webshell dectector rewrite from Shell-Detector
#result template
{
'alarm': 'medium',
'created_time': 'Sat May 2 10:50:35 2015',
'filename': './php-webshells/529.php',
'filesize': 1523,
'fingerprint': [],
'last_modified': 'Sat May 2 10:50:35 2015',
'owner': '1000:100',
'perm': '644',
'suspicious': [{ 'func': ['curl_exec'], 'line': 1}]
}