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AntiCrack DotNet

A C# Project which Contains some Anti-Cracking, anti memory injection techniques, etc. (also feel free to open an issue for adding additional anti-debugging features, etc)

Damn

Anti Debugging

  • GetForegroundWindow (looks for bad active window names to check if it's a known debugger)

  • Debugger.IsAttached

  • Hide Threads From Debugger

  • IsDebuggerPresent

  • NtSetDebugFilterState

  • Page Guard Breakpoints Detection

  • NtQueryInformationProcess: ProcessDebugFlags, ProcessDebugPort, ProcessDebugObjectHandle

  • NtClose: Invalid Handle, Protected Handle

  • Parent Process Checking (Checks if parent are explorer.exe or cmd.exe)

  • Detection of Hardware Breakpoints

  • FindWindow (looks for bad window names)

  • GetTickCount

  • OutputDebugString

  • Crashing Non-Managed Debuggers with a Debugger Breakpoint

  • OllyDbg Format String Exploit

  • Patching DbgUiRemoteBreakin and DbgBreakPoint (Anti-Debugger Attaching)

Anti Virtualization

  • Detecting Any.run

  • Detecting Triage

  • Detecting Qemu.

  • Detecting Parallels.

  • Detecting Sandboxie

  • Detecting Comodo Container

  • Detecting Qihoo360 Sandbox

  • Detecting Cuckoo Sandbox

  • Detecting VirtualBox and VMware

  • Detecting HyperV

  • Detecting Emulation

  • Checking For Blacklisted Usernames

  • Detecting KVM

  • Detecting Wine

  • Checking For Known Bad VM File Locations

  • Checking For Known Bad Process Names

  • Checking For Ports on the system (useful if the VM or the sandbox have no ports connected)

  • Making Sandboxie Crash Your Application (no longer works)

  • Checking for devices created by VMs or Sandboxes

Anti Dll Injection

  • Patching LoadLibraryA

  • Patching LoadLibraryW

  • Taking Advantage of Binary Image Signature Mitigation Policy to prevent injecting Non-Microsoft Binaries.

  • Checking if any injected libraries are present (simple dlls path whitelist check)

Other Detections

  • Detecting if Unsigned Drivers are Allowed to Load

  • Detecting if Test-Signed Drivers are Allowed to Load

  • Detecting if Kernel Debugging are Enabled on the System

  • Detecting if Secure Boot are Enabled on the System

  • Detecting if Virtualization-Based Security is Enabled.

  • Detecting if Memory Integrity Protection is Enabled.

  • Detecting if the current assembly has been invoked.

Hooks Detection

  • Detecting Most Anti Anti-Debugging Hooking Methods on Common Anti-Debugging Functions by checking for Bad Instructions on Functions Addresses and it detects user-mode anti anti-debuggers like scyllahide, and it can also detect some sandboxes which uses hooking to monitor application behaviour/activity (like Sandboxie/Sandboxie Plus, Hybrid Analysis, Cuckoo Sandbox, and a lot of other online malware analysis websites/applications).

  • Detecting CLR Functions Hooking (like harmony hooks).

Notice

This Project are created for educational purposes only, also this project are licensed under MIT License.