Update README.md

merge-requests/1/merge
xerox 4 years ago
parent 091a4c482d
commit b8e21b248a

@ -20,28 +20,6 @@ and interception can commence.
The payload solution contains a small CPUID interception example. I plan on expanding my examples to include EPT hooking and module injection/module shadowing. I also The payload solution contains a small CPUID interception example. I plan on expanding my examples to include EPT hooking and module injection/module shadowing. I also
need to locate the self referencing pml4e in hyper-v's pml4 :|.... need to locate the self referencing pml4e in hyper-v's pml4 :|....
```cpp
svm::pgs_base_struct vmexit_handler(void* unknown, svm::pguest_context context)
{
const auto vmcb = *reinterpret_cast<svm::pvmcb*>(
*reinterpret_cast<u64*>(
*reinterpret_cast<u64*>(
__readgsqword(0) + offset_vmcb_base)
+ offset_vmcb_link) + offset_vmcb);
if (vmcb->exitcode == VMEXIT_CPUID && context->rcx == VMEXIT_KEY)
{
vmcb->rax = 0xC0FFEE;
vmcb->rip = vmcb->nrip;
return reinterpret_cast<svm::pgs_base_struct>(__readgsqword(0));
}
return reinterpret_cast<svm::vcpu_run_t>(
reinterpret_cast<u64>(&vmexit_handler) -
svm::voyager_context.vcpu_run_rva)(unknown, context);
}
```
<img src="https://imgur.com/xchpi9B.png"/> <img src="https://imgur.com/xchpi9B.png"/>
# Voyager 2 - AMD # Voyager 2 - AMD
@ -50,48 +28,6 @@ Voyager 2 contains all the code associated with the AMD part of this project. Si
the linear virtual address of the VMCB for every version of windows. GS register contains a pointer to a structure defined by MS, this structure contains alot of stuff. the linear virtual address of the VMCB for every version of windows. GS register contains a pointer to a structure defined by MS, this structure contains alot of stuff.
Deep in this structure is a linear virtual address to the current cores VMCB. Deep in this structure is a linear virtual address to the current cores VMCB.
```
#if WINVER == 2004
#define offset_vmcb_base 0x103B0
#define offset_vmcb_link 0x198
#define offset_vmcb 0xE80
#elif WINVER == 1909
#define offset_vmcb_base 0x83B0
#define offset_vmcb_link 0x190
#define offset_vmcb 0xD00
#elif WINVER == 1903
#define offset_vmcb_base 0x83B0
#define offset_vmcb_link 0x190
#define offset_vmcb 0xD00
#elif WINVER == 1809
#define offset_vmcb_base 0x83B0
#define offset_vmcb_link 0x198
#define offset_vmcb 0xD00
#elif WINVER == 1803
#define offset_vmcb_base 0x82F0
#define offset_vmcb_link 0x168
#define offset_vmcb 0xCC0
#elif WINVER == 1709
#define offset_vmcb_base 0x82F0
#define offset_vmcb_link 0x88
#define offset_vmcb 0xC80
#elif WINVER == 1703
#define offset_vmcb_base 0x82F0
#define offset_vmcb_link 0x80
#define offset_vmcb 0xBC0
#elif WINVER == 1607
#define offset_vmcb_base 0x82F0
#define offset_vmcb_link 0x90
#define offset_vmcb 0xBC0
#elif WINVER == 1511
#define offset_vmcb_base 0x82F0
#define offset_vmcb_link 0x90
#define offset_vmcb 0xC40
#endif
```
Ill probably end up sig scanning for these offsets/resolving them at runtime when i condense this project down to a single solution.
# Versions & Support # Versions & Support
:o: -> unknown/not tested. :o: -> unknown/not tested.

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