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Win32.HLLW.Facebook.1703

Added to the Dr.Web virus database: 2012-11-02

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'A-1317858978' = '%APPDATA%\A-1317858978.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce] 'A-1317858978' = '%APPDATA%\A-1317858978.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'A-1317858978' = '%APPDATA%\A-1317858978.exe'
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\A-1317858978.exe
Malicious functions:
Executes the following:
  • <SYSTEM32>\schtasks.exe /CREATE /SC ONLOGON /TN "A-1317858978" /TR "%APPDATA%\A-1317858978.exe"
  • <SYSTEM32>\cmd.exe /c ""%WINDIR%\Temp\sttemp-1317858978.bat" "
  • <SYSTEM32>\svchost.exe
Injects code into
the following system processes:
  • <SYSTEM32>\svchost.exe
Modifies file system :
Creates the following files:
  • %APPDATA%\A-1317858978.exe
  • %WINDIR%\Temp\sttemp-1317858978.bat
Sets the 'hidden' attribute to the following files:
  • %APPDATA%\A-1317858978.exe
  • %HOMEPATH%\Start Menu\Programs\Startup\A-1317858978.exe
  • %WINDIR%\Temp\sttemp-1317858978.bat
Network activity:
Connects to:
  • 'il##oip.it':80
  • 'bb.#c.to':7356
TCP:
HTTP GET requests:
  • il##oip.it/
UDP:
  • DNS ASK www.il##oip.it
  • DNS ASK il##oip.it
  • DNS ASK bb.#c.to
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''