Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'RealPlayerr' = 'C:\RECYCLER\Bigg.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\Bigg.exe
Malicious functions:
Executes the following:
- '<SYSTEM32>\attrib.exe' +h C:\ProgramData\BIGG
- '<SYSTEM32>\attrib.exe' +h %PROGRAM_FILES%\Adobe\BIGG
- '<SYSTEM32>\attrib.exe' +h %PROGRAM_FILES%\BIGG
- '<SYSTEM32>\attrib.exe' +h c:\BIGG
- '<SYSTEM32>\attrib.exe' +h %WINDIR%\BIGG
- '<SYSTEM32>\attrib.exe' +h <Drive name for removable media>:\BIGG
Modifies file system :
Creates the following files:
- C:\BIGG\Bigg.exe
- %WINDIR%\BIGG\Bigg.exe
- %PROGRAM_FILES%\BIGG\Bigg.exe
- <SYSTEM32>\Bigg.exe
- C:\Bigg.exe
- C:\autorun.inf
- C:\RECYCLER\Bigg.exe
Sets the 'hidden' attribute to the following files:
- C:\BIGG\Bigg.exe
- <SYSTEM32>\Bigg.exe
- %PROGRAM_FILES%\BIGG\Bigg.exe
- %WINDIR%\BIGG\Bigg.exe
- C:\RECYCLER\Bigg.exe
- <Drive name for removable media>:\Bigg.exe
- C:\Bigg.exe
- <Drive name for removable media>:\autorun.inf
- C:\autorun.inf
Deletes the following files:
- <Drive name for removable media>:\autorun.inf
- C:\autorun.inf
Network activity:
Connects to:
- 'pr#####ux02.zapto.org':664
UDP:
- DNS ASK pr#####ux02.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
