Function at 0x140004900
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
push rbx
push rbp
push rsi
push r13
push r14
push r15
sub rsp, 0xa8
mov rax, qword [0x1406b82c0]
xor rax, rsp
mov qword [rsp + 0x80], rax
mov rsi, qword [rsp + 0x108]
mov r14d, r8d
mov qword [rsp + 0x68], rsi
lea ebp, [r8 + r8*2]
mov dword [rsp + 0x40], r9d
mov dword [rsp + 0x48], r8d
mov dword [rsp + 0x44], edx
mov qword [rsp + 0x58], rcx
mov dword [rsp + 0x78], 0x474e5089
mov dword [rsp + 0x7c], 0xa1a0a0d
test edx, edx
jne 0x140004962
mov dword [rsp + 0x44], ebp
lea ecx, [rbp + 1]
mov qword [rsp + 0xa0], rdi
mov eax, r9d
mov qword [rsp + 0x98], r12
mul ecx
mov rbx, 0xffffffffffffffff
mov ecx, eax
cmovo rcx, rbx
call qword [sym.imp.api_ms_win_crt_heap_l1_1_0.dll_malloc]
mov qword [rsp + 0x60], rax
mov r13, rax
test rax, rax
je 0x1400049bf
mov eax, 3
mul r14d
mov ecx, eax
cmovo rcx, rbx
call qword [sym.imp.api_ms_win_crt_heap_l1_1_0.dll_malloc]
mov rbx, rax
test rax, rax
jne 0x1400049f2
mov rcx, r13
call qword [sym.imp.api_ms_win_crt_heap_l1_1_0.dll_free]
xor eax, eax
mov r12, qword [rsp + 0x98]
mov rdi, qword [rsp + 0xa0]
mov rcx, qword [rsp + 0x80]
xor rcx, rsp
call fcn.14028f2f0
add rsp, 0xa8
pop r15
pop r14
pop r13
pop rsi
pop rbp
pop rbx
ret
mov eax, dword [rsp + 0x40]
xor edi, edi
mov r12d, edi
test eax, eax
jle 0x140004bbc
movsxd r14, ebp
mov dword [rsp + 0x4c], edi
nop word [rax + rax]
mov r13d, edi
mov r15d, 0x7fffffff
mov esi, edi
nop dword [rax + rax]
mov r8d, dword [rsp + 0x48]
mov r9d, eax
mov edx, dword [rsp + 0x44]
mov rcx, qword [rsp + 0x58]
mov qword [rsp + 0x38], rbx
mov dword [rsp + 0x30], esi
mov dword [rsp + 0x20], r12d
call fcn.1400045c0
mov r10d, edi
mov rax, rdi
test ebp, ebp
jle 0x140004acf
cmp ebp, 8
jb 0x140004acf
cmp dword [reloc.WS2_32.dll_accept], 2
jl 0x140004acf
mov edx, ebp
xorps xmm3, xmm3
xorps xmm4, xmm4
and edx, 0x80000007
jge 0x140004a77
dec edx
or edx, 0xfffffff8
inc edx
mov ecx, ebp
sub ecx, edx
movsxd rdx, ecx
nop
pmovsxbd xmm1, dword [rbx + rax]
pabsd xmm2, xmm1
pmovsxbd xmm1, dword [rbx + rax + 4]
paddd xmm3, xmm2
add rax, 8
pabsd xmm2, xmm1
paddd xmm2, xmm4
movdqa xmm4, xmm2
cmp rax, rdx
jl 0x140004a80
paddd xmm3, xmm2
movdqa xmm0, xmm3
psrldq xmm0, 8
paddd xmm3, xmm0
movdqa xmm0, xmm3
psrldq xmm0, 4
paddd xmm3, xmm0
movd r10d, xmm3
mov r8d, edi
mov r9d, edi
cmp rax, r14
jge 0x140004b30
mov rcx, r14
sub rcx, rax
cmp rcx, 2
jl 0x140004b1b
lea r11, [r14 - 1]
nop word [rax + rax]
movsx ecx, byte [rbx + rax]
mov edx, ecx
neg edx
cmovs edx, ecx
movsx ecx, byte [rbx + rax + 1]
add r8d, edx
mov edx, ecx
neg edx
cmovs edx, ecx
add rax, 2
add r9d, edx
cmp rax, r11
jl 0x140004af0
cmp rax, r14
jge 0x140004b29
movsx ecx, byte [rax + rbx]
mov eax, ecx
neg eax
cmovs eax, ecx
add r10d, eax
lea eax, [r9 + r8]
add r10d, eax
cmp r10d, r15d
jge 0x140004b3b
mov r15d, r10d
mov r13d, esi
mov eax, dword [rsp + 0x40]
inc esi
cmp esi, 5
jl 0x140004a20
cmp esi, r13d
je 0x140004b77
mov r8d, dword [rsp + 0x48]
mov r9d, eax
mov edx, dword [rsp + 0x44]
mov rcx, qword [rsp + 0x58]
mov qword [rsp + 0x38], rbx
mov dword [rsp + 0x30], r13d
mov dword [rsp + 0x20], r12d
call fcn.1400045c0
mov esi, r13d
mov r13, qword [rsp + 0x60]
mov r8, r14
movsxd r15, dword [rsp + 0x4c]
mov rdx, rbx
lea rcx, [r13 + 1]
add rcx, r15
mov byte [r15 + r13], sil
call sub.VCRUNTIME140.dll_memcpy
lea eax, [rbp + 1]
inc r12d
add r15d, eax
mov eax, dword [rsp + 0x40]
mov dword [rsp + 0x4c], r15d
cmp r12d, eax
jl 0x140004a10
mov r14d, dword [rsp + 0x48]
mov rsi, qword [rsp + 0x68]
mov rcx, rbx
call qword [sym.imp.api_ms_win_crt_heap_l1_1_0.dll_free]
mov r15d, dword [rsp + 0x40]
lea edx, [r14*2 + 1]
add edx, r14d
lea r8, [rsp + 0x70]
imul edx, r15d
mov r9d, 8
mov rcx, r13
call fcn.140003270
mov rcx, r13
mov r12, rax
call qword [sym.imp.api_ms_win_crt_heap_l1_1_0.dll_free]
test r12, r12
je 0x1400049bf
mov ecx, dword [rsp + 0x70]
mov rax, 0xffffffffffffffff
add ecx, 0x2d
add ecx, 0xc
cmovb rcx, rax
call qword [sym.imp.api_ms_win_crt_heap_l1_1_0.dll_malloc]
mov rbp, rax
test rax, rax
je 0x1400049bf
movsxd r8, dword [rsp + 0x70]
lea eax, [r8 + 0x39]
mov dword [rsi], eax
lea rsi, [rbp + 8]
mov rax, qword [rsp + 0x78]
mov qword [rbp], rax
mov eax, r14d
sar eax, 0x18
mov byte [rsi + 8], al
mov eax, r14d
sar eax, 0x10
mov byte [rsi + 9], al
mov eax, r14d
sar eax, 8
mov byte [rsi + 0xa], al
mov eax, r15d
sar eax, 0x18
mov byte [rsi + 0xc], al
mov eax, r15d
sar eax, 0x10
mov byte [rsi + 0xd], al
mov eax, r15d
sar eax, 8
mov byte [rsi + 0xe], al
mov byte [rsi + 0xb], r14b
lea r14, [0x1404ff1e0]
mov dword [rsi], 0xd000000
mov dword [rsi + 4], 0x52444849
mov byte [rsi + 0xf], r15b
mov dword [rsi + 0x10], 0x208
mov byte [rsi + 0x14], dil
movzx eax, byte [rsi + 4]
not al
movzx ecx, al
movzx eax, byte [rsi + 5]
mov edx, dword [r14 + rcx*4]
xor edx, 0xffffff
movzx ecx, dl
xor rcx, rax
shr edx, 8
movzx eax, byte [rsi + 6]
xor edx, dword [r14 + rcx*4]
movzx ecx, dl
xor rcx, rax
shr edx, 8
movzx eax, byte [rsi + 7]
xor edx, dword [r14 + rcx*4]
movzx ecx, dl
xor rcx, rax
shr edx, 8
movzx eax, byte [rsi + 8]
xor edx, dword [r14 + rcx*4]
movzx ecx, dl
xor rcx, rax
shr edx, 8
movzx eax, byte [rsi + 9]
xor edx, dword [r14 + rcx*4]
movzx ecx, dl
xor rcx, rax
shr edx, 8
movzx eax, byte [rsi + 0xa]
xor edx, dword [r14 + rcx*4]
movzx ecx, dl
xor rcx, rax
shr edx, 8
movzx eax, byte [rsi + 0xb]
xor edx, dword [r14 + rcx*4]
movzx ecx, dl
xor rcx, rax
shr edx, 8
movzx eax, byte [rsi + 0xc]
xor edx, dword [r14 + rcx*4]
movzx ecx, dl
xor rcx, rax
shr edx, 8
movzx eax, byte [rsi + 0xd]
xor edx, dword [r14 + rcx*4]
movzx ecx, dl
xor rcx, rax
shr edx, 8
xor edx, dword [r14 + rcx*4]
movzx eax, byte [rsi + 0xe]
mov rbx, r8
movzx ecx, dl
xor rcx, rax
shr edx, 8
movzx eax, r15b
xor edx, dword [r14 + rcx*4]
movzx ecx, dl
xor rcx, rax
shr edx, 8
movzx eax, byte [rsi + 0x10]
mov byte [rsi + 0x1c], r8b
mov dword [rsi + 0x1d], 0x54414449
xor edx, dword [r14 + rcx*4]
movzx ecx, dl
xor rcx, rax
shr edx, 8
xor edx, dword [r14 + rcx*4]
mov eax, edx
shr edx, 8
xor rax, 2
movzx ecx, al
xor edx, dword [r14 + rcx*4]
movzx ecx, dl
shr edx, 8
xor edx, dword [r14 + rcx*4]
movzx ecx, dl
shr edx, 8
xor edx, dword [r14 + rcx*4]
movzx ecx, dl
shr edx, 8
xor edx, dword [r14 + rcx*4]
not edx
mov eax, edx
mov byte [rsi + 0x18], dl
shr eax, 0x18
mov byte [rsi + 0x15], al
mov eax, edx
shr eax, 0x10
mov byte [rsi + 0x16], al
mov eax, edx
shr eax, 8
mov rdx, r12
mov byte [rsi + 0x17], al
mov eax, r8d
sar eax, 0x18
mov byte [rsi + 0x19], al
mov eax, r8d
sar eax, 0x10
mov byte [rsi + 0x1a], al
mov eax, r8d
sar eax, 8
mov byte [rsi + 0x1b], al
add rsi, 0x21
mov rcx, rsi
call sub.VCRUNTIME140.dll_memcpy
mov rcx, r12
add rsi, rbx
call qword [sym.imp.api_ms_win_crt_heap_l1_1_0.dll_free]
movsxd rcx, dword [rsp + 0x70]
mov r8d, 0xffffffff
lea eax, [rcx + 4]
movsxd r10, eax
test eax, eax
jle 0x140004e4d
mov r9, rsi
sub r9, rcx
nop word [rax + rax]
movzx edx, byte [r9 + rdi - 4]
inc rdi
movzx ecx, r8b
xor rdx, rcx
shr r8d, 8
xor r8d, dword [r14 + rdx*4]
cmp rdi, r10
jl 0x140004e30
mov rdx, qword [0x1404ff4b8]
not r8d
xor edx, 0xffffff
mov byte [rsi + 3], r8b
movzx ecx, dl
mov eax, r8d
shr eax, 0x18
mov byte [rsi], al
mov eax, r8d
shr eax, 0x10
mov byte [rsi + 1], al
mov eax, r8d
mov dword [rsi + 4], 0
mov dword [rsi + 8], 0x444e4549
shr edx, 8
shr eax, 8
mov byte [rsi + 2], al
movzx eax, byte [rsi + 9]
xor rcx, rax
movzx eax, byte [rsi + 0xa]
xor edx, dword [r14 + rcx*4]
movzx ecx, dl
xor rcx, rax
shr edx, 8
movzx eax, byte [rsi + 0xb]
xor edx, dword [r14 + rcx*4]
movzx ecx, dl
xor rcx, rax
shr edx, 8
mov rax, rbp
xor edx, dword [r14 + rcx*4]
not edx
mov ecx, edx
mov byte [rsi + 0xf], dl
shr ecx, 0x18
mov byte [rsi + 0xc], cl
mov ecx, edx
shr ecx, 0x10
mov byte [rsi + 0xd], cl
mov ecx, edx
shr ecx, 8
mov byte [rsi + 0xe], cl
jmp 0x1400049c1