Function at 0x41f380
Capabilities:
Decode data using base64 via winapi

Disassembly:
push ebx
mov ebx, esp
sub esp, 8
and esp, 0xfffffff8
add esp, 4
push ebp
mov ebp, dword [ebx + 4]
mov dword [esp + 4], ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x4f9518
mov eax, dword fs:[0]
push eax
push ebx
sub esp, 0x20
mov eax, dword [0x513040]
xor eax, ebp
mov dword [ebp - 0x14], eax
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov eax, ecx
mov dword [ebp - 0x28], eax
mov dword [ebp - 0x2c], eax
mov dword [ebp - 0x2c], eax
mov dword [ebp - 4], 0
xorps xmm0, xmm0
xor esi, esi
movq qword [ebp - 0x24], xmm0
xor edi, edi
mov dword [ebp - 0x1c], 0
mov dword [ebp - 0x24], esi
mov dword [ebp - 0x20], esi
mov dword [ebp - 0x1c], edi
push edi
push edi
lea ecx, [ebp - 0x18]
mov byte [ebp - 4], 1
cmp dword [ebx + 0x1c], 0xf
lea eax, [ebx + 8]
push ecx
cmova eax, dword [ebx + 8]
push edi
push 1
push edi
push eax
mov dword [ebp - 0x18], edi
call dword [sym.imp.CRYPT32.dll_CryptStringToBinaryA]
test eax, eax
jne 0x41f4a8
mov ecx, dword [sym.imp.MSVCP140.dll_class_std::basic_ostream_char__struct_std::char_traits_char___std::cout]
mov edx, str.CryptStringToBinaryA__1__:_Failed_to_convert_BASE64_private_key.__n
call fcn.00404990
mov edx, dword [ebp - 0x28]
xor ecx, ecx
xorps xmm0, xmm0
movups xmmword [edx], xmm0
mov dword [edx + 0x10], edi
lea esi, [ecx + 1]
mov dword [edx + 0x14], edi
nop dword [eax + eax]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x41f440
sub ecx, esi
push ecx
push 0
mov ecx, edx
call fcn.00404da0
mov ecx, dword [ebx + 0x1c]
cmp ecx, 0xf
jbe 0x41f487
mov edx, dword [ebx + 8]
inc ecx
mov eax, edx
cmp ecx, 0x1000
jb 0x41f47d
mov edx, dword [eax - 4]
add ecx, 0x23
sub eax, edx
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x41f5c1
push ecx
push edx
call fcn.004f5f19
add esp, 8
mov eax, dword [ebp - 0x28]
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
mov ecx, dword [ebp - 0x14]
xor ecx, ebp
call fcn.004f5edb
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret
mov eax, dword [ebp - 0x18]
test eax, eax
je 0x41f4bf
push ecx
push eax
lea ecx, [ebp - 0x24]
call fcn.00405d00
mov edi, dword [ebp - 0x1c]
mov esi, dword [ebp - 0x24]
cmp dword [ebx + 0x1c], 0xf
lea ecx, [ebp - 0x18]
push 0
push 0
push ecx
push esi
push 1
lea eax, [ebx + 8]
cmova eax, dword [ebx + 8]
push 0
push eax
call dword [sym.imp.CRYPT32.dll_CryptStringToBinaryA]
test eax, eax
jne 0x41f558
mov ecx, dword [sym.imp.MSVCP140.dll_class_std::basic_ostream_char__struct_std::char_traits_char___std::cout]
mov edx, str.CryptStringToBinaryA__2__:_Failed_to_convert_BASE64_private_key.__n
call fcn.00404990
mov edx, dword [ebp - 0x28]
xor ecx, ecx
xorps xmm0, xmm0
movups xmmword [edx], xmm0
lea eax, [ecx + 1]
mov dword [edx + 0x10], 0
mov dword [edx + 0x14], 0
mov dword [ebp - 0x2c], eax
mov al, byte [ecx]
inc ecx
test al, al
jne 0x41f511
sub ecx, dword [ebp - 0x2c]
push ecx
push 0
mov ecx, edx
call fcn.00404da0
test esi, esi
je 0x41f453
sub edi, esi
mov eax, esi
cmp edi, 0x1000
jb 0x41f549
mov esi, dword [eax - 4]
add edi, 0x23
sub eax, esi
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x41f5c1
push edi
push esi
call fcn.004f5f19
add esp, 8
jmp 0x41f453
push ecx
push dword [ebp - 0x20]
mov ecx, dword [ebp - 0x28]
push esi
call fcn.00404ba0
test esi, esi
je 0x41f58f
sub edi, esi
mov eax, esi
cmp edi, 0x1000
jb 0x41f585
mov esi, dword [eax - 4]
add edi, 0x23
sub eax, esi
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x41f5c1
push edi
push esi
call fcn.004f5f19
add esp, 8
mov ecx, dword [ebx + 0x1c]
cmp ecx, 0xf
jbe 0x41f487
mov edx, dword [ebx + 8]
inc ecx
mov eax, edx
cmp ecx, 0x1000
jb 0x41f47d
mov edx, dword [eax - 4]
add ecx, 0x23
sub eax, edx
add eax, 0xfffffffc
cmp eax, 0x1f
jbe 0x41f47d
call dword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
int3