Function at 0x1400872f0
Capabilities:
Encrypt data using rc4 prga

Disassembly:
mov qword [rsp + 0x10], rbx
mov qword [rsp + 0x18], rbp
mov qword [rsp + 0x20], rsi
push rdi
push r12
push r15
sub rsp, 0x20
mov r10, qword [rcx]
mov r15d, r8d
mov rsi, qword [rcx + 8]
mov rbx, rcx
mov ebp, edx
mov rdi, qword [r10 + 0x20]
cmp rsi, qword [rcx + 0x10]
jae 0x140087567
movzx r9d, byte [rdi + rbp*8 + 5]
cmp r9b, 0x5b
jne 0x140087385
movzx eax, byte [rdi + rbp*8 + 2]
and al, 0x1f
cmp al, 0x13
jne 0x1400873ed
mov eax, dword [rbx + 0x18]
movzx ecx, word [rdi + rbp*8]
and eax, 0xf000
cmp eax, 0x1000
ja 0x140087362
mov edx, ecx
inc r8d
mov rcx, rbx
call fcn.1400871e0
jmp 0x140087369
mov dword [rsi], ecx
add qword [rbx + 8], 4
cmp dword [rbx + 0x1c], 0x15
jne 0x14008737e
mov rax, qword [rbx + 8]
mov dword [rax], 0x20000
add qword [rbx + 8], 4
xor eax, eax
jmp 0x14008749c
cmp r9b, 0x1c
jne 0x1400873ed
test dword [rcx + 0x18], 0xf000
movsd xmm1, qword [rdi + rbp*8 + 8]
jne 0x1400873d4
cvttsd2si rcx, xmm1
xorps xmm0, xmm0
cvtsi2sd xmm0, rcx
ucomisd xmm1, xmm0
jp 0x140087567
jne 0x140087567
mov dword [rsi], 0x30000
add qword [rbx + 8], 4
mov rax, qword [rbx + 8]
mov dword [rax], ecx
add qword [rbx + 8], 4
xor eax, eax
jmp 0x14008749c
cvttsd2si ecx, xmm1
movsx eax, cx
cmp ecx, eax
jne 0x140087567
movd xmm0, ecx
cvtdq2pd xmm0, xmm0
jmp 0x1400873a7
movzx r11d, byte [r10 + 0xbd]
movzx r8d, word [r10 + r11*2 + 0x192]
cmp r8d, ebp
jbe 0x140087448
movzx eax, word [rdi + r8*8]
cmp eax, ebp
jne 0x14008743d
cmp r11b, 0x5c
je 0x1400874b5
movzx eax, word [rdi + r8*8 + 2]
xor eax, dword [rbx + 0x18]
test eax, 0xfff
jne 0x14008743d
movzx ecx, byte [rdi + r8*8 + 4]
movzx eax, byte [r10 + 0xbc]
and cl, 0x80
and al, 0x80
cmp cl, al
jae 0x1400874b5
movzx r8d, word [rdi + r8*8 + 6]
cmp r8d, ebp
ja 0x140087403
sub r9b, 0x29
mov qword [rsp + 0x40], r14
cmp r9b, 1
ja 0x14008754c
mov r8d, dword [rbx + 0x18]
mov eax, r8d
and eax, 0xf000
cmp eax, 0x2000
jne 0x14008747a
test r15d, r15d
jle 0x14008747a
add r8d, 0x1000
movzx edx, bp
mov rcx, r10
call fcn.1400871a0
test rax, rax
je 0x1400874c1
movzx eax, word [rax + 2]
mov dword [rsi], eax
add qword [rbx + 8], 4
xor eax, eax
mov r14, qword [rsp + 0x40]
mov rbx, qword [rsp + 0x48]
mov rbp, qword [rsp + 0x50]
mov rsi, qword [rsp + 0x58]
add rsp, 0x20
pop r15
pop r12
pop rdi
ret
mov dword [rsi], r8d
add qword [rbx + 8], 4
xor eax, eax
jmp 0x14008749c
cmp dword [rbx + 0x1c], 0x15
jne 0x1400874f1
mov r8d, 0x226e
mov rcx, r10
call fcn.1400871a0
test rax, rax
je 0x1400874f1
movzx eax, word [rax + 2]
mov dword [rsi], eax
add qword [rbx + 8], 4
mov rax, qword [rbx + 8]
mov dword [rax], 0x20000
jmp 0x140087490
inc r15d
cmp r15d, 0x64
jge 0x14008754c
movzx edx, word [rdi + rbp*8]
mov r8d, r15d
mov rcx, rbx
call fcn.1400872f0
movzx edx, word [rdi + rbp*8 + 2]
mov r8d, r15d
mov rcx, rbx
mov r14d, eax
call fcn.1400872f0
add r14d, eax
cmp r14d, 1
jg 0x140087548
movzx ecx, byte [rdi + rbp*8 + 5]
mov rax, qword [rbx + 8]
shl ecx, 8
or ecx, dword [rbx + 0x1c]
shl ecx, 0x10
add ecx, ebp
mov dword [rax], ecx
mov eax, r14d
add qword [rbx + 8], 4
jmp 0x140087497
mov qword [rbx + 8], rsi
mov rax, qword [rbx + 8]
lea ecx, [rbp + 0x10000]
mov dword [rax], ecx
mov eax, 1
add qword [rbx + 8], 4
jmp 0x140087497
mov eax, 0xa
jmp 0x14008749c