Function at 0x6440ba80
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push ebp
push edi
mov edi, edx
push esi
push ebx
sub esp, 0x13c
mov dword [esp + 0x14], edx
mov edx, dword [esp + 0x150]
mov dword [esp + 0x18], ecx
mov dword [esp + 0x30], edx
cmp eax, edi
jae 0x6440bdc8
mov edi, 1
lea esi, [esi]
movzx ebx, byte [eax]
lea ebp, [eax + 1]
lea ecx, [ebx - 3]
mov edx, ebx
cmp cl, 0xee
ja case.0x6440bac7.1
movzx ecx, cl
jmp dword [ecx*4 + 0x644ec6d4]
xor esi, esi
xor ecx, ecx
movzx edx, byte [ebp]
add ebp, 1
mov eax, edx
and eax, 0x7f
shl eax, cl
add ecx, 7
or esi, eax
test dl, dl
js 0x6440bad4
cmp ecx, 0x1f
ja 0x6440bb00
and edx, 0x40
je 0x6440bb00
mov eax, 1
shl eax, cl
neg eax
or esi, eax
sub ebx, 0x70
cmp ebx, 0x11
jg 0x644dff87
mov ecx, dword [esp + 0x18]
mov eax, dword [ecx + ebx*4]
test byte [ecx + 0x63], 0x40
je 0x6440bdb0
cmp byte [ecx + ebx + 0x6c], 0
je 0x6440bdb0
mov ebx, eax
add ebx, esi
mov eax, ebp
mov esi, edi
jmp 0x6440bb40
mov ebx, dword [eax + 1]
mov esi, edi
add eax, 5
cmp esi, 0x3f
jg 0x644dff87
mov dword [esp + esi*4 + 0x30], ebx
lea edi, [esi + 1]
cmp dword [esp + 0x14], eax
ja 0x6440bab0
test edi, edi
je 0x644dff87
mov eax, dword [esp + edi*4 + 0x2c]
add esp, 0x13c
pop ebx
pop esi
pop edi
pop ebp
ret
mov ebx, dword [eax + 1]
mov esi, edi
add eax, 9
jmp 0x6440bb40
lea edx, [ebx - 0x50]
cmp edx, 0x11
jg 0x644dff87
mov eax, dword [esp + 0x18]
mov ebx, dword [eax + edx*4]
test byte [eax + 0x63], 0x40
je 0x6440bba0
cmp byte [eax + edx + 0x6c], 0
jne 0x6440bbaf
cmp byte [edx + 0x6452e090], 4
jne 0x644dff87
mov ebx, dword [ebx]
mov esi, edi
mov eax, ebp
jmp 0x6440bb40
sub ebx, 0x30
mov esi, edi
mov eax, ebp
jmp 0x6440bb40
cmp edi, 1
jle 0x644dff87
lea esi, [edi - 2]
sub edx, 0x1a
mov ecx, dword [esp + edi*4 + 0x2c]
mov ebx, dword [esp + esi*4 + 0x30]
cmp dl, 0x14
ja case.0x6440bac7.1
movzx edx, dl
jmp dword [edx*4 + 0x644eca90]
test edi, edi
je 0x644dff87
lea esi, [edi - 1]
mov ebx, dword [esp + esi*4 + 0x30]
cmp dl, 0x23
ja 0x6440bd6f
sub edx, 6
cmp dl, 0x1d
ja case.0x6440bac7.1
movzx edx, dl
jmp dword [edx*4 + 0x644ecae4]
movsx edx, word [eax + 1]
lea eax, [eax + edx + 3]
jmp 0x6440bb50
test edi, edi
je 0x644dff87
sub edi, 1
lea edx, [eax + 3]
mov ecx, dword [esp + edi*4 + 0x30]
test ecx, ecx
je 0x6440bda0
movsx eax, word [eax + 1]
add eax, edx
jmp 0x6440bb50
cmp edi, 1
jle 0x644dff87
lea eax, [edi - 2]
lea edx, [edi - 1]
mov ebx, dword [esp + eax*4 + 0x30]
mov ecx, dword [esp + edx*4 + 0x30]
mov dword [esp + edx*4 + 0x30], ebx
mov dword [esp + eax*4 + 0x30], ecx
mov eax, ebp
jmp 0x6440bb50
movzx ecx, byte [eax + 1]
lea edx, [eax + 2]
lea eax, [edi - 1]
cmp ecx, eax
jge 0x644dff87
sub eax, ecx
mov esi, edi
mov ebx, dword [esp + eax*4 + 0x30]
mov eax, edx
jmp 0x6440bb40
cmp edi, 1
jle 0x644dff87
mov ebx, dword [esp + edi*4 + 0x28]
mov esi, edi
mov eax, ebp
jmp 0x6440bb40
test edi, edi
je 0x644dff87
sub edi, 1
mov eax, ebp
jmp 0x6440bb50
test edi, edi
je 0x644dff87
mov ebx, dword [esp + edi*4 + 0x2c]
mov esi, edi
mov eax, ebp
jmp 0x6440bb40
movsx ebx, word [eax + 1]
mov esi, edi
add eax, 3
jmp 0x6440bb40
movzx ebx, word [eax + 1]
mov esi, edi
add eax, 3
jmp 0x6440bb40
movsx ebx, byte [eax + 1]
mov esi, edi
add eax, 2
jmp 0x6440bb40
cmp edi, 2
jle 0x644dff87
lea ecx, [edi - 1]
lea edx, [edi - 2]
mov ebx, dword [esp + ecx*4 + 0x30]
lea eax, [edi - 3]
mov esi, dword [esp + eax*4 + 0x30]
mov dword [esp + 0x1c], ebx
mov ebx, dword [esp + edx*4 + 0x30]
mov dword [esp + ecx*4 + 0x30], ebx
mov ebx, dword [esp + 0x1c]
mov dword [esp + edx*4 + 0x30], esi
mov dword [esp + eax*4 + 0x30], ebx
mov eax, ebp
jmp 0x6440bb50
movzx edx, byte [eax + 1]
lea ecx, [eax + 2]
lea eax, [esp + 0x2c]
mov esi, edi
mov dword [esp], eax
mov eax, dword [esp + 0x18]
call fcn.6440b8e0
mov ebx, dword [esp + 0x2c]
jmp 0x6440bb40
movzx ebx, byte [eax + 1]
mov esi, edi
add eax, 2
jmp 0x6440bb40
cmp dl, 0x94
jne 0x6440c066
lea edx, [eax + 2]
movzx eax, byte [eax + 1]
cmp al, 4
je 0x6440bff2
ja 0x6440c05d
cmp al, 1
jne 0x6440c04f
movzx ebx, byte [ebx]
mov eax, edx
jmp 0x6440bb40
mov eax, edx
jmp 0x6440bb50
cmp byte [ebx + 0x6452e090], 4
jne 0x644dff87
mov ebx, dword [eax]
jmp 0x6440bb2a
add esp, 0x13c
mov eax, edx
pop ebx
pop esi
pop edi
pop ebp
ret
xor ebx, ebx
mov eax, ebp
xor ecx, ecx
mov esi, ebx
lea esi, [esi]
movzx ebx, byte [eax]
add eax, 1
mov edx, ebx
and edx, 0x7f
shl edx, cl
add ecx, 7
or esi, edx
test bl, bl
js 0x6440bde0
mov ebx, esi
mov esi, edi
jmp 0x6440bb40
mov eax, ebp
xor esi, esi
xor ecx, ecx
lea esi, [esi]
movzx ebx, byte [eax]
add eax, 1
mov edx, ebx
and edx, 0x7f
shl edx, cl
add ecx, 7
or esi, edx
test bl, bl
js 0x6440be08
xor ebp, ebp
xor ecx, ecx
lea esi, [esi]
movzx ebx, byte [eax]
add eax, 1
mov edx, ebx
and edx, 0x7f
shl edx, cl
add ecx, 7
or ebp, edx
test bl, bl
js 0x6440be28
cmp ecx, 0x1f
ja 0x6440be53
and ebx, 0x40
je 0x6440be53
mov edx, 1
shl edx, cl
neg edx
or ebp, edx
cmp esi, 0x11
jg 0x644dff87
mov ecx, dword [esp + 0x18]
mov ebx, dword [ecx + esi*4]
test byte [ecx + 0x63], 0x40
je 0x6440be70
cmp byte [ecx + esi + 0x6c], 0
jne 0x6440be7f
cmp byte [esi + 0x6452e090], 4
jne 0x644dff87
mov ebx, dword [ebx]
add ebx, ebp
mov esi, edi
jmp 0x6440bb40
mov eax, ebp
jmp 0x6440bb50
mov eax, ebp
xor ebx, ebx
xor ecx, ecx
lea esi, [esi]
movzx edx, byte [eax]
add eax, 1
mov esi, edx
and esi, 0x7f
shl esi, cl
add ecx, 7
or ebx, esi
test dl, dl
js 0x6440be98
mov esi, edi
cmp ecx, 0x1f
ja 0x6440bb40
and edx, 0x40
je 0x6440bb40
mov edx, 1
shl edx, cl
neg edx
or ebx, edx
jmp 0x6440bb40
mov eax, ebp
xor esi, esi
xor ecx, ecx
lea esi, [esi]
nop
movzx ebx, byte [eax]
add eax, 1
mov edx, ebx
and edx, 0x7f
shl edx, cl
add ecx, 7
or esi, edx
test bl, bl
js 0x6440bee0
cmp esi, 0x11
jg 0x644dff87
mov ecx, dword [esp + 0x18]
mov ebx, dword [ecx + esi*4]
test byte [ecx + 0x63], 0x40
je 0x6440bf13
cmp byte [ecx + esi + 0x6c], 0
jne 0x6440bf22
cmp byte [esi + 0x6452e090], 4
jne 0x644dff87
mov ebx, dword [ebx]
mov esi, edi
jmp 0x6440bb40
cmp ebx, ecx
mov eax, ebp
setle bl
movzx ebx, bl
jmp 0x6440bb40
cmp ebx, ecx
mov eax, ebp
setl bl
movzx ebx, bl
jmp 0x6440bb40
add ebx, ecx
mov eax, ebp
jmp 0x6440bb40
shl ebx, cl
mov eax, ebp
jmp 0x6440bb40
shr ebx, cl
mov eax, ebp
jmp 0x6440bb40
sar ebx, cl
mov eax, ebp
jmp 0x6440bb40
xor ebx, ecx
mov eax, ebp
jmp 0x6440bb40
cmp ebx, ecx
mov eax, ebp
sete bl
movzx ebx, bl
jmp 0x6440bb40
cmp ebx, ecx
mov eax, ebp
setge bl
movzx ebx, bl
jmp 0x6440bb40
cmp ebx, ecx
mov eax, ebp
setg bl
movzx ebx, bl
jmp 0x6440bb40
and ebx, ecx
mov eax, ebp
jmp 0x6440bb40
mov eax, ebx
cdq
idiv ecx
mov ebx, eax
mov eax, ebp
jmp 0x6440bb40
sub ebx, ecx
mov eax, ebp
jmp 0x6440bb40
mov eax, ebx
xor edx, edx
div ecx
mov eax, ebp
mov ebx, edx
jmp 0x6440bb40
imul ebx, ecx
mov eax, ebp
jmp 0x6440bb40
or ebx, ecx
mov eax, ebp
jmp 0x6440bb40
cmp ebx, ecx
mov eax, ebp
setne bl
movzx ebx, bl
jmp 0x6440bb40
mov ebx, dword [ebx]
mov eax, edx
jmp 0x6440bb40
not ebx
mov eax, ebp
jmp 0x6440bb40
neg ebx
mov eax, ebp
jmp 0x6440bb40
mov edx, ebx
mov eax, ebp
sar edx, 0x1f
xor ebx, edx
sub ebx, edx
jmp 0x6440bb40
mov ebx, dword [ebx]
mov eax, ebp
jmp 0x6440bb40
mov eax, ebp
xor ecx, ecx
xor ebp, ebp
mov edi, ebx
nop
movzx ebx, byte [eax]
add eax, 1
mov edx, ebx
and edx, 0x7f
shl edx, cl
add ecx, 7
or ebp, edx
test bl, bl
js 0x6440c030
mov ebx, edi
add ebx, ebp
jmp 0x6440bb40
cmp al, 2
jne 0x6440c06b
movzx ebx, word [ebx]
mov eax, edx
jmp 0x6440bb40
cmp al, 8
je 0x6440bff2
jmp case.0x6440bac7.1
jmp case.0x6440bac7.1
jmp case.0x6440bac7.1