mirror of
https://github.com/radareorg/radare2.git
synced 2024-12-01 00:51:19 +00:00
82 lines
2.6 KiB
Plaintext
82 lines
2.6 KiB
Plaintext
WinDBG
|
|
======
|
|
|
|
The WinDBG support for r2 allows you to attach to VM running Windows
|
|
using a named socket file (will support more IOs in the future) to
|
|
debug a windows box using the KD interface over serial port.
|
|
|
|
Bear in mind that WinDBG support is still work-in-progress, and this is
|
|
just an initial implementation which will get better in time.
|
|
|
|
It is also possible to use the remote GDB interface to connect and
|
|
debug Windows kernels without depending on Windows capabilities.
|
|
|
|
------8<--------------8<------------------8<------------------------
|
|
|
|
Enable WinDBG support on Windows Vista and higher like this:
|
|
|
|
bcdedit /debug on
|
|
bcdedit /dbgsettings serial debugport:1 baudrate:115200
|
|
|
|
Or like this for Windows XP:
|
|
Open boot.ini and add /debug /debugport=COM1 /baudrate=115200:
|
|
|
|
[boot loader]
|
|
timeout=30
|
|
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
|
|
[operating systems]
|
|
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Debugging with Cable" /fastdetect /debug /debugport=COM1 /baudrate=57600
|
|
|
|
|
|
Configure the VirtualBox Machine like this:
|
|
|
|
Preferences -> Serial Ports -> Port 1
|
|
|
|
[V] Enable Serial Port
|
|
Port Number: [_COM1_______[v]]
|
|
Port Mode: [_Host_Pipe__[v]]
|
|
[v] Create Pipe
|
|
Port/File Path: [_/tmp/windbg.pipe____]
|
|
|
|
Or just spawn the VM with qemu like this:
|
|
|
|
$ qemu-system-x86_64 -chardev socket,id=serial0,\
|
|
path=/tmp/windbg.pipe,nowait,server \
|
|
-serial chardev:serial0 -hda Windows7-VM.vdi
|
|
|
|
|
|
Radare2 will use the 'windbg' io plugin to connect to a socket file
|
|
created by virtualbox or qemu. Also, the 'windbg' debugger plugin and
|
|
we should specify the x86-32 too. (32 and 64 bit debugging is supported)
|
|
|
|
$ r2 -a x86 -b 32 -D windbg windbg:///tmp/windbg.pipe
|
|
|
|
On Windows you should run the following line:
|
|
|
|
$ radare2 -D windbg windbg://\\.\pipe\com_1
|
|
|
|
At this point, we will get stuck here:
|
|
|
|
[0x828997b8]> pd 20
|
|
;-- eip:
|
|
0x828997b8 cc int3
|
|
0x828997b9 c20400 ret 4
|
|
0x828997bc cc int3
|
|
0x828997bd 90 nop
|
|
0x828997be c3 ret
|
|
0x828997bf 90 nop
|
|
|
|
In order to skip that trap we will need to change eip and run 'dc' twice:
|
|
|
|
dr eip=eip+1
|
|
dc
|
|
dr eip=eip+1
|
|
dc
|
|
|
|
Now the Windows VM will be interactive again. We will need to kill r2 and
|
|
attach again to get back to control the kernel.
|
|
|
|
In addition, the `dp` command can be used to list all processes, and
|
|
`dpa` or `dp=` to attach to the process. This will display the base
|
|
address of the process in the physical memory layout.
|