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Added basic CXX string obfuscation via constexpr.
* obfuscate functions names retrieved via MmGetSystemRoutineAddress * add two new static libs: libcnative (C-only) and libcxxnative (CXX-only) Signed-off-by: Toni Uhlig <[email protected]>
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,163 @@ | ||
| #pragma once | ||
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| /*____________________________________________________________________________________________________________ | ||
| Original Author: skadro | ||
| Github: https://github.com/skadro-official | ||
| License: See end of file | ||
| skCrypter | ||
| Compile-time, Usermode + Kernelmode, safe and lightweight string crypter library for C++11+ | ||
| *Not removing this part is appreciated* | ||
| ____________________________________________________________________________________________________________*/ | ||
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| #ifdef _KERNEL_MODE | ||
| namespace std | ||
| { | ||
| // STRUCT TEMPLATE remove_reference | ||
| template <class _Ty> | ||
| struct remove_reference { | ||
| using type = _Ty; | ||
| }; | ||
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| template <class _Ty> | ||
| struct remove_reference<_Ty&> { | ||
| using type = _Ty; | ||
| }; | ||
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| template <class _Ty> | ||
| struct remove_reference<_Ty&&> { | ||
| using type = _Ty; | ||
| }; | ||
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| template <class _Ty> | ||
| using remove_reference_t = typename remove_reference<_Ty>::type; | ||
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| // STRUCT TEMPLATE remove_const | ||
| template <class _Ty> | ||
| struct remove_const { // remove top-level const qualifier | ||
| using type = _Ty; | ||
| }; | ||
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| template <class _Ty> | ||
| struct remove_const<const _Ty> { | ||
| using type = _Ty; | ||
| }; | ||
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| template <class _Ty> | ||
| using remove_const_t = typename remove_const<_Ty>::type; | ||
| } | ||
| #else | ||
| #include <type_traits> | ||
| #endif | ||
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| namespace skc | ||
| { | ||
| template<class _Ty> | ||
| using clean_type = typename std::remove_const_t<std::remove_reference_t<_Ty>>; | ||
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| template <int _size, char _key1, char _key2, typename T> | ||
| class skCrypter | ||
| { | ||
| public: | ||
| __forceinline constexpr skCrypter(T* data) | ||
| { | ||
| crypt(data); | ||
| } | ||
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| __forceinline T* get() | ||
| { | ||
| return _storage; | ||
| } | ||
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| __forceinline int size() // (w)char count | ||
| { | ||
| return _size; | ||
| } | ||
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| __forceinline char key() | ||
| { | ||
| return _key1; | ||
| } | ||
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| __forceinline T* encrypt() | ||
| { | ||
| if (!isEncrypted()) | ||
| crypt(_storage); | ||
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| return _storage; | ||
| } | ||
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| __forceinline T* decrypt() | ||
| { | ||
| if (isEncrypted()) | ||
| crypt(_storage); | ||
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| return _storage; | ||
| } | ||
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| __forceinline bool isEncrypted() | ||
| { | ||
| return _storage[_size - 1] != 0; | ||
| } | ||
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| __forceinline void clear() // set full storage to 0 | ||
| { | ||
| for (int i = 0; i < _size; i++) | ||
| { | ||
| _storage[i] = 0; | ||
| } | ||
| } | ||
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| __forceinline operator T* () | ||
| { | ||
| decrypt(); | ||
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| return _storage; | ||
| } | ||
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| private: | ||
| __forceinline constexpr void crypt(T* data) | ||
| { | ||
| for (int i = 0; i < _size; i++) | ||
| { | ||
| _storage[i] = data[i] ^ (_key1 + i % (1 + _key2)); | ||
| } | ||
| } | ||
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| T _storage[_size]{}; | ||
| }; | ||
| } | ||
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| #define skCrypt(str) skCrypt_key(str, __TIME__[4], __TIME__[7]) | ||
| #define skCrypt_key(str, key1, key2) []() { \ | ||
| constexpr static auto crypted = skc::skCrypter \ | ||
| <sizeof(str) / sizeof(str[0]), key1, key2, skc::clean_type<decltype(str[0])>>((skc::clean_type<decltype(str[0])>*)str); \ | ||
| return crypted; }() | ||
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| /*________________________________________________________________________________ | ||
| MIT License | ||
| Copyright (c) 2020 skadro | ||
| Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| of this software and associated documentation files (the "Software"), to deal | ||
| in the Software without restriction, including without limitation the rights | ||
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| copies of the Software, and to permit persons to whom the Software is | ||
| furnished to do so, subject to the following conditions: | ||
| The above copyright notice and this permission notice shall be included in all | ||
| copies or substantial portions of the Software. | ||
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| SOFTWARE. | ||
| ________________________________________________________________________________*/ |
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