Aletheia is an open source image steganalysis tool for the detection of hidden messages in images. To achieve its objectives, Aletheia uses state-of-the-art machine learning techniques. It is capable of detecting several different steganographic methods as for example LSB replacement, LSB matching and some kind of adaptive schemes.

• Install
• Statistical attacks to LSB replacement
• Machine Learning based attacks
• Using pre-built models
• The ATS attack
• Brute-force password attack
• Examples:
  • Steganalysis of OpenPuff
  • Steganalysis of OpenStego
  • Steganalysis of F5
  • Steganalysis of Steghide
• References