Function at 0x65ee90
Capabilities:
Encode data using xor

Disassembly:
jecxz 0x65b252
mov esp, ebp
mov bh, 0xbc
fchs
xchg byte [eax - 0x328eb08e], cl
mov eax, dword [esi]
mov edx, 0xcc35e83a
inc edi
loop 0x65b266
jns 0x65b22d
aas
xchg dword [edi + 3], eax
adc eax, 0x7dd128b8
invalid
aaa
fst qword [ecx - 0x57]
int1
dec eax
fistp dword [eax + 0x36dbf1b9]
adc ebp, dword [edx - 0x2f]
cwde
mov ecx, 0x1336dbf1
push 0xffffffffffffffd1
aam 0x44
inc edi
mov ch, 0xd5
aaa
jecxz 0x65b1f9
adc byte [0x63d771d1], dh
insd dword es:[edi], dx
jno 0x65b1ec
arpl word [ebp + 0x2f], bp
das
mov ah, 0x8b
cli
leave
or eax, 0xdddc942b
aad 0xdd
and ebp, dword [eax - 0x1b34a5a1]
shr dword [edx], 0x8b
or al, 0x71
and al, 0x8b
loopne 0x65b1d4
jno 0x65b253
mov esp, eax
mov byte [0x1b0d1d72], al
outsd dx, dword [esi]
leave
stosd dword es:[edi], eax
jb 0x65b251
or eax, 0xabc96f1b
mov dword [eax], edx
invalid
jge 0x65b217
jge 0x65b217
ret
mov byte [ecx - 0x74], bh
fnstenv [0x877435d5]
xor eax, 0x877435d5
mov ecx, dword [eax + 0x7f9be9d7]
xor ebp, dword [edi + 0x34]
outsd dx, dword [esi]
xor al, 0x75
invalid
jne 0x65b258
sbb eax, 0x2c8ba55b
pop edi
mov byte [0x4423c08f], al
and byte [ebx + 0x53], dl
sbb eax, 0xef15607d
xor eax, 0x2ed4147
sbb eax, 0x35c3db72
jne 0x65b264
push eax
cmp byte [ebp + 0x138e5f58], dl
loopne 0x65b213
rcl dword [edi - 0x39]
sbb eax, 0x7573355d
sbb eax, 0xcf39f25f
invalid
pushal
mov esi, 0x5f7015
lea edi, [esi - 0x1f6015]
lea eax, [edi + 0x258a58]
push dword [eax]
mov dword [eax], 0x39dbdda7
push eax
push edi
or ebp, 0xffffffff
jmp 0x65eec2
mov al, byte [esi]
inc esi
mov byte [edi], al
inc edi
add ebx, ebx
jne 0x65eec9
mov ebx, dword [esi]
sub esi, 0xfffffffc
adc ebx, ebx
jb 0x65eeb8
mov eax, 1
add ebx, ebx
jne 0x65eedb
mov ebx, dword [esi]
sub esi, 0xfffffffc
adc ebx, ebx
adc eax, eax
add ebx, ebx
jae 0x65eed0
jne 0x65eeec
mov ebx, dword [esi]
sub esi, 0xfffffffc
adc ebx, ebx
jae 0x65eed0
xor ecx, ecx
sub eax, 3
jb 0x65ef00
shl eax, 8
mov al, byte [esi]
inc esi
xor eax, 0xffffffff
je 0x65ef72
mov ebp, eax
add ebx, ebx
jne 0x65ef0b
mov ebx, dword [esi]
sub esi, 0xfffffffc
adc ebx, ebx
adc ecx, ecx
add ebx, ebx
jne 0x65ef18
mov ebx, dword [esi]
sub esi, 0xfffffffc
adc ebx, ebx
adc ecx, ecx
jne 0x65ef3c
inc ecx
add ebx, ebx
jne 0x65ef28
mov ebx, dword [esi]
sub esi, 0xfffffffc
adc ebx, ebx
adc ecx, ecx
add ebx, ebx
jae 0x65ef1d
jne 0x65ef39
mov ebx, dword [esi]
sub esi, 0xfffffffc
adc ebx, ebx
jae 0x65ef1d
add ecx, 2
cmp ebp, 0xfffff300
adc ecx, 1
lea edx, [edi + ebp]
cmp ebp, 0xfffffffc
jbe 0x65ef5c
mov al, byte [edx]
inc edx
mov byte [edi], al
inc edi
dec ecx
jne 0x65ef4d
jmp 0x65eebe
mov eax, dword [edx]
add edx, 4
mov dword [edi], eax
add edi, 4
sub ecx, 4
ja 0x65ef5c
add edi, ecx
jmp 0x65eebe
pop esi
pop edi
pop eax
mov dword [edi], eax
lea edi, [esi + 0x25c000]
mov eax, dword [edi]
or eax, eax
je 0x65efbf
mov ebx, dword [edi + 4]
lea eax, [eax + esi + 0x25f000]
add ebx, esi
push eax
add edi, 8
call dword [esi + 0x25f050]
xchg ebp, eax
mov al, byte [edi]
inc edi
or al, al
je 0x65ef7d
mov ecx, edi
push edi
dec eax
repne scasb al, byte es:[edi]
push ebp
call dword [esi + 0x25f058]
or eax, eax
je 0x65efb9
mov dword [ebx], eax
add ebx, 4
jmp 0x65ef9a
call dword [esi + 0x25f054]
mov ebp, dword [esi + 0x25f05c]
lea edi, [esi - 0x1000]
mov ebx, 0x1000
push eax
push esp
push 4
push ebx
push edi
call ebp
lea eax, [edi + 0x19f]
and byte [eax], 0x7f
and byte [eax + 0x28], 0x7f
pop eax
push eax
push esp
push eax
push ebx
push edi
call ebp
pop eax
lea ebx, [esi - 0x1000]
lea edi, [ebx + 0x25f01a]
push edi
xor eax, eax
stosb byte es:[edi], al
pop ecx
dec ecx
push eax
push 1
push ebx
call ecx
popal
lea eax, [esp - 0x80]
push 0
cmp esp, eax
jne 0x65f00b
sub esp, 0xffffff80
jmp 0x65b200