Function at 0xc77480
Capabilities:
Check os version
Resolve function by parsing pe exports

Disassembly:
push ebp
mov ebp, esp
and esp, 0xffffffc0
push 0xffffffffffffffff
push 0xd4ab50
mov eax, dword fs:[0]
push eax
sub esp, 0xac
mov eax, dword [str._Sk]
xor eax, esp
mov dword [esp + 0x74], eax
push esi
push edi
mov eax, dword [str._Sk]
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 0xc7750d
mov eax, dword [ebx + 0x24]
mov eax, dword [eax + 0x10]
cmp byte [eax + 0x38], 0
je 0xc7750d
mov eax, dword [ebx + 0x18]
cmp dword [eax*4 + 0xd640c8], 0xa
jne 0xc7750d
cmp dword [ebx + 0x1c], 3
je 0xc7750d
push ebx
mov edx, esi
mov ecx, edi
call fcn.00c77d80
add esp, 4
jmp 0xc77d14
mov edx, dword [ecx]
xor esi, esi
cmp dword [ebx + 0x1c], 3
push ebx
mov dword [esp + 0x44], esi
push edi
jne 0xc77526
mov eax, dword [edx + 0x14]
call eax
mov esi, eax
jmp 0xc77534
mov eax, dword [edx + 0x10]
call eax
test al, al
je 0xc77538
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 0xc77576
test esi, esi
jle 0xc77576
mov eax, dword [ebx + 0x14]
lea ecx, [eax*8]
or ecx, 2
push ecx
mov ecx, dword [esp + 0x30]
call fcn.00c7ba00
push edi
mov edi, ebx
call fcn.00c78160
mov ecx, dword [esp + 0x30]
add esp, 4
push eax
call fcn.00c7ba00
mov dword [esp + 0x38], 0
test esi, esi
jle 0xc77d14
mov eax, dword [ebx + 0x18]
dec eax
cmp eax, 0x11
ja case.default.0xc77593
jmp dword [eax*4 + 0xc77d34]
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xc775bb
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 0xc775c8
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 0xc775ef
mov ecx, dword [esp + 0x2c]
test eax, eax
jns 0xc775e4
cdq
push edx
push eax
call fcn.00c7bbf0
jmp case.default.0xc77593
push eax
call fcn.00c7ba00
jmp case.default.0xc77593
mov esi, dword [esp + 0x2c]
mov edi, eax
mov eax, dword [ebx + 0x14]
call fcn.00c6dfb0
jmp case.default.0xc77593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xc77623
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 0xc77630
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 0xc77647
mov ecx, dword [esp + 0x34]
call fcn.00c7bbf0
jmp case.default.0xc77593
mov esi, dword [esp + 0x34]
mov eax, dword [ebx + 0x14]
call fcn.00c6dff0
add esp, 8
jmp case.default.0xc77593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xc7767c
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 0xc77689
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 0xc776a9
mov ecx, eax
sar ecx, 0x1f
lea edx, [eax + eax]
xor ecx, edx
push ecx
mov ecx, dword [esp + 0x30]
call fcn.00c7ba00
jmp case.default.0xc77593
mov esi, dword [esp + 0x2c]
mov edi, eax
mov eax, dword [ebx + 0x14]
call fcn.00c6e040
jmp case.default.0xc77593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xc776dd
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 0xc776ea
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 0xc77705
mov ecx, dword [esp + 0x2c]
push ecx
push edx
push eax
call fcn.00c6dbd0
add esp, 0xc
jmp case.default.0xc77593
mov esi, dword [esp + 0x2c]
push edx
push eax
mov eax, dword [ebx + 0x14]
call fcn.00c6e070
add esp, 8
jmp case.default.0xc77593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xc7773c
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 0xc77749
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 0xc77761
mov ecx, dword [esp + 0x2c]
push esi
call fcn.00c7ba00
jmp case.default.0xc77593
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.00c7ba00
push esi
mov ecx, edi
call fcn.00c7ba00
jmp case.default.0xc77593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xc777a4
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 0xc777b1
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 0xc777c8
mov ecx, dword [esp + 0x34]
call fcn.00c7bbf0
jmp case.default.0xc77593
mov esi, dword [esp + 0x34]
mov eax, dword [ebx + 0x14]
call fcn.00c6dff0
add esp, 8
jmp case.default.0xc77593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xc777fd
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 0xc7780a
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 0xc77823
mov eax, dword [esp + 0x30]
call fcn.00c6dc00
add esp, 4
jmp case.default.0xc77593
mov ecx, dword [esp + 0x30]
mov eax, dword [ebx + 0x14]
call fcn.00c6e140
add esp, 4
jmp case.default.0xc77593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xc77858
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 0xc77865
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 0xc7787f
mov ecx, dword [esp + 0x34]
call fcn.00c6dc40
add esp, 8
jmp case.default.0xc77593
mov ecx, dword [ebx + 0x14]
push ecx
mov ecx, dword [esp + 0x38]
call fcn.00c6e0b0
add esp, 0xc
jmp case.default.0xc77593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xc778b5
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 0xc778c2
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 0xc778db
mov eax, dword [esp + 0x30]
call fcn.00c6dc00
add esp, 4
jmp case.default.0xc77593
mov ecx, dword [esp + 0x30]
mov eax, dword [ebx + 0x14]
call fcn.00c6e140
add esp, 4
jmp case.default.0xc77593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xc77910
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 0xc7791d
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 0xc77937
mov ecx, dword [esp + 0x34]
call fcn.00c6dc40
add esp, 8
jmp case.default.0xc77593
mov ecx, dword [ebx + 0x14]
push ecx
mov ecx, dword [esp + 0x38]
call fcn.00c6e0b0
add esp, 0xc
jmp case.default.0xc77593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xc7796d
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 0xc7797a
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 0xc7799e
mov eax, dword [esp + 0x30]
call fcn.00c6dcb0
add esp, 4
jmp case.default.0xc77593
mov ecx, dword [esp + 0x30]
mov eax, dword [ebx + 0x14]
call fcn.00c6e190
add esp, 4
jmp case.default.0xc77593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xc779d3
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 0xc779e0
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 0xc779fe
mov ecx, dword [esp + 0x34]
call fcn.00c6dd00
add esp, 8
jmp case.default.0xc77593
mov ecx, dword [ebx + 0x14]
push ecx
mov ecx, dword [esp + 0x38]
call fcn.00c6e1f0
add esp, 0xc
jmp case.default.0xc77593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xc77a34
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 0xc77a41
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 0xc77a62
xor ecx, ecx
test al, al
setne cl
push ecx
mov ecx, dword [esp + 0x30]
call fcn.00c7ba00
jmp case.default.0xc77593
mov edx, dword [esp + 0x44]
mov esi, dword [esp + 0x2c]
mov eax, dword [ebx + 0x14]
push edx
call fcn.00c6e280
add esp, 4
jmp case.default.0xc77593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xc77a9c
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 0xc77aab
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.00c7ba00
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.00c7ba00
jmp case.default.0xc77593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xc77b18
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.00c6e320
jmp case.default.0xc77593
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.00c6e320
jmp case.default.0xc77593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0xc77b5b
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 0xc77b68
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 0xc77b77
mov eax, dword [eax + 8]
jmp 0xc775cf
mov edi, dword [eax + 8]
mov esi, dword [esp + 0x2c]
mov eax, dword [ebx + 0x14]
call fcn.00c6dfb0
jmp case.default.0xc77593
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 0xc77bca
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 0xc77bdc
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.00c7ba00
mov eax, dword [esi + 0x10]
push eax
mov ecx, edi
call fcn.00c7ba00
cmp dword [esi + 0x14], 0x10
mov eax, dword [esi + 0x10]
jb 0xc77c0c
mov esi, dword [esi]
push esi
mov esi, edi
call fcn.00c7b880
mov dword [esp + 0xc0], 0xffffffff
cmp dword [esp + 0x78], 0x10
jb case.default.0xc77593
mov ecx, dword [esp + 0x64]
push ecx
call fcn.00cd8a36
add esp, 4
jmp case.default.0xc77593
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 0xc77c82
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 0xc77c94
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.00c7ba00
mov eax, dword [esi + 0x10]
push eax
mov ecx, edi
call fcn.00c7ba00
cmp dword [esi + 0x14], 0x10
mov eax, dword [esi + 0x10]
jb 0xc77cc5
mov esi, dword [esi]
push esi
mov esi, edi
call fcn.00c7b880
mov dword [esp + 0xc0], 0xffffffff
cmp dword [esp + 0x5c], 0x10
jb 0xc77cec
mov edx, dword [esp + 0x48]
push edx
call fcn.00cd8a36
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 0xc77586
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.00cd8a41
mov esp, ebp
pop ebp
ret