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https://github.com/geohot/qira

QEMU Interactive Runtime Analyser
https://github.com/geohot/qira

Last synced: 2 days ago
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QEMU Interactive Runtime Analyser

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README 

        
# QIRA



[![Build Status](https://travis-ci.org/geohot/qira.svg?branch=master)](https://travis-ci.org/geohot/qira)



* QIRA is a competitor to strace and gdb

* See http://qira.me/ for high level usage information

* All QIRA code is released under MIT license

* Other code in this repo released under its respective license



## Supported OS




Ubuntu 14.04 and 16.04 supported out of the box.

18.04 is having a problem with building QEMU

See forked QEMU source at https://github.com/geohot/qemu/tree/qira to fix.



Non Linux hosts may run the rest of QIRA, but cannot run the QEMU tracer.

Very limited support for Mac OS X and Windows natively.

The Docker image in docker should work everywhere.




## Installing release



See instructions on [qira.me](http://qira.me/) to install 1.3



## Installing trunk




cd ~/

git clone https://github.com/geohot/qira.git

cd qira/

./install.sh




## Installation Extras



* ./fetchlibs.sh will fetch the libraries for i386, armhf, armel, aarch64, mips, mipsel, and ppc

* ./tracers/pin_build.sh will install the QIRA PIN plugin, allowing --pin to work



## Releases



* v1.3 -- Update using pinned python packages

* v1.2 -- Many many changes. Forced release due to v1.0 not working anymore.

* v1.1 -- Support for names and comments. Static stuff added. Register colors.

* v1.0 -- Perf is good! Tons of bugfixes. Quality software. http://qira.me/

* v0.9 -- Function indentation. haddrline added (look familiar?). Register highlighting in hexdump.

* v0.8 -- Intel syntax! Shipping CDA (cda a.out) and experimental PIN backend. Bugfixes. Windows support?

* v0.7 -- DWARF support. Builds QEMU if distributed binaries don't work. Windows IDA plugin.

* v0.6 -- Added changes before webforking. Highlight strace addresses. Default on analysis.

* v0.5 -- Fixed regression in C++ database causing wrong values. Added PowerPC support. Added "A" button.

* v0.4 -- Using 50x faster C++ database. strace support. argv and envp are there.

* v0.3 -- Built in socat, multiple traces, forks (experimental). Somewhat working x86-64 and ARM support

* v0.2 -- Removed dependency on mongodb, much faster. IDA plugin fixes, Mac version.

* v0.1 -- Initial release



## UI




At the top, you have 4 boxes, called the controls.

  Blue = change number, grey = fork number

  red = instruction address (iaddr), yellow = data address (daddr).



On the left you have the vtimeline, this is the full trace of the program.

  The top is the start of the program, the bottom is the end/current state.

  More green = deeper into a function.

  The currently selected change is blue, red is every passthrough of the current iaddr

  Bright yellow is a write to the daddr, dark yellow is a read from the daddr.

  This color scheme is followed everywhere.



Below the controls, you have the idump, showing instructions near the current change

Under that is the regviewer, datachanges, hexeditor, and strace, all self explanatory.




## Mouse Actions

Click on vtimeline to navigate around. Right-click forks to delete them. Click on data (or doubleclick if highlightable) to follow in data. Right-click on instruction address to follow in instruction.



## Keyboard Shortcuts in web/client/controls.js


j -- next invocation of instruction

k -- prev invocation of instruction



shift-j -- next toucher of data

shift-k -- prev toucher of data



m -- go to return from current function

, -- go to start of current function



z -- zoom out max on vtimeline



left  -- -1 fork

right -- +1 fork

up    -- -1 clnum

down  -- +1 clnum



esc -- back



shift-c -- clear all forks



n -- rename instruction

shift-n -- rename data

: -- add comment at instruction

shift-: -- add comment at data



g -- go to change, address, or name

space -- toggle flat/function view



p -- analyze function at iaddr

c -- make code at iaddr, one instruction

a -- make ascii at iaddr

d -- make data at iaddr

u -- make undefined at iaddr




## Installation on Windows (experimental)



* Install git and python 2.7.9

* Run install.bat



## Session state


clnum -- selected changelist number

forknum -- selected fork number

iaddr -- selected instruction address

daddr -- selected data address



cview -- viewed changelists in the vtimeline

dview -- viewed window into data in the hexeditor

iview -- viewed address in the static view



max_clnum -- max changelist number for each fork

dirtyiaddr -- whether we should update the clnum based on the iaddr or not

flat -- if we are in flat view




## Static



QIRA static has historically been such a trash heap it's gated behind -S. QIRA should not be trying to compete with IDA.



User input and the actual traces of the program should drive creation of the static database. Don't try to recover all CFGs, only what ran.



The basic idea of static is that it exists at change -1 and doesn't change ever. Each address has a set of tags, including things like name.