Function at 0x18030563a
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push r15
push r14
push r13
push r12
push rsi
push rdi
push rbp
push rbx
sub rsp, 0x48
mov rsi, r9
mov rdi, rcx
mov r14, qword [rsp + 0xb0]
movzx ebx, word [rcx + 8]
test r8, r8
je 0x180305680
mov r15, r8
mov rax, rdx
xor ebp, ebp
mov qword [rsp + 0x38], rdx
mov dword [rsp + 0x34], 0
mov qword [rsp + 0x40], rsi
jmp 0x180305824
xor eax, eax
movzx ecx, word [rdx + rax]
add rax, 2
cmp cx, bx
jae 0x180305694
test cx, cx
jne 0x180305682
lea r9, [rdx + rax]
add r9, 0xfffffffffffffffe
test rsi, rsi
je 0x1803056a7
cmp rax, 2
jne 0x1803056c2
cmp dword [r14], 0
jg 0x1803056e0
mov rcx, r9
xor edx, edx
mov r14, r9
call fcn.18018c97a
mov rdx, r14
mov r15, rax
jmp 0x180305664
mov rcx, rsi
mov r8, r9
mov r15, r9
mov r9, r14
call fcn.180255382
mov r9, r15
jmp 0x1803056a7
mov r9, r15
jmp 0x1803056e0
mov r9, r14
mov rax, r9
add rsp, 0x48
pop rbx
pop rbp
pop rdi
pop rsi
pop r12
pop r13
pop r14
pop r15
ret
cmp r9, r15
mov rsi, qword [rsp + 0x40]
mov r13, qword [rsp + 0xb0]
je 0x1803056d8
xor eax, eax
cmp r12d, 0x10000
setae al
lea rax, [r14 + rax*2]
add rax, 2
test rsi, rsi
jne 0x18030577e
mov r9, qword [rsp + 0x38]
jmp 0x1803057cf
mov r14, r13
jmp 0x180305731
mov r14, r15
cmp r14, r9
je 0x1803056f4
mov rsi, qword [rsp + 0x40]
test rsi, rsi
mov r13, qword [rsp + 0xb0]
je 0x1803057a7
mov rcx, rsi
mov rdx, r9
mov r8, r14
mov r9, r13
call fcn.180255382
cmp r14, r15
je 0x1803056dd
test al, al
je 0x1803056dd
xor eax, eax
cmp r12d, 0x10000
setae al
lea rax, [r14 + rax*2]
add rax, 2
mov qword [rsp + 0x20], r13
mov rcx, rdi
mov edx, r12d
mov r8d, ebp
mov r14, rax
mov r9, rsi
call fcn.180305936
mov r9, r14
test al, al
jne 0x180305827
jmp 0x1803056e0
cmp r14, r15
je 0x1803056d8
xor eax, eax
cmp r12d, 0x10000
setae al
lea rax, [r14 + rax*2]
add rax, 2
mov dword [rsp + 0x34], 0
mov r9, r14
cmp word [rdi + 0xe], bp
ja 0x1803057df
cmp word [rdi + 0x1e], bp
ja 0x1803056e0
movzx ecx, bp
mov edx, ecx
shr edx, 1
cmp ecx, 0xfc00
mov ecx, 0
cmovb edx, ecx
cmp byte [rsp + 0x34], dl
setbe cl
test dl, dl
sete r8b
or r8b, cl
mov rcx, r9
cmovne rcx, rax
cmp dl, 2
cmovae rcx, r9
mov qword [rsp + 0x38], rcx
mov dword [rsp + 0x34], edx
test r8b, r8b
je 0x1803056e0
mov r9, rax
cmp r9, r15
je 0x1803056d8
mov r13, r9
jmp 0x180305848
add r13, 2
mov r14, r13
mov r13, r14
cmp r14, r15
je 0x18030572e
movzx r12d, word [r13]
cmp r12w, bx
jb 0x180305835
mov rcx, qword [rdi + 0x20]
mov rax, qword [rcx]
mov rsi, qword [rcx + 8]
mov edx, r12d
shr edx, 6
movzx eax, word [rax + rdx*2]
mov edx, r12d
and edx, 0x3f
add rdx, rax
movzx ebp, word [rsi + rdx*2]
movzx edx, word [rdi + 0xe]
cmp dx, bp
ja 0x180305835
mov eax, ebp
and eax, 0xfdff
movzx eax, ax
cmp eax, 0xfc00
je 0x180305835
mov eax, r12d
and eax, 0xfc00
cmp eax, 0xd800
jne 0x180305729
lea r14, [r13 + 2]
cmp r14, r15
je 0x18030572e
movzx eax, word [r14]
mov r8d, eax
and r8d, 0xfc00
cmp r8d, 0xdc00
jne 0x18030583c
shl r12d, 0xa
add r12d, eax
add r12d, 0xfca02400
cmp r12d, dword [rcx + 0x18]
jl 0x1803058e6
mov eax, dword [rcx + 0x14]
add eax, 0xfffffffe
jmp 0x1803058f8
mov edx, r12d
mov r14, r9
call fcn.1801a22e3
mov r9, r14
movzx edx, word [rdi + 0xe]
cdqe
movzx ebp, word [rsi + rax*2]
cmp dx, bp
setbe al
mov ecx, ebp
and ecx, 0xfdff
cmp ecx, 0xfc00
setne cl
and cl, al
mov eax, ecx
xor al, 1
movzx eax, al
lea r14, [rax*4]
add r14, r13
test cl, cl
je 0x18030583c
jmp 0x180305731