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Open Source and information security mailing list archives
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From: fdisclosure at alicampbell.org.uk (Ali Campbell) Subject: On Polymorphic Evasion Does the fixed-length nature of RISC instructions make detecting a shellcode on a platform such as PPC via IDS easier ? Or does the larger availability of pseudo-NOP instructions on these platforms (owing chiefly to more combinations of registers being available) in fact make it harder ? I wrote some shellcode for OS X once, basically as an exercise, and I caught myself wondering about this.