Function at 0x480640
Capabilities:
Encrypt data using rc4 ksa

Disassembly:
push ebp
mov ebp, esp
sub esp, 0xd0
mov eax, dword [0x59c388]
xor eax, ebp
mov dword [ebp - 4], eax
mov eax, dword [ebp + 0xc]
mov dword [ebp - 0xc8], eax
mov eax, dword [ebp + 0x10]
push ebx
mov ebx, dword [ebp + 8]
mov dword [ebp - 0xcc], eax
mov eax, dword [ebp + 0x14]
mov dword [ebp - 0xd0], eax
mov eax, dword [ebx]
mov dword [ebp - 0xc4], ebx
mov dword [eax + 8], 0
mov eax, dword [ebp + 0x18]
mov dword [ebp - 0xa4], eax
cmp eax, 4
ja 0x480fce
push edi
push ebx
call fcn.00484630
mov edi, dword [ebx]
add esp, 4
test eax, eax
jne 0x4806c2
push eax
push dword [edi + 8]
push ebx
call fcn.00484a40
add esp, 0xc
xor eax, eax
pop edi
pop ebx
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.004f3d68
mov esp, ebp
pop ebp
ret
mov eax, dword [ebp - 0xa4]
mov edx, dword [edi + 8]
mov dword [ebp - 0xac], edx
test eax, eax
jne 0x4806e8
cmp edx, 3
setge al
lea eax, [eax*2 + 1]
mov dword [ebp - 0xa4], eax
push esi
cmp edx, 3
jne 0x480715
cmp dword [ebx + 0x47ec], edx
je 0x480708
cmp dword [ebx + 0x47e8], 0
jne 0x480715
cmp dword [ebx + 0x47e4], 0
jne 0x480715
mov ecx, 1
mov dword [ebp - 0xb8], ecx
jmp 0x480722
xor ecx, ecx
mov dword [ebp - 0xb8], ecx
cmp edx, 3
jne 0x480737
cmp eax, 3
jge 0x480737
test ecx, ecx
jne 0x480737
mov dword [ebp - 0xac], 1
jmp 0x480741
mov ecx, edi
test edx, edx
jle 0x48084c
lea esi, [ebx + 0x46a0]
mov dword [ebp - 0x98], 0
lea edi, [ebp - 0x88]
mov dword [ebp - 0x9c], esi
nop dword [eax]
mov eax, dword [ebx]
mov eax, dword [eax]
add eax, 3
push eax
call fcn.00519125
add esp, 4
mov dword [esi + 0x34], eax
test eax, eax
je 0x4808e0
mov eax, dword [ebx + 0x4684]
cdq
idiv dword [esi]
mov ecx, dword [ebp - 0x9c]
mov esi, eax
mov dword [edi + 0x10], 0
mov eax, dword [ebx + 0x4688]
cdq
idiv dword [ecx + 4]
xor edx, edx
mov dword [edi], esi
mov ecx, eax
mov dword [ebp - 0xa0], eax
sar ecx, 1
mov dword [edi + 4], eax
mov dword [edi + 0xc], ecx
mov ecx, dword [ebx]
mov eax, dword [ecx]
dec eax
add eax, esi
div esi
mov dword [edi + 8], eax
mov eax, dword [ebp - 0x9c]
mov eax, dword [eax + 0x28]
mov dword [edi - 4], eax
mov dword [edi - 8], eax
mov eax, dword [ebp - 0xa0]
cmp esi, 1
jne 0x4807f3
cmp eax, esi
jne 0x4807e2
mov eax, 0x480ff0
jmp 0x48081a
mov esi, 1
cmp eax, 2
jne 0x480804
mov eax, 0x48d8c0
jmp 0x48081a
cmp esi, 2
jne 0x480815
cmp eax, 1
jne 0x480804
mov eax, 0x48d5b0
jmp 0x48081a
cmp esi, 2
jne 0x480815
cmp eax, esi
jne 0x480815
mov eax, dword [ebx + 0x4814]
jmp 0x48081a
mov eax, 0x48d570
mov esi, dword [ebp - 0x9c]
mov dword [edi - 0xc], eax
add esi, 0x48
mov eax, dword [ebp - 0x98]
add edi, 0x20
inc eax
mov dword [ebp - 0x9c], esi
mov dword [ebp - 0x98], eax
cmp eax, dword [ebp - 0xac]
jl 0x480760
mov edi, dword [ebx]
mov ecx, edi
mov eax, dword [edi + 4]
mov edx, ecx
mov esi, dword [ebp - 0xa4]
mov edi, dword [edi]
mov dword [ebp - 0xa0], eax
test esi, esi
js 0x4808ef
test edi, edi
js 0x4808ef
je 0x480883
mov eax, accept
cdq
idiv edi
cmp esi, eax
jg 0x4808f1
mov eax, dword [ebp - 0xa0]
mov edx, edi
mov dword [ebp - 0x98], ecx
imul edx, esi
mov dword [ebp - 0xb4], edx
test edx, edx
js 0x4808e9
mov edx, ecx
test eax, eax
js 0x4808ef
je 0x4808ba
mov eax, accept
cdq
idiv dword [ebp - 0xa0]
cmp dword [ebp - 0xb4], eax
jg 0x4808f1
mov eax, dword [ebp - 0xa0]
imul edi, eax
imul edi, esi
cmp edi, 0x7ffffffe
jg 0x4808f1
lea eax, [edi + 1]
push eax
call fcn.00519125
mov ecx, dword [ebx]
add esp, 4
mov esi, eax
mov dword [ebp - 0xa0], eax
jmp 0x4808f9
mov eax, dword [ebx]
push 0
push dword [eax + 8]
jmp 0x480901
mov edx, dword [ebp - 0x98]
mov ecx, edx
xor esi, esi
mov dword [ebp - 0xa0], esi
test esi, esi
jne 0x480927
push esi
push dword [ecx + 8]
push ebx
call fcn.00484a40
add esp, 0xc
mov dword [0x5a0830], 0x54f7f4
xor eax, eax
pop esi
pop edi
pop ebx
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.004f3d68
mov esp, ebp
pop ebp
ret
xor eax, eax
mov dword [ebp - 0xb4], eax
cmp dword [ecx + 4], eax
jbe 0x480f76
mov edi, dword [ebp - 0x14]
nop dword [eax + eax]
mov esi, dword [ecx]
mov edx, dword [ebp - 0xa4]
imul esi, eax
mov dword [ebp - 0x98], 0
imul esi, edx
add esi, dword [ebp - 0xa0]
cmp dword [ebp - 0xac], 0
mov dword [ebp - 0xb0], esi
jle 0x480a0e
mov esi, dword [ebp - 0xac]
lea eax, [ebx + 0x46bc]
mov dword [ebp - 0x9c], eax
lea edi, [ebp - 0x7c]
mov ebx, eax
mov eax, dword [edi - 8]
sar eax, 1
cmp dword [edi], eax
jl 0x480996
mov edx, dword [edi - 0x14]
jmp 0x480999
mov edx, dword [edi - 0x10]
jl 0x4809a0
mov eax, dword [edi - 0x10]
jmp 0x4809a3
mov eax, dword [edi - 0x14]
push dword [edi - 0xc]
push dword [edi - 4]
push edx
push eax
push dword [ebx + 0x18]
call dword [edi - 0x18]
mov edx, dword [ebp - 0x98]
add esp, 0x14
mov dword [ebp + edx*4 - 0x14], eax
mov eax, dword [edi]
inc eax
mov dword [edi], eax
cmp eax, dword [edi - 8]
jl 0x4809e6
inc dword [edi + 4]
mov eax, dword [edi + 4]
mov ecx, dword [edi - 0x10]
mov dword [edi], 0
mov dword [edi - 0x14], ecx
cmp eax, dword [ebx]
jge 0x4809e6
mov eax, dword [ebx + 4]
add eax, ecx
mov dword [edi - 0x10], eax
inc edx
add edi, 0x20
add ebx, 0x48
mov dword [ebp - 0x98], edx
cmp edx, esi
jl 0x480988
mov ebx, dword [ebp - 0xc4]
mov esi, dword [ebp - 0xb0]
mov edi, dword [ebp - 0x14]
mov edx, dword [ebp - 0xa4]
mov ecx, dword [ebx]
cmp edx, 3
jl 0x480cb3
mov eax, dword [ecx + 8]
cmp eax, 3
jne 0x480ab8
cmp dword [ebp - 0xb8], 0
je 0x480a9b
cmp dword [ecx], 0
mov dword [ebp - 0xb0], 0
jbe 0x480cac
mov ecx, dword [ebp - 0x10]
mov eax, edi
mov edi, dword [ebp - 0xc]
sub eax, ecx
add esi, 2
mov dword [ebp - 0x9c], eax
sub edi, ecx
mov dword [ebp - 0x98], edi
mov edi, dword [ebp - 0xb0]
movzx eax, byte [eax + ecx]
lea ecx, [ecx + 1]
mov byte [esi - 2], al
inc edi
movzx eax, byte [ecx - 1]
mov byte [esi - 1], al
mov eax, dword [ebp - 0x98]
movzx eax, byte [eax + ecx - 1]
mov byte [esi], al
mov byte [esi + 1], 0xff
add esi, edx
mov eax, dword [ebx]
cmp edi, dword [eax]
mov eax, dword [ebp - 0x9c]
jb 0x480a60
mov edi, dword [ebp - 0x14]
mov ecx, dword [ebx]
jmp 0x480f5a
mov eax, dword [ebx + 0x4810]
push edx
push dword [ecx]
push dword [ebp - 0xc]
push dword [ebp - 0x10]
push edi
push esi
call eax
mov ecx, dword [ebx]
add esp, 0x18
jmp 0x480f5a
cmp eax, 4
jne 0x480c89
mov eax, dword [ebx + 0x47e8]
test eax, eax
jne 0x480bb9
mov dword [ebp - 0x98], eax
cmp dword [ecx], eax
jbe 0x480cac
mov edx, dword [ebp - 0x10]
add esi, 2
mov dword [ebp - 0xb0], esi
mov eax, edi
mov esi, dword [ebp - 8]
mov ecx, esi
mov edi, dword [ebp - 0xb0]
sub edx, esi
mov dword [ebp - 0xbc], edx
sub eax, esi
mov edx, dword [ebp - 0xc]
sub edx, esi
mov dword [ebp - 0x9c], esi
mov esi, dword [ebp - 0xa4]
mov dword [ebp - 0xa8], eax
mov dword [ebp - 0xc0], edx
nop dword [eax]
movzx edx, byte [ecx]
movzx ecx, byte [eax + ecx]
imul ecx, edx
sub ecx, 0xffffff80
mov eax, ecx
shr eax, 8
add eax, ecx
mov ecx, dword [ebp - 0xbc]
shr eax, 8
mov byte [edi - 2], al
mov eax, dword [ebp - 0x9c]
movzx ecx, byte [ecx + eax]
imul ecx, edx
sub ecx, 0xffffff80
mov eax, ecx
shr eax, 8
add eax, ecx
mov ecx, dword [ebp - 0xc0]
shr eax, 8
mov byte [edi - 1], al
mov eax, dword [ebp - 0x9c]
movzx ecx, byte [ecx + eax]
imul ecx, edx
mov edx, dword [ebp - 0x98]
mov byte [edi + 1], 0xff
inc edx
mov dword [ebp - 0x98], edx
sub ecx, 0xffffff80
mov eax, ecx
shr eax, 8
add eax, ecx
mov ecx, dword [ebp - 0x9c]
shr eax, 8
inc ecx
mov byte [edi], al
add edi, esi
mov eax, dword [ebx]
mov dword [ebp - 0x9c], ecx
cmp edx, dword [eax]
mov eax, dword [ebp - 0xa8]
jb 0x480b20
mov edi, dword [ebp - 0x14]
mov ecx, dword [ebx]
jmp 0x480f5a
mov ecx, dword [ecx]
mov edi, dword [ebx + 0x4810]
mov dword [ebp - 0x98], edi
mov edi, dword [ebp - 0x14]
push edx
push ecx
push dword [ebp - 0xc]
push dword [ebp - 0x10]
push edi
push esi
cmp eax, 2
jne 0x480c79
call dword [ebp - 0x98]
mov eax, dword [ebx]
xor ecx, ecx
add esp, 0x18
mov dword [ebp - 0x98], ecx
cmp dword [eax], ecx
jbe 0x480cac
mov edi, dword [ebp - 0xa4]
add esi, 2
mov eax, dword [ebp - 8]
movzx edx, byte [eax + ecx]
movzx eax, byte [esi - 2]
not al
movzx ecx, al
imul ecx, edx
sub ecx, 0xffffff80
mov eax, ecx
shr eax, 8
add eax, ecx
shr eax, 8
mov byte [esi - 2], al
movzx eax, byte [esi - 1]
not al
movzx ecx, al
imul ecx, edx
sub ecx, 0xffffff80
mov eax, ecx
shr eax, 8
add eax, ecx
shr eax, 8
mov byte [esi - 1], al
movzx eax, byte [esi]
not al
movzx ecx, al
imul ecx, edx
sub ecx, 0xffffff80
mov eax, ecx
shr eax, 8
add eax, ecx
mov ecx, dword [ebp - 0x98]
shr eax, 8
inc ecx
mov byte [esi], al
add esi, edi
mov eax, dword [ebx]
mov dword [ebp - 0x98], ecx
cmp ecx, dword [eax]
jb 0x480c01
mov edi, dword [ebp - 0x14]
mov ecx, eax
jmp 0x480f5a
call dword [ebp - 0x98]
mov ecx, dword [ebx]
add esp, 0x18
jmp 0x480f5a
xor edx, edx
cmp dword [ecx], edx
jbe 0x480cac
inc esi
mov al, byte [edi + edx]
inc edx
mov byte [esi + 1], al
mov byte [esi], al
mov byte [esi - 1], al
mov byte [esi + 2], 0xff
mov eax, dword [ebx]
add esi, dword [ebp - 0xa4]
cmp edx, dword [eax]
jb 0x480c90
mov ecx, dword [ebx]
jmp 0x480f5a
cmp dword [ebp - 0xb8], 0
je 0x480dab
mov eax, dword [ecx]
mov dword [ebp - 0x98], 0
cmp edx, 1
jne 0x480d37
test eax, eax
je 0x480f5a
mov eax, dword [ebp - 0x14]
mov edx, eax
mov ecx, dword [ebp - 0xc]
mov edi, dword [ebp - 0x10]
sub ecx, eax
sub edi, eax
mov dword [ebp - 0xa8], ecx
sub esi, eax
jmp 0x480cf8
mov ecx, dword [ebp - 0xa8]
movzx eax, byte [ecx + edx]
lea edx, [edx + 1]
imul ecx, eax, 0x1d
movzx eax, byte [edi + edx - 1]
imul eax, eax, 0x96
add ecx, eax
movzx eax, byte [edx - 1]
imul eax, eax, 0x4d
add ecx, eax
mov eax, dword [ebp - 0x98]
shr ecx, 8
inc eax
mov byte [esi + edx - 1], cl
mov ecx, dword [ebx]
mov dword [ebp - 0x98], eax
cmp eax, dword [ecx]
jb 0x480cf2
jmp 0x480f57
test eax, eax
je 0x480f5a
mov eax, dword [ebp - 0x14]
mov edx, eax
mov edi, dword [ebp - 0x10]
mov ecx, dword [ebp - 0xc]
sub edi, eax
sub ecx, eax
mov dword [ebp - 0xa8], ecx
jmp 0x480d66
mov ecx, dword [ebp - 0xa8]
movzx eax, byte [edx + ecx]
lea edx, [edx + 1]
imul ecx, eax, 0x1d
lea esi, [esi + 2]
movzx eax, byte [edx + edi - 1]
imul eax, eax, 0x96
add ecx, eax
movzx eax, byte [edx - 1]
imul eax, eax, 0x4d
mov byte [esi - 1], 0xff
add ecx, eax
mov eax, dword [ebp - 0x98]
shr ecx, 8
inc eax
mov byte [esi - 2], cl
mov ecx, dword [ebx]
mov dword [ebp - 0x98], eax
cmp eax, dword [ecx]
jb 0x480d60
jmp 0x480f57
cmp dword [ecx + 8], 4
jne 0x480f08
mov eax, dword [ebx + 0x47e8]
test eax, eax
jne 0x480ea8
mov dword [ebp - 0x98], eax
cmp dword [ecx], eax
jbe 0x480f5a
mov ecx, dword [ebp - 8]
mov edx, ecx
mov eax, dword [ebp - 0x10]
mov edi, dword [ebp - 0x14]
sub eax, ecx
mov dword [ebp - 0xa8], eax
sub edi, ecx
mov eax, dword [ebp - 0xc]
sub eax, ecx
mov dword [ebp - 0x9c], ecx
mov dword [ebp - 0xbc], edi
mov dword [ebp - 0xc0], eax
nop dword [eax]
movzx eax, byte [edx]
mov ecx, dword [ebp - 0xa8]
movzx edi, byte [edx + edi]
mov ebx, dword [ebp - 0xc0]
imul edi, eax
movzx ecx, byte [edx + ecx]
imul ecx, eax
movzx edx, byte [edx + ebx]
imul edx, eax
mov ebx, dword [ebp - 0xc4]
sub edi, 0xffffff80
mov byte [esi + 1], 0xff
sub ecx, 0xffffff80
mov eax, ecx
shr eax, 8
sub edx, 0xffffff80
add eax, ecx
shr eax, 8
movzx eax, al
imul ecx, eax, 0x96
mov eax, edx
shr eax, 8
add eax, edx
mov edx, dword [ebp - 0x9c]
shr eax, 8
inc edx
movzx eax, al
imul eax, eax, 0x1d
mov dword [ebp - 0x9c], edx
add ecx, eax
mov eax, edi
shr eax, 8
add eax, edi
mov edi, dword [ebp - 0xbc]
shr eax, 8
movzx eax, al
imul eax, eax, 0x4d
add ecx, eax
mov eax, dword [ebp - 0x98]
shr ecx, 8
inc eax
mov byte [esi], cl
mov ecx, dword [ebx]
add esi, dword [ebp - 0xa4]
mov dword [ebp - 0x98], eax
cmp eax, dword [ecx]
jb 0x480e00
jmp 0x480f57
cmp eax, 2
jne 0x480f08
cmp dword [ecx], 0
mov dword [ebp - 0x98], 0
jbe 0x480f5a
mov edi, dword [ebp - 0x14]
mov edx, dword [ebp - 8]
sub edi, edx
mov al, byte [edx + edi]
lea edx, [edx + 1]
not al
movzx ecx, al
movzx eax, byte [edx - 1]
imul ecx, eax
mov byte [esi + 1], 0xff
sub ecx, 0xffffff80
mov eax, ecx
shr eax, 8
add eax, ecx
shr eax, 8
mov byte [esi], al
mov eax, dword [ebp - 0x98]
mov ecx, dword [ebx]
inc eax
add esi, dword [ebp - 0xa4]
mov dword [ebp - 0x98], eax
cmp eax, dword [ecx]
jb 0x480ec8
jmp 0x480f57
mov eax, dword [ecx]
cmp edx, 1
jne 0x480f32
xor edx, edx
test eax, eax
je 0x480f5a
mov edi, dword [ebp - 0x14]
sub edi, esi
nop word [eax + eax]
mov al, byte [edi + esi]
lea esi, [esi + 1]
mov byte [esi - 1], al
inc edx
mov ecx, dword [ebx]
cmp edx, dword [ecx]
jb 0x480f20
jmp 0x480f57
xor edx, edx
test eax, eax
je 0x480f5a
nop dword [eax + eax]
mov eax, dword [ebp - 0x14]
lea esi, [esi + 2]
mov al, byte [eax + edx]
inc edx
mov byte [esi - 2], al
mov byte [esi - 1], 0xff
mov ecx, dword [ebx]
cmp edx, dword [ecx]
jb 0x480f40
mov edi, dword [ebp - 0x14]
mov eax, dword [ebp - 0xb4]
inc eax
mov dword [ebp - 0xb4], eax
cmp eax, dword [ecx + 4]
jb 0x480940
mov esi, dword [ebp - 0xa0]
push 0
push dword [ecx + 8]
push ebx
call fcn.00484a40
mov eax, dword [ebx]
add esp, 0xc
mov ecx, dword [ebp - 0xc8]
mov edx, dword [ebp - 0xd0]
mov eax, dword [eax]
mov dword [ecx], eax
mov eax, dword [ebx]
mov ecx, dword [ebp - 0xcc]
mov eax, dword [eax + 4]
mov dword [ecx], eax
test edx, edx
je 0x480fbb
mov eax, dword [ebx]
xor ecx, ecx
cmp dword [eax + 8], 3
setge cl
lea ecx, [ecx*2 + 1]
mov dword [edx], ecx
mov eax, esi
pop esi
pop edi
pop ebx
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.004f3d68
mov esp, ebp
pop ebp
ret
mov ecx, dword [ebp - 4]
xor eax, eax
xor ecx, ebp
mov dword [0x5a0830], 0x54f9a4
pop ebx
call fcn.004f3d68
mov esp, ebp
pop ebp
ret