Function at 0x1c6450
Capabilities:
Encode data using xor

Disassembly:
mov eax, 0x1664
call fcn.001d1470
push ebx
xor ebx, ebx
push 0x63
lea eax, [esp + 0x109]
push ebx
push eax
mov byte [esp + 0x110], bl
call fcn.001cf3a0
push 0xff
lea ecx, [esp + 0x15]
push ebx
push ecx
call fcn.001cf3a0
push 0x3ff
lea edx, [esp + 0x285]
push ebx
push edx
mov byte [esp + 0x28c], bl
call fcn.001cf3a0
push 0xff
lea eax, [esp + 0x191]
push ebx
push eax
mov byte [esp + 0x198], bl
call fcn.001cf3a0
push 0xfff
lea ecx, [esp + 0x69d]
push ebx
push ecx
mov byte [esp + 0x6a4], bl
call fcn.001cf3a0
mov eax, dword [0x1d9f38]
add eax, 7
lea edx, [esp + 0x140]
add esp, 0x3c
sub edx, eax
mov cl, byte [eax]
mov byte [edx + eax], cl
inc eax
cmp cl, bl
jne 0x1c64e6
push esi
lea edx, [esp + 0x108]
push 0x2f
push edx
call fcn.001c7420
add esp, 8
cmp eax, ebx
je 0x1c651e
lea esi, [esp + 0x16c]
mov ecx, eax
sub esi, eax
mov dl, byte [ecx]
mov byte [esi + ecx], dl
inc ecx
cmp dl, bl
jne 0x1c6512
mov byte [eax], bl
mov eax, dword [0x1d6638]
mov ecx, dword [0x1d663c]
mov edx, dword [0x1d6640]
mov dword [esp + 8], eax
mov eax, dword [0x1d6644]
mov dword [esp + 0xc], ecx
mov cl, byte [0x1d6648]
mov dword [esp + 0x14], eax
mov dword [esp + 0x10], edx
mov byte [esp + 0x18], cl
lea eax, [esp + 8]
cmp byte [esp + 8], bl
je 0x1c656a
mov ecx, eax
lea ebx, [ebx]
xor byte [eax], 0xf
inc ecx
mov eax, ecx
cmp byte [ecx], bl
jne 0x1c6560
xor eax, eax
lea esp, [esp]
mov cl, byte [esp + eax + 8]
mov byte [esp + eax + 0x26c], cl
inc eax
cmp cl, bl
jne 0x1c6570
lea eax, [esp + 0x26c]
dec eax
mov cl, byte [eax + 1]
inc eax
cmp cl, bl
jne 0x1c6588
mov dl, byte [0x1d5c8a]
push ebp
mov bp, word [0x1d5c88]
push edi
mov ecx, 0x15
mov esi, 0x1d6650
lea edi, [esp + 0x10]
mov word [eax], bp
rep movsd dword es:[edi], dword [esi]
mov byte [eax + 2], dl
lea eax, [esp + 0x10]
cmp byte [esp + 0x10], bl
je 0x1c65cb
mov ecx, eax
xor byte [eax], 0xf
inc ecx
mov eax, ecx
cmp byte [ecx], bl
jne 0x1c65c1
lea eax, [esp + 0x10]
mov edx, eax
mov cl, byte [eax]
inc eax
cmp cl, bl
jne 0x1c65d1
lea edi, [esp + 0x274]
sub eax, edx
dec edi
mov cl, byte [edi + 1]
inc edi
cmp cl, bl
jne 0x1c65e2
mov ecx, eax
shr ecx, 2
mov esi, edx
rep movsd dword es:[edi], dword [esi]
mov ecx, eax
and ecx, 3
lea eax, [esp + 0x274]
rep movsb byte es:[edi], byte [esi]
dec eax
mov cl, byte [eax + 1]
inc eax
cmp cl, bl
jne 0x1c6602
movzx ecx, byte [0x1d5c8a]
mov edx, dword [0x1d66a4]
mov word [eax], bp
mov byte [eax + 2], cl
mov eax, dword [0x1d66a8]
movzx ecx, byte [0x1d66ac]
mov dword [esp + 0x14], eax
mov dword [esp + 0x10], edx
mov byte [esp + 0x18], cl
lea eax, [esp + 0x10]
cmp dl, bl
je 0x1c664a
mov ecx, eax
nop
xor byte [eax], 0xf
inc ecx
mov eax, ecx
cmp byte [ecx], bl
jne 0x1c6640
lea eax, [esp + 0x10]
mov edx, eax
mov cl, byte [eax]
inc eax
cmp cl, bl
jne 0x1c6650
lea edi, [esp + 0x274]
sub eax, edx
dec edi
mov cl, byte [edi + 1]
inc edi
cmp cl, bl
jne 0x1c6661
mov ecx, eax
shr ecx, 2
mov esi, edx
rep movsd dword es:[edi], dword [esi]
mov ecx, eax
and ecx, 3
lea eax, [esp + 0x274]
rep movsb byte es:[edi], byte [esi]
dec eax
mov cl, byte [eax + 1]
inc eax
cmp cl, bl
jne 0x1c6681
mov dl, byte [0x1d5c8a]
mov ecx, dword [0x1d66b4]
mov word [eax], bp
mov byte [eax + 2], dl
mov eax, dword [0x1d66b0]
mov edx, dword [0x1d66b8]
mov dword [esp + 0x10], eax
mov eax, dword [0x1d66bc]
mov dword [esp + 0x14], ecx
mov cl, byte [0x1d66c0]
mov dword [esp + 0x1c], eax
mov dword [esp + 0x18], edx
mov byte [esp + 0x20], cl
lea eax, [esp + 0x10]
cmp byte [esp + 0x10], bl
je 0x1c66db
mov ecx, eax
xor byte [eax], 0xf
inc ecx
mov eax, ecx
cmp byte [ecx], bl
jne 0x1c66d1
lea eax, [esp + 0x10]
mov edx, eax
mov cl, byte [eax]
inc eax
cmp cl, bl
jne 0x1c66e1
lea edi, [esp + 0x274]
sub eax, edx
dec edi
mov cl, byte [edi + 1]
inc edi
cmp cl, bl
jne 0x1c66f2
mov ecx, eax
shr ecx, 2
mov esi, edx
rep movsd dword es:[edi], dword [esi]
mov ecx, eax
and ecx, 3
lea eax, [esp + 0x274]
rep movsb byte es:[edi], byte [esi]
dec eax
mov cl, byte [eax + 1]
inc eax
cmp cl, bl
jne 0x1c6712
mov dl, byte [0x1d5c8a]
mov ecx, 0xc
mov esi, 0x1d66c4
lea edi, [esp + 0x10]
mov word [eax], bp
rep movsd dword es:[edi], dword [esi]
mov byte [eax + 2], dl
lea eax, [esp + 0x10]
cmp byte [esp + 0x10], bl
je 0x1c674c
mov ecx, eax
xor byte [eax], 0xf
inc ecx
mov eax, ecx
cmp byte [ecx], bl
jne 0x1c6742
lea eax, [esp + 0x10]
mov edx, eax
mov cl, byte [eax]
inc eax
cmp cl, bl
jne 0x1c6752
lea edi, [esp + 0x274]
sub eax, edx
dec edi
mov cl, byte [edi + 1]
inc edi
cmp cl, bl
jne 0x1c6763
mov ecx, eax
shr ecx, 2
mov esi, edx
rep movsd dword es:[edi], dword [esi]
mov ecx, eax
and ecx, 3
lea eax, [esp + 0x274]
rep movsb byte es:[edi], byte [esi]
dec eax
mov cl, byte [eax + 1]
inc eax
cmp cl, bl
jne 0x1c6783
movzx ecx, byte [0x1d5c8a]
mov edx, dword [0x1d66f4]
mov word [eax], bp
mov byte [eax + 2], cl
mov eax, dword [0x1d66f8]
mov ecx, dword [0x1d66fc]
mov dword [esp + 0x14], eax
mov ax, word [0x1d6704]
mov dword [esp + 0x18], ecx
movzx ecx, byte [0x1d6706]
mov dword [esp + 0x10], edx
mov edx, dword [0x1d6700]
mov word [esp + 0x20], ax
mov dword [esp + 0x1c], edx
mov byte [esp + 0x22], cl
lea eax, [esp + 0x10]
cmp byte [esp + 0x10], bl
je 0x1c67eb
mov ecx, eax
xor byte [eax], 0xf
inc ecx
mov eax, ecx
cmp byte [ecx], bl
jne 0x1c67e1
lea eax, [esp + 0x10]
mov edx, eax
mov cl, byte [eax]
inc eax
cmp cl, bl
jne 0x1c67f1
lea edi, [esp + 0x274]
sub eax, edx
dec edi
mov cl, byte [edi + 1]
inc edi
cmp cl, bl
jne 0x1c6802
mov ecx, eax
shr ecx, 2
mov esi, edx
rep movsd dword es:[edi], dword [esi]
mov ecx, eax
and ecx, 3
rep movsb byte es:[edi], byte [esi]
lea eax, [esp + 0x274]
pop edi
dec eax
pop ebp
mov cl, byte [eax + 1]
inc eax
cmp cl, bl
jne 0x1c6824
mov edx, dword [0x1d5c7c]
mov cl, byte [0x1d5c80]
mov dword [eax], edx
mov byte [eax + 4], cl
lea eax, [esp + 0x26c]
dec eax
mov cl, byte [eax + 1]
inc eax
cmp cl, bl
jne 0x1c6845
mov dx, word [0x1d6008]
mov cl, byte [0x1d600a]
mov esi, dword [esp + 0x1670]
mov word [eax], dx
mov byte [eax + 2], cl
mov eax, esi
lea edx, [eax + 1]
lea esp, [esp]
mov cl, byte [eax]
inc eax
cmp cl, bl
jne 0x1c6870
sub eax, edx
push esi
push eax
lea edx, [esp + 0x110]
push edx
lea eax, [esp + 0x178]
push eax
lea ecx, [esp + 0x27c]
push ecx
lea edx, [esp + 0x680]
push edx
call fcn.001c6dfd
add esp, 0x18
lea eax, [esp + 0x66c]
lea edx, [eax + 1]
pop esi
mov edi, edi
mov cl, byte [eax]
inc eax
cmp cl, bl
jne 0x1c68b0
sub eax, edx
push eax
lea eax, [esp + 0x66c]
push eax
lea ecx, [esp + 0x10c]
push ecx
call fcn.001c5fe0
add esp, 0xc
pop ebx
add esp, 0x1664
ret