Aperi'Solve

Try it now: https://www.aperisolve.com

Support Aperi'Solve:

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Aperi'Solve is an open-source steganalysis web platform that performs automated analysis on images to detect and extract hidden data using common steganography tools and techniques.

Table of contents

• Key features
• Quick start (Docker)
• Development
• Configuration & environment variables
• Architecture
• Troubleshooting & tips
• Roadmap
• Contributing

Key features

• Visualize each bit layer (LSB and other layers) per image channel (R/G/B/Alpha).
• Browse and download each bit-layer image.
• Integrates and displays outputs from:
  • zsteg (LSB text/data extraction)
  • steghide (extraction with password)
  • outguess (extraction with password)
  • openstego (extraction with password)
  • exiftool (metadata and geolocation)
  • binwalk (embedded archives)
  • foremost (carved files)
  • pngcheck
  • strings
• Worker queue architecture for offloading heavy/slow analyzers (Redis + background workers).
• Results stored for later browsing and download.

Quick start (Docker)

In case you want to host your own version of https://www.aperisolve.com/.

Recommended: Docker + Docker Compose.

Clone and start the full stack (production-like):

git clone https://github.com/Zeecka/AperiSolve.git
cd AperiSolve
cp .env.example .env
docker compose up -d

Default: http://localhost:5000/

Development

Development compose:

# development environment (hot reload and local volumes)
docker compose -f compose.dev.yml up --build

Useful commands:

# Stop and remove containers, networks and volumes (results are stored in a volume)
docker compose down -v

# Enter web container shell
docker exec -it aperisolve-web bash

# Enter Postgres shell (from host)
docker exec -it postgres psql -U aperiuser -d aperisolve

# Backup all uploaded files
docker cp -r aperisolve-web:/aperisolve/results /path/to/backup/location

# Backup a single uploaded file
docker cp aperisolve-web:/aperisolve/results/filename.ext /path/to/backup/filename.ext

Warning

If switching between dev and production compose files, remove the results directory or mounted volume to avoid conflicts:

rm -rf aperisolve/results

Configuration & environment variables

The application can be configured with the .env file:

# Application configuration
MAX_CONTENT_LENGTH=1048576  # Max uploaded image size (bytes)
MAX_PENDING_TIME=600  # Timeout for analyzer (seconds)
MAX_STORE_TIME=259200  # Delay until deleted from server
CLEAR_AT_RESTART=1  # Reset database and results at application restart/crash
SKIP_IHDR_FILL=0  # Skip IHDR database fill (gain times at startup but reduce results)

# Flask configuration
FLASK_DEBUG=0
FLASK_ENV=development

# Redis configuration
RQ_DASHBOARD_REDIS_URL=redis://redis:6379/0

# Database configuration
POSTGRES_DB=aperisolve
POSTGRES_USER=aperiuser
POSTGRES_PASSWORD=aperipass
DB_URI=postgresql://aperiuser:aperipass@postgres:5432/aperisolve

# Sentry configuration
SENTRY_DSN=https://your-dsn@sentry.io/project-id
SENTRY_TRACES_SAMPLE_RATE=0.1
SENTRY_PROFILES_SAMPLE_RATE=0.1
SENTRY_RELEASE=1.0.0
SENTRY_ENVIRONMENT=development

Note

If using Docker Compose, defaults are set in the compose files. For production deployments, set secure secrets via your orchestrator or environment.

Architecture

• Flask web framework
• Background workers that run analyzers (queue via Redis)
• PostgreSQL stores image metadata and job statuses
• Docker-based deployment for isolation of analyzers and services

This separation keeps heavy tools (binwalk, foremost, zsteg, etc.) isolated and avoids blocking the web worker.

Troubleshooting & tips

• If analyzers don't produce output, check worker logs:

  docker compose logs -f aperisolve-worker
  

• To force re-analysis, remove results for the image (both file and in database) and re-submit the job.
• Ensure system packages needed by native tools (binwalk, foremost) are available in the analyzer containers or host image.

Roadmap

• [Bug] Duplicate key value violates unique constraint "submission_pkey"
• [Enhancement] Server continuous deployment
• [Feature] Zsteg: full extraction (--all) and download of discovered files (mp3, etc.)
• [Feature] Mobile-friendly UI / test on mobile
• [Feature] i18n (internationalization)
• [Feature] Rootless / unprivileged analyzers

See Issues for more!

Contributing

See CONTRIBUTING.md.

Security

Warning

If you discover a security issue, please report it privately to the repository owner instead of opening a public issue.

Credits

Acknowledgements:

• Thanks to contributors and the open-source community for the tools integrated (zsteg, steghide, outguess, openstego, exiftool, binwalk, foremost, pngcheck, strings, ...).