CANToolz is an open-source framework for working with CAN bus. In this presentation we will demonstrate use-cases and examples of black-box analyses of CAN network and ECU devices. This framework based on modules and libraries that can be used all together in different combos to get exactly what researcher/tester needs. 1. What tester could do over OBD2 port? UDS scanning, sub-function scanning Tester tool testing and traffic analysis 2. CAN Switch/Hub scanning What messages could be routed from one bus to another? 3. Understanding the traffic How to find "what means what" Finding control frames Finding status frames 4. Running MitM DIY: anti-thief system Also, you could use CANToolz for integration/security tests as part of developing process (SDLC), and we will cover this part as well.