Function at 0x18003bab0
Capabilities:
Encode data using xor
Encrypt data using rc4 ksa

Disassembly:
mov qword [rsp + 8], rcx
push rbx
push rsi
push r15
sub rsp, 0x20
mov r15, rcx
xor esi, esi
mov rcx, qword [rcx]
mov rbx, rdx
mov dword [rsp + 0x50], esi
cmp dword [r15 + 0x14], esi
jle 0x18003c14c
mov qword [rsp + 0x48], rbp
mov qword [rsp + 0x18], rdi
mov qword [rsp + 0x10], r12
mov qword [rsp + 8], r13
mov qword [rsp], r14
nop
movsxd rax, dword [r15 + 0x1c]
mov r14, rcx
mov r13d, dword [r14]
lea rcx, [rcx + rax*4]
dec r13d
mov qword [rsp + 0x58], rcx
test r13d, r13d
jle 0x18003c124
mov edx, dword [r15 + 0xc]
add r14, 4
mov r11, qword [rbx + 8]
add edx, esi
mov rdi, qword [rbx]
xor r8d, r8d
movsxd rax, edx
sub edx, dword [rbx + 0x18]
mov r9d, dword [r14]
movsxd rcx, dword [rdi + 0x14]
imul rcx, rax
mov eax, edx
add rcx, qword [rdi]
cdq
mov qword [rbx + 0x20], rcx
idiv dword [r11 + 0x20]
movsxd rax, dword [r11 + 0x14]
movsxd rcx, edx
imul rcx, rax
add rcx, qword [r11]
sub r13d, 1
mov qword [rbx + 0x28], rcx
js 0x18003bf74
nop
mov ebp, dword [r14 + 4]
lea r14, [r14 + 8]
mov r15d, dword [r14]
mov eax, r15d
cdq
movzx edi, dl
add edi, eax
mov eax, r9d
cdq
sar edi, 8
movzx edx, dl
add eax, edx
sar eax, 8
mov ecx, eax
cmp edi, eax
jne 0x18003bb9a
mov eax, r15d
sub eax, r9d
imul eax, ebp
add r8d, eax
jmp 0x18003bf57
movzx eax, r9b
mov edx, 0x100
sub edx, eax
imul edx, ebp
lea eax, [r8 + rdx]
cdq
movzx edx, dl
add eax, edx
sar eax, 8
mov r11d, eax
test eax, eax
jle 0x18003bd6d
mov rax, qword [rbx]
mov r9d, dword [rbx + 0x14]
mov r8, qword [rbx + 8]
mov edx, dword [rax + 0x18]
mov eax, ecx
sub eax, r9d
imul edx, ecx
cmp r11d, 0xff
jl 0x18003bca8
movsxd r11, edx
cdq
idiv dword [r8 + 0x1c]
mov rax, qword [rbx + 0x28]
imul edx, dword [r8 + 0x18]
add r11, qword [rbx + 0x20]
movsxd r8, edx
movzx edx, byte [r8 + rax]
mov r8d, 0x100
mov r10d, edx
shl r10d, 0x10
or r10d, edx
mov edx, 0x100
imul r10d, dword [rbx + 0x10]
shr r10d, 8
and r10d, 0xff00ff
mov eax, r10d
shr eax, 0x10
sub edx, eax
mov eax, dword [r11]
mov r9d, eax
shr eax, 8
and eax, 0xff00ff
and r9d, 0xff00ff
imul eax, edx
imul r9d, edx
mov edx, 0x100
shr eax, 8
and eax, 0xff00ff
shr r9d, 8
and r9d, 0xff00ff
add r9d, r10d
add r10d, eax
mov eax, r10d
shl r10d, 8
shr eax, 8
and eax, 0xff00ff
sub r8d, eax
mov eax, r9d
shl r8d, 8
shr eax, 8
or r8d, r10d
and eax, 0xff00ff
and r8d, 0xff00ff00
sub edx, eax
or edx, r9d
and edx, 0xff00ff
xor edx, r8d
mov dword [r11], edx
jmp 0x18003bd6d
imul r11d, dword [rbx + 0x10]
movsxd r10, edx
cdq
idiv dword [r8 + 0x1c]
mov rax, qword [rbx + 0x28]
imul edx, dword [r8 + 0x18]
add r10, qword [rbx + 0x20]
sar r11d, 8
movsxd r8, edx
movzx edx, byte [r8 + rax]
mov r8d, 0x100
mov eax, edx
shl eax, 0x10
or eax, edx
mov edx, 0x100
imul r11d, eax
shr r11d, 8
and r11d, 0xff00ff
mov eax, r11d
shr eax, 0x10
sub edx, eax
mov eax, dword [r10]
mov r9d, eax
shr eax, 8
and eax, 0xff00ff
and r9d, 0xff00ff
imul eax, edx
imul r9d, edx
mov edx, 0x100
shr eax, 8
and eax, 0xff00ff
shr r9d, 8
and r9d, 0xff00ff
add r9d, r11d
add r11d, eax
mov eax, r11d
shl r11d, 8
shr eax, 8
and eax, 0xff00ff
sub r8d, eax
mov eax, r9d
shl r8d, 8
shr eax, 8
or r8d, r11d
and eax, 0xff00ff
and r8d, 0xff00ff00
sub edx, eax
or edx, r9d
and edx, 0xff00ff
xor edx, r8d
mov dword [r10], edx
test ebp, ebp
jle 0x18003bf4f
inc ecx
sub edi, ecx
test edi, edi
jle 0x18003bf4f
mov rax, qword [rbx]
mov esi, ebp
imul esi, dword [rbx + 0x10]
movsxd rdx, dword [rax + 0x18]
mov eax, edx
imul eax, ecx
sub ecx, dword [rbx + 0x14]
sar esi, 8
movsxd r11, eax
add r11, qword [rbx + 0x20]
cmp esi, 0xfe
jge 0x18003be82
mov r12, rdx
nop
mov r8, qword [rbx + 8]
mov eax, ecx
cdq
inc ecx
dec edi
idiv dword [r8 + 0x1c]
mov rax, qword [rbx + 0x28]
imul edx, dword [r8 + 0x18]
movsxd rdx, edx
movzx r8d, byte [rdx + rax]
mov edx, 0x100
mov r10d, r8d
shl r10d, 0x10
or r10d, r8d
mov r8d, 0x100
imul r10d, esi
shr r10d, 8
and r10d, 0xff00ff
mov eax, r10d
shr eax, 0x10
sub edx, eax
mov eax, dword [r11]
mov r9d, eax
shr eax, 8
and eax, 0xff00ff
and r9d, 0xff00ff
imul eax, edx
imul r9d, edx
mov edx, 0x100
shr eax, 8
and eax, 0xff00ff
shr r9d, 8
and r9d, 0xff00ff
add r9d, r10d
add r10d, eax
mov eax, r10d
shl r10d, 8
shr eax, 8
and eax, 0xff00ff
sub r8d, eax
mov eax, r9d
shl r8d, 8
shr eax, 8
or r8d, r10d
and eax, 0xff00ff
and r8d, 0xff00ff00
sub edx, eax
or edx, r9d
and edx, 0xff00ff
xor edx, r8d
mov dword [r11], edx
add r11, r12
test edi, edi
jg 0x18003bdb0
jmp 0x18003bf4f
mov rsi, rdx
nop word [rax + rax]
mov r8, qword [rbx + 8]
mov eax, ecx
mov r9d, dword [r11]
cdq
mov r10d, r9d
inc ecx
shr r9d, 8
and r10d, 0xff00ff
idiv dword [r8 + 0x1c]
mov rax, qword [rbx + 0x28]
and r9d, 0xff00ff
imul edx, dword [r8 + 0x18]
dec edi
movsxd rdx, edx
movzx r8d, byte [rdx + rax]
mov eax, 0x100
sub eax, r8d
mov edx, r8d
imul r9d, eax
imul r10d, eax
shl edx, 0x10
or edx, r8d
mov r8d, 0x100
shr r9d, 8
and r9d, 0xff00ff
shr r10d, 8
add r9d, edx
and r10d, 0xff00ff
add r10d, edx
mov eax, r9d
shr eax, 8
mov edx, 0x100
and eax, 0xff00ff
shl r9d, 8
sub r8d, eax
mov eax, r10d
shl r8d, 8
shr eax, 8
or r8d, r9d
and eax, 0xff00ff
and r8d, 0xff00ff00
sub edx, eax
or edx, r10d
and edx, 0xff00ff
xor edx, r8d
mov dword [r11], edx
add r11, rsi
test edi, edi
jg 0x18003be90
movzx r8d, r15b
imul r8d, ebp
sub r13d, 1
mov r9d, r15d
jns 0x18003bb60
mov rdi, qword [rbx]
mov r11, qword [rbx + 8]
mov esi, dword [rsp + 0x50]
mov r15, qword [rsp + 0x40]
mov eax, r8d
cdq
movzx edx, dl
add eax, edx
sar eax, 8
mov r10d, eax
test eax, eax
jle 0x18003c11f
mov ecx, dword [rdi + 0x18]
mov eax, r9d
cdq
movzx edx, dl
add eax, edx
mov edx, dword [rbx + 0x14]
sar eax, 8
imul ecx, eax
sub eax, edx
cdq
idiv dword [r11 + 0x1c]
mov rax, qword [rbx + 0x28]
imul edx, dword [r11 + 0x18]
cmp r10d, 0xff
jl 0x18003c06e
movsxd r10, ecx
add r10, qword [rbx + 0x20]
movsxd rcx, edx
movzx edx, byte [rcx + rax]
mov ecx, 0x100
mov r9d, edx
shl r9d, 0x10
or r9d, edx
mov edx, 0x100
imul r9d, dword [rbx + 0x10]
shr r9d, 8
and r9d, 0xff00ff
mov eax, r9d
shr eax, 0x10
sub ecx, eax
mov eax, dword [r10]
mov r8d, eax
shr eax, 8
and eax, 0xff00ff
and r8d, 0xff00ff
imul eax, ecx
imul r8d, ecx
mov ecx, 0x100
shr eax, 8
and eax, 0xff00ff
shr r8d, 8
and r8d, 0xff00ff
add r8d, r9d
add r9d, eax
mov eax, r9d
shl r9d, 8
shr eax, 8
and eax, 0xff00ff
sub edx, eax
mov eax, r8d
shl edx, 8
shr eax, 8
or edx, r9d
and eax, 0xff00ff
and edx, 0xff00ff00
sub ecx, eax
or ecx, r8d
and ecx, 0xff00ff
xor ecx, edx
mov dword [r10], ecx
jmp 0x18003c11f
imul r10d, dword [rbx + 0x10]
movsxd r9, ecx
add r9, qword [rbx + 0x20]
movsxd rcx, edx
sar r10d, 8
movzx edx, byte [rcx + rax]
mov ecx, 0x100
mov eax, edx
shl eax, 0x10
or eax, edx
mov edx, 0x100
imul r10d, eax
shr r10d, 8
and r10d, 0xff00ff
mov eax, r10d
shr eax, 0x10
sub ecx, eax
mov eax, dword [r9]
mov r8d, eax
shr eax, 8
and eax, 0xff00ff
and r8d, 0xff00ff
imul eax, ecx
imul r8d, ecx
mov ecx, 0x100
shr eax, 8
and eax, 0xff00ff
shr r8d, 8
and r8d, 0xff00ff
add r8d, r10d
add r10d, eax
mov eax, r10d
shl r10d, 8
shr eax, 8
and eax, 0xff00ff
sub edx, eax
mov eax, r8d
shl edx, 8
shr eax, 8
or edx, r10d
and eax, 0xff00ff
and edx, 0xff00ff00
sub ecx, eax
or ecx, r8d
and ecx, 0xff00ff
xor ecx, edx
mov dword [r9], ecx
mov rcx, qword [rsp + 0x58]
inc esi
mov dword [rsp + 0x50], esi
cmp esi, dword [r15 + 0x14]
jl 0x18003baf0
mov r14, qword [rsp]
mov r13, qword [rsp + 8]
mov r12, qword [rsp + 0x10]
mov rdi, qword [rsp + 0x18]
mov rbp, qword [rsp + 0x48]
add rsp, 0x20
pop r15
pop rsi
pop rbx
ret