Extraction Meets Distillation - Cryptanalytic Techniques to Recover Parameters from a Deep Neural Network

We study fully connected neural-network reconstruction by combining cryptanalytic weight-direction extraction with learning from predicted labels. We adapt a ReLU extraction implementation to Leaky ReLU, compare sign-search methods, and estimate biases and output layers. We prove conditional boun...

Extracting CNNs in the Unknown-Architecture and Feedback-Agnostic Setting

This paper studies the cryptanalytic extraction of convolutional neural networks CNNs. Existing cryptanalytic extraction attacks on CNNs assume that the network architecture is known, and try to recover model parameters.In this paper, we prove for the first time that the architecture assumption c...

Delinea Thycotic Secret Server Dump

This module exports and decrypts Secret Server credentials to a CSV file; it is intended as a post-exploitation module for Windows hosts with Delinea/Thycotic Secret Server installed. Master Encryption Key MEK and associated IV values are decrypted from encryption.config using a static key baked...