Function at 0x4b7c10
Capabilities:
Encode data using xor
Hash data with crc32
Read file on windows

Disassembly:
push ebp
mov ebp, esp
add esp, 0xfffff4e4
push esi
push edi
mov dword [ebp - 0x14], 0xffffffff
mov word [ebp - 0x16], 0
mov word [ebp - 0x18], 0xffff
test byte [ebp + 0xc], 0x10
je 0x4b7c3a
test byte [ebp + 0xc], 0xf
jne 0x4b7c41
xor eax, eax
jmp 0x4b8245
mov edx, dword [0x6f6934]
test edx, edx
je 0x4b7c5e
push dword [ebp + 0xc]
push dword [ebp + 8]
call fcn.004b6b44
add esp, 8
jmp 0x4b8245
push 0
push 0
push 3
push 0
push 3
push SysReAllocStringLen
push dword [ebp + 8]
call sub.KERNEL32.DLL_CreateFileA
mov dword [ebp - 4], eax
mov ecx, dword [ebp - 4]
cmp ecx, 0xffffffff
jne 0x4b7c87
xor eax, eax
jmp 0x4b8245
lea edx, [ebp - 0x8cc]
push edx
push dword [ebp - 4]
call sub.KERNEL32.DLL_GetFileInformationByHandle
mov ecx, dword [ebp - 0x8a8]
mov dword [ebp - 0x28], ecx
mov eax, dword [ebp - 0x8ac]
mov dword [ebp - 0x24], eax
push 0
push 0x800
mov eax, dword [ebp - 0x28]
mov edx, dword [ebp - 0x24]
add eax, 0x800
adc edx, 0
sub eax, 1
sbb edx, 0
call fcn.00674507
mov dword [0x7d5ccc], eax
xor edx, edx
mov dword [0x7d5cd0], edx
push 4
call fcn.004277e0
pop ecx
test byte [ebp + 0xc], 1
je 0x4b7e06
lea ecx, [ebp - 0x88]
push ecx
call fcn.004b71e4
pop ecx
jmp 0x4b7e06
mov eax, dword [ebp - 0x20]
test eax, eax
je 0x4b7e28
test byte [ebp + 0xc], 1
je 0x4b7d23
push dword [ebp - 0x20]
lea edx, [ebp - 0x898]
push edx
lea ecx, [ebp - 0x88]
push ecx
call fcn.004b7220
add esp, 0xc
test byte [ebp + 0xc], 2
je 0x4b7d6e
xor eax, eax
mov dword [ebp - 0x1c], eax
mov edx, dword [ebp - 0x1c]
mov ecx, dword [ebp - 0x20]
cmp edx, ecx
jae 0x4b7d6e
mov eax, dword [ebp - 0x14]
shr eax, 8
mov edx, dword [ebp - 0x1c]
xor ecx, ecx
mov cl, byte [ebp + edx - 0x898]
mov edx, dword [ebp - 0x14]
xor ecx, edx
and ecx, 0xff
mov ecx, dword [ecx*4 + 0x76e108]
xor eax, ecx
mov dword [ebp - 0x14], eax
inc dword [ebp - 0x1c]
mov eax, dword [ebp - 0x1c]
mov edx, dword [ebp - 0x20]
cmp eax, edx
jb 0x4b7d38
test byte [ebp + 0xc], 4
je 0x4b7dee
xor eax, eax
mov dword [ebp - 0x1c], eax
mov ecx, dword [ebp - 0x1c]
mov eax, dword [ebp - 0x20]
cmp ecx, eax
jae 0x4b7dee
movzx edx, word [ebp - 0x16]
and edx, 0xff
mov ecx, dword [ebp - 0x1c]
xor eax, eax
mov al, byte [ebp + ecx - 0x898]
xor edx, eax
mov dx, word [edx*2 + 0x76e508]
movzx ecx, word [ebp - 0x16]
sar ecx, 8
xor dx, cx
mov word [ebp - 0x16], dx
movzx eax, word [ebp - 0x18]
sar eax, 8
and eax, 0xff
mov edx, dword [ebp - 0x1c]
xor ecx, ecx
mov cl, byte [ebp + edx - 0x898]
xor eax, ecx
mov ax, word [eax*2 + 0x76e708]
mov dx, word [ebp - 0x18]
shl edx, 8
xor ax, dx
mov word [ebp - 0x18], ax
inc dword [ebp - 0x1c]
mov ecx, dword [ebp - 0x1c]
mov eax, dword [ebp - 0x20]
cmp ecx, eax
jb 0x4b7d83
inc dword [0x7d5cd0]
mov edx, dword [0x7d5ccc]
test edx, edx
jbe 0x4b7e06
push 0xb
call fcn.004277e0
pop ecx
push 0
lea ecx, [ebp - 0x20]
push ecx
push 0x800
lea eax, [ebp - 0x898]
push eax
push dword [ebp - 4]
call sub.KERNEL32.DLL_ReadFile
test eax, eax
jne 0x4b7cf9
test byte [ebp + 0xc], 1
je 0x4b7e44
lea edx, [ebp - 0x88]
push edx
lea ecx, [ebp - 0x98]
push ecx
call fcn.004b7308
add esp, 8
push dword [ebp - 4]
call sub.KERNEL32.DLL_CloseHandle
push dword [ebp + 8]
lea eax, [ebp - 0x9d0]
push eax
call fcn.0066c9ec
add esp, 8
push 0x2e
lea edx, [ebp - 0x9d0]
push edx
call fcn.0066cb35
add esp, 8
mov dword [ebp - 0x2c], eax
mov ecx, dword [ebp - 0x2c]
test ecx, ecx
je 0x4b7e7f
mov eax, dword [ebp - 0x2c]
mov byte [eax], 0
xor edx, edx
mov dword [ebp - 8], edx
xor ecx, ecx
mov dword [ebp - 0xc], ecx
xor eax, eax
mov dword [ebp - 0x10], eax
test byte [ebp + 0xc], 1
je 0x4b7ec6
lea edx, [ebp - 0x9d0]
push edx
push 0x76eb0d
lea ecx, [ebp - 0xad4]
push ecx
call fcn.00670e94
add esp, 0xc
push 0x76eb14
lea eax, [ebp - 0xad4]
push eax
call fcn.0066ef18
add esp, 8
mov dword [ebp - 0xc], eax
test byte [ebp + 0xc], 2
je 0x4b7efe
lea edx, [ebp - 0x9d0]
push edx
push str._s.sfv
lea ecx, [ebp - 0xad4]
push ecx
call fcn.00670e94
add esp, 0xc
push 0x76eb1e
lea eax, [ebp - 0xad4]
push eax
call fcn.0066ef18
add esp, 8
mov dword [ebp - 0x10], eax
test byte [ebp + 0xc], 4
je 0x4b7f36
lea edx, [ebp - 0x9d0]
push edx
push str._s.txt
lea ecx, [ebp - 0xad4]
push ecx
call fcn.00670e94
add esp, 0xc
push 0x76eb28
lea eax, [ebp - 0xad4]
push eax
call fcn.0066ef18
add esp, 8
mov dword [ebp - 8], eax
push 0x5c
push dword [ebp + 8]
call fcn.0066cb35
add esp, 8
mov dword [ebp - 0x2c], eax
mov edx, dword [ebp - 0x2c]
test edx, edx
jne 0x4b7f55
mov ecx, dword [ebp + 8]
mov dword [ebp - 0x2c], ecx
jmp 0x4b7f58
inc dword [ebp - 0x2c]
push dword [ebp - 0x2c]
lea eax, [ebp - 0x9d0]
push eax
call fcn.0066c9ec
add esp, 8
mov edx, dword [ebp - 8]
test edx, edx
je 0x4b7f81
push str._ISO_checksum_generated_by_UltraISO__http:__www.ezbsystems.com__n
push dword [ebp - 8]
call fcn.0066ef4c
add esp, 8
mov ecx, dword [ebp - 0xc]
test ecx, ecx
je 0x4b7f98
push 0x76eb6d
push dword [ebp - 0xc]
call fcn.0066ef4c
add esp, 8
mov eax, dword [ebp - 0x10]
test eax, eax
je 0x4b7faf
push 0x76ebaf
push dword [ebp - 0x10]
call fcn.0066ef4c
add esp, 8
lea edx, [ebp - 0x30]
push edx
call fcn.00679560
pop ecx
lea ecx, [ebp - 0x30]
push ecx
call fcn.00678ef4
pop ecx
mov esi, eax
lea edi, [ebp - 0xaf8]
mov ecx, 9
rep movsd dword es:[edi], dword [esi]
mov eax, dword [ebp - 8]
test eax, eax
je 0x4b8016
push dword [ebp - 0xaf8]
push dword [ebp - 0xaf4]
push dword [ebp - 0xaf0]
push dword [ebp - 0xaec]
mov edx, dword [ebp - 0xae8]
inc edx
push edx
mov ecx, dword [ebp - 0xae4]
add ecx, 0x76c
push ecx
push 0x76ebf1
push dword [ebp - 8]
call fcn.0066ef4c
add esp, 0x20
mov eax, dword [ebp - 0xc]
test eax, eax
je 0x4b805a
push dword [ebp - 0xaf8]
push dword [ebp - 0xaf4]
push dword [ebp - 0xaf0]
push dword [ebp - 0xaec]
mov edx, dword [ebp - 0xae8]
inc edx
push edx
mov ecx, dword [ebp - 0xae4]
add ecx, 0x76c
push ecx
push 0x76ec1b
push dword [ebp - 0xc]
call fcn.0066ef4c
add esp, 0x20
mov eax, dword [ebp - 0x10]
test eax, eax
je 0x4b809e
push dword [ebp - 0xaf8]
push dword [ebp - 0xaf4]
push dword [ebp - 0xaf0]
push dword [ebp - 0xaec]
mov edx, dword [ebp - 0xae8]
inc edx
push edx
mov ecx, dword [ebp - 0xae4]
add ecx, 0x76c
push ecx
push str.__Generated__d__02d__02d__02d:_02d:_02d_n_n
push dword [ebp - 0x10]
call fcn.0066ef4c
add esp, 0x20
mov eax, dword [ebp - 8]
test eax, eax
je 0x4b80ee
lea edx, [ebp - 0x9d0]
push edx
push str.__File:__s_n
push dword [ebp - 8]
call fcn.0066ef4c
add esp, 0xc
mov ecx, dword [ebp - 0x24]
test ecx, ecx
jle 0x4b80db
push dword [ebp - 0x28]
push dword [ebp - 0x24]
push str.__Size:_0x_x_08x_Bytes_n
push dword [ebp - 8]
call fcn.0066ef4c
add esp, 0x10
jmp 0x4b80ee
push dword [ebp - 0x28]
push str.__Size:__u_Bytes_n
push dword [ebp - 8]
call fcn.0066ef4c
add esp, 0xc
test byte [ebp + 0xc], 1
je 0x4b817a
xor eax, eax
mov dword [ebp - 0x1c], eax
mov edx, dword [ebp - 0x1c]
xor ecx, ecx
mov cl, byte [ebp + edx - 0x98]
push ecx
push 0x76eca5
mov eax, dword [ebp - 0x1c]
add eax, eax
lea edx, [ebp - 0xb1c]
add eax, edx
push eax
call fcn.00670e94
add esp, 0xc
inc dword [ebp - 0x1c]
mov ecx, dword [ebp - 0x1c]
cmp ecx, 0x10
jb 0x4b80fd
mov eax, dword [ebp - 8]
test eax, eax
je 0x4b814e
lea edx, [ebp - 0xb1c]
push edx
push str.___MD5:__s_n
push dword [ebp - 8]
call fcn.0066ef4c
add esp, 0xc
mov ecx, dword [ebp - 0xc]
test ecx, ecx
je 0x4b817a
mov eax, dword [ebp - 0xc]
test eax, eax
je 0x4b817a
lea edx, [ebp - 0x9d0]
push edx
lea ecx, [ebp - 0xb1c]
push ecx
push 0x76ecb6
push dword [ebp - 0xc]
call fcn.0066ef4c
add esp, 0x10
test byte [ebp + 0xc], 2
je 0x4b81c7
mov eax, dword [ebp - 8]
test eax, eax
je 0x4b81a3
mov edx, dword [ebp - 0x14]
not edx
push edx
mov ecx, dword [ebp - 0x14]
not ecx
push ecx
push str.CRC_32:__u__0x_08x___n
push dword [ebp - 8]
call fcn.0066ef4c
add esp, 0x10
mov eax, dword [ebp - 0x10]
test eax, eax
je 0x4b81c7
mov edx, dword [ebp - 0x14]
not edx
push edx
lea ecx, [ebp - 0x9d0]
push ecx
push str._s__08x_n
push dword [ebp - 0x10]
call fcn.0066ef4c
add esp, 0x10
test byte [ebp + 0xc], 4
je 0x4b8208
mov eax, dword [ebp - 8]
test eax, eax
je 0x4b8208
movzx edx, word [ebp - 0x16]
push edx
movzx ecx, word [ebp - 0x16]
push ecx
push str.CRC_16:__u__0x_04x___n
push dword [ebp - 8]
call fcn.0066ef4c
add esp, 0x10
movzx eax, word [ebp - 0x18]
push eax
movzx edx, word [ebp - 0x18]
push edx
push str.CRC_CCITT:__u__0x_04x___n
push dword [ebp - 8]
call fcn.0066ef4c
add esp, 0x10
mov ecx, dword [ebp - 8]
test ecx, ecx
je 0x4b8218
push dword [ebp - 8]
call fcn.0066ea1c
pop ecx
mov eax, dword [ebp - 0xc]
test eax, eax
je 0x4b8228
push dword [ebp - 0xc]
call fcn.0066ea1c
pop ecx
mov edx, dword [ebp - 0x10]
test edx, edx
je 0x4b8238
push dword [ebp - 0x10]
call fcn.0066ea1c
pop ecx
push 0
call fcn.004277e0
pop ecx
mov eax, 1
pop edi
pop esi
mov esp, ebp
pop ebp
ret