Tools PHP deobfuscators: Online: FOPO PHP Deobfuscator Sucuri's PHP decoder Toolki's PHP decoder unPHP Offline: PHP Converter PHP Script Decoder PHP beautifiers: Dan's PHP beautify PHP beautifier PHP formatter PHP testers: Online: PHP Editor PHPFiddle PHP Sandbox PHP Tester Offline: EasyPHP XAMPP Notes Always investigate malware in a secure environment. This means: seperately from your network and in a virtual machine! Some backdoors may be backdoored (yes, really). Don't ever use this for any malicious purposes.