ExecutePe no return output.

[piolug93]

When i run task with command ExecutePE result is only:

When program console is:

TestExec.exe code is simple:

#include <stdio.h>
#include <stdint.h>


int main() {
    printf("Before modification:\n");
    return 0;
}

[its-a-feature]

How are you compiling that code? Apollo's execute_pe documentation says:

Execute a statically compiled PE file (e.g., compiled with /MT) with the specified arguments.

[piolug93]

Thx, for that tip. My error i doesn't checked documentation of that command.

[piolug93]

Run exe from that code with the same compile parameters doesn't give output result.
My compile params:
/permissive- /ifcOutput "x64\Release\" /GS /GL /W3 /Gy /Zc:wchar_t /Zi /Gm- /O2 /sdl /Fd"x64\Release\vc143.pdb" /Zc:inline /fp:precise /D "NDEBUG" /D "_CONSOLE" /D "_UNICODE" /D "UNICODE" /errorReport:prompt /WX- /Zc:forScope /Gd /Oi /MT /FC /Fa"x64\Release\" /EHsc /nologo /Fo"x64\Release\" /Fp"x64\Release\TestExec.pch" /diagnostics:column

#include <windows.h>
#include <stdio.h>
#include <stdint.h>
#include <iostream>


int main() {
    std::cout << "Not valid mode" << std::endl;
    return 0;
}

But for that code all is OK.

#include <windows.h>
#include <stdio.h>
#include <stdint.h>


int main() {
    printf("Before modification:\n");
    fprintf(stderr, "Stderr message");
    return 0;
}

[its-a-feature]

Hmm I'll have to look into what's going on more, but I can at least confirm what you're seeing. The first code block does not return output to Mythic; however, the second code block does return output.

[its-a-feature]

Ok, I got it to work. I think the issue is that using some of those other libraries in the top C++ code (like the std::cout) are handled a little differently when it comes to compilation. In addition to needing that /MT flag, I had to do a few things:

1. Under Configuration Properties --> General, change the "Use of MFC" field to "Use MFC in a Static Library".
2. Install the MFC components (https://learn.microsoft.com/en-us/visualstudio/msbuild/errors/msb8041?view=vs-2022)
3. Rebuild

Also, make sure you're using the latest Apollo code for the agent and the server.

A fully featured .NET 4.0 compatible training agent. Version: 2.2.24

[piolug93]

In Visual Studio 2022 i don't have Configuration Properties --> General, change the "Use of MFC" field to "Use MFC in a Static Library". I tried change vcxproj file and add UseOfMFC.

  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
    <ConfigurationType>Application</ConfigurationType>
    <UseDebugLibraries>false</UseDebugLibraries>
    <PlatformToolset>v143</PlatformToolset>
    <WholeProgramOptimization>true</WholeProgramOptimization>
    <CharacterSet>Unicode</CharacterSet>
    <UseOfMfc>Static</UseOfMfc>
  </PropertyGroup>

That not give positive result.