如何查找php木马后门高级篇

可以通过一些关键字或者正则来进行匹配

(\$_(GET|POST|REQUEST)\[.{0,15}\]\(\$_(GET|POST|REQUEST)\[.{0,15}\]\))',

'(base64_decode\([\'"][\w\+/=]{200,}[\'"]\))',

'eval\(base64_decode\(',

'(eval\(\$_(POST|GET|REQUEST)\[.{0,15}\]\))',