Function at 0x499e70
Capabilities:
Encrypt data using rc4 prga

Disassembly:
mov rcx, qword gs:[0x28]
mov rcx, qword [rcx]
cmp rsp, qword [rcx + 0x10]
jbe 0x49a255
sub rsp, 0x70
mov qword [rsp + 0x68], rbp
lea rbp, [rsp + 0x68]
mov rax, qword [rsp + 0x78]
mov rcx, qword [rsp + 0x80]
xor edx, edx
xor ebx, ebx
mov rsi, rdx
mov rdi, rsi
xor r8d, r8d
jmp 0x499ecb
dec rcx
mov r9, rcx
neg rcx
sar rcx, 0x3f
and rcx, 1
add rax, rcx
mov rcx, r9
test rcx, rcx
jle 0x49a1fa
mov qword [rsp + 0x78], rax
mov qword [rsp + 0x80], rcx
mov byte [rsp + 0x46], r8b
movzx r9d, byte [rax]
mov byte [rsp + 0x47], r9b
cmp r9b, 0x20
jbe 0x49a15e
cmp r9b, 0x22
je 0x499fb4
cmp r9b, 0x5c
jne 0x499f17
inc rdi
cmp rcx, 1
jae 0x499eb4
jmp 0x49a24e
mov qword [rsp], rbx
mov qword [rsp + 8], rdx
mov qword [rsp + 0x10], rsi
mov qword [rsp + 0x18], rdi
call fcn.00499da0
mov rax, qword [rsp + 0x20]
mov rcx, qword [rsp + 0x28]
mov rdx, qword [rsp + 0x30]
lea rbx, [rcx + 1]
cmp rbx, rdx
jg 0x499f71
movzx r9d, byte [rsp + 0x47]
mov byte [rax + rcx], r9b
mov rcx, qword [rsp + 0x80]
mov rsi, rdx
mov rdx, rbx
mov rbx, rax
xor edi, edi
movzx r8d, byte [rsp + 0x46]
mov rax, qword [rsp + 0x78]
jmp 0x499f0c
mov qword [rsp + 0x50], rcx
lea rsi, [0x007df620]
mov qword [rsp], rsi
mov qword [rsp + 8], rax
mov qword [rsp + 0x10], rcx
mov qword [rsp + 0x18], rdx
mov qword [rsp + 0x20], rbx
call fcn.0043d870
mov rax, qword [rsp + 0x28]
mov rcx, qword [rsp + 0x30]
mov rdx, qword [rsp + 0x38]
lea rbx, [rcx + 1]
mov rcx, qword [rsp + 0x50]
jmp 0x499f47
mov qword [rsp + 0x48], rdi
mov rax, rdi
sar rdi, 0x3f
shr rdi, 0x3f
lea rcx, [rax + rdi]
sar rcx, 1
mov qword [rsp + 0x58], rcx
mov qword [rsp + 0x18], rcx
mov qword [rsp], rbx
mov qword [rsp + 8], rdx
mov qword [rsp + 0x10], rsi
call fcn.00499da0
mov rax, qword [rsp + 0x20]
mov rcx, qword [rsp + 0x28]
mov qword [rsp + 0x50], rcx
mov rdx, qword [rsp + 0x30]
mov rbx, qword [rsp + 0x58]
shl rbx, 1
mov rsi, qword [rsp + 0x48]
sub rsi, rbx
test rsi, rsi
jne 0x49a0f4
movzx ebx, byte [rsp + 0x46]
test bl, bl
je 0x49a0e5
mov rsi, qword [rsp + 0x80]
cmp rsi, 1
jle 0x49a0de
mov rdi, qword [rsp + 0x78]
movzx r8d, byte [rdi + 1]
lea r9, [rdi + 1]
cmp r8b, 0x22
jne 0x49a0d1
lea rdi, [rcx + 1]
cmp rdi, rdx
jg 0x49a07c
movzx r8d, byte [rsp + 0x47]
mov byte [rax + rcx], r8b
lea rcx, [rsi - 1]
xor ebx, 1
mov rsi, rdx
mov rdx, rdi
xor edi, edi
mov r8d, ebx
mov rbx, rax
mov rax, r9
jmp 0x499f0c
mov qword [rsp + 0x60], r9
lea rbx, [0x007df620]
mov qword [rsp], rbx
mov qword [rsp + 8], rax
mov qword [rsp + 0x10], rcx
mov qword [rsp + 0x18], rdx
mov qword [rsp + 0x20], rdi
call fcn.0043d870
mov rax, qword [rsp + 0x28]
mov rcx, qword [rsp + 0x30]
mov rdx, qword [rsp + 0x38]
lea rdi, [rcx + 1]
mov rcx, qword [rsp + 0x50]
movzx ebx, byte [rsp + 0x46]
mov rsi, qword [rsp + 0x80]
mov r9, qword [rsp + 0x60]
jmp 0x49a055
mov r9, rdi
mov rcx, rsi
mov rdi, qword [rsp + 0x50]
jmp 0x49a063
mov rdi, qword [rsp + 0x78]
jmp 0x49a0d1
mov rsi, qword [rsp + 0x80]
mov rdi, qword [rsp + 0x78]
jmp 0x49a0d1
lea rbx, [rcx + 1]
cmp rbx, rdx
jg 0x49a120
movzx esi, byte [rsp + 0x47]
mov byte [rax + rcx], sil
mov rcx, qword [rsp + 0x80]
mov r9, qword [rsp + 0x78]
mov rdi, rbx
movzx ebx, byte [rsp + 0x46]
jmp 0x49a066
lea rsi, [0x007df620]
mov qword [rsp], rsi
mov qword [rsp + 8], rax
mov qword [rsp + 0x10], rcx
mov qword [rsp + 0x18], rdx
mov qword [rsp + 0x20], rbx
call fcn.0043d870
mov rax, qword [rsp + 0x28]
mov rcx, qword [rsp + 0x30]
mov rdx, qword [rsp + 0x38]
lea rbx, [rcx + 1]
mov rcx, qword [rsp + 0x50]
jmp 0x49a0fd
cmp r9b, 9
jne 0x49a1eb
test r8b, r8b
jne 0x499f17
mov qword [rsp], rbx
mov qword [rsp + 8], rdx
mov qword [rsp + 0x10], rsi
mov qword [rsp + 0x18], rdi
call fcn.00499da0
mov rax, qword [rsp + 0x20]
mov rcx, qword [rsp + 0x28]
mov rdx, qword [rsp + 0x30]
mov qword [rsp + 0x88], rax
mov qword [rsp + 0x90], rcx
mov qword [rsp + 0x98], rdx
mov rax, qword [rsp + 0x80]
dec rax
mov rcx, rax
neg rax
sar rax, 0x3f
and rax, 1
mov rdx, qword [rsp + 0x78]
add rax, rdx
mov qword [rsp + 0xa0], rax
mov qword [rsp + 0xa8], rcx
mov rbp, qword [rsp + 0x68]
add rsp, 0x70
ret
cmp r9b, 0x20
je 0x49a168
jmp 0x499f17
mov qword [rsp], rbx
mov qword [rsp + 8], rdx
mov qword [rsp + 0x10], rsi
mov qword [rsp + 0x18], rdi
call fcn.00499da0
mov rax, qword [rsp + 0x20]
mov rcx, qword [rsp + 0x28]
mov rdx, qword [rsp + 0x30]
mov qword [rsp + 0x88], rax
mov qword [rsp + 0x90], rcx
mov qword [rsp + 0x98], rdx
xorps xmm0, xmm0
movups xmmword [rsp + 0xa0], xmm0
mov rbp, qword [rsp + 0x68]
add rsp, 0x70
ret
call fcn.00429340
ud2
call fcn.00451b80
jmp fcn.00499e70