Function at 0x4219a0
Capabilities:
Check os version
Get session user name

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x59b68b
mov eax, dword fs:[0]
push eax
sub esp, 0x658
mov eax, dword [0x608ec4]
xor eax, ebp
mov dword [ebp - 0x10], eax
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov edi, dword [ebp + 8]
lea eax, [ebp - 0x514]
push 0x400
push 0
push eax
mov dword [ebp - 0x660], edi
call fcn.005720f0
push 0x101
lea eax, [ebp - 0x114]
push 0
push eax
call fcn.005720f0
add esp, 0x18
mov dword [ebp - 0x65c], 0x101
lea eax, [ebp - 0x65c]
push eax
lea eax, [ebp - 0x114]
push eax
call dword [sym.imp.ADVAPI32.dll_GetUserNameA]
xorps xmm0, xmm0
mov dword [ebp - 0x51c], 0
movups xmmword [ebp - 0x52c], xmm0
mov dword [ebp - 0x518], 0xf
mov byte [ebp - 0x52c], 0
lea eax, [ebp - 0x544]
mov dword [ebp - 4], 0
push eax
call fcn.004216d0
mov esi, eax
lea eax, [ebp - 0x52c]
cmp eax, esi
je 0x421ade
mov ecx, dword [ebp - 0x518]
cmp ecx, 0x10
jb 0x421a9b
mov edx, dword [ebp - 0x52c]
inc ecx
mov eax, edx
cmp ecx, 0x1000
jb 0x421a91
mov edx, dword [eax - 4]
add ecx, 0x23
sub eax, edx
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x421c41
push ecx
push edx
call fcn.0056eea1
add esp, 8
mov dword [ebp - 0x51c], 0
mov dword [ebp - 0x518], 0xf
mov byte [ebp - 0x52c], 0
movups xmm0, xmmword [esi]
movups xmmword [ebp - 0x52c], xmm0
movq xmm0, qword [esi + 0x10]
movq qword [ebp - 0x51c], xmm0
mov dword [esi + 0x10], 0
mov dword [esi + 0x14], 0xf
mov byte [esi], 0
mov ecx, dword [ebp - 0x530]
cmp ecx, 0x10
jb 0x421b18
mov edx, dword [ebp - 0x544]
inc ecx
mov eax, edx
cmp ecx, 0x1000
jb 0x421b0e
mov edx, dword [eax - 4]
add ecx, 0x23
sub eax, edx
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x421c41
push ecx
push edx
call fcn.0056eea1
add esp, 8
push 0x110
lea eax, [ebp - 0x654]
push 0
push eax
call fcn.005720f0
add esp, 0xc
mov dword [ebp - 0x658], 0x114
lea eax, [ebp - 0x658]
push eax
call dword [sym.imp.KERNEL32.dll_GetVersionExW]
cmp dword [ebp - 0x654], 5
jne 0x421b64
mov eax, dword [ebp - 0x650]
test eax, eax
je 0x421b5d
cmp eax, 1
jne 0x421b64
mov ecx, str.Documents_and_Settings
jmp 0x421b69
mov ecx, str.Users
cmp dword [ebp - 0x518], 0x10
lea edx, [ebp - 0x114]
push edx
push ecx
lea eax, [ebp - 0x52c]
cmovae eax, dword [ebp - 0x52c]
push eax
lea eax, [ebp - 0x514]
push str._s_s_s
push eax
call fcn.00425000
add esp, 0x14
call fcn.00431e1a
mov ecx, eax
test ecx, ecx
je 0x421c46
mov eax, dword [ecx]
mov eax, dword [eax + 0xc]
call eax
add eax, 0x10
mov dword [edi], eax
lea eax, [ebp - 0x514]
mov byte [ebp - 4], 1
push eax
mov ecx, edi
call fcn.004033a0
test al, al
jne 0x421bec
lea ecx, [ebp - 0x514]
lea edx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x421bd4
sub ecx, edx
lea eax, [ebp - 0x514]
push ecx
push eax
mov ecx, edi
call fcn.004036d0
mov ecx, dword [ebp - 0x518]
cmp ecx, 0x10
jb 0x421c22
mov edx, dword [ebp - 0x52c]
inc ecx
mov eax, edx
cmp ecx, 0x1000
jb 0x421c18
mov edx, dword [eax - 4]
add ecx, 0x23
sub eax, edx
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x421c50
push ecx
push edx
call fcn.0056eea1
add esp, 8
mov eax, edi
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.0056ee93
mov esp, ebp
pop ebp
ret 4
call fcn.0057504f
push 0x80004005
call fcn.00403680
call fcn.0057504f
int3