Function at 0x57ef64
Capabilities:
Encode data using xor
Encrypt data using rc4 ksa

Disassembly:
push ebp
mov ebp, esp
add esp, 0xffffff9c
push ebx
push esi
push edi
mov dword [ebp - 0xc], ecx
mov dword [ebp - 8], edx
mov dword [ebp - 4], eax
mov eax, dword [ebp + 0x10]
push eax
lea eax, [ebp - 0x64]
push eax
mov ecx, dword [ebp + 0x14]
mov edx, dword [ebp - 0xc]
mov eax, dword [ebp - 8]
call fcn.0057a614
mov eax, dword [ebp - 4]
cmp byte [eax + 0xc0], 0
jne 0x57f654
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x60]
mov edx, dword [ebp - 4]
sub eax, dword [edx + 0x58]
je 0x57f664
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x64]
mov edx, dword [ebp - 4]
sub eax, dword [edx + 0x5c]
je 0x57f664
mov eax, dword [ebp + 0x14]
sub eax, dword [ebp - 8]
mov dword [ebp - 0x2c], eax
mov eax, dword [ebp + 0x10]
sub eax, dword [ebp - 0xc]
mov dword [ebp - 0x30], eax
mov eax, dword [ebp - 0x2c]
cdq
xor eax, edx
sub eax, edx
mov ecx, eax
mov eax, dword [ebp - 0x30]
cdq
xor eax, edx
sub eax, edx
cmp ecx, eax
jne 0x57f00c
mov eax, dword [ebp + 0x14]
push eax
mov eax, dword [ebp + 0x10]
push eax
mov eax, dword [ebp + 0xc]
push eax
movzx eax, byte [ebp + 8]
push eax
mov ecx, dword [ebp - 0xc]
mov edx, dword [ebp - 8]
mov eax, dword [ebp - 4]
call fcn.0057de6c
jmp 0x57f664
cmp dword [ebp - 0x2c], 0
jne 0x57f06f
cmp dword [ebp - 0x30], 0
jle 0x57f031
mov eax, dword [ebp + 0x10]
dec eax
push eax
mov eax, dword [ebp + 0xc]
push eax
mov ecx, dword [ebp - 0xc]
mov edx, dword [ebp - 8]
mov eax, dword [ebp - 4]
call fcn.0057d078
jmp 0x57f04e
cmp dword [ebp - 0x30], 0
jge 0x57f04e
mov eax, dword [ebp - 0xc]
push eax
mov eax, dword [ebp + 0xc]
push eax
mov ecx, dword [ebp + 0x10]
inc ecx
mov edx, dword [ebp - 8]
mov eax, dword [ebp - 4]
call fcn.0057d078
cmp byte [ebp + 8], 0
je 0x57f664
mov eax, dword [ebp + 0xc]
push eax
mov ecx, dword [ebp + 0x10]
mov edx, dword [ebp + 0x14]
mov eax, dword [ebp - 4]
call fcn.0057bd1c
jmp 0x57f664
cmp dword [ebp - 0x30], 0
jne 0x57f0d2
cmp dword [ebp - 0x2c], 0
jle 0x57f094
mov eax, dword [ebp + 0x14]
dec eax
push eax
mov eax, dword [ebp + 0xc]
push eax
mov ecx, dword [ebp - 0xc]
mov edx, dword [ebp - 8]
mov eax, dword [ebp - 4]
call fcn.0057c9b4
jmp 0x57f0b1
cmp dword [ebp - 0x2c], 0
jge 0x57f0b1
mov eax, dword [ebp - 8]
push eax
mov eax, dword [ebp + 0xc]
push eax
mov edx, dword [ebp + 0x14]
inc edx
mov ecx, dword [ebp - 0xc]
mov eax, dword [ebp - 4]
call fcn.0057c9b4
cmp byte [ebp + 8], 0
je 0x57f664
mov eax, dword [ebp + 0xc]
push eax
mov ecx, dword [ebp + 0x10]
mov edx, dword [ebp + 0x14]
mov eax, dword [ebp - 4]
call fcn.0057bd1c
jmp 0x57f664
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x58]
mov dword [ebp - 0x10], eax
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x60]
dec eax
mov dword [ebp - 0x14], eax
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x5c]
mov dword [ebp - 0x18], eax
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x64]
dec eax
mov dword [ebp - 0x1c], eax
cmp dword [ebp - 0x2c], 0
jle 0x57f11f
mov eax, dword [ebp - 8]
cmp eax, dword [ebp - 0x14]
jg 0x57f664
mov eax, dword [ebp + 0x14]
cmp eax, dword [ebp - 0x10]
jl 0x57f664
mov dword [ebp - 0x24], 1
jmp 0x57f158
mov eax, dword [ebp + 0x14]
cmp eax, dword [ebp - 0x14]
jg 0x57f664
mov eax, dword [ebp - 8]
cmp eax, dword [ebp - 0x10]
jl 0x57f664
mov dword [ebp - 0x24], 0xffffffff
neg dword [ebp - 8]
neg dword [ebp + 0x14]
neg dword [ebp - 0x2c]
neg dword [ebp - 0x10]
neg dword [ebp - 0x14]
lea edx, [ebp - 0x14]
lea eax, [ebp - 0x10]
call fcn.00573dd4
cmp dword [ebp - 0x30], 0
jle 0x57f17f
mov eax, dword [ebp - 0xc]
cmp eax, dword [ebp - 0x1c]
jg 0x57f664
mov eax, dword [ebp + 0x10]
cmp eax, dword [ebp - 0x18]
jl 0x57f664
mov dword [ebp - 0x28], 1
jmp 0x57f1b8
mov eax, dword [ebp + 0x10]
cmp eax, dword [ebp - 0x1c]
jg 0x57f664
mov eax, dword [ebp - 0xc]
cmp eax, dword [ebp - 0x18]
jl 0x57f664
mov dword [ebp - 0x28], 0xffffffff
neg dword [ebp - 0xc]
neg dword [ebp + 0x10]
neg dword [ebp - 0x30]
neg dword [ebp - 0x18]
neg dword [ebp - 0x1c]
lea edx, [ebp - 0x1c]
lea eax, [ebp - 0x18]
call fcn.00573dd4
mov eax, dword [ebp - 0x2c]
cmp eax, dword [ebp - 0x30]
jge 0x57f216
lea edx, [ebp - 0xc]
lea eax, [ebp - 8]
call fcn.00573dd4
lea edx, [ebp + 0x10]
lea eax, [ebp + 0x14]
call fcn.00573dd4
lea edx, [ebp - 0x30]
lea eax, [ebp - 0x2c]
call fcn.00573dd4
lea edx, [ebp - 0x18]
lea eax, [ebp - 0x10]
call fcn.00573dd4
lea edx, [ebp - 0x1c]
lea eax, [ebp - 0x14]
call fcn.00573dd4
lea edx, [ebp - 0x28]
lea eax, [ebp - 0x24]
call fcn.00573dd4
lea eax, [ebp - 0x38]
mov dword [ebp - 0x44], eax
lea eax, [ebp - 0x34]
mov dword [ebp - 0x48], eax
mov eax, dword [ebp - 0x28]
mov dword [ebp - 0x20], eax
jmp 0x57f22e
lea eax, [ebp - 0x34]
mov dword [ebp - 0x44], eax
lea eax, [ebp - 0x38]
mov dword [ebp - 0x48], eax
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x44]
imul dword [ebp - 0x28]
mov dword [ebp - 0x20], eax
xor eax, eax
mov dword [ebp - 0x3c], eax
mov eax, dword [ebp - 0x30]
shl eax, 0x10
cdq
idiv dword [ebp - 0x2c]
mov word [ebp - 0x4c], ax
mov word [ebp - 0x4a], 0
mov eax, dword [ebp - 8]
mov dword [ebp - 0x34], eax
mov eax, dword [ebp - 0xc]
mov dword [ebp - 0x38], eax
mov byte [ebp - 0x3d], 1
mov byte [ebp - 0x3e], 0
mov eax, dword [ebp - 4]
movzx eax, byte [eax + 0x8a]
mov edx, dword [0x5e1c58]
mov eax, dword [edx + eax*4]
mov eax, dword [eax]
mov dword [ebp - 0x54], eax
mov eax, dword [ebp - 0xc]
cmp eax, dword [ebp - 0x18]
jge 0x57f407
mov eax, dword [ebp - 0x18]
sub eax, dword [ebp - 0xc]
mov edi, eax
shl edi, 0x10
mov eax, edi
sub eax, 0x10000
mov dword [ebp - 0x3c], eax
movzx ebx, word [ebp - 0x4c]
mov eax, edi
cdq
idiv ebx
test edx, edx
jle 0x57f2ab
mov eax, edi
cdq
idiv ebx
inc eax
mov edi, eax
jmp 0x57f2b2
mov eax, edi
cdq
idiv ebx
mov edi, eax
mov edx, dword [ebp + 0x14]
inc edx
mov eax, dword [ebp - 0x34]
add eax, edi
call fcn.00520a84
mov dword [ebp - 0x34], eax
mov eax, edi
imul word [ebp - 0x4c]
mov word [ebp - 0x4a], ax
mov eax, dword [ebp - 0x3c]
cdq
idiv ebx
test edx, edx
jle 0x57f2e3
mov eax, dword [ebp - 0x3c]
cdq
idiv ebx
inc eax
mov dword [ebp - 0x3c], eax
jmp 0x57f2ec
mov eax, dword [ebp - 0x3c]
cdq
idiv ebx
mov dword [ebp - 0x3c], eax
sub edi, dword [ebp - 0x3c]
mov eax, dword [ebp - 0x34]
cmp eax, dword [ebp - 0x14]
jle 0x57f309
mov eax, dword [ebp - 0x14]
add eax, edi
cmp eax, dword [ebp - 0x34]
jl 0x57f664
mov byte [ebp - 0x3e], 1
mov eax, dword [ebp - 0x34]
cmp eax, dword [ebp - 0x10]
setge al
or al, byte [ebp - 0x3e]
je 0x57f407
mov eax, dword [ebp - 0x18]
mov dword [ebp - 0x38], eax
mov eax, dword [ebp - 0x34]
mov dword [ebp - 0x3c], eax
movzx esi, word [ebp - 0x4a]
sub si, word [ebp - 0x4c]
mov eax, dword [ebp - 0x34]
sub eax, edi
mov ecx, dword [ebp - 0x14]
mov edx, dword [ebp - 0x10]
call fcn.00573e2c
mov ebx, eax
cmp byte [ebp - 0x3e], 0
je 0x57f35e
movzx eax, word [ebp - 0x34]
sub ax, word [ebp - 0x14]
dec eax
imul word [ebp - 0x4c]
sub si, ax
mov eax, dword [ebp - 0x14]
inc eax
mov dword [ebp - 0x34], eax
cmp dword [ebp - 0x28], 0xffffffff
jne 0x57f367
neg dword [ebp - 0x38]
cmp dword [ebp - 0x24], 0xffffffff
jne 0x57f372
neg dword [ebp - 0x34]
neg ebx
xor eax, eax
push ebp
push 0x57f3da
push dword fs:[eax]
mov dword fs:[eax], esp
cmp ebx, dword [ebp - 0x34]
je 0x57f3c2
mov eax, dword [ebp - 0x24]
neg eax
add dword [ebp - 0x34], eax
mov eax, dword [ebp - 0x48]
mov eax, dword [eax]
mov edx, dword [ebp - 4]
imul dword [edx + 0x44]
mov edx, dword [ebp - 0x44]
add eax, dword [edx]
mov edx, dword [ebp - 4]
mov edx, dword [edx + 0x54]
lea edx, [edx + eax*4]
movzx eax, si
shr eax, 8
movzx ecx, byte [eax + 0x60f3d4]
mov eax, dword [ebp + 0xc]
call dword [ebp - 0x54]
sub si, word [ebp - 0x4c]
cmp ebx, dword [ebp - 0x34]
jne 0x57f385
xor eax, eax
pop edx
pop ecx
pop ecx
mov dword fs:[eax], edx
push 0x57f3e1
mov ebx, dword [0x5e1c68]
mov ebx, dword [ebx]
call ebx
ret
cmp byte [ebp - 0x3d], 0
je 0x57f455
mov eax, dword [ebp - 8]
cmp eax, dword [ebp - 0x10]
jge 0x57f455
mov edi, dword [ebp - 0x10]
sub edi, dword [ebp - 8]
movzx eax, word [ebp - 0x4c]
imul edi, eax
mov eax, edi
test eax, eax
jns 0x57f42d
add eax, 0xffff
sar eax, 0x10
add dword [ebp - 0x38], eax
mov word [ebp - 0x4a], di
mov eax, dword [ebp - 0x10]
mov dword [ebp - 0x34], eax
mov eax, dword [ebp - 0x38]
cmp eax, dword [ebp - 0x1c]
jg 0x57f664
mov eax, dword [ebp - 0x38]
cmp eax, dword [ebp - 0x1c]
jne 0x57f455
mov byte [ebp - 0x3e], 1
mov ebx, dword [ebp + 0x14]
xor eax, eax
mov byte [ebp - 0x3d], 0
mov edx, dword [ebp + 0x10]
cmp edx, dword [ebp - 0x1c]
jle 0x57f4d0
mov eax, dword [ebp - 0x1c]
sub eax, dword [ebp - 0xc]
mov edi, eax
shl edi, 0x10
movzx ecx, word [ebp - 0x4c]
mov eax, edi
cdq
idiv ecx
mov ebx, eax
add ebx, dword [ebp - 8]
mov eax, edi
cdq
idiv ecx
test edx, edx
jg 0x57f489
dec ebx
cmp ebx, dword [ebp - 0x14]
jge 0x57f4ce
add edi, 0x10000
mov dword [ebp - 0x3c], edi
mov eax, dword [ebp - 0x3c]
cdq
idiv ecx
test edx, edx
jle 0x57f4b0
mov eax, dword [ebp - 0x3c]
cdq
idiv ecx
add eax, dword [ebp - 8]
inc eax
mov dword [ebp - 0x3c], eax
jmp 0x57f4bc
mov eax, dword [ebp - 0x3c]
cdq
idiv ecx
add eax, dword [ebp - 8]
mov dword [ebp - 0x3c], eax
mov eax, dword [ebp - 0x3c]
cmp eax, dword [ebp - 0x14]
jle 0x57f4ca
mov eax, dword [ebp - 0x14]
mov dword [ebp - 0x3c], eax
mov byte [ebp - 0x3d], 1
mov al, 1
cmp ebx, dword [ebp - 0x14]
jle 0x57f4da
mov ebx, dword [ebp - 0x14]
mov al, 1
inc ebx
cmp dword [ebp - 0x28], 0xffffffff
jne 0x57f4e4
neg dword [ebp - 0x38]
cmp dword [ebp - 0x24], 0xffffffff
jne 0x57f4f2
neg dword [ebp - 0x34]
neg ebx
neg dword [ebp - 0x3c]
cmp byte [ebp - 0x3e], 0
jne 0x57f5d1
xor edx, edx
push ebp
push 0x57f5ca
push dword fs:[edx]
mov dword fs:[edx], esp
or al, byte [ebp + 8]
jne 0x57f523
cmp byte [ebp - 0x3d], 0
jne 0x57f523
cmp ebx, dword [ebp - 0x34]
jle 0x57f51d
dec ebx
jmp 0x57f523
cmp ebx, dword [ebp - 0x34]
jge 0x57f523
inc ebx
cmp ebx, dword [ebp - 0x34]
je 0x57f5b2
movzx eax, word [ebp - 0x4a]
shr eax, 8
mov byte [ebp - 0x4f], al
mov eax, dword [ebp - 0x48]
mov eax, dword [eax]
mov edx, dword [ebp - 4]
imul dword [edx + 0x44]
mov edx, dword [ebp - 0x44]
add eax, dword [edx]
mov edx, dword [ebp - 4]
mov edx, dword [edx + 0x54]
lea esi, [edx + eax*4]
movzx eax, byte [ebp - 0x4f]
xor al, 0xff
movzx eax, al
movzx ecx, byte [eax + 0x60f3d4]
mov edx, esi
mov eax, dword [ebp + 0xc]
call dword [ebp - 0x54]
mov eax, dword [ebp - 0x20]
add eax, eax
add eax, eax
add esi, eax
movzx eax, byte [ebp - 0x4f]
movzx ecx, byte [eax + 0x60f3d4]
mov edx, esi
mov eax, dword [ebp + 0xc]
call dword [ebp - 0x54]
movzx eax, word [ebp - 0x4a]
mov word [ebp - 0x4e], ax
movzx eax, word [ebp - 0x4c]
add word [ebp - 0x4a], ax
movzx eax, word [ebp - 0x4a]
cmp ax, word [ebp - 0x4e]
ja 0x57f5a3
mov eax, dword [ebp - 0x28]
add dword [ebp - 0x38], eax
mov eax, dword [ebp - 0x24]
add dword [ebp - 0x34], eax
cmp ebx, dword [ebp - 0x34]
jne 0x57f52c
xor eax, eax
pop edx
pop ecx
pop ecx
mov dword fs:[eax], edx
push 0x57f5d1
mov ebx, dword [0x5e1c68]
mov ebx, dword [ebx]
call ebx
ret
cmp byte [ebp - 0x3d], 0
je 0x57f654
xor eax, eax
push ebp
push 0x57f64d
push dword fs:[eax]
mov dword fs:[eax], esp
mov eax, dword [ebp - 0x34]
cmp eax, dword [ebp - 0x3c]
je 0x57f635
mov eax, dword [ebp - 0x48]
mov eax, dword [eax]
mov edx, dword [ebp - 4]
imul dword [edx + 0x44]
mov edx, dword [ebp - 0x44]
add eax, dword [edx]
mov edx, dword [ebp - 4]
mov edx, dword [edx + 0x54]
lea edx, [edx + eax*4]
movzx eax, word [ebp - 0x4a]
shr eax, 8
xor eax, 0xff
movzx ecx, byte [eax + 0x60f3d4]
mov eax, dword [ebp + 0xc]
call dword [ebp - 0x54]
movzx eax, word [ebp - 0x4c]
add word [ebp - 0x4a], ax
mov eax, dword [ebp - 0x24]
add dword [ebp - 0x34], eax
mov eax, dword [ebp - 0x34]
cmp eax, dword [ebp - 0x3c]
jne 0x57f5ed
xor eax, eax
pop edx
pop ecx
pop ecx
mov dword fs:[eax], edx
push 0x57f654
mov ebx, dword [0x5e1c68]
mov ebx, dword [ebx]
call ebx
ret
lea edx, [ebp - 0x64]
mov ecx, 0x40000002
mov eax, dword [ebp - 4]
mov ebx, dword [eax]
call dword [ebx + 0x64]
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 0x10