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67 lines
1.6 KiB
67 lines
1.6 KiB
4 years ago
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# Adding VMProtect 2 IL to VTIL Lifters
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4 years ago
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This will disclose how to create a VTIL lifter for VMProfiler v1.8. The instructions may change in later versions of VMProfiler.
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# Example - Existing VTIL Lifter For LCONSTQ
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Understand that LCONSTQ loads an eight byte value onto the stack. Thus the usage of `vtil::operand` to create a 64 bit value.
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#### Step 1, Declare Lifter
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```
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vm::lifters::lifter_t lconstq = {
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// push imm<N>
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vm::handler::LCONSTQ,
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[]( vtil::basic_block *blk, vm::instrs::virt_instr_t *vinstr, vmp2::v3::code_block_t *code_blk ) {
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blk->push( vtil::operand( vinstr->operand.imm.u, 64 ) );
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} };
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```
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4 years ago
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#### Step 2, Declare Extern In vmlifters.hpp
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4 years ago
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You can see this exact line of code [here](https://githacks.org/vmp2/vmprofiler/-/blob/8baefa1e2148111712d640ee9cb7c0b7ac329521/include/vmlifters.hpp#L22).
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```cpp
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extern vm::lifters::lifter_t lconstq;
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```
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4 years ago
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#### Step 3, Add Lifter To vm::lifters::all
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4 years ago
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```cpp
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inline std::vector< vm::lifters::lifter_t * > all = {
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// lreg lifters...
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&lregq, &lregdw,
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// add lifters...
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&addq, &adddw, &addw,
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// sreg lifters...
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&sregq, &sregdw, &sregw,
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// lconst lifters...
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&lconstq, &lconstdw, &lconstw, &lconstbzxw, &lconstbsxdw, &lconstbsxq, &lconstdwsxq, &lconstwsxq, &lconstwsxdw,
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// nand lifters...
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&nandq, &nanddw, &nandw,
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// read lifters....
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&readq, &readdw, &readw,
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// shr lifters...
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&shrq, &shrw,
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// pushvsp lifter...
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&pushvsp,
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// jmp lifter...
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&jmp,
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// lflags lifter...
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&lrflags,
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// lvsp lifter...
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&lvsp,
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// vmexit lifter...
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&vmexit };
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```
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