Most modern microcontrollers take measures to protect the contained software. As we have shown previously these protections are not perfect and can be bypassed.
This article is a repost. It was originally published at Tim Blazytko’s personal blog: https://synthesis.to/2021/08/10/obfuscation_detection.html. In a previous blog post, we already discussed that it is valuable to know which code areas are obfuscated; those areas often guard sensitive code and are worth a closer look.
Most modern microntrollers allow customers to protect their valuable code and data against unauthorized access using a feature called Readout Protection (ROP).
This article is a repost. It was originally published at Tim Blazytko’s personal blog: https://synthesis.to/2021/03/15/control_flow_analysis.html. Following my last blog post, I got a lot of questions about additional material on control-flow analysis.
This article is a repost. It was originally published at Tim Blazytko’s personal blog: https://synthesis.to/2021/03/03/flattening_detection.html. Commercial businesses and malware authors often use code obfuscation to protect specific code areas to impede reverse engineering.