Function at 0x40b100
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push ebp
push ebx
push edi
push esi
sub esp, 0x10
mov esi, ecx
test edx, edx
je 0x40b115
push esi
call fcn.0040b400
jmp 0x40b11b
push esi
call fcn.0040b890
add esp, 4
lea ebp, [esi + 0x9272]
cmp ebp, dword [esi + 0x28]
jae 0x40b38a
mov ebx, 1
jmp 0x40b14e
mov ebx, dword [esp]
shr ebx, 1
cmp ebp, dword [esi + 0x28]
jae 0x40b390
cmp ebx, 1
jne 0x40b15e
movzx ebx, byte [ebp]
inc ebp
or ebx, 0x100
test bl, 1
jne 0x40b1e0
movzx edi, byte [ebp]
movzx edx, word [esi + edi*2 + 0x8852]
mov eax, dword [esi + 0x44]
mov ecx, eax
shl edx, cl
inc ebp
movzx ecx, byte [esi + edi + 0x8f12]
or edx, dword [esi + 0x48]
mov dword [esi + 0x48], edx
add ecx, eax
mov dword [esi + 0x44], ecx
cmp ecx, 8
jae 0x40b1ba
jmp 0x40b143
shr edx, 8
mov dword [esi + 0x48], edx
mov eax, ecx
xor eax, 8
and ecx, 0xfffffff7
add ecx, ecx
sub ecx, eax
mov dword [esi + 0x44], ecx
cmp ecx, 7
jbe 0x40b143
mov eax, dword [esi + 0x30]
cmp eax, dword [esi + 0x34]
jae 0x40b1a0
lea ecx, [eax + 1]
mov dword [esi + 0x30], ecx
mov byte [eax], dl
mov ecx, dword [esi + 0x44]
mov edx, dword [esi + 0x48]
jmp 0x40b1a0
movzx eax, byte [ebp]
mov edi, eax
movzx eax, word [eax + eax + 0x44302e]
movzx edx, word [esi + eax*2 + 0x8852]
mov ecx, dword [esi + 0x44]
shl edx, cl
movzx eax, byte [esi + eax + 0x8f12]
add eax, ecx
movzx ecx, byte [ebp + 1]
mov dword [esp + 4], ecx
or edx, dword [esi + 0x48]
mov dword [esp + 0xc], ebp
movzx ebp, byte [ebp + 2]
mov dword [esi + 0x48], edx
mov dword [esi + 0x44], eax
cmp eax, 8
jae 0x40b281
mov dword [esp], ebx
movzx ebx, byte [edi + 0x443288]
and edi, dword [ebx*4 + 0x443244]
mov ecx, eax
shl edi, cl
or edi, edx
mov edx, edi
mov dword [esi + 0x48], edi
add eax, ebx
mov dword [esi + 0x44], eax
cmp eax, 8
jae 0x40b2b1
mov dword [esp + 8], edx
mov edx, ebp
shl edx, 8
add edx, dword [esp + 4]
cmp edx, 0x200
jb 0x40b2d0
lea ecx, [ebp + 0x442fae]
lea ebp, [ebp + 0x443588]
jmp 0x40b2dc
shr edx, 8
mov dword [esi + 0x48], edx
add eax, 0xfffffff8
mov dword [esi + 0x44], eax
cmp eax, 7
jbe 0x40b223
mov ecx, dword [esi + 0x30]
cmp ecx, dword [esi + 0x34]
jae 0x40b270
lea eax, [ecx + 1]
mov dword [esi + 0x30], eax
mov byte [ecx], dl
mov eax, dword [esi + 0x44]
mov edx, dword [esi + 0x48]
jmp 0x40b270
shr edx, 8
mov dword [esi + 0x48], edx
add eax, 0xfffffff8
mov dword [esi + 0x44], eax
cmp eax, 7
jbe 0x40b249
mov ecx, dword [esi + 0x30]
cmp ecx, dword [esi + 0x34]
jae 0x40b2a0
lea eax, [ecx + 1]
mov dword [esi + 0x30], eax
mov byte [ecx], dl
mov eax, dword [esi + 0x44]
mov edx, dword [esi + 0x48]
jmp 0x40b2a0
lea ecx, [edx + 0x442dae]
lea ebp, [edx + 0x443388]
movzx edi, byte [ecx]
movzx ebx, word [esi + edi*2 + 0x8a92]
mov ecx, eax
shl ebx, cl
or ebx, dword [esp + 8]
movzx ecx, byte [esi + edi + 0x9032]
add ecx, eax
movzx eax, byte [ebp]
mov dword [esi + 0x48], ebx
mov dword [esi + 0x44], ecx
cmp ecx, 8
jae 0x40b371
mov ebp, dword [esp + 0xc]
add ebp, 3
and edx, dword [eax*4 + 0x443244]
shl edx, cl
or edx, ebx
mov dword [esi + 0x48], edx
add ecx, eax
mov dword [esi + 0x44], ecx
cmp ecx, 8
jb 0x40b140
mov ebx, dword [esp]
jmp 0x40b345
shr edx, 8
mov dword [esi + 0x48], edx
add ecx, 0xfffffff8
mov dword [esi + 0x44], ecx
cmp ecx, 7
jbe 0x40b143
mov eax, dword [esi + 0x30]
cmp eax, dword [esi + 0x34]
jae 0x40b330
lea ecx, [eax + 1]
mov dword [esi + 0x30], ecx
mov byte [eax], dl
mov ecx, dword [esi + 0x44]
mov edx, dword [esi + 0x48]
jmp 0x40b330
shr ebx, 8
mov dword [esi + 0x48], ebx
add ecx, 0xfffffff8
mov dword [esi + 0x44], ecx
cmp ecx, 7
jbe 0x40b308
mov ebp, dword [esi + 0x30]
cmp ebp, dword [esi + 0x34]
jae 0x40b360
lea ecx, [ebp + 1]
mov dword [esi + 0x30], ecx
mov byte [ebp], bl
mov ecx, dword [esi + 0x44]
mov ebx, dword [esi + 0x48]
jmp 0x40b360
mov ecx, dword [esi + 0x44]
mov edx, dword [esi + 0x48]
movzx eax, word [esi + 0x8a52]
movzx edi, byte [esi + 0x9012]
shl eax, cl
or eax, edx
mov dword [esi + 0x48], eax
add edi, ecx
mov dword [esi + 0x44], edi
cmp edi, 8
jae 0x40b3e1
mov ecx, dword [esi + 0x30]
xor eax, eax
cmp ecx, dword [esi + 0x34]
setb al
add esp, 0x10
pop esi
pop edi
pop ebx
pop ebp
ret
shr eax, 8
mov dword [esi + 0x48], eax
add edi, 0xfffffff8
mov dword [esi + 0x44], edi
cmp edi, 7
jbe 0x40b3af
mov ecx, dword [esi + 0x30]
cmp ecx, dword [esi + 0x34]
jae 0x40b3d0
lea edx, [ecx + 1]
mov dword [esi + 0x30], edx
mov byte [ecx], al
mov edi, dword [esi + 0x44]
mov eax, dword [esi + 0x48]
jmp 0x40b3d0