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Merge branch 'revert-506db839' into 'master'

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Revert "added working set manager fix"

See merge request _xeroxz/PSKDM!3
master
_xeroxz 4 years ago
parent 070ec5fcc1 6d8da0bd29
commit c9b8d80b22
7 changed files with 2 additions and 156 deletions
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2
PSKDM/PSKDM.vcxproj
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@ -202,7 +202,6 @@
<ClCompile Include="map_driver.cpp" /> <ClCompile Include="map_driver.cpp" />
<ClCompile Include="mem_ctx\mem_ctx.cpp" /> <ClCompile Include="mem_ctx\mem_ctx.cpp" />
<ClCompile Include="pe_image\pe_image.cpp" /> <ClCompile Include="pe_image\pe_image.cpp" />
<ClCompile Include="set_mgr\set_mgr.cpp" />
<ClCompile Include="vdm_ctx\vdm_ctx.cpp" /> <ClCompile Include="vdm_ctx\vdm_ctx.cpp" />
</ItemGroup> </ItemGroup>
<ItemGroup> <ItemGroup>
@ -210,7 +209,6 @@
<ClInclude Include="map_driver.hpp" /> <ClInclude Include="map_driver.hpp" />
<ClInclude Include="mem_ctx\mem_ctx.hpp" /> <ClInclude Include="mem_ctx\mem_ctx.hpp" />
<ClInclude Include="pe_image\pe_image.h" /> <ClInclude Include="pe_image\pe_image.h" />
<ClInclude Include="set_mgr\set_mgr.hpp" />
<ClInclude Include="util\hook.hpp" /> <ClInclude Include="util\hook.hpp" />
<ClInclude Include="util\loadup.hpp" /> <ClInclude Include="util\loadup.hpp" />
<ClInclude Include="util\nt.hpp" /> <ClInclude Include="util\nt.hpp" />

6
PSKDM/PSKDM.vcxproj.filters
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@ -32,9 +32,6 @@
<ClCompile Include="mapper_ctx\mapper_ctx.cpp"> <ClCompile Include="mapper_ctx\mapper_ctx.cpp">
<Filter>Source Files</Filter> <Filter>Source Files</Filter>
</ClCompile> </ClCompile>
<ClCompile Include="set_mgr\set_mgr.cpp">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup> </ItemGroup>
<ItemGroup> <ItemGroup>
<ClInclude Include="util\hook.hpp"> <ClInclude Include="util\hook.hpp">
@ -70,8 +67,5 @@
<ClInclude Include="vdm_ctx\vdm_ctx.h"> <ClInclude Include="vdm_ctx\vdm_ctx.h">
<Filter>Header Files</Filter> <Filter>Header Files</Filter>
</ClInclude> </ClInclude>
<ClInclude Include="set_mgr\set_mgr.hpp">
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup> </ItemGroup>
</Project> </Project>

5
PSKDM/map_driver.cpp
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@ -2,7 +2,6 @@
#include "mapper_ctx/mapper_ctx.hpp" #include "mapper_ctx/mapper_ctx.hpp"
#include "vdm_ctx/vdm_ctx.h" #include "vdm_ctx/vdm_ctx.h"
#include "vdm/vdm.hpp" #include "vdm/vdm.hpp"
#include "set_mgr/set_mgr.hpp"
namespace mapper namespace mapper
{ {
@ -27,13 +26,13 @@ namespace mapper
nasa::mem_ctx runtime_broker(v_ctx, runtime_broker_pid); nasa::mem_ctx runtime_broker(v_ctx, runtime_broker_pid);
nasa::mapper_ctx mapper(my_proc, runtime_broker); nasa::mapper_ctx mapper(my_proc, runtime_broker);
// shoot the tires off the set manager thread.....
set_mgr::stop_setmgr(v_ctx, set_mgr::get_setmgr_pethread(v_ctx));
const auto [drv_base, drv_entry] = mapper.map(drv_buffer); const auto [drv_base, drv_entry] = mapper.map(drv_buffer);
if (!drv_base || !drv_entry) if (!drv_base || !drv_entry)
return { mapper_error::init_failed, nullptr }; return { mapper_error::init_failed, nullptr };
mapper.call_entry(drv_entry, entry_data); mapper.call_entry(drv_entry, entry_data);
if (!vdm::unload_drv(drv_handle, drv_key)) if (!vdm::unload_drv(drv_handle, drv_key))
return { mapper_error::unload_error, nullptr }; return { mapper_error::unload_error, nullptr };

77
PSKDM/set_mgr/set_mgr.cpp
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@ -1,77 +0,0 @@
#include "set_mgr.hpp"
namespace set_mgr
{
auto get_setmgr_pethread(vdm::vdm_ctx& v_ctx)->PETHREAD
{
ULONG return_len = 0u;
std::size_t alloc_size = 0x1000u;
auto process_info = reinterpret_cast<SYSTEM_PROCESS_INFORMATION*>(malloc(alloc_size));
while (NtQuerySystemInformation
(
SystemProcessInformation,
process_info,
alloc_size,
&return_len
) == STATUS_INFO_LENGTH_MISMATCH)
process_info = reinterpret_cast<SYSTEM_PROCESS_INFORMATION*>(
realloc(process_info, alloc_size += 0x1000));
const auto og_ptr = process_info;
while (process_info && process_info->UniqueProcessId != (HANDLE)4)
process_info = reinterpret_cast<SYSTEM_PROCESS_INFORMATION*>(
reinterpret_cast<std::uintptr_t>(process_info) + process_info->NextEntryOffset);
auto thread_info = reinterpret_cast<SYSTEM_THREAD_INFORMATION*>(
reinterpret_cast<std::uintptr_t>(process_info) + sizeof SYSTEM_PROCESS_INFORMATION);
static const auto ntoskrnl_base =
util::get_kmodule_base("ntoskrnl.exe");
const auto [ke_balance_um, ke_balance_rva] =
util::memory::sig_scan(
KE_BALANCE_SIG, KE_BALANCE_MASK);
auto rip_rva = *reinterpret_cast<std::uint32_t*>(ke_balance_um + 19);
const auto ke_balance_set = ntoskrnl_base + ke_balance_rva + 23 + rip_rva;
const auto [suspend_in_um, suspend_rva] =
util::memory::sig_scan(SUSPEND_THREAD_SIG, SUSPEND_THREAD_MASK);
rip_rva = *reinterpret_cast<std::uint32_t*>(suspend_in_um + 1);
const auto ps_suspend_thread = reinterpret_cast<void*>(ntoskrnl_base + rip_rva + 5 + suspend_rva);
static const auto lookup_pethread =
util::get_kmodule_export("ntoskrnl.exe", "PsLookupThreadByThreadId");
for (auto idx = 0u; idx < process_info->NumberOfThreads; ++idx)
{
if (thread_info[idx].StartAddress == reinterpret_cast<void*>(ke_balance_set))
{
PETHREAD pethread;
auto result = v_ctx.syscall<PsLookupThreadByThreadId>(
lookup_pethread, thread_info[idx].ClientId.UniqueThread, &pethread);
free(og_ptr);
return pethread;
}
}
free(og_ptr);
return {};
}
auto stop_setmgr(vdm::vdm_ctx& v_ctx, PETHREAD pethread) -> NTSTATUS
{
static const auto ntoskrnl_base =
util::get_kmodule_base("ntoskrnl.exe");
const auto [suspend_in_um, suspend_rva] =
util::memory::sig_scan(SUSPEND_THREAD_SIG, SUSPEND_THREAD_MASK);
const auto rip_rva = *reinterpret_cast<std::uint32_t*>(suspend_in_um + 1);
const auto ps_suspend_thread = reinterpret_cast<void*>(ntoskrnl_base + rip_rva + 5 + suspend_rva);
return v_ctx.syscall<PsSuspendThread>(ps_suspend_thread, pethread, nullptr);
}
}

18
PSKDM/set_mgr/set_mgr.hpp
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@ -1,18 +0,0 @@
#pragma once
#include "../vdm_ctx/vdm_ctx.h"
using PETHREAD = PVOID;
using PsSuspendThread = NTSTATUS(*)(PETHREAD, PULONG);
using PsLookupThreadByThreadId = NTSTATUS(*)(HANDLE, PETHREAD*);
#define KE_BALANCE_SIG "\x65\x48\x8B\x04\x25\x00\x00\x00\x00\x48\x8B\x88\x00\x00\x00\x00\x48\x8D\x05"
#define KE_BALANCE_MASK "xxxxx????xxx????xxx"
#define SUSPEND_THREAD_SIG "\xE8\x00\x00\x00\x00\x8B\xF8\xBA\x50\x73\x53\x75"
#define SUSPEND_THREAD_MASK "x????xxxxxxx"
namespace set_mgr
{
auto get_setmgr_pethread(vdm::vdm_ctx& v_ctx)->PETHREAD;
auto stop_setmgr(vdm::vdm_ctx& v_ctx, PETHREAD pethread)->NTSTATUS;
}

50
PSKDM/util/util.hpp
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@ -319,54 +319,4 @@ namespace util
} }
return NULL; return NULL;
} }
namespace memory
{
template<std::size_t pattern_length>
__forceinline auto sig_scan(const char(&signature)[pattern_length], const char(&mask)[pattern_length]) -> std::pair<std::uintptr_t, std::uint32_t>
{
static const auto ntoskrnl_module =
LoadLibraryEx(
"ntoskrnl.exe",
NULL,
DONT_RESOLVE_DLL_REFERENCES
);
static const auto p_idh = reinterpret_cast<PIMAGE_DOS_HEADER>(ntoskrnl_module);
if (p_idh->e_magic != IMAGE_DOS_SIGNATURE)
return { {}, {} };
static const auto p_inh = reinterpret_cast<PIMAGE_NT_HEADERS>((LPBYTE)ntoskrnl_module + p_idh->e_lfanew);
if (p_inh->Signature != IMAGE_NT_SIGNATURE)
return { {}, {} };
const auto pattern_view =
std::string_view
{
reinterpret_cast<char*>(ntoskrnl_module),
p_inh->OptionalHeader.SizeOfImage
};
std::array<std::pair<char, char>, pattern_length - 1> pattern{};
for (std::size_t index = 0; index < pattern_length - 1; index++)
pattern[index] = { signature[index], mask[index] };
auto resultant_address = std::search
(
pattern_view.cbegin(),
pattern_view.cend(),
pattern.cbegin(),
pattern.cend(),
[](char left, std::pair<char, char> right) -> bool {
return (right.second == '?' || left == right.first);
});
const auto found_address =
resultant_address == pattern_view.cend() ? 0 :
reinterpret_cast<std::uintptr_t>(resultant_address.operator->());
const auto rva = found_address - reinterpret_cast<std::uintptr_t>(ntoskrnl_module);
return { found_address, rva };
}
}
} }

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