2021-09-20 18:20:01 +02:00

53 lines
2.1 KiB
C#

/*
Copyright (C) 2014-2019 de4dot@gmail.com
This file is part of dnSpy
dnSpy is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
dnSpy is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
*/
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using dnSpy.Contracts.Debugger;
using dnSpy.Contracts.Debugger.AntiAntiDebug;
using dnSpy.Contracts.Debugger.DotNet.Mono;
namespace dnSpy.Debugger.DotNet.Mono.AntiAntiDebug {
// The native API funcs won't return true so disable the fixes
abstract class DisableAntiAntiDebugCode : IDbgNativeFunctionHook {
static bool TryGetInternalRuntime(DbgProcess process, [NotNullWhen(true)] out DbgMonoDebugInternalRuntime? runtime) {
runtime = null;
var dbgRuntime = process.Runtimes.FirstOrDefault();
Debug2.Assert(dbgRuntime is not null);
if (dbgRuntime is null)
return false;
runtime = dbgRuntime.InternalRuntime as DbgMonoDebugInternalRuntime;
return runtime is not null;
}
public bool IsEnabled(DbgNativeFunctionHookContext context) => TryGetInternalRuntime(context.Process, out _);
public void Hook(DbgNativeFunctionHookContext context, out string? errorMessage) => errorMessage = null;
}
[ExportDbgNativeFunctionHook("kernel32.dll", "CheckRemoteDebuggerPresent", new DbgArchitecture[0], new[] { DbgOperatingSystem.Windows }, 0)]
sealed class DisableAntiCheckRemoteDebuggerPresent : DisableAntiAntiDebugCode {
}
[ExportDbgNativeFunctionHook("kernel32.dll", "IsDebuggerPresent", new DbgArchitecture[0], new[] { DbgOperatingSystem.Windows }, 0)]
sealed class DisableAntiIsDebuggerPresent : DisableAntiAntiDebugCode {
}
}