Function at 0x437ca6
Capabilities:
Encode data using xor
Encrypt data using rc4 ksa
Hash data with crc32

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x473dfc
mov eax, dword fs:[0]
push eax
mov eax, 0x10050
call fcn.004615c0
mov eax, dword [0x48d390]
xor eax, ebp
mov dword [ebp - 0x14], eax
push ebx
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov edi, ecx
xor ebx, ebx
cmp edi, ebx
je 0x437f4c
cmp dword [ebp + 8], 0x46
jbe 0x437f4c
push 0xffff
lea eax, [ebp - 0x10013]
push ebx
push eax
call fcn.00452ef0
mov eax, dword [0x497430]
add esp, 0xc
mov dword [ebp - 0x1000e], eax
mov eax, dword [0x497434]
push 0x10
mov dword [ebp - 0x1000a], eax
mov esi, 0x49741c
lea eax, [ebp - 0x10006]
push esi
push eax
mov byte [ebp - 0x10014], 1
mov byte [ebp - 0x10013], bl
call fcn.00452940
add esp, 0xc
push dword [ebp + 8]
lea eax, [ebp - 0xfff6]
push edi
push eax
call fcn.00452940
add esp, 0xc
cmp byte [0x4971f3], bl
je 0x437dc4
push ebx
lea ecx, [ebp - 0x10040]
mov dword [ebp - 0x10028], 0xf
call fcn.00402a2a
lea eax, [ebp - 0x10040]
push eax
push esi
push 0x10
pop edi
mov dword [ebp - 4], ebx
call fcn.0042e07f
cmp dword [ebp - 0x10028], edi
mov eax, dword [ebp - 0x1003c]
pop ecx
pop ecx
jae 0x437d97
lea eax, [ebp - 0x1003c]
push eax
push dword [0x497434]
mov esi, 0x49ede8
push dword [0x497430]
push str.Userid__I64d___MachineID__s__n
call fcn.004373b7
add esp, 0x10
push ebx
push 1
lea ecx, [ebp - 0x10040]
call fcn.00402ad8
mov ecx, dword [ebp + 8]
add ecx, 0x1e
mov dword [ebp - 0x10054], ecx
add ecx, 0xfffffffa
cmp ecx, ebx
push 0xfffffffffffffffd
lea eax, [ebp - 0x1000e]
pop edx
jbe 0x437dfb
movzx edi, byte [eax]
mov esi, edx
and esi, 0xff
xor esi, edi
shr edx, 8
xor edx, dword [esi*4 + 0x47d768]
inc eax
dec ecx
jne 0x437de0
mov dword [ebp - 0x10012], edx
mov dword [ebp - 0x1004c], ebx
mov dword [ebp - 0x10048], ebx
mov dword [ebp - 0x10044], ebx
mov dword [ebp - 4], 1
cmp dword [0x49efc4], 0x10
mov eax, dword [0x49efb0]
jae 0x437e2d
mov eax, 0x49efb0
push eax
call dword [0x478424]
mov edi, eax
cmp edi, ebx
mov dword [ebp - 0x10058], edi
je 0x437ee2
lea esi, [ebp - 0x10050]
call fcn.0041e7f5
mov eax, dword [edi + 0xc]
xor esi, esi
jmp 0x437e7f
mov eax, dword [eax]
mov eax, dword [eax]
mov dword [ebp - 0x1005c], eax
lea eax, [ebp - 0x1005c]
push eax
lea edi, [ebp - 0x10050]
call fcn.0040b227
mov eax, dword [ebp - 0x10058]
mov eax, dword [eax + 0xc]
inc esi
lea eax, [eax + esi*4]
cmp dword [eax], ebx
jne 0x437e56
push ebx
call fcn.0045302f
pop ecx
push eax
call fcn.00455d93
cmp dword [ebp - 0x1004c], ebx
pop ecx
jne 0x437e9d
xor esi, esi
jmp 0x437eac
mov esi, dword [ebp - 0x10048]
sub esi, dword [ebp - 0x1004c]
sar esi, 2
call fcn.00455da0
xor edx, edx
div esi
cmp dword [ebp - 0x1004c], ebx
mov esi, edx
je 0x437ed2
mov eax, dword [ebp - 0x10048]
sub eax, dword [ebp - 0x1004c]
sar eax, 2
cmp esi, eax
jb 0x437ed7
call fcn.004534a3
mov eax, dword [ebp - 0x1004c]
mov esi, dword [eax + esi*4]
jmp 0x437ee5
or esi, 0xffffffff
push ebx
push 2
push 2
call dword [0x478438]
mov edi, eax
movzx eax, word [0x48eb1c]
push eax
mov word [ebp - 0x10024], 2
call dword [0x478444]
push 0x10
mov word [ebp - 0x10022], ax
lea eax, [ebp - 0x10024]
push eax
push ebx
push dword [ebp - 0x10054]
lea eax, [ebp - 0x10014]
push eax
push edi
mov dword [ebp - 0x10020], esi
call dword [0x47843c]
push edi
mov ebx, eax
call dword [0x478434]
lea esi, [ebp - 0x10050]
call fcn.00427fae
mov eax, ebx
jmp 0x437f4f
or eax, 0xffffffff
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov ecx, dword [ebp - 0x14]
xor ecx, ebp
call fcn.00452923
leave
ret 4