Function at 0x3d7480
Capabilities:
Check os version
Resolve function by parsing pe exports

Disassembly:
push ebp
mov ebp, esp
and esp, 0xffffffc0
push 0xffffffffffffffff
push 0x4aab50
mov eax, dword fs:[0]
push eax
sub esp, 0xac
mov eax, dword [0x5116ec]
xor eax, esp
mov dword [esp + 0x74], eax
push esi
push edi
mov eax, dword [0x5116ec]
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 0x3d750d
mov eax, dword [ebx + 0x24]
mov eax, dword [eax + 0x10]
cmp byte [eax + 0x38], 0
je 0x3d750d
mov eax, dword [ebx + 0x18]
cmp dword [eax*4 + 0x4c40c8], 0xa
jne 0x3d750d
cmp dword [ebx + 0x1c], 3
je 0x3d750d
push ebx
mov edx, esi
mov ecx, edi
call fcn.003d7d80
add esp, 4
jmp 0x3d7d14
mov edx, dword [ecx]
xor esi, esi
cmp dword [ebx + 0x1c], 3
push ebx
mov dword [esp + 0x44], esi
push edi
jne 0x3d7526
mov eax, dword [edx + 0x14]
call eax
mov esi, eax
jmp 0x3d7534
mov eax, dword [edx + 0x10]
call eax
test al, al
je 0x3d7538
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 0x3d7576
test esi, esi
jle 0x3d7576
mov eax, dword [ebx + 0x14]
lea ecx, [eax*8]
or ecx, 2
push ecx
mov ecx, dword [esp + 0x30]
call fcn.003dba00
push edi
mov edi, ebx
call fcn.003d8160
mov ecx, dword [esp + 0x30]
add esp, 4
push eax
call fcn.003dba00
mov dword [esp + 0x38], 0
test esi, esi
jle 0x3d7d14
mov eax, dword [ebx + 0x18]
dec eax
cmp eax, 0x11
ja case.default.0x3d7593
jmp dword [eax*4 + 0x3d7d34]
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0x3d75bb
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 0x3d75c8
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 0x3d75ef
mov ecx, dword [esp + 0x2c]
test eax, eax
jns 0x3d75e4
cdq
push edx
push eax
call fcn.003dbbf0
jmp case.default.0x3d7593
push eax
call fcn.003dba00
jmp case.default.0x3d7593
mov esi, dword [esp + 0x2c]
mov edi, eax
mov eax, dword [ebx + 0x14]
call fcn.003cdfb0
jmp case.default.0x3d7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0x3d7623
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 0x3d7630
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 0x3d7647
mov ecx, dword [esp + 0x34]
call fcn.003dbbf0
jmp case.default.0x3d7593
mov esi, dword [esp + 0x34]
mov eax, dword [ebx + 0x14]
call fcn.003cdff0
add esp, 8
jmp case.default.0x3d7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0x3d767c
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 0x3d7689
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 0x3d76a9
mov ecx, eax
sar ecx, 0x1f
lea edx, [eax + eax]
xor ecx, edx
push ecx
mov ecx, dword [esp + 0x30]
call fcn.003dba00
jmp case.default.0x3d7593
mov esi, dword [esp + 0x2c]
mov edi, eax
mov eax, dword [ebx + 0x14]
call fcn.003ce040
jmp case.default.0x3d7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0x3d76dd
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 0x3d76ea
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 0x3d7705
mov ecx, dword [esp + 0x2c]
push ecx
push edx
push eax
call fcn.003cdbd0
add esp, 0xc
jmp case.default.0x3d7593
mov esi, dword [esp + 0x2c]
push edx
push eax
mov eax, dword [ebx + 0x14]
call fcn.003ce070
add esp, 8
jmp case.default.0x3d7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0x3d773c
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 0x3d7749
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 0x3d7761
mov ecx, dword [esp + 0x2c]
push esi
call fcn.003dba00
jmp case.default.0x3d7593
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.003dba00
push esi
mov ecx, edi
call fcn.003dba00
jmp case.default.0x3d7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0x3d77a4
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 0x3d77b1
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 0x3d77c8
mov ecx, dword [esp + 0x34]
call fcn.003dbbf0
jmp case.default.0x3d7593
mov esi, dword [esp + 0x34]
mov eax, dword [ebx + 0x14]
call fcn.003cdff0
add esp, 8
jmp case.default.0x3d7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0x3d77fd
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 0x3d780a
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 0x3d7823
mov eax, dword [esp + 0x30]
call fcn.003cdc00
add esp, 4
jmp case.default.0x3d7593
mov ecx, dword [esp + 0x30]
mov eax, dword [ebx + 0x14]
call fcn.003ce140
add esp, 4
jmp case.default.0x3d7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0x3d7858
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 0x3d7865
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 0x3d787f
mov ecx, dword [esp + 0x34]
call fcn.003cdc40
add esp, 8
jmp case.default.0x3d7593
mov ecx, dword [ebx + 0x14]
push ecx
mov ecx, dword [esp + 0x38]
call fcn.003ce0b0
add esp, 0xc
jmp case.default.0x3d7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0x3d78b5
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 0x3d78c2
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 0x3d78db
mov eax, dword [esp + 0x30]
call fcn.003cdc00
add esp, 4
jmp case.default.0x3d7593
mov ecx, dword [esp + 0x30]
mov eax, dword [ebx + 0x14]
call fcn.003ce140
add esp, 4
jmp case.default.0x3d7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0x3d7910
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 0x3d791d
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 0x3d7937
mov ecx, dword [esp + 0x34]
call fcn.003cdc40
add esp, 8
jmp case.default.0x3d7593
mov ecx, dword [ebx + 0x14]
push ecx
mov ecx, dword [esp + 0x38]
call fcn.003ce0b0
add esp, 0xc
jmp case.default.0x3d7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0x3d796d
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 0x3d797a
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 0x3d799e
mov eax, dword [esp + 0x30]
call fcn.003cdcb0
add esp, 4
jmp case.default.0x3d7593
mov ecx, dword [esp + 0x30]
mov eax, dword [ebx + 0x14]
call fcn.003ce190
add esp, 4
jmp case.default.0x3d7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0x3d79d3
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 0x3d79e0
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 0x3d79fe
mov ecx, dword [esp + 0x34]
call fcn.003cdd00
add esp, 8
jmp case.default.0x3d7593
mov ecx, dword [ebx + 0x14]
push ecx
mov ecx, dword [esp + 0x38]
call fcn.003ce1f0
add esp, 0xc
jmp case.default.0x3d7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0x3d7a34
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 0x3d7a41
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 0x3d7a62
xor ecx, ecx
test al, al
setne cl
push ecx
mov ecx, dword [esp + 0x30]
call fcn.003dba00
jmp case.default.0x3d7593
mov edx, dword [esp + 0x44]
mov esi, dword [esp + 0x2c]
mov eax, dword [ebx + 0x14]
push edx
call fcn.003ce280
add esp, 4
jmp case.default.0x3d7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0x3d7a9c
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 0x3d7aab
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.003dba00
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.003dba00
jmp case.default.0x3d7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0x3d7b18
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.003ce320
jmp case.default.0x3d7593
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.003ce320
jmp case.default.0x3d7593
cmp dword [ebx + 0x1c], 3
mov ecx, dword [esp + 0x30]
jne 0x3d7b5b
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 0x3d7b68
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 0x3d7b77
mov eax, dword [eax + 8]
jmp 0x3d75cf
mov edi, dword [eax + 8]
mov esi, dword [esp + 0x2c]
mov eax, dword [ebx + 0x14]
call fcn.003cdfb0
jmp case.default.0x3d7593
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 0x3d7bca
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 0x3d7bdc
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.003dba00
mov eax, dword [esi + 0x10]
push eax
mov ecx, edi
call fcn.003dba00
cmp dword [esi + 0x14], 0x10
mov eax, dword [esi + 0x10]
jb 0x3d7c0c
mov esi, dword [esi]
push esi
mov esi, edi
call fcn.003db880
mov dword [esp + 0xc0], 0xffffffff
cmp dword [esp + 0x78], 0x10
jb case.default.0x3d7593
mov ecx, dword [esp + 0x64]
push ecx
call fcn.00438a36
add esp, 4
jmp case.default.0x3d7593
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 0x3d7c82
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 0x3d7c94
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.003dba00
mov eax, dword [esi + 0x10]
push eax
mov ecx, edi
call fcn.003dba00
cmp dword [esi + 0x14], 0x10
mov eax, dword [esi + 0x10]
jb 0x3d7cc5
mov esi, dword [esi]
push esi
mov esi, edi
call fcn.003db880
mov dword [esp + 0xc0], 0xffffffff
cmp dword [esp + 0x5c], 0x10
jb 0x3d7cec
mov edx, dword [esp + 0x48]
push edx
call fcn.00438a36
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 0x3d7586
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.00438a41
mov esp, ebp
pop ebp
ret