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Win32.HLLW.Autoruner1.4691

Added to the Dr.Web virus database: 2011-11-29

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'taskmngr.exe' = '"%APPDATA%\{%USERNAME%-sdkfjiwefj9efd}\taskmngr.exe"'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'taskmngr.exe' = '"%APPDATA%\{%USERNAME%-sdkfjiwefj9efd}\taskmngr.exe"'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\{%USERNAME%-sdkfjiwefj9efd}\taskmngr.exe
Malicious functions:
Creates and executes the following:
  • %APPDATA%\{%USERNAME%-sdkfjiwefj9efd}\taskmngr.exe 
Modifies file system :
Creates the following files:
  • %APPDATA%\{%USERNAME%-sdkfjiwefj9efd}\sysinfo_sdkfjiwefj9efd.inf
  • %APPDATA%\{%USERNAME%-sdkfjiwefj9efd}\taskmngr.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\{%USERNAME%-sdkfjiwefj9efd}\taskmngr.exe
  • %APPDATA%\{%USERNAME%-sdkfjiwefj9efd}\taskmngr.exe
Network activity:
Connects to:
  • 'ev#.#o-ip.biz/':1337
UDP:
  • DNS ASK ev#.#o-ip.biz/
  • '<Private IP address>':1036
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''