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Win32.HLLW.Facebook.2524

Added to the Dr.Web virus database: 2015-04-06

Virus description added:

Technical Information

Malicious functions:
Creates and executes the following:
  • '%WINDIR%\bolivar27.exe'
Executes the following:
  • '%WINDIR%\regedit.exe' /s c:\1.reg
  • '<SYSTEM32>\cmd.exe' /c c:\65d2346543.bat
Modifies file system :
Creates the following files:
  • %WINDIR%\fmark2.dat
  • C:\1.reg
  • %WINDIR%\bolivar27.exe
  • C:\65d2346543.bat
Sets the 'hidden' attribute to the following files:
  • %WINDIR%\fmark2.dat
  • %WINDIR%\bolivar27.exe
Deletes the following files:
  • %WINDIR%\bolivar27.exe
  • C:\1.reg
Deletes itself.
Network activity:
Connects to:
  • 'y1##108.com':80
TCP:
HTTP POST requests:
  • http://y1##108.com/fb/first.php
UDP:
  • DNS ASK y1##108.com
Miscellaneous:
Searches for the following windows:
  • ClassName: 'RegEdit_RegEdit' WindowName: ''
  • ClassName: 'Shell_TrayWnd' WindowName: ''
  • ClassName: '' WindowName: ''