Epona and the Obfuscation Paradox: Transparent for Users, a Pain for Reversers

This blog post demonstrates through an example how the Epona obfuscating compiler, from the Epona Application Protection Suite, achieves the challenge of facilitating the everyday experience of its users while enabling better obfuscation schemes trade-offs.

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Arybo: cleaning obfuscation by playing with mixed boolean and arithmetic operations

Obfuscation is made of many different tricks. One we meet very often is mixed instructions who make computations mixing usual arithmetic (ADD, SUB, MUL, DIV) and boolean one (XOR, AND, NOT, OR). All tools get lost when it comes to cleaning this kind of very messy blocks of instructions, and that is why we designed Arybo. With Arybo, analyzing such expressions become way more easy.

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