From f24860842d3b0ccb125333d0238c82c8ad1a846c Mon Sep 17 00:00:00 2001
From: Schmenn <bensholtmann@googlemail.com>
Date: Fri, 8 Jan 2021 18:28:09 +0100
Subject: [PATCH] Project Structure Setup

Command Handler and Expanding-Video command available.
---
 .gitignore                  |   3 ++
 exploits.go                 | 105 ++++++++++++++++++++++++++++++++++++
 exploits/expanding-video.go |  53 ++++++++++++++++++
 go.mod                      |   3 ++
 4 files changed, 164 insertions(+)
 create mode 100644 exploits.go
 create mode 100644 exploits/expanding-video.go
 create mode 100644 go.mod

diff --git a/.gitignore b/.gitignore
index 66fd13c..31ccabd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,5 +11,8 @@
 # Output of the go coverage tool, specifically when used with LiteIDE
 *.out
 
+# Testing Files used for checking the programs functionality
+*.webm
+
 # Dependency directories (remove the comment below to include it)
 # vendor/
diff --git a/exploits.go b/exploits.go
new file mode 100644
index 0000000..80376fd
--- /dev/null
+++ b/exploits.go
@@ -0,0 +1,105 @@
+package main
+
+import (
+	"fmt"
+	"github.com/Schmenn/discord-exploits/exploits"
+	"os"
+	"strings"
+)
+
+var (
+	quiet     bool   = false
+	inputFile string = "no input file provided"
+	mode      string = "no mode specified"
+)
+
+func main() {
+	args := os.Args[1:]
+	handleArgs(args, &quiet)
+	//fmt.Println(quiet)
+	if !quiet {
+		welcome()
+		//exploits.RunExpandingVideoTask()
+	}
+
+	fmt.Println(inputFile)
+	fmt.Println(mode)
+
+	initCommand(inputFile, mode)
+}
+
+func welcome() {
+	fmt.Println("Discord Exploits --- made by Schmenn")
+	fmt.Println("                  _       _ _")
+	fmt.Println("                 | |     (_) |")
+	fmt.Println("   _____  ___ __ | | ___  _| |_ ___")
+	fmt.Println("  / _ \\ \\/ / '_ \\| |/ _ \\| | __/ __|")
+	fmt.Println(" |  __/>  <| |_) | | (_) | | |_\\__ \\")
+	fmt.Println("  \\___/_/\\_\\ .__/|_|\\___/|_|\\__|___/")
+	fmt.Println("           | |")
+	fmt.Println("           |_|")
+}
+
+func handleArgs(args []string, quiet *bool) {
+	var skipArg int = 0
+Loop:
+	if skipArg > 0 {
+		skipArg = skipArg - 1
+		goto Loop
+	} else {
+		for i, s := range args {
+			switch s {
+			// quiet
+			case "-q":
+				*quiet = true
+			case "--quiet":
+				*quiet = true
+
+			// Input File
+			case "-i":
+				skipArg = skipArg + 1
+				inputFile = args[i+1]
+
+			// Mode Selection
+			case "-m":
+				skipArg = skipArg + 1
+				mode = args[i+1]
+
+			// Help Message
+			case "-h":
+				help()
+				*quiet = true
+				return
+
+			default:
+				//fmt.Println("unused argument provided, noone cares tho")
+				break
+			}
+		}
+	}
+}
+
+func help() {
+	fmt.Println("Discord-Exploits Help")
+	fmt.Println("")
+	fmt.Println("-q         doesn't show welcome screen")
+	fmt.Println("-i <file>  provide input file")
+	fmt.Println("-m <mode>  provide a mode")
+	fmt.Println("")
+	fmt.Println("modes:")
+	fmt.Println("      expandingvideo   takes input video (.webm) and edits it so discord will keep making it longer")
+	fmt.Println("      virusimage   takes an image (.png) and makes other users' windows defender think it's a virus (not yet implemented)")
+}
+
+func initCommand(inputFile string, mode string) {
+	switch strings.ToLower(mode) {
+	case "expandingvideo":
+		if strings.HasSuffix(inputFile, ".webm") {
+			fmt.Println("editing video.")
+			exploits.RunExpandingVideoTask(inputFile)
+			fmt.Println("completed task.")
+		} else {
+			fmt.Println("File is not a webm, check -h")
+		}
+	}
+}
diff --git a/exploits/expanding-video.go b/exploits/expanding-video.go
new file mode 100644
index 0000000..c2fd67f
--- /dev/null
+++ b/exploits/expanding-video.go
@@ -0,0 +1,53 @@
+package exploits
+
+import (
+	"bytes"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"math/rand"
+)
+
+// RunExpandingVideoTask edits file
+func RunExpandingVideoTask(fileName string)  {
+
+	data, err := ioutil.ReadFile(fileName)
+	check(err)
+	index := bytes.Index(data, []byte("\x44\x89\x88"))
+	if index == -1{
+		fmt.Println("could not find the part of the file that needs to be modified, exiting")
+		return
+	}
+
+	data[index+3] = 63
+	data[index+4] = 240
+	data[index+5] = 0
+	data[index+6] = 0
+	data[index+7] = 0
+	data[index+8] = 0
+	data[index+9] = 0
+	data[index+10] = 0
+
+	name := CreateName("webm")
+
+	fmt.Println(name)
+
+	ioutil.WriteFile(name, data, os.FileMode(int(0777)))
+
+}
+
+// CreateName generates a random file name
+func CreateName(extension string) string {
+	charset := "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+	b := make([]byte, 6)
+	for i := range b {
+		b[i] = charset[rand.Intn(len(charset))]
+	}
+	return string(b)+"."+extension
+}
+
+func check(e error) {
+	if e != nil {
+		panic(e)
+	}
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..56441f2
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module github.com/Schmenn/discord-exploits
+
+go 1.15