Function at 0x1800b7e90
Capabilities:
Encode data using xor

Disassembly:
push rbx
push rbp
push rsi
push rdi
push r15
sub rsp, 0x90
mov rax, qword [0x18017a408]
xor rax, rsp
mov qword [rsp + 0x68], rax
mov rsi, qword [rsp + 0xe8]
mov rbx, r8
mov r8, qword [rsp + 0xe0]
mov r15d, r9d
mov qword [rsp + 0x48], r8
mov rbp, rdx
mov rdi, rcx
test r9d, r9d
jne 0x1800b7eda
mov al, 1
jmp 0x1800b816a
test rbx, rbx
jne 0x1800b7ef6
mov rax, qword [rsi]
lea rdx, str.NULL_passed_to_CFB_decryptor
mov rcx, rsi
call qword [rax + 0x28]
xor al, al
jmp 0x1800b816a
mov ecx, dword [rcx + 0xa8]
cmp ecx, 1
ja 0x1800b7f1c
mov rax, qword [rdi]
mov rcx, rdi
mov qword [rsp + 0x28], rsi
mov qword [rsp + 0x20], r8
mov r8, rbx
call qword [rax + 0x38]
jmp 0x1800b816a
xor edx, edx
mov qword [rsp + 0x78], r14
mov eax, r15d
div ecx
mov r14d, eax
test edx, edx
je 0x1800b7f46
mov rax, qword [rsi]
lea rdx, str.CFB_decrypt_input_not_a_multiple_of_the_cipher_block_size.
mov rcx, rsi
call qword [rax + 0x28]
xor al, al
jmp 0x1800b8165
test eax, eax
je 0x1800b7f3f
mov qword [rsp + 0x88], r12
mov rcx, r8
mov qword [rsp + 0x80], r13
movzx r13d, byte [0x18017fda8]
call fcn.180015e00
mov r12d, eax
add eax, r15d
mov r15, qword [rsp + 0x48]
mov rcx, r15
mov dword [rsp + 0x30], eax
lea edx, [rax + 0x20]
call fcn.1800157f0
test al, al
jne 0x1800b7f9f
mov rax, qword [rsi]
lea rdx, str.Unable_to_allocate_CFB_decrypt_output_buffer.
mov rcx, rsi
call qword [rax + 0x28]
xor al, al
jmp 0x1800b8155
mov edx, r12d
mov rcx, r15
call fcn.180015b00
mov rsi, rax
test r13b, r13b
je 0x1800b8080
mov eax, dword [rdi + 0xa8]
lea r15, [rbp + 8]
test eax, eax
je 0x1800b7fd4
mov r8d, eax
lea rcx, [rsp + 0x38]
mov rdx, r15
call fcn.1800caa00
xor ebp, ebp
nop word [rax + rax]
mov rax, qword [rdi]
lea r8, [rsp + 0x58]
lea rdx, [rsp + 0x38]
mov rcx, rdi
call qword [rax + 0x20]
mov eax, ebp
cmp dword [rdi + 0xa8], eax
jbe 0x1800b8017
nop dword [rax]
mov edx, eax
inc eax
movzx ecx, byte [rdx + rbx]
xor cl, byte [rsp + rdx + 0x58]
mov byte [rdx + rsi], cl
cmp eax, dword [rdi + 0xa8]
jb 0x1800b8000
mov r9d, dword [rdi + 0xa8]
add rsi, r9
test r9d, r9d
je 0x1800b8051
lea rax, [rsp + 0x38]
mov r8, rbx
sub r8, rax
lea rcx, [rsp + 0x38]
mov edx, r9d
nop dword [rax]
movzx eax, byte [r8 + rcx]
mov byte [rcx], al
lea rcx, [rcx + 1]
sub rdx, 1
jne 0x1800b8040
add rbx, r9
add r14d, 0xffffffff
jne 0x1800b7fe0
cmp dword [rdi + 0xa8], ebp
jbe 0x1800b8076
movzx eax, byte [rsp + rbp + 0x38]
mov byte [rbp + r15], al
inc ebp
cmp ebp, dword [rdi + 0xa8]
jb 0x1800b8062
mov rcx, qword [rsp + 0x48]
jmp 0x1800b814a
mov eax, dword [rdi + 0xa8]
cmp eax, 0x10
jne 0x1800b80f7
mov rax, qword [rbp + 8]
mov qword [rsp + 0x38], rax
mov rax, qword [rbp + 0x10]
mov qword [rsp + 0x40], rax
nop dword [rax]
mov rax, qword [rdi]
lea r8, [rsp + 0x48]
lea rdx, [rsp + 0x38]
mov rcx, rdi
call qword [rax + 0x20]
mov rax, qword [rsp + 0x48]
lea rsi, [rsi + 0x10]
xor rax, qword [rbx]
lea rbx, [rbx + 0x10]
mov qword [rsi - 0x10], rax
mov rax, qword [rbx - 8]
xor rax, qword [rsp + 0x50]
mov qword [rsi - 8], rax
movups xmm0, xmmword [rbx - 0x10]
movups xmmword [rsp + 0x38], xmm0
add r14d, 0xffffffff
jne 0x1800b80a0
mov rax, qword [rsp + 0x38]
mov qword [rbp + 8], rax
mov rax, qword [rsp + 0x40]
mov qword [rbp + 0x10], rax
jmp 0x1800b8147
cmp eax, 8
jne 0x1800b8153
mov rax, qword [rbp + 8]
sub rsi, rbx
mov qword [rsp + 0x48], rax
nop dword [rax + rax]
mov rax, qword [rdi]
lea r8, [rsp + 0x38]
lea rdx, [rsp + 0x48]
mov rcx, rdi
call qword [rax + 0x20]
mov rax, qword [rbx]
lea rbx, [rbx + 8]
xor rax, qword [rsp + 0x38]
mov qword [rsi + rbx - 8], rax
mov rax, qword [rbx - 8]
mov qword [rsp + 0x48], rax
add r14d, 0xffffffff
jne 0x1800b8110
mov qword [rbp + 8], rax
mov rcx, r15
mov edx, dword [rsp + 0x30]
call fcn.180016ad0
mov al, 1
mov r13, qword [rsp + 0x80]
mov r12, qword [rsp + 0x88]
mov r14, qword [rsp + 0x78]
mov rcx, qword [rsp + 0x68]
xor rcx, rsp
call fcn.1800c9b90
add rsp, 0x90
pop r15
pop rdi
pop rsi
pop rbp
pop rbx
ret