Function at 0x140120a00
Capabilities:
Encode data using xor

Disassembly:
push rbx
push rsi
push r12
push r15
mov eax, 0x58
call fcn.1402a9b20
sub rsp, rax
mov rax, qword [rcx + 0x188]
mov rbx, rcx
mov rcx, qword [rcx + 0x38]
mov rsi, r9
mov qword [rsp + 0x38], rax
add rcx, r9
movabs rax, 0xfffffffe0
mov r15, r8
mov r12, rdx
cmp rcx, rax
ja 0x140120d4e
cmp rcx, r9
jb 0x140120d4e
mov qword [rsp + 0x88], rbp
mov ebp, dword [rbx + 0x178]
mov qword [rsp + 0x50], rdi
xor edi, edi
mov qword [rbx + 0x38], rcx
mov dword [rsp + 0x80], ebp
cmp dword [rbx + 0x17c], edi
je 0x140120abf
lea rcx, [rbx + 0x40]
test r9, r9
jne 0x140120a97
lea rdx, [rbx + 0x60]
call qword [rbx + 0x170]
xor eax, eax
mov dword [rbx + 0x17c], edi
jmp 0x140120d36
movups xmm0, xmmword [rcx]
lea rdx, [rbx + 0x190]
mov ebp, reloc.WS2_32.dll_recv
mov dword [rsp + 0x80], ebp
movups xmmword [rdx], xmm0
mov qword [rcx], rdi
mov qword [rbx + 0x48], rdi
mov dword [rbx + 0x17c], edi
jmp 0x140120ac6
lea rdx, [rbx + 0x190]
movzx eax, byte [rbx + 0xd]
mov qword [rsp + 0x48], r13
movzx r13d, byte [rbx + 0xc]
shl r13d, 8
or r13d, eax
mov qword [rsp + 0x40], r14
movzx eax, byte [rbx + 0xe]
mov r14d, ebp
shl r13d, 8
or r13d, eax
movzx eax, byte [rbx + 0xf]
shl r13d, 8
or r13d, eax
and r14d, 0xf
mov dword [rsp + 0x30], r14d
je 0x140120b67
test rsi, rsi
je 0x140120b41
movzx ecx, byte [r14 + rbx + 0x10]
dec rsi
xor cl, byte [r12]
inc r12
mov byte [r15], cl
inc r15
mov eax, ebp
inc ebp
inc r14d
and r14d, 0xf
mov dword [rsp + 0x30], r14d
mov byte [rax + rbx + 0x190], cl
jne 0x140120b04
lea rdx, [rbx + 0x190]
jmp 0x140120b4a
test r14d, r14d
jne 0x140120d24
mov r8, rdx
mov r9d, ebp
lea rdx, [rbx + 0x60]
lea rcx, [rbx + 0x40]
call qword [rbx + 0x168]
mov ebp, edi
mov dword [rsp + 0x80], edi
lea rax, [rbx + 0x60]
cmp rsi, 0x10
jb 0x140120b95
test ebp, ebp
je 0x140120b95
mov r9d, ebp
lea r8, [rbx + 0x190]
mov rdx, rax
lea rcx, [rbx + 0x40]
call qword [rbx + 0x168]
mov ebp, edi
mov dword [rsp + 0x80], edi
mov r10, qword [rsp + 0xa0]
cmp rsi, 0xc00
jb 0x140120c4c
mov rbp, qword [rsp + 0x38]
movabs rax, 0xaaaaaaaaaaaaaaab
mul rsi
mov rdi, rdx
shr rdi, 0xb
imul rax, rdi, 0xfffffffffffff400
add rsi, rax
nop dword [rax]
mov r9, rbp
mov qword [rsp + 0x20], rbx
mov r8d, 0xc0
mov rdx, r15
mov rcx, r12
call r10
add r13d, 0xc0
lea rdx, [rbx + 0x60]
mov eax, r13d
mov byte [rbx + 0xf], r13b
shr eax, 0x18
lea rcx, [rbx + 0x40]
mov byte [rbx + 0xc], al
mov r9d, 0xc00
mov eax, r13d
mov r8, r15
shr eax, 0x10
mov byte [rbx + 0xd], al
mov eax, r13d
shr eax, 8
mov byte [rbx + 0xe], al
call qword [rbx + 0x168]
mov r10, qword [rsp + 0xa0]
add r15, 0xc00
add r12, 0xc00
sub rdi, 1
jne 0x140120bd0
mov ebp, dword [rsp + 0x80]
mov r14d, dword [rsp + 0x30]
mov rax, rsi
and rax, 0xfffffffffffffff0
mov qword [rsp + 0x98], rax
je 0x140120cc1
mov r9, qword [rsp + 0x38]
mov rdi, rax
shr rdi, 4
mov rdx, r15
mov r8, rdi
mov qword [rsp + 0x20], rbx
mov rcx, r12
call r10
add r13d, edi
lea rdx, [rbx + 0x60]
mov rdi, qword [rsp + 0x98]
lea rcx, [rbx + 0x40]
mov eax, r13d
mov byte [rbx + 0xf], r13b
shr eax, 0x18
mov r9, rdi
mov byte [rbx + 0xc], al
mov r8, r15
mov eax, r13d
add r12, rdi
shr eax, 0x10
sub rsi, rdi
mov byte [rbx + 0xd], al
mov eax, r13d
shr eax, 8
mov byte [rbx + 0xe], al
call qword [rbx + 0x168]
add r15, rdi
test rsi, rsi
je 0x140120d24
mov r8, qword [rsp + 0x38]
lea rdx, [rbx + 0x10]
mov rcx, rbx
call qword [rbx + 0x180]
inc r13d
mov eax, r13d
mov byte [rbx + 0xf], r13b
shr eax, 0x18
mov byte [rbx + 0xc], al
mov eax, r13d
shr eax, 0x10
mov byte [rbx + 0xd], al
mov eax, r13d
shr eax, 8
mov byte [rbx + 0xe], al
nop word [rax + rax]
mov eax, r14d
inc r14d
movzx ecx, byte [rax + rbx + 0x10]
xor cl, byte [rax + r12]
mov byte [rax + r15], cl
mov eax, ebp
inc ebp
mov byte [rax + rbx + 0x190], cl
sub rsi, 1
jne 0x140120d00
mov r13, qword [rsp + 0x48]
xor eax, eax
mov r14, qword [rsp + 0x40]
mov dword [rbx + 0x178], ebp
mov rbp, qword [rsp + 0x88]
mov rdi, qword [rsp + 0x50]
add rsp, 0x58
pop r15
pop r12
pop rsi
pop rbx
ret
mov eax, 0xffffffff
add rsp, 0x58
pop r15
pop r12
pop rsi
pop rbx
ret