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Binary Analysis

Concept WIKI v1 · 7/3/2026

Binary analysis is the examination of machine code and executable binaries to recover structure, semantics, or properties without source code. It relies on ISA-level specifications to decode, disassemble, lift, and reason about low-level instructions, and underpins tools for decompilation, verification, reverse engineering, and binary translation.

Binary Analysis

Overview

Binary analysis is the systematic study of machine code and executable binaries to recover structure, semantics, or higher-level properties when source code is unavailable. It encompasses a range of activities — including disassembly, lifting to intermediate representations, decompilation, program analysis, verification, and binary translation — all of which depend on a precise understanding of the target instruction set architecture (ISA).

A core enabler for rigorous binary analysis is the availability of formal ISA semantics: specifications that describe how each instruction encodes, decodes, and behaves. These specifications allow analyses to be mechanized rather than hand-coded per instruction, supporting scaling across architectures and instruction variants.

Role of ISA Semantics

Binary analysis depends fundamentally on ISA-level specifications. Without a formal or semi-formal model of an instruction set, every analysis must re-derive semantics from prose documentation, which is error-prone and difficult to maintain.

  • ISA Semantics provide the operational and axiomatic foundation on which binary analyzers are built. The Alastair Reid related-work index of ISA specifications explicitly cross-links Binary analysis as a key topic that depends on these semantics, alongside related concepts such as Binary lifter, Instruction set architecture, and CPU verification.

Tools and Techniques

Several tool families embody binary analysis practice:

  • BAP (Binary Analysis Platform) — a framework that implements binary analysis techniques over a lifted intermediate representation, enabling uniform reasoning across instruction sets.
  • Machine Code Decompilation — a technique that lifts raw binary code into higher-level representations (typically IRs or pseudo-source) suitable for analysis, reuse, or recompilation.
  • TSL (Transfer Specification Language) — used to systematically generate abstract interpreters for machine-code analysis, formalizing how transfer functions of instructions are derived.

These tools and techniques share a common pattern: they require a precise specification of instruction semantics in order to produce sound analyses of arbitrary binaries.

Capabilities Enabled

The combination of formal ISA semantics and binary-analysis frameworks enables a wide spectrum of applications, evidenced by the breadth of the related-work corpus:

  • Disassembly and decoding — N-version differential testing of disassemblers and reverse-engineering of instruction encodings rely on analyzers that can interpret ISA encodings.
  • Lifting and decompilation — Tools lift binaries into IRs to enable further analysis, transformation, or recompilation.
  • Formal verification of machine code — Frameworks verify properties of compiled code, including hypervisors, cryptographic routines, and capability-extended binaries.
  • Security analysis — SFI enforcement, capability verification, and axiomatic hardware-software security contracts all build on binary-analysis infrastructure.
  • Reverse engineering — Recovering protocol, algorithm, or architecture behavior from closed binaries.
  • Binary translation — Peephole superoptimization and retargeting depend on analyzers that can model instruction effects.

Relationship to ISA Specification

Binary analysis sits at the consumer side of ISA specification work. The specification languages, formal models, and processor-description frameworks catalogued in ISA-specification research (Sail, ASL, SLED, L3, LISA, nML, ISPS, TSL, and others) collectively supply the semantic substrate that binary analyzers require. The presence of entries such as Binary lifter, BinRec, Dagger, McSema, LLVM-MCtoLL, Remill, reopt, rev.ng, Capstone, QEMU, and zydis in the ISA-specification related-work index further illustrates how tightly coupled binary analysis is with ISA-level modeling.

See Also

LINKED ENTITIES

4 links
BAP (Binary Analysis Platform) IMPLEMENTS
Machine Code Decompilation IMPLEMENTS
ISA Semantics USES
TSL (Transfer Specification Language) USES

CITATIONS

5 sources
5 citations
[1] Binary analysis is the systematic study of machine code and executable binaries to recover structure, semantics, or higher-level properties when source code is unavailable. ISA Specification (related work index)
[2] Binary analysis is listed as a related topic in the ISA-specification related-work index, alongside Binary lifter, Instruction set architecture, CPU verification, and others. ISA Specification (related work index)
[3] BAP is a binary-analysis platform cited in the ISA-specification related-work corpus. ISA Specification (related work index)
[4] TSL is a system for generating abstract interpreters and is applied to machine-code analysis. ISA Specification (related work index)
[5] The ISA-specification related-work corpus includes machine-code verification, disassembly, lifting, decompilation, binary translation, and security applications, all of which rely on binary-analysis techniques grounded in formal ISA semantics. ISA Specification (related work index)