# syzygy

Published articles for syzygy.

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## Binary rewriting with syzygy, Pt. I

DevFeed: [Binary rewriting with syzygy, Pt. I](<https://devfeed.tech/articles/binary-rewriting-with-syzygy-pt-i-39702.md>)

Original publisher: [Read original article](<https://doar-e.github.io/blog/2017/08/05/binary-rewriting-with-syzygy/>)

Author: Axel "0vercl0k" Souchet

Published: 2017-08-05T23:08:00Z

Content type: tutorial

Language: en

Sources: [Diary of a reverse-engineer](<https://devfeed.tech/sources/diary-of-a-reverse-engineer.md>)

Topics: [Instrumentation](<https://devfeed.tech/topics/instrumentation.md>), [toolchain](<https://devfeed.tech/topics/toolchain.md>), [MSVC](<https://devfeed.tech/topics/msvc.md>), [x86](<https://devfeed.tech/topics/x86.md>), [C++](<https://devfeed.tech/topics/c-plus-plus.md>), [function](<https://devfeed.tech/topics/function.md>), [Chromium](<https://devfeed.tech/topics/chromium.md>)

Tags: [binaries](<https://devfeed.tech/tags/binaries.md>), [binary-rewriting](<https://devfeed.tech/tags/binary-rewriting.md>), [c-plus-plus](<https://devfeed.tech/tags/c-plus-plus.md>), [chromium](<https://devfeed.tech/tags/chromium.md>), [dynamic-binary-instrumentation](<https://devfeed.tech/tags/dynamic-binary-instrumentation.md>), [instrumentation](<https://devfeed.tech/tags/instrumentation.md>), [intel](<https://devfeed.tech/tags/intel.md>), [misc](<https://devfeed.tech/tags/misc.md>), [msvc](<https://devfeed.tech/tags/msvc.md>), [program-analysis](<https://devfeed.tech/tags/program-analysis.md>), [syzygy](<https://devfeed.tech/tags/syzygy.md>)

### AI overview

This introductory article presents Syzygy, Google's transformation tool chain for statically instrumenting PE images. It outlines the framework's capabilities and limitations and introduces analysis and transformation passes, including call-graph generation and rewriting functions in /GS-protected binaries.

### Source excerpt

Introduction Binary instrumentation and analysis have been subjects that I have always found fascinating. At compile time via clang, or at runtime with dynamic binary instrumentation frameworks like Pin or DynamoRIO. One thing I have always looked for though, is a framework able to statically instrument a PE image. A ...