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Profil

Win32.HLLW.Autoruner1.4611

Added to the Dr.Web virus database: 2011-11-28

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Host Network' = '<SYSTEM32>\wmphb32.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\acm45.lnk
  • <Drive name for removable media>:\acm46.lnk
  • <Drive name for removable media>:\drvmon64.exe
  • <Drive name for removable media>:\i.cpl
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List] '<SYSTEM32>\wmphb32.exe' = '<SYSTEM32>\wmphb32.exe:*:Enabled:Windows Host Network'
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\wmphb32.exe' = '<SYSTEM32>\wmphb32.exe:*:Enabled:Windows Host Network'
Creates and executes the following:
  • <SYSTEM32>\wmphb32.exe <Full path to virus>
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>\wmphb32.exe
Modifies file system :
Creates the following files:
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\5x2[1].zip
  • <SYSTEM32>\wmphb32.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\i.cpl
  • <SYSTEM32>\wmphb32.exe
Deletes itself.
Network activity:
Connects to:
  • 'vp####.#ntelbackupsrv.su':80
  • 's7#.##telprog.su':4502
TCP:
HTTP GET requests:
  • vp####.#ntelbackupsrv.su/net/5x2.zip
UDP:
  • DNS ASK vp####.#ntelbackupsrv.su
  • DNS ASK s8#.##telprog.su
  • DNS ASK s7#.##telprog.su
  • '<Private IP address>':1036
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'