# dynStruct

dynStruct is a Malware Analysis product. It runs on-premises. Pricing is free.

dynStruct is a tool for monitoring memory accesses of an ELF binary and recovering structures of the original code.

Checked November 2026.

## What is dynStruct?

dynStruct is a tool using dynamoRio to monitor memory accesses of an ELF binary via a data gatherer, and use this data to recover structures of the original code. dynStruct can also be used to quickly find where and by which function a member of a structure is write or read.

Papers: dynStruct was the subject of a master thesis and a publication.

Requirements: Data gatherer, CMake >= 2.8, DynamoRIO (avoid the last release, recommended version at DynamoRIO cronbuild or build 7.91.18109).

Structure recovery and web interface: Python3, Capstone, Bottle.

Setup:
- Data Gatherer: Set the environment variable DYNAMORIO_HOME to the absolute path of your DynamoRIO installation. Execute build.sh. To compile dynStruct for a 32bits target on a 64bits os, execute build.sh 32.
- Structure recovery and web interface: Install dependencies for dynStruct.py using 'pip3 install -r requirements.txt'.

Data gatherer Usage: drrun -opt_cleancall 3 -c <dynStruct_path> <dynStruct_args> -- <prog>

Tags: ELF, Binary Analysis, Memory Forensics

## Quick facts

- Category: [Security Operations](https://cybersectools.com/categories/security-operations) · [Malware Analysis](https://cybersectools.com/categories/malware-analysis)
- Deployment: On-Premises
- Company size fit: Mid-Market, Enterprise
- Pricing model: Free
- GitHub stars: 324
- Website: github.com

## Where it ranks

No shortlist covers this product's category yet. The closest is [Best MDR Solutions for Business](https://cybersectools.com/shortlists/best-mdr-solutions).

## dynStruct FAQ

### What is dynStruct?

dynStruct is a product in the Malware Analysis category. It covers ELF, Binary Analysis and Memory Forensics.

### What is the pricing for dynStruct?

dynStruct is free. Download and setup instructions are at https://github.com/ampotos/dynStruct/.

### What are alternatives to dynStruct?

Alternatives to dynStruct listed on CybersecTools:

1. [ReversingLabs Spectra Analyze](https://cybersectools.com/tools/reversinglabs-spectra-analyze) - Malware analysis platform for SOC teams with binary analysis and threat detection (Commercial)
2. [Nightwing DejaVM](https://cybersectools.com/tools/nightwing-dejavm) - Whole-system emulation environment for software dev, debugging, testing & security (Commercial)
3. [Joe Sandbox DEC](https://cybersectools.com/tools/joe-sandbox-dec) - Plugin that decompiles malware PE files into readable C code using hybrid analysis. (Commercial)
4. [Threatray](https://cybersectools.com/tools/threatray) - AI-driven binary code analysis platform for malware detection & intelligence. (Commercial)
5. [Zenyard RE Agent](https://cybersectools.com/tools/zenyard-re-agent) - AI agent for in-depth binary analysis and reverse engineering assistance. (Commercial)

Compare all dynStruct alternatives at [https://cybersectools.com/alternatives/dynstruct](https://cybersectools.com/alternatives/dynstruct)

### What deployment and organization size does dynStruct fit?

dynStruct is available as on-premises software. It is listed for mid-market companies and enterprises. It is free.

## Compare dynStruct with similar solutions

- [dynStruct vs ReversingLabs Spectra Analyze](https://cybersectools.com/compare/dynstruct-vs-reversinglabs-spectra-analyze)
- [dynStruct vs Nightwing DejaVM](https://cybersectools.com/compare/dynstruct-vs-nightwing-dejavm)
- [dynStruct vs Joe Sandbox DEC](https://cybersectools.com/compare/dynstruct-vs-joe-sandbox-dec)

All alternatives to dynStruct: [/alternatives/dynstruct](https://cybersectools.com/alternatives/dynstruct)

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Source: https://cybersectools.com/tools/dynstruct

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