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Get Hypervisor Type (assumes you are running IN a vm) - does not check if it is running on bare metal..
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| from __future__ import print_function | |
| import socket | |
| import ctypes | |
| from ctypes import c_uint32, c_int, c_long, c_ulong, c_size_t, c_void_p, POINTER, CFUNCTYPE | |
| class CPUID_struct(ctypes.Structure): | |
| _fields_ = [(r, c_uint32) for r in ("eax", "ebx", "ecx", "edx")] | |
| def getHypervisorType(): | |
| opc = [ | |
| 0x53, # push %rbx | |
| 0x89, 0xf0, # mov %esi,%eax | |
| 0x89, 0xd1, # mov %edx,%ecx | |
| 0x0f, 0xa2, # cpuid | |
| 0x89, 0x07, # mov %eax,(%rdi) | |
| 0x89, 0x5f, 0x04, # mov %ebx,0x4(%rdi) | |
| 0x89, 0x4f, 0x08, # mov %ecx,0x8(%rdi) | |
| 0x89, 0x57, 0x0c, # mov %edx,0xc(%rdi) | |
| 0x5b, # pop %rbx | |
| 0xc3 # retq | |
| ] | |
| size = len(opc) | |
| code = (ctypes.c_ubyte * size)(*opc) | |
| libc = ctypes.cdll.LoadLibrary(None) | |
| libc.valloc.restype = ctypes.c_void_p | |
| libc.valloc.argtypes = [ctypes.c_size_t] | |
| addr = libc.valloc(size) | |
| if not addr: | |
| raise MemoryError("Could not allocate memory") | |
| libc.mprotect.restype = c_int | |
| libc.mprotect.argtypes = [c_void_p, c_size_t, c_int] | |
| ret = libc.mprotect(addr, size, 1 | 2 | 4) | |
| if ret != 0: | |
| raise OSError("Failed to set RWX") | |
| ctypes.memmove(addr, code, size) | |
| func_type = CFUNCTYPE(None, POINTER(CPUID_struct), c_uint32, c_uint32) | |
| func_ptr = func_type(addr) | |
| struct = CPUID_struct() | |
| func_ptr(struct, 0x40000000, 0x0) | |
| libc.free.restype = None | |
| libc.free.argtypes = [c_void_p] | |
| libc.free(addr) | |
| oc1 = "%x" % socket.htonl(struct.ebx) | |
| oc2 = "%x" % socket.htonl(struct.ecx) | |
| oc3 = "%x" % socket.htonl(struct.edx) | |
| hvSig = oc1.decode("hex")+oc2.decode("hex")+oc3.decode("hex") | |
| if (hvSig == "VMWareVMWare") : | |
| return "VMWare" | |
| elif (hvSig == "KVMKVMKVM\x00\x00\x00"): | |
| return "KVM" | |
| elif (hvSig == "Microsoft Hv"): | |
| return "HyperV" | |
| elif (hvSig == "XenVMMXenVMM"): | |
| return "Xen" | |
| return hvSig | |
| if __name__ == "__main__": | |
| print(getHypervisorType()) |
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