├── BlockOpenHandle
    ├── BlockOpenHandle.cpp
    ├── BlockOpenHandle.sln
    ├── BlockOpenHandle.vcxproj
    ├── BlockOpenHandle.vcxproj.filters
    └── BlockOpenHandle.vcxproj.user
└── README.md


/BlockOpenHandle/BlockOpenHandle.cpp:
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 1 | #include <Windows.h>
 2 | #include <stdio.h>
 3 | #include <Sddl.h>
 4 | 
 5 | void SetProcessSecurityDescriptor() {
 6 |     // Define a security descriptor string in SDDL format
 7 |     // The following SDDL string denies all access to the process, except for the SYSTEM account and the process owner
 8 |     LPCWSTR sddl = L"D:P"
 9 |         L"(D;OICI;GA;;;WD)"  // Deny all access to the "World" (Everyone)
10 |         L"(A;OICI;GA;;;SY)"  // Allow all access to the "System"
11 |         L"(A;OICI;GA;;;OW)"; // Allow all access to the process "Owner"
12 | 
13 |     PSECURITY_DESCRIPTOR securityDescriptor = nullptr;
14 | 
15 |     // Convert the SDDL string to a security descriptor
16 |     if (!ConvertStringSecurityDescriptorToSecurityDescriptorW(sddl, SDDL_REVISION_1, &securityDescriptor, nullptr)) {
17 |         // Handle the error
18 |         return;
19 |     }
20 | 
21 |     // Set the security descriptor for the process
22 |     if (!SetKernelObjectSecurity(GetCurrentProcess(), DACL_SECURITY_INFORMATION, securityDescriptor)) {
23 |         // Handle the error
24 |     }
25 | 
26 |     // Free the security descriptor
27 |     LocalFree(securityDescriptor);
28 | }
29 | 
30 | 
31 | int main() {
32 |     printf("[PID] : %d\n", GetCurrentProcessId());
33 |     SetProcessSecurityDescriptor();
34 | 
35 |     getchar();
36 |     return 0;
37 | }
38 | 


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/BlockOpenHandle/BlockOpenHandle.sln:
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 1 | 
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21 | 		{55F0368B-63DA-40E7-A8A5-289F70DF9C7F}.Release|x64.Build.0 = Release|x64
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30 | 	EndGlobalSection
31 | EndGlobal
32 | 


--------------------------------------------------------------------------------
/BlockOpenHandle/BlockOpenHandle.vcxproj:
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/BlockOpenHandle/BlockOpenHandle.vcxproj.user:
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2 | <Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
3 |   <PropertyGroup />
4 | </Project>


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/README.md:
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1 | # BlockOpenHandle
2 | Block any Process to open HANDLE to your process , only SYTEM is allowed to open handle to your process ,with that you can avoid remote memory scanners
3 | 
4 | ## POC
5 | ![Block](https://user-images.githubusercontent.com/123980007/234769688-c72a0496-286e-49a2-8fe4-b55e109aa9ce.png)
6 | 


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