Backdoor scanner server

scanner.go

// Created by galehdotid
// 2022-02-08
// wget -O file.go https://gist.githubusercontent.com/galehrizky/7d0947ebc204a8766371d62602632549/raw/0bb4c2feefe0cea40c6fcab630948102c7e9c29e/scanner.go
// go build file.go
// ./file -dir

package main

import (
	"flag"
	"fmt"
	"io/ioutil"
	"log"
	"os"
	"path/filepath"
	"regexp"
)

type Color string

const (
	ColorBlack  Color = "\u001b[30m"
	ColorRed          = "\u001b[31m"
	ColorGreen        = "\u001b[32m"
	ColorYellow       = "\u001b[33m"
	ColorBlue         = "\u001b[34m"
	ColorReset        = "\u001b[0m"
)

func main() {
	directory := flag.String("dir", "-dir", "set your directory want to check ")
	flag.Parse()

	flagset := make(map[string]bool)
	flag.Visit(func(f *flag.Flag) { flagset[f.Name] = true })

	if flagset["dir"] {
		file := readDirectory(*directory)
		f, err := os.Create("backdoor-potensial.txt")

		if err != nil {
			log.Fatal(err)
		}
		for _, v := range file {
			if isDirectory(v) {
				setYourColor(ColorYellow, "[-] Directory :"+v)
			} else {
				setYourColor(ColorBlue, "[+] File :"+v)
				word := backdoorWord()
				content := readFile(v)
				matched, _ := regexp.MatchString(word, content)
				// Test the result.
				if matched {
					setYourColor(ColorGreen, "[+] Found match word :"+v)
					f.WriteString(v + "\n")
				}
			}
		}
	} else {
		setYourColor(ColorRed, "[!] Please put your directory !")
	}
}

func readDirectory(Directory string) []string {
	var files []string

	root := Directory
	err := filepath.Walk(root, func(path string, info os.FileInfo, err error) error {
		files = append(files, path)
		return nil
	})
	if err != nil {
		panic(err)
	}

	return files
}

func readFile(Files string) string {
	content, err := ioutil.ReadFile(Files)

	if err != nil {
		log.Fatal(err)
	}
	return string(content)
}

func isDirectory(path string) bool {
	fileInfo, err := os.Stat(path)
	if err != nil {
		return false
	}

	return fileInfo.IsDir()
}

func backdoorWord() string {
	word := "indoxploit|Adminer|b374k|x1njection|exploit-db|b374k"
	return word
}

func setYourColor(color Color, message string) {
	fmt.Println(string(color), message, string(ColorReset))
}