Function at 0x401750
Capabilities:
Encode data using base64
Encode data using xor
Hash data with crc32

Disassembly:
push ebp
mov ebp, esp
sub esp, 0xf0
mov eax, dword [0x406004]
xor eax, ebp
mov dword [ebp - 8], eax
push ebx
push esi
mov esi, dword [ebp + 8]
push edi
mov edi, edx
mov dword [ebp - 0xf0], esi
mov dword [ebp - 0xec], edi
mov edx, ecx
mov dword [ebp - 0xe0], edx
test edi, edi
je 0x401b06
test esi, esi
je 0x401b06
mov ecx, edi
lea ebx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x401794
sub ecx, ebx
je 0x401b06
mov ebx, edi
lea ecx, [ebx + 1]
mov al, byte [ebx]
inc ebx
test al, al
jne 0x4017a8
sub ebx, ecx
test edx, edx
je 0x401b06
cmp edx, 0x64
jae 0x4017f0
lea eax, [ebx + 1]
push eax
call fcn.00402a14
add esp, 4
mov dword [esi], eax
sub eax, edi
nop
mov cl, byte [edi]
lea edi, [edi + 1]
mov byte [eax + edi - 1], cl
test cl, cl
jne 0x4017d0
mov al, 1
pop edi
pop esi
pop ebx
mov ecx, dword [ebp - 8]
xor ecx, ebp
call fcn.00402a06
mov esp, ebp
pop ebp
ret
lea eax, [ebx + 0x45]
push eax
call fcn.00402a14
mov dword [ebp - 0xe8], eax
add esp, 4
xor esi, esi
lea edx, [eax + 5]
mov eax, dword [ebp - 0xe0]
mov ecx, eax
shr ecx, 0x18
mov byte [edx], cl
mov ecx, eax
shr eax, 8
mov byte [edx + 2], al
mov eax, dword [ebp - 0xe0]
mov byte [edx + 3], al
mov eax, dword [ebp - 0xe8]
shr ecx, 0x10
add eax, 9
mov byte [edx + 1], cl
mov edi, eax
mov dword [ebp - 0xe0], eax
nop dword [eax]
call dword [sym.imp.KERNEL32.dll_GetTickCount]
xor eax, dword [0x406018]
imul edx, eax, 0x6d
add edx, 0x43
mov ecx, edx
mov dword [0x406018], edx
shr ecx, 0x18
mov eax, edx
shr eax, 0x10
xor cl, al
mov eax, edx
shr eax, 8
xor cl, al
xor cl, dl
mov byte [edi + esi], cl
inc esi
cmp esi, 4
jl 0x401840
mov edi, dword [ebp - 0xec]
or edx, 0xffffffff
mov esi, edi
test ebx, ebx
je 0x4018a7
mov edi, ebx
movzx ecx, byte [esi]
lea esi, [esi + 1]
movzx eax, dl
xor ecx, eax
shr edx, 8
xor edx, dword [ecx*4 + 0x4043e0]
sub edi, 1
jne 0x401887
mov edi, dword [ebp - 0xec]
mov ecx, dword [ebp - 0xe8]
not edx
mov eax, edx
shr eax, 0x18
mov byte [ecx + 0xd], al
mov eax, edx
shr eax, 0x10
mov byte [ecx + 0xe], al
mov eax, edx
shr eax, 8
mov byte [ecx + 0xf], al
mov eax, ebx
shr eax, 0x18
mov byte [ecx + 0x11], al
mov eax, ebx
shr eax, 0x10
mov byte [ecx + 0x12], al
mov eax, ebx
shr eax, 8
mov byte [ecx + 0x13], al
lea eax, [ecx + 0x19]
mov byte [ecx + 0x10], dl
mov edx, ebx
mov byte [ecx + 0x14], bl
mov ecx, edi
push eax
call fcn.004021a0
mov edx, dword [ebp - 0xe8]
lea edi, [ebp - 0x18]
mov ebx, eax
add esp, 4
mov ecx, ebx
shr eax, 8
shr ecx, 0x18
mov byte [edx + 0x15], cl
mov ecx, ebx
mov byte [edx + 0x17], al
lea eax, [ebx + 0x23]
shr ecx, 0x10
and eax, 0xfffffff0
mov byte [edx + 0x18], bl
xor esi, esi
mov byte [edx + 0x16], cl
movups xmm0, xmmword [str.SmartLink700_Key]
mov dword [ebp - 0xe0], eax
lea ebx, [esi + 0x10]
movups xmmword [ebp - 0x18], xmm0
mov eax, esi
lea ecx, [ebp - 0x28]
shr eax, 2
lea edi, [edi + 1]
mov edx, esi
add ecx, eax
mov al, byte [edi - 1]
and edx, 3
inc esi
mov byte [ecx + edx*4], al
sub ebx, 1
jne 0x401935
lea edx, [ebp - 0x28]
lea ecx, [ebp - 0xdc]
call fcn.004015f0
mov edi, dword [ebp - 0xe8]
lea ecx, [ebp - 0xdc]
mov esi, dword [ebp - 0xe0]
lea ebx, [edi + 5]
push ebx
push esi
mov edx, ebx
call fcn.00401080
mov eax, esi
mov byte [edi], 2
add esp, 8
or edx, 0xffffffff
test eax, eax
je 0x4019aa
nop
movzx ecx, byte [ebx]
lea ebx, [ebx + 1]
movzx eax, dl
xor ecx, eax
shr edx, 8
xor edx, dword [ecx*4 + 0x4043e0]
sub esi, 1
jne 0x401990
mov esi, dword [ebp - 0xe0]
not edx
mov eax, edx
mov byte [edi + 4], dl
shr eax, 0x18
add esi, 5
mov byte [edi + 1], al
mov eax, edx
shr eax, 0x10
mov byte [edi + 2], al
mov eax, edx
shr eax, 8
mov byte [edi + 3], al
lea eax, [esi + esi]
push eax
mov dword [ebp - 0xe0], esi
call fcn.00402a14
mov ebx, eax
add esp, 4
mov eax, dword [ebp - 0xf0]
xor ecx, ecx
mov dword [eax], ebx
nop
mov al, byte [edi + 1]
lea edi, [edi + 3]
mov dl, byte [edi - 3]
mov byte [ebp - 0xe1], al
mov al, byte [edi - 1]
mov byte [ebp - 0xe2], al
movzx edx, dl
mov eax, edx
and edx, 3
shr eax, 2
shl edx, 4
movzx eax, byte [eax + str.ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_]
mov byte [ecx + ebx], al
inc ecx
lea eax, [ebx + ecx]
inc ecx
mov dword [ebp - 0xec], eax
cmp esi, 1
je 0x401aca
movzx esi, byte [ebp - 0xe1]
mov eax, esi
and esi, 0xf
shr eax, 4
or eax, edx
mov dword [ebp - 0xf0], esi
cmp dword [ebp - 0xe0], 2
mov edx, dword [ebp - 0xec]
movzx eax, byte [eax + str.ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_]
mov byte [edx], al
lea edx, [ebx + ecx]
mov dword [ebp - 0xec], edx
je 0x401aba
movzx esi, byte [ebp - 0xe2]
mov eax, dword [ebp - 0xf0]
mov edx, esi
shl eax, 2
and esi, 0x3f
shr edx, 6
or edx, eax
movzx eax, byte [edx + str.ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_]
mov edx, dword [ebp - 0xec]
mov byte [edx], al
movzx eax, byte [esi + str.ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_]
mov esi, dword [ebp - 0xe0]
mov byte [ecx + ebx + 1], al
add ecx, 2
sub esi, 3
mov dword [ebp - 0xe0], esi
jne 0x4019f0
jmp 0x401ae1
mov al, byte [esi*4 + str.ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_]
mov byte [edx], al
mov byte [ecx + ebx + 1], 0x3d
jmp 0x401ade
mov al, byte [edx + str.ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_]
mov edx, dword [ebp - 0xec]
mov byte [edx], al
mov word [ecx + ebx], 0x3d3d
add ecx, 2
push dword [ebp - 0xe8]
mov byte [ecx + ebx], 0
call fcn.00402a1d
add esp, 4
mov al, 1
pop edi
pop esi
pop ebx
mov ecx, dword [ebp - 8]
xor ecx, ebp
call fcn.00402a06
mov esp, ebp
pop ebp
ret
mov ecx, dword [ebp - 8]
xor al, al
pop edi
pop esi
xor ecx, ebp
pop ebx
call fcn.00402a06
mov esp, ebp
pop ebp
ret