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Small cleanup

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This commit is contained in:
Maurice Heumann 2022-12-03 19:47:58 +01:00
parent fc65e498bb
commit 53891376af
1 changed files with 5 additions and 6 deletions
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11
src/client/loader/loader.cpp
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@ -144,8 +144,10 @@ namespace loader
get_optional_header()
->DataDirectory[IMAGE_DIRECTORY_ENTRY_TLS].VirtualAddress);
auto* tls_start = PVOID(source_tls->StartAddressOfRawData);
const auto tls_size = source_tls->EndAddressOfRawData - source_tls->StartAddressOfRawData;
const auto tls_index = *reinterpret_cast<DWORD*>(target_tls->AddressOfIndex);
utils::hook::set<DWORD>(source_tls->AddressOfIndex, tls_index);
if (target_tls->AddressOfCallBacks)
@ -154,14 +156,11 @@ namespace loader
}
DWORD old_protect;
VirtualProtect(PVOID(target_tls->StartAddressOfRawData),
source_tls->EndAddressOfRawData - source_tls->StartAddressOfRawData, PAGE_READWRITE,
&old_protect);
VirtualProtect(tls_start, tls_size, PAGE_READWRITE, &old_protect);
auto* const tls_base = *reinterpret_cast<LPVOID*>(__readgsqword(0x58) + 8ull * tls_index);
std::memmove(tls_base, PVOID(source_tls->StartAddressOfRawData), tls_size);
std::memmove(PVOID(target_tls->StartAddressOfRawData), PVOID(source_tls->StartAddressOfRawData),
tls_size);
std::memmove(tls_base, tls_start, tls_size);
std::memmove(PVOID(target_tls->StartAddressOfRawData), tls_start, tls_size);
VirtualProtect(target_tls, sizeof(*target_tls), PAGE_READWRITE, &old_protect);
*target_tls = *source_tls;