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Profil

Win32.HLLW.Autoruner1.11950

Added to the Dr.Web virus database: 2012-02-14

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'SystemRegistrySheduler' = '%WINDIR%\Help\hlp32.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'WindowsSecurityAgent' = '<SYSTEM32>\rundrv32.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce] 'DllDrv' = '<SYSTEM32>\rundll.lNl'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
Malicious functions:
Executes the following:
  • <SYSTEM32>\ctfmon.exe
Injects code into
the following system processes:
  • <SYSTEM32>\ctfmon.exe
Modifies settings of Windows Internet Explorer:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Associations] 'LowRiskFileTypes' = '.exe;.chm;.kno'
Modifies file system :
Creates the following files:
  • <SYSTEM32>\dllcache\rundll.cmd
  • <SYSTEM32>\rundrv32.exe
  • %WINDIR%\Help\hlp32.exe
  • <SYSTEM32>\init32.dll
  • %WINDIR%\system\VIDEO.DRV
  • <SYSTEM32>\rundll.lNl
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\autorun.inf
  • %WINDIR%\Help\hlp32.exe
  • <SYSTEM32>\rundrv32.exe
Network activity:
Connects to:
  • 'an###tics4u.net':80
  • 'ip#####try.hackers.lv':80
TCP:
HTTP GET requests:
  • ip#####try.hackers.lv/
HTTP POST requests:
  • an###tics4u.net/gatter/connect.php
UDP:
  • DNS ASK an###tics4u.net
  • DNS ASK ip#####try.hackers.lv
  • '<Private IP address>':1037
Miscellaneous:
Searches for the following windows:
  • ClassName: '' WindowName: 'The Wireshark Network Analyzer'
  • ClassName: '' WindowName: 'SysAnalyzer'
  • ClassName: 'MS_WINHELP' WindowName: ''
  • ClassName: 'Indicator' WindowName: ''