mirror of
https://github.com/hakril/PythonForWindows
synced 2026-06-08 14:31:45 +00:00
Clement Rouault
144 lines
5.4 KiB
Markdown
144 lines
5.4 KiB
Markdown
# PythonForWindows
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PythonForWindows is a base of code aimed to make interaction with `Windows` (on X86/X64) easier (for both 32 and 64 bits Python).
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Its goal is to offer abstractions around some of the OS features in a (I hope) pythonic way.
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It also tries to make the barrier between python and native execution thinner in both ways.
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There is no external dependencies but it relies heavily on the `ctypes` module.
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Some of this code is clean (IMHO) and some parts are just a wreck that works for now.
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Let's say that the codebase evolves with my needs and my curiosity.
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Complete online documentation is available [here][ONLINE_DOC]
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You can find some examples of code in the [samples directory][SAMPLE_DIR] or [online][ONLINE_SAMPLE].
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Parts of PythonForWindows are used in the [LKD project][LKD_GITHUB].
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## Overview
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### Processes / Threads
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PythonForWindows offers objects around processes and allows you to:
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- Retrieve basic process informations (pid, name, ppid, bitness, ...)
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- Perform basic interprocess operation (allocation, create thread, read/write memory)
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- Explore the PEB (Process Environment Block)
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- Execute `native` and `Python` code in the context of a process.
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I try my best to make those features available for every cross-bitness processes (`32 <-> 64` in both ways).
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This involves relying on non-documented `Windows` functions/behaviours and also injecting code in the 64bits world of a `Syswow64` process.
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All those operations are also available for the `current_process`.
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You can also make some operation on threads (suspend/resume/wait/get(or set) context/ kill)
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```python
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>>> import windows
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>>> windows.current_process.bitness
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32
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>>> calc = [p for p in windows.system.processes if p.name == "calc.exe"][0]
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>>> calc
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<WinProcess "calc.exe" pid 6960 at 0x37391f0>
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>>> calc.bitness
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64
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>>> calc.peb.modules[:3]
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[<RemoteLoadedModule64 "calc.exe" at 0x3671e90>, <RemoteLoadedModule64 "ntdll.dll" at 0x3671030>, <RemoteLoadedModule64 "kernel32.dll" at 0x3671080>]
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>>> k32 = calc.peb.modules[2]
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>>> hex(k32.pe.exports["CreateFileW"])
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'0x7ffee6761550L'
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>>> calc.threads[0]
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<WinThread 3932 owner "calc.exe" at 0x3646350>
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>>> hex(calc.threads[0].context.Rip)
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'0x7ffee68b54b0L'
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>>> calc.execute_python("import os")
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True
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>>> calc.execute_python("exit(os.getpid() + 1)")
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# execute_python raise if process died
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Traceback (most recent call last):
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...
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ValueError: Unknown exit code 0xc000004bL
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>>> calc
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<WinProcess "calc.exe" pid 6960 (DEAD) at 0x37391f0>
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>>> calc.exit_code
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6961L
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```
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### IAT Hook
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This codebase is born from my need to have IAT hooks implemented in Python.
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So the features is present (See [online documentation][ONLINE_IATHOOK] about IAT hooks).
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### Winproxy
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A wrapper around some Windows functions. Arguments name and order are the same,
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but some have default values and the functions raise exception on call error (I don't like 'if' around all my call).
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### Native execution
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To make the barrier between `native` and `Python` code,
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PythonForWindows allows you to create native function callable from Python (thanks `ctypes`) and also embed
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a simple x86/x64 assembler.
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```python
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>>> import windows.native_exec.simple_x86 as x86
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>>> code = x86.MultipleInstr()
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>>> code += x86.Mov("EAX", 41)
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>>> code += x86.Inc("EAX")
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>>> code += x86.Ret()
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>>> code.get_code()
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'\xc7\xc0)\x00\x00\x00@\xc3'
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# Create a function that takes no parameters and return an uint
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>>> f = windows.native_exec.create_function(code.get_code(), [ctypes.c_uint])
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>>> f()
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42L
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```
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### Wintrust
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To easily script some signature check script, PythonForWindows implements some wrapper functions around ``wintrust.dll``
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```python
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>>> import windows.wintrust
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>>> windows.wintrust.is_signed(r"C:\Windows\system32\ntdll.dll")
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True
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>>> windows.wintrust.is_signed(r"C:\Windows\system32\python27.dll")
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False
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>>> windows.wintrust.full_signature_information(r"C:\Windows\system32\ntdll.dll")
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SignatureData(signed=True,
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catalog=u'C:\\Windows\\system32\\CatRoot\\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\\Package_35_for_KB3128650~31bf3856ad364e35~amd64~~6.3.1.2.cat',
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catalogsigned=True, additionalinfo=0L)
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>>> windows.wintrust.full_signature_information(r"C:\Windows\system32\python27.dll")
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SignatureData(signed=False, catalog=None, catalogsigned=False, additionalinfo=TRUST_E_NOSIGNATURE(0x800b0100L))
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```
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### WMI
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To extract/play with even more information about the system, PythonForWindows is able to perform WMI request.
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```python
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>>> import windows
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>>> windows.system.wmi.select
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<bound method WmiRequester.select of <windows.winobject.wmi.WmiRequester object at 0x036BA590>>
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>>> windows.system.wmi.select("Win32_Process", ["Name", "Handle"])[:4]
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[{'Handle': u'0', 'Name': u'System Idle Process'}, {'Handle': u'4', 'Name': u'System'}, {'Handle': u'412', 'Name': u'smss.exe'}, {'Handle': u'528', 'Name': u'csrss.exe'}]
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# Get WMI data for current process
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>>> wmi_cp = [p for p in windows.system.wmi.select("Win32_Process") if int(p["Handle"]) == windows.current_process.pid][0]
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>>> wmi_cp["CommandLine"], wmi_cp["HandleCount"]
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(u'"C:\\Python27\\python.exe"', 227)
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```
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### Other stuff (see doc / samples)
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- Registry
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- Network
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- Services
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- COM
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[LKD_GITHUB]: https://github.com/sogeti-esec-lab/LKD/
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[SAMPLE_DIR]: https://github.com/hakril/PythonForWindows/tree/master/samples
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[ONLINE_DOC]: http://hakril.github.io/PythonForWindows/
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[ONLINE_SAMPLE]: http://hakril.github.io/PythonForWindows/sample.html
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[ONLINE_IATHOOK]: http://hakril.github.io/PythonForWindows/iat_hook.html |