I think it's from IDA. For example see screenshots here: https://www.hex-rays.com/products/ida/6_0/ https://www.hex-rays.com/products/ida/6_0/. There are simil

I think it's from IDA. For example see screenshots here: https://www.hex-rays.com/products/ida/6_0/ https://www.hex-rays.com/products/ida/6_0/. There are similar reverse engineering tools that are open source such as: - Ghidra: https://ghidra-sre.org/ https://ghidra-sre.org/ - radare2: https://rada.re/n/radare2.html https://rada.re/n/radare2.html