Lightemerald/windows-user-space-emulator
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Load environment variables from registry

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This commit is contained in:
Igor Pissolati
2025-04-28 12:46:36 -03:00
parent 496fbd3a40
commit 9d5338b168
3 changed files with 27 additions and 6 deletions
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26
src/windows-emulator/process_context.cpp
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@@ -27,9 +27,9 @@ namespace
}
}
void process_context::setup(x86_64_emulator& emu, memory_manager& memory, const application_settings& app_settings,
const mapped_module& executable, const mapped_module& ntdll,
const apiset::container& apiset_container)
void process_context::setup(x86_64_emulator& emu, memory_manager& memory, registry_manager& registry,
const application_settings& app_settings, const mapped_module& executable,
const mapped_module& ntdll, const apiset::container& apiset_container)
{
setup_gdt(emu, memory);
@@ -66,8 +66,28 @@ void process_context::setup(x86_64_emulator& emu, memory_manager& memory, const
proc_params.StandardError = proc_params.StandardOutput;
proc_params.Environment = allocator.copy_string(u"=::=::\\");
const auto env_key =
registry.get_key({R"(\Registry\Machine\System\CurrentControlSet\Control\Session Manager\Environment)"});
if (env_key)
{
size_t i = 0;
while (const auto value = registry.get_value(*env_key, ++i))
{
if ((value->type != REG_SZ && value->type != REG_EXPAND_SZ) || value->data.empty() ||
value->data.size() % 2 != 0)
continue;
std::u16string entry =
u8_to_u16(value->name) + u"=" + reinterpret_cast<const char16_t*>(value->data.data());
allocator.copy_string(entry);
}
}
allocator.copy_string(u"EMULATOR=1");
allocator.copy_string(u"COMPUTERNAME=momo");
allocator.copy_string(u"USERNAME=momo");
allocator.copy_string(u"SystemDrive=C:");
allocator.copy_string(u"SystemRoot=C:\\WINDOWS");
allocator.copy_string(u"");

5
src/windows-emulator/process_context.hpp
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@@ -59,8 +59,9 @@ struct process_context
{
}
void setup(x86_64_emulator& emu, memory_manager& memory, const application_settings& app_settings,
const mapped_module& executable, const mapped_module& ntdll, const apiset::container& apiset_container);
void setup(x86_64_emulator& emu, memory_manager& memory, registry_manager& registry,
const application_settings& app_settings, const mapped_module& executable, const mapped_module& ntdll,
const apiset::container& apiset_container);
handle create_thread(memory_manager& memory, uint64_t start_address, uint64_t argument, uint64_t stack_size,
bool suspended);

2
src/windows-emulator/windows_emulator.cpp
View File

@@ -345,7 +345,7 @@ void windows_emulator::setup_process(const application_settings& app_settings)
const auto apiset_data = apiset::obtain(this->emulation_root);
this->process.setup(this->emu(), this->memory, app_settings, *executable, *ntdll, apiset_data);
this->process.setup(this->emu(), this->memory, this->registry, app_settings, *executable, *ntdll, apiset_data);
const auto ntdll_data = emu.read_memory(ntdll->image_base, static_cast<size_t>(ntdll->size_of_image));
const auto win32u_data = emu.read_memory(win32u->image_base, static_cast<size_t>(win32u->size_of_image));