What is Radare2 in Kali Linux?
Radare2 is an open source set of tools for reverse-engineering and analysis of binary files (among other things, for example debugging). In this article we will cover two tools: rasm2 and r2. Let’s take a quick look to rasm2. It is used to assemble or disassemble files or hexpair strings.
What is Radare2?
Radare2 is an open-source framework for reverse engineering and binaries analysis which implements a rich command-line interface for disassembling, analyzing data, patching binaries, comparing data, searching, replacing, visualizing and more. It has great scripting capabilities, it runs on all major platforms.
How do I run Radare2 on Windows?
I have found that the windows binary is the way to go for this. to use it, unpack the downloaded binary, then open CMD/PowerShell in the radare2 directory, then run bin/radare2.exe or bin/r2.
Can you set radare2 to run command at Breakpoint hit?
Command at breakpoint hit. You can set radare2 to run a command automatically when hitting a breakpoint via dbc. This can be any sort of command, simple or complex. Each breakpoint can have its own command!
Why does each breakpoint have its own command?
Each breakpoint can have its own command! This can be very useful when you have a breakpoint within a loop which changes a register or an area of memory. You can keep hitting the breakpoint and see how the register or memory region gets updated.
How to debug radare2 in read only mode?
There are multiple ways to do this. One way is to load it up directly in debug mode via the d flag. If /bin/ls is already opened in read-only mode, you can reopen it via ood, or the alias doo. Any flags you set will be preserved. All debugging-related commands are prefixed with d, which is easy to remember and quite handy.
How to trace syscalls in radare2 explorations?
Instead of setting a breakpoint at an address and then continuing execution with dc, you can instead enter dcu and execution will continue until that address or flag. You can continue execution until a specific system call via dcs . You can trace all syscalls with dcs*.