Virtual Meta-Scripting Bytecode for PHP and JavaScript

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Virtual Meta-Scripting Bytecode for PHP and JavaScript

Ben Fuhrmannek-2010-01-01

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TL;DRAbstract

Both PHP and JavaScript are frequently being targeted for exploiting web applications. This article elaborates on the idea of building a set of virtual machines on top of each programming language. As a result a single type of bytecode can be executed by both VMs. Particular emphasis is put on designing virtual machines to be most suitable for code obfuscation in a post exploitation scenario. 1

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Both PHP and JavaScript are frequently being targeted for exploiting web applications. This article elaborates on the idea of building a set of virtual machines on top of each programming language. As a result a single type of bytecode can be executed by both VMs. Particular emphasis is put on designing virtual machines to be most suitable for code obfuscation in a post exploitation scenario. 1

Keywords

BytecodeJavaScriptComputer scienceProgramming languageScripting languageObfuscationWeb applicationSet (abstract data type)

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