Tiny cute emulator plugin for IDA based on unicorn.
uEmu is a tiny cute emulator plugin for IDA based on unicorn engine.
Supports following architectures out of the box: x86, x64, ARM, ARM64, MIPS, MIPS64
MSR S3_x, X0
for ARM64)idapyswitch
brew install unicorn
to install Unicorn binariespip install unicorn
to install Unicorn python bindingsFile / Script file...
or ALT+F7
in IDA to load uEmu.py
Optionally uEmu can be loaded automatically as IDA plugin. In this case put it into [IDA]/Plugins folder and change USE_AS_SCRIPT
to False
inside uEmu.py
ALT
/OPTION
to specify a number)Start emulation from cursor. It is necessary to provide initial CPU context first (see Update CPU Context) After that all segments from IDA database will be mapped to emulator (initialized data will be copied as well).
Execute code until code or memory breakpoint is reached or there is an event which requires user action.
Perform a single step execution. Hold ALT
/OPTION
to specify number of steps to perform.
When emulation is in progress this command can be used to interrupt execution.
Resets emulator instance and unmaps all memory regions.
You can use IDA breakpoints to indicate locations where emulation should be interrupted. This includes code and memory breakpoints. Usually used together with Run command.
When emulator needs to access memory which is not yet mapped, plugin will show a following dialog.
When emulator runs into unknown instruction it is possible to skip it and restore CPU context manually.
Just a panel to control execution.
Current CPU context.
Every time emulation stops, changed registers will be highlighted. Registers can be displayed in 1, 2 or 3 columns via popup menu.
It is possible to update CPU context via popup menu (see below).
Current CPU Extended context.
Every time emulation stops, changed registers will be highlighted. Registers can be displayed in 1, 2 or 3 columns via popup menu.
It is possible to update CPU context via popup menu (see below).
Use this view to observe memory regions for specified address and size. Comment will be displayed in a title for convenience.
Every time emulation stops, changed memory blocks will be highlighted.
Register Values can be changed individually or all at once with JSON file via popup menu. Current context can also be saved in JSON file for future use.
Apart from all the functions listed in Popup Menu, there are couple of new commands.
Display all mapped regions. Use popup menu to display memory for particular region or dump it to a file.
This command tries to sync IDA segments with mapped memory by creating new mappings or merging with existing ones if possible. This helps to add new IDA segments to emulator in runtime without restarting emulator.
Load uEmu state from file.
Save uEmu state to file. Please note that only registers defined in a plugin are saved.
It is also possible to add new functionality or build your project on top of uEmu using extension system. Please find description with example here