Function at 0x491050
Capabilities:
Access the windows event log
Write file on windows

Disassembly:
push ebp
mov ebp, esp
mov eax, 0x208
call fcn.00537170
mov eax, dword [0x5fad8c]
xor eax, ebp
mov dword [ebp - 4], eax
push ebx
push esi
push edi
push 0xfffffffffffffff4
call dword [sym.imp.KERNEL32.dll_GetStdHandle]
mov esi, eax
test esi, esi
je 0x4910de
push esi
call dword [sym.imp.KERNEL32.dll_GetFileType]
test eax, eax
je 0x4910de
lea eax, [ebp + 0xc]
push eax
push 0
push dword [ebp + 8]
lea eax, [ebp - 0x204]
push 0x200
push eax
call fcn.00447b20
mov ecx, dword [eax]
push dword [eax + 4]
or ecx, 1
push ecx
call dword [sym.imp.api_ms_win_crt_stdio_l1_1_0.dll___stdio_common_vsprintf]
add esp, 0x1c
or ecx, 0xffffffff
test eax, eax
cmovs eax, ecx
lea ecx, [ebp - 0x208]
push 0
push ecx
test eax, eax
mov ecx, 0x200
cmovs eax, ecx
push eax
lea eax, [ebp - 0x204]
push eax
push esi
call dword [sym.imp.KERNEL32.dll_WriteFile]
jmp 0x4912b2
mov esi, dword [ebp + 8]
lea ecx, [esi + 1]
mov al, byte [esi]
inc esi
test al, al
jne 0x4910e4
sub esi, ecx
lea edi, [esi + 1]
lea eax, [edi + edi]
call fcn.00537220
mov ebx, esp
test ebx, ebx
jne 0x491108
mov ebx, str.no_stack_
jmp 0x49121f
push edi
push ebx
push edi
push dword [ebp + 8]
push 0
push 0
call dword [sym.imp.KERNEL32.dll_MultiByteToWideChar]
test eax, eax
jne 0x4911c1
xor ecx, ecx
test edi, edi
je 0x4911c1
cmp edi, 0x20
jb 0x4911a5
mov edx, dword [ebp + 8]
lea eax, [esi + edx]
cmp ebx, eax
ja 0x491140
lea eax, [ebx + esi*2]
cmp eax, edx
jae 0x4911a5
mov eax, dword [ebp + 8]
lea edx, [ebx + 0x20]
mov esi, edi
and esi, 0xffffffe0
nop dword [eax + eax]
movq xmm0, qword [eax + ecx]
lea edx, [edx + 0x40]
punpcklbw xmm0, xmm0
psraw xmm0, 8
movups xmmword [edx - 0x60], xmm0
movq xmm0, qword [eax + ecx + 8]
punpcklbw xmm0, xmm0
psraw xmm0, 8
movups xmmword [edx - 0x50], xmm0
movq xmm0, qword [eax + ecx + 0x10]
punpcklbw xmm0, xmm0
psraw xmm0, 8
movups xmmword [edx - 0x40], xmm0
movq xmm0, qword [eax + ecx + 0x18]
add ecx, 0x20
punpcklbw xmm0, xmm0
psraw xmm0, 8
movups xmmword [edx - 0x30], xmm0
cmp ecx, esi
jb 0x491150
cmp ecx, edi
jae 0x4911c1
nop dword [eax]
mov eax, dword [ebp + 8]
movsx ax, byte [ecx + eax]
mov word [ebx + ecx*2], ax
inc ecx
cmp ecx, edi
jb 0x4911b0
xor edx, edx
test edi, edi
je 0x49121f
lea esi, [edx + 0x53]
nop word [eax + eax]
cmp word [ebx + edx*2], 0x25
jne case.0x4911f2.43
lea ecx, [edx + 1]
lea ecx, [ebx + ecx*2]
nop dword [eax]
movzx eax, word [ecx]
add eax, 0xffffffd6
cmp eax, 0x49
ja case.0x4911f2.43
movzx eax, byte [eax + 0x4912e4]
jmp dword [eax*4 + 0x4912cc]
inc edx
add ecx, 2
jmp 0x4911e0
mov word [ecx], si
jmp case.0x4911f2.43
mov eax, 0x73
jmp 0x491217
mov eax, 0x43
jmp 0x491217
mov eax, 0x63
mov word [ecx], ax
inc edx
cmp edx, edi
jb 0x4911d0
lea eax, [ebp + 0xc]
push eax
push 0
push ebx
lea eax, [ebp - 0x204]
push 0xff
push eax
call fcn.00447b20
mov ecx, dword [eax]
push dword [eax + 4]
or ecx, 1
push ecx
call dword [sym.imp.api_ms_win_crt_stdio_l1_1_0.dll___stdio_common_vswprintf]
add esp, 0x1c
xor eax, eax
mov word [ebp - 6], ax
call fcn.00490f30
test eax, eax
jle 0x49129c
push str.OpenSSL
push 0
call dword [sym.imp.ADVAPI32.dll_RegisterEventSourceW]
mov esi, eax
test esi, esi
je 0x4912b2
push 0
lea eax, [ebp - 0x204]
mov dword [ebp - 0x208], eax
lea eax, [ebp - 0x208]
push eax
push 0
push 1
push 0
push 0
push 0
push 1
push esi
call dword [sym.imp.ADVAPI32.dll_ReportEventW]
push esi
call dword [sym.imp.ADVAPI32.dll_DeregisterEventSource]
jmp 0x4912b2
push 0x10
push str.OpenSSL:_FATAL
lea eax, [ebp - 0x204]
push eax
push 0
call dword [sym.imp.USER32.dll_MessageBoxW]
lea esp, [ebp - 0x214]
pop edi
pop esi
pop ebx
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.0053658e
mov esp, ebp
pop ebp
ret