Function at 0xef7480
Capabilities:
Check os version
Resolve function by parsing pe exports

Disassembly:
push ebp
mov ebp, esp
and esp, 0xffffffc0
push 0xffffffffffffffff
push 0xfcab50
mov eax, dword fs:[0]
push eax
sub esp, 0xac
mov eax, dword [0x10316ec]
xor eax, esp
mov dword [esp + 0x74], eax
push esi
push edi
mov eax, dword [0x10316ec]
xor eax, esp
push eax
lea eax, [esp + 0xb8]
mov dword fs:[0], eax
mov edi, ecx
mov eax, dword [edi]
mov esi, edx
mov edx, dword [eax + 0x44]
mov dword [esp + 0x34], edi
mov dword [esp + 0x2c], esi
call edx
mov dl, byte [ebx + 0x20]
mov ecx, eax
mov dword [esp + 0x30], ecx
test dl, dl
je 0xef750d
mov eax, dword [ebx + 0x24]
mov eax, dword [eax + 0x10]
cmp byte [eax + 0x38], 0
je 0xef750d
mov eax, dword [ebx + 0x18]
cmp dword [eax*4 + 0xfe40c8], 0xa
jne 0xef750d
cmp dword [ebx + 0x1c], 3
je 0xef750d
push ebx
mov edx, esi
mov ecx, edi
call fcn.00ef7d80
add esp, 4
jmp 0xef7d14
mov edx, dword [ecx]
xor esi, esi
cmp dword [ebx + 0x1c], 3
push ebx
mov dword [esp + 0x44], esi
push edi
jne 0xef7526
mov eax, dword [edx + 0x14]
call eax
mov esi, eax
jmp 0xef7534
mov eax, dword [edx + 0x10]
call eax
test al, al
je 0xef7538
mov esi, 1
mov dword [esp + 0x40], esi
mov eax, dword [ebx + 0x38]
mov al, byte [eax + 0x1c]
mov byte [esp + 0x2b], al
test al, al
je 0xef7576
test esi, esi
jle 0xef7576
mov eax, dword [ebx + 0x14]
lea ecx, [eax*8]
or ecx, 2
push ecx
mov ecx, dword [esp + 0x30]
call fcn.00efba00
push edi
mov edi, ebx
call fcn.00ef8160
mov ecx, dword [esp + 0x30]
add esp, 4
push eax
call fcn.00efba00
mov dword [esp + 0x38], 0
test esi, esi
jle 0xef7d14
mov eax, dword [ebx + 0x18]
dec eax
cmp eax, 0x11
ja case.default.0xef7593
jmp dword [eax*4 + 0xef7d34]
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xef75bb
mov eax, dword [esp + 0x38]
mov edx, dword [ecx]
mov edx, dword [edx + 0x80]
push eax
mov eax, dword [esp + 0x38]
push ebx
push eax
call edx
jmp 0xef75c8
mov eax, dword [ecx]
mov edx, dword [esp + 0x34]
mov eax, dword [eax + 0x2c]
push ebx
push edx
call eax
cmp byte [esp + 0x2b], 0
je 0xef75ef
mov ecx, dword [esp + 0x2c]
test eax, eax
jns 0xef75e4
cdq
push edx
push eax
call fcn.00efbbf0
jmp case.default.0xef7593
push eax
call fcn.00efba00
jmp case.default.0xef7593
mov esi, dword [esp + 0x2c]
mov edi, eax
mov eax, dword [ebx + 0x14]
call fcn.00eedfb0
jmp case.default.0xef7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xef7623
mov eax, dword [esp + 0x38]
mov edx, dword [ecx]
mov edx, dword [edx + 0x84]
push eax
mov eax, dword [esp + 0x38]
push ebx
push eax
call edx
jmp 0xef7630
mov eax, dword [ecx]
mov edx, dword [esp + 0x34]
mov eax, dword [eax + 0x30]
push ebx
push edx
call eax
cmp byte [esp + 0x2b], 0
push edx
push eax
je 0xef7647
mov ecx, dword [esp + 0x34]
call fcn.00efbbf0
jmp case.default.0xef7593
mov esi, dword [esp + 0x34]
mov eax, dword [ebx + 0x14]
call fcn.00eedff0
add esp, 8
jmp case.default.0xef7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xef767c
mov eax, dword [esp + 0x38]
mov edx, dword [ecx]
mov edx, dword [edx + 0x80]
push eax
mov eax, dword [esp + 0x38]
push ebx
push eax
call edx
jmp 0xef7689
mov eax, dword [ecx]
mov edx, dword [esp + 0x34]
mov eax, dword [eax + 0x2c]
push ebx
push edx
call eax
cmp byte [esp + 0x2b], 0
je 0xef76a9
mov ecx, eax
sar ecx, 0x1f
lea edx, [eax + eax]
xor ecx, edx
push ecx
mov ecx, dword [esp + 0x30]
call fcn.00efba00
jmp case.default.0xef7593
mov esi, dword [esp + 0x2c]
mov edi, eax
mov eax, dword [ebx + 0x14]
call fcn.00eee040
jmp case.default.0xef7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xef76dd
mov edx, dword [esp + 0x38]
mov eax, dword [ecx]
mov eax, dword [eax + 0x84]
push edx
mov edx, dword [esp + 0x38]
push ebx
push edx
call eax
jmp 0xef76ea
mov edx, dword [ecx]
mov eax, dword [esp + 0x34]
mov edx, dword [edx + 0x30]
push ebx
push eax
call edx
cmp byte [esp + 0x2b], 0
je 0xef7705
mov ecx, dword [esp + 0x2c]
push ecx
push edx
push eax
call fcn.00eedbd0
add esp, 0xc
jmp case.default.0xef7593
mov esi, dword [esp + 0x2c]
push edx
push eax
mov eax, dword [ebx + 0x14]
call fcn.00eee070
add esp, 8
jmp case.default.0xef7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xef773c
mov eax, dword [esp + 0x38]
mov edx, dword [ecx]
mov edx, dword [edx + 0x88]
push eax
mov eax, dword [esp + 0x38]
push ebx
push eax
call edx
jmp 0xef7749
mov eax, dword [ecx]
mov edx, dword [esp + 0x34]
mov eax, dword [eax + 0x34]
push ebx
push edx
call eax
cmp byte [esp + 0x2b], 0
mov esi, eax
je 0xef7761
mov ecx, dword [esp + 0x2c]
push esi
call fcn.00efba00
jmp case.default.0xef7593
mov ecx, dword [ebx + 0x14]
mov edi, dword [esp + 0x2c]
add ecx, ecx
add ecx, ecx
add ecx, ecx
push ecx
mov ecx, edi
call fcn.00efba00
push esi
mov ecx, edi
call fcn.00efba00
jmp case.default.0xef7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xef77a4
mov eax, dword [esp + 0x38]
mov edx, dword [ecx]
mov edx, dword [edx + 0x8c]
push eax
mov eax, dword [esp + 0x38]
push ebx
push eax
call edx
jmp 0xef77b1
mov eax, dword [ecx]
mov edx, dword [esp + 0x34]
mov eax, dword [eax + 0x38]
push ebx
push edx
call eax
cmp byte [esp + 0x2b], 0
push edx
push eax
je 0xef77c8
mov ecx, dword [esp + 0x34]
call fcn.00efbbf0
jmp case.default.0xef7593
mov esi, dword [esp + 0x34]
mov eax, dword [ebx + 0x14]
call fcn.00eedff0
add esp, 8
jmp case.default.0xef7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xef77fd
mov eax, dword [esp + 0x38]
mov edx, dword [ecx]
mov edx, dword [edx + 0x88]
push eax
mov eax, dword [esp + 0x38]
push ebx
push eax
call edx
jmp 0xef780a
mov eax, dword [ecx]
mov edx, dword [esp + 0x34]
mov eax, dword [eax + 0x34]
push ebx
push edx
call eax
cmp byte [esp + 0x2b], 0
push eax
je 0xef7823
mov eax, dword [esp + 0x30]
call fcn.00eedc00
add esp, 4
jmp case.default.0xef7593
mov ecx, dword [esp + 0x30]
mov eax, dword [ebx + 0x14]
call fcn.00eee140
add esp, 4
jmp case.default.0xef7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xef7858
mov eax, dword [esp + 0x38]
mov edx, dword [ecx]
mov edx, dword [edx + 0x8c]
push eax
mov eax, dword [esp + 0x38]
push ebx
push eax
call edx
jmp 0xef7865
mov eax, dword [ecx]
mov edx, dword [esp + 0x34]
mov eax, dword [eax + 0x38]
push ebx
push edx
call eax
cmp byte [esp + 0x2b], 0
push edx
push eax
je 0xef787f
mov ecx, dword [esp + 0x34]
call fcn.00eedc40
add esp, 8
jmp case.default.0xef7593
mov ecx, dword [ebx + 0x14]
push ecx
mov ecx, dword [esp + 0x38]
call fcn.00eee0b0
add esp, 0xc
jmp case.default.0xef7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xef78b5
mov eax, dword [esp + 0x38]
mov edx, dword [ecx]
mov edx, dword [edx + 0x80]
push eax
mov eax, dword [esp + 0x38]
push ebx
push eax
call edx
jmp 0xef78c2
mov eax, dword [ecx]
mov edx, dword [esp + 0x34]
mov eax, dword [eax + 0x2c]
push ebx
push edx
call eax
cmp byte [esp + 0x2b], 0
push eax
je 0xef78db
mov eax, dword [esp + 0x30]
call fcn.00eedc00
add esp, 4
jmp case.default.0xef7593
mov ecx, dword [esp + 0x30]
mov eax, dword [ebx + 0x14]
call fcn.00eee140
add esp, 4
jmp case.default.0xef7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xef7910
mov eax, dword [esp + 0x38]
mov edx, dword [ecx]
mov edx, dword [edx + 0x84]
push eax
mov eax, dword [esp + 0x38]
push ebx
push eax
call edx
jmp 0xef791d
mov eax, dword [ecx]
mov edx, dword [esp + 0x34]
mov eax, dword [eax + 0x30]
push ebx
push edx
call eax
cmp byte [esp + 0x2b], 0
push edx
push eax
je 0xef7937
mov ecx, dword [esp + 0x34]
call fcn.00eedc40
add esp, 8
jmp case.default.0xef7593
mov ecx, dword [ebx + 0x14]
push ecx
mov ecx, dword [esp + 0x38]
call fcn.00eee0b0
add esp, 0xc
jmp case.default.0xef7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xef796d
mov eax, dword [esp + 0x38]
mov edx, dword [ecx]
mov edx, dword [edx + 0x90]
push eax
mov eax, dword [esp + 0x38]
push ebx
push eax
call edx
jmp 0xef797a
mov eax, dword [ecx]
mov edx, dword [esp + 0x34]
mov eax, dword [eax + 0x3c]
push ebx
push edx
call eax
cmp byte [esp + 0x2b], 0
fstp dword [esp + 0x3c]
fld dword [esp + 0x3c]
push ecx
fstp dword [esp]
je 0xef799e
mov eax, dword [esp + 0x30]
call fcn.00eedcb0
add esp, 4
jmp case.default.0xef7593
mov ecx, dword [esp + 0x30]
mov eax, dword [ebx + 0x14]
call fcn.00eee190
add esp, 4
jmp case.default.0xef7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xef79d3
mov eax, dword [esp + 0x38]
mov edx, dword [ecx]
mov edx, dword [edx + 0x94]
push eax
mov eax, dword [esp + 0x38]
push ebx
push eax
call edx
jmp 0xef79e0
mov eax, dword [ecx]
mov edx, dword [esp + 0x34]
mov eax, dword [eax + 0x40]
push ebx
push edx
call eax
sub esp, 8
cmp byte [esp + 0x33], 0
fstp qword [esp]
je 0xef79fe
mov ecx, dword [esp + 0x34]
call fcn.00eedd00
add esp, 8
jmp case.default.0xef7593
mov ecx, dword [ebx + 0x14]
push ecx
mov ecx, dword [esp + 0x38]
call fcn.00eee1f0
add esp, 0xc
jmp case.default.0xef7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xef7a34
mov eax, dword [esp + 0x38]
mov edx, dword [ecx]
mov edx, dword [edx + 0x98]
push eax
mov eax, dword [esp + 0x38]
push ebx
push eax
call edx
jmp 0xef7a41
mov eax, dword [ecx]
mov edx, dword [esp + 0x34]
mov eax, dword [eax + 0x44]
push ebx
push edx
call eax
cmp byte [esp + 0x2b], 0
mov byte [esp + 0x44], al
je 0xef7a62
xor ecx, ecx
test al, al
setne cl
push ecx
mov ecx, dword [esp + 0x30]
call fcn.00efba00
jmp case.default.0xef7593
mov edx, dword [esp + 0x44]
mov esi, dword [esp + 0x2c]
mov eax, dword [ebx + 0x14]
push edx
call fcn.00eee280
add esp, 4
jmp case.default.0xef7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xef7a9c
mov edx, dword [esp + 0x38]
mov eax, dword [ecx]
mov eax, dword [eax + 0xa4]
push edx
mov edx, dword [esp + 0x38]
push ebx
push edx
call eax
jmp 0xef7aab
mov edx, dword [ecx]
mov eax, dword [esp + 0x34]
mov edx, dword [edx + 0x50]
push 0
push ebx
push eax
call edx
mov ecx, dword [esp + 0x2c]
mov edi, eax
mov eax, dword [ebx + 0x14]
lea esi, [eax*8]
mov eax, esi
or eax, 3
push eax
call fcn.00efba00
mov edx, dword [edi]
mov eax, dword [esp + 0x2c]
mov edx, dword [edx + 0x24]
push eax
mov ecx, edi
call edx
mov ecx, dword [esp + 0x2c]
or esi, 4
push esi
call fcn.00efba00
jmp case.default.0xef7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xef7b18
mov edx, dword [esp + 0x38]
mov eax, dword [ecx]
mov eax, dword [eax + 0xa4]
push edx
mov edx, dword [esp + 0x38]
push ebx
push edx
call eax
mov edi, dword [esp + 0x2c]
mov esi, eax
mov eax, dword [ebx + 0x14]
call fcn.00eee320
jmp case.default.0xef7593
mov edx, dword [ecx]
mov eax, dword [esp + 0x34]
mov edx, dword [edx + 0x50]
push 0
push ebx
push eax
call edx
mov edi, dword [esp + 0x2c]
mov esi, eax
mov eax, dword [ebx + 0x14]
call fcn.00eee320
jmp case.default.0xef7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xef7b5b
mov edx, dword [esp + 0x38]
mov eax, dword [ecx]
mov eax, dword [eax + 0xa0]
push edx
mov edx, dword [esp + 0x38]
push ebx
push edx
call eax
jmp 0xef7b68
mov edx, dword [ecx]
mov eax, dword [esp + 0x34]
mov edx, dword [edx + 0x4c]
push ebx
push eax
call edx
cmp byte [esp + 0x2b], 0
je 0xef7b77
mov eax, dword [eax + 8]
jmp 0xef75cf
mov edi, dword [eax + 8]
mov esi, dword [esp + 0x2c]
mov eax, dword [ebx + 0x14]
call fcn.00eedfb0
jmp case.default.0xef7593
xor eax, eax
mov dword [esp + 0x78], 0xf
mov dword [esp + 0x74], eax
mov byte [esp + 0x64], al
mov ecx, dword [esp + 0x30]
mov dword [esp + 0xc0], eax
cmp dword [ebx + 0x1c], 3
jne 0xef7bca
mov eax, dword [ecx]
mov eax, dword [eax + 0xa8]
lea edx, [esp + 0x64]
push edx
mov edx, dword [esp + 0x3c]
push edx
mov edx, dword [esp + 0x3c]
push ebx
push edx
call eax
jmp 0xef7bdc
mov edx, dword [ecx]
mov edx, dword [edx + 0x54]
lea eax, [esp + 0x64]
push eax
mov eax, dword [esp + 0x38]
push ebx
push eax
call edx
mov edi, dword [esp + 0x2c]
mov esi, eax
mov eax, dword [ebx + 0x14]
add eax, eax
add eax, eax
add eax, eax
or eax, 2
push eax
mov ecx, edi
call fcn.00efba00
mov eax, dword [esi + 0x10]
push eax
mov ecx, edi
call fcn.00efba00
cmp dword [esi + 0x14], 0x10
mov eax, dword [esi + 0x10]
jb 0xef7c0c
mov esi, dword [esi]
push esi
mov esi, edi
call fcn.00efb880
mov dword [esp + 0xc0], 0xffffffff
cmp dword [esp + 0x78], 0x10
jb case.default.0xef7593
mov ecx, dword [esp + 0x64]
push ecx
call fcn.00f58a36
add esp, 4
jmp case.default.0xef7593
mov dword [esp + 0x5c], 0xf
mov dword [esp + 0x58], 0
mov byte [esp + 0x48], 0
mov ecx, dword [esp + 0x30]
mov dword [esp + 0xc0], 1
cmp dword [ebx + 0x1c], 3
jne 0xef7c82
mov edx, dword [ecx]
mov edx, dword [edx + 0xa8]
lea eax, [esp + 0x48]
push eax
mov eax, dword [esp + 0x3c]
push eax
mov eax, dword [esp + 0x3c]
push ebx
push eax
call edx
jmp 0xef7c94
mov eax, dword [ecx]
mov eax, dword [eax + 0x54]
lea edx, [esp + 0x48]
push edx
mov edx, dword [esp + 0x38]
push ebx
push edx
call eax
mov edi, dword [esp + 0x2c]
mov esi, eax
mov eax, dword [ebx + 0x14]
lea ecx, [eax*8]
or ecx, 2
push ecx
mov ecx, edi
call fcn.00efba00
mov eax, dword [esi + 0x10]
push eax
mov ecx, edi
call fcn.00efba00
cmp dword [esi + 0x14], 0x10
mov eax, dword [esi + 0x10]
jb 0xef7cc5
mov esi, dword [esi]
push esi
mov esi, edi
call fcn.00efb880
mov dword [esp + 0xc0], 0xffffffff
cmp dword [esp + 0x5c], 0x10
jb 0xef7cec
mov edx, dword [esp + 0x48]
push edx
call fcn.00f58a36
add esp, 4
mov dword [esp + 0x5c], 0xf
mov dword [esp + 0x58], 0
mov byte [esp + 0x48], 0
mov eax, dword [esp + 0x38]
inc eax
mov dword [esp + 0x38], eax
cmp eax, dword [esp + 0x40]
jl 0xef7586
mov ecx, dword [esp + 0xb8]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
mov ecx, dword [esp + 0x74]
xor ecx, esp
call fcn.00f58a41
mov esp, ebp
pop ebp
ret