName: 'Microsoft Network Monitor 3.3'
  • ClassName: 'SmartSniff' WindowName: 'SmartSniff'
  • ClassName: 'CurrPorts' WindowName: 'CurrPorts'