Function at 0x140020abc
Capabilities:
Encrypt data using rc4 ksa

Disassembly:
mov rax, rsp
mov qword [rax + 0x18], rbx
push rbp
push rsi
push rdi
push r12
push r13
push r14
push r15
lea rbp, [rax - 0x68]
sub rsp, 0x130
movaps xmmword [rax - 0x48], xmm6
mov rdi, rcx
movsd xmm6, qword [0x140137140]
xorps xmm5, xmm5
xorps xmm4, xmm4
xorps xmm3, xmm3
movaps xmm2, xmm3
movaps xmm1, xmm3
mulsd xmm2, qword [0x140136de0]
movaps xmm0, xmm3
mulsd xmm1, qword [0x140136278]
mulsd xmm0, xmm3
mulsd xmm2, xmm3
mulsd xmm1, xmm3
subsd xmm2, xmm0
addsd xmm1, qword [0x1401365b8]
divsd xmm2, xmm1
addsd xmm4, xmm2
comisd xmm4, xmmword [0x140136848]
jbe 0x140020b43
movaps xmm0, xmm3
mulsd xmm0, qword [0x140135f18]
subsd xmm4, xmm0
addsd xmm3, qword [0x1401360d0]
comisd xmm6, xmm3
ja 0x140020af1
comisd xmm5, xmm4
jbe 0x140020b66
call fcn.1400429a5
call fcn.1400429df
jmp 0x140020f2d
xor eax, eax
lea rcx, [rsp + 0x20]
mov byte [rcx], al
inc eax
inc rcx
cmp eax, 0x100
jb 0x140020b6d
xor r10d, r10d
mov r9d, 0xff
xor cl, cl
xor ebx, ebx
lea r11d, [rbx + 1]
cmp r9d, r11d
jbe 0x140020b9e
lea r11d, [r11*2 + 1]
cmp r11d, r9d
jb 0x140020b91
movzx eax, cl
mov dl, byte [rsp + rax + 0x20]
mov eax, r10d
test r10d, r10d
je 0x140020bea
sub eax, 1
je 0x140020be0
sub eax, 1
je 0x140020bd6
cmp eax, 1
je 0x140020bcc
lea ecx, [r10 - 4]
lea rax, [fcn.1400429df]
mov al, byte [rcx + rax]
jmp 0x140020bef
cvttsd2si rax, xmm4
shr eax, 0x18
jmp 0x140020bef
cvttsd2si rax, xmm4
shr eax, 0x10
jmp 0x140020bef
cvttsd2si rax, xmm4
shr eax, 8
jmp 0x140020bef
cvttsd2si rax, xmm4
add al, dl
lea r8d, [r10 + 1]
movzx edx, al
cmp r8d, 0x1c
lea eax, [rdx + 0x1c]
movzx ecx, al
cmovb ecx, edx
sbb r10d, r10d
movzx r14d, cl
and r10d, r8d
mov eax, r14d
inc ebx
and eax, r11d
cmp ebx, 0xb
jbe 0x140020c23
xor edx, edx
div r9d
mov eax, edx
mov cl, r14b
cmp eax, r9d
ja 0x140020b9e
je 0x140020c4e
mov edx, eax
mov ecx, r9d
mov al, byte [rsp + rdx + 0x20]
xor byte [rsp + rcx + 0x20], al
mov al, byte [rsp + rcx + 0x20]
xor byte [rsp + rdx + 0x20], al
mov al, byte [rsp + rdx + 0x20]
xor byte [rsp + rcx + 0x20], al
mov cl, r14b
add r9d, 0xffffffff
jne 0x140020b86
movzx r10d, byte [rsp + r14 + 0x20]
lea rsi, [fcn.1400429a5]
movzx edx, byte [rsp + 0x27]
movzx r15d, byte [rsp + 0x21]
mov r13b, byte [rsp + 0x23]
movzx r11d, byte [rsp + r10 + 0x20]
mov r12b, byte [rsp + 0x25]
add r13b, byte [rsp + r15 + 0x20]
inc r15b
mov bl, byte [rsi]
mov cl, byte [rsi + 1]
add bl, 3
mov r14b, byte [rsi + 3]
add cl, 0x7b
movzx r9d, r13b
add r14b, 0x7b
shl bl, 4
add r13b, r11b
or bl, cl
mov qword [rbp + 0x78], reloc.WS2_32.dll_listen
movzx ecx, r15b
inc r15b
mov al, byte [rsp + r9 + 0x20]
mov byte [rsp + r10 + 0x20], al
mov al, byte [rsp + rdx + 0x20]
mov byte [rsp + r9 + 0x20], al
mov al, byte [rsp + rcx + 0x20]
mov byte [rsp + rdx + 0x20], al
mov byte [rsp + rcx + 0x20], r11b
add r12b, byte [rsp + r11 + 0x20]
movzx eax, r12b
movzx ecx, byte [rsp + rax + 0x20]
movzx eax, byte [rsp + r10 + 0x20]
add rcx, rax
movzx r10d, r13b
movzx eax, byte [rsp + rdx + 0x20]
add rcx, rax
movzx eax, cl
movzx ecx, byte [rsp + rax + 0x20]
movzx eax, byte [rsp + r9 + 0x20]
add rax, r11
movzx r9d, bl
movzx eax, al
mov dl, byte [rsp + rcx + 0x20]
movzx ecx, r15b
xor dl, byte [rsp + rax + 0x20]
lea rax, [rsi + 2]
mov rsi, rax
xor dl, bl
mov al, byte [rax]
movzx ebx, byte [rsp + r9 + 0x20]
add al, 3
shl al, 4
or r14b, al
movzx r8d, dl
mov al, byte [rsp + r10 + 0x20]
mov byte [rsp + r9 + 0x20], al
mov byte [rbp + 0x70], bl
mov al, byte [rsp + r8 + 0x20]
mov byte [rsp + r10 + 0x20], al
mov al, byte [rsp + rcx + 0x20]
mov byte [rsp + r8 + 0x20], al
mov byte [rsp + rcx + 0x20], bl
add r12b, byte [rsp + rbx + 0x20]
movzx eax, r12b
movzx ecx, byte [rsp + rax + 0x20]
movzx eax, byte [rsp + r8 + 0x20]
mov r8b, byte [rbp + 0x70]
add rcx, rax
movzx eax, byte [rsp + r9 + 0x20]
add rcx, rax
movzx eax, cl
movzx ecx, byte [rsp + rax + 0x20]
movzx eax, byte [rsp + r10 + 0x20]
add rax, rbx
mov ebx, 1
movzx eax, al
mov dl, byte [rsp + rcx + 0x20]
xor dl, byte [rsp + rax + 0x20]
xor dl, r14b
mov byte [rdi], dl
jmp 0x140020db0
mov r14b, cl
add r13b, r8b
movzx r10d, r14b
movzx r8d, dl
lea rsi, [rsi + 2]
mov al, byte [rsi]
inc r15b
mov r11b, byte [rsi + 1]
add al, 3
movzx r14d, byte [rsp + r10 + 0x20]
add r11b, 0x7b
shl al, 4
inc rbx
or r11b, al
movzx r9d, r13b
movzx ecx, r15b
mov al, byte [rsp + r9 + 0x20]
mov byte [rsp + r10 + 0x20], al
mov al, byte [rsp + r8 + 0x20]
mov byte [rsp + r9 + 0x20], al
mov al, byte [rsp + rcx + 0x20]
mov byte [rsp + r8 + 0x20], al
mov byte [rsp + rcx + 0x20], r14b
add r12b, byte [rsp + r14 + 0x20]
movzx eax, r12b
movzx ecx, byte [rsp + rax + 0x20]
movzx eax, byte [rsp + r8 + 0x20]
add rcx, rax
movzx eax, byte [rsp + r10 + 0x20]
add rcx, rax
movzx eax, cl
movzx ecx, byte [rsp + rax + 0x20]
movzx eax, byte [rsp + r9 + 0x20]
add rax, r14
movzx eax, al
mov dl, byte [rsp + rcx + 0x20]
mov cl, r11b
xor dl, byte [rsp + rax + 0x20]
xor dl, r11b
test rbx, rbx
jle 0x140020e52
mov byte [rdi + rbx - 1], dl
sub qword [rbp + 0x78], 1
mov r8b, r14b
jne 0x140020dad
mov ebx, recv
lea rsi, [fcn.1400429a5]
add rsi, 0x1c
mov qword [rbp + 0x78], rbx
movzx r10d, cl
lea rsi, [rsi + 2]
mov al, byte [rsi + 1]
add r13b, r14b
mov r11b, byte [rsi]
add al, 0x7b
movzx r8d, dl
add r11b, 3
movzx r9d, r13b
inc r15b
movzx ecx, r15b
inc rbx
shl r11b, 4
or r11b, al
mov al, byte [rsp + r10 + 0x20]
mov byte [rbp + 0x70], al
mov al, byte [rsp + r9 + 0x20]
movzx r14d, byte [rbp + 0x70]
mov byte [rsp + r10 + 0x20], al
mov al, byte [rsp + r8 + 0x20]
mov byte [rsp + r9 + 0x20], al
mov al, byte [rsp + rcx + 0x20]
mov byte [rsp + r8 + 0x20], al
mov byte [rsp + rcx + 0x20], r14b
add r12b, byte [rsp + r14 + 0x20]
movzx eax, r12b
movzx ecx, byte [rsp + rax + 0x20]
movzx eax, byte [rsp + r8 + 0x20]
add rcx, rax
movzx eax, byte [rsp + r10 + 0x20]
add rcx, rax
movzx eax, cl
movzx ecx, byte [rsp + rax + 0x20]
movzx eax, byte [rsp + r9 + 0x20]
add rax, r14
movzx eax, al
mov dl, byte [rsp + rcx + 0x20]
mov cl, r11b
xor dl, byte [rsp + rax + 0x20]
xor dl, r11b
test rbx, rbx
jle 0x140020f1e
mov byte [rdi + rbx - 1], dl
sub qword [rbp + 0x78], 1
jne 0x140020e74
mov byte [rdi + 0x1c], 0
lea r11, [rsp + 0x130]
mov rax, rdi
mov rbx, qword [r11 + 0x50]
movaps xmm6, xmmword [r11 - 0x10]
mov rsp, r11
pop r15
pop r14
pop r13
pop r12
pop rdi
pop rsi
pop rbp
ret