Function at 0x180020c60
Capabilities:
Encrypt data using rc4 ksa

Disassembly:
push rbx
sub rsp, 0x20
xor r9d, r9d
mov rbx, rcx
call fcn.18001fac0
mov rcx, qword [rbx + 0x240]
test rcx, rcx
je 0x18001f932
mov rax, qword [rbx + 0x248]
mov qword [rbx + 0x240], rax
mov qword [rbx + 0x248], rcx
inc dword [rbx + 0x234]
mov eax, dword [rbx + 0x234]
cmp eax, dword [rbx + 0x220]
jb 0x18001fa8e
cmp byte [rbx + 0x284], 0
je 0x18001fa7b
test byte [rbx + 0x16c], 2
mov dword [rbx + 0x234], 0
je 0x18001f97d
inc byte [rbx + 0x285]
movzx r11d, byte [rbx + 0x285]
jmp 0x18001fa14
movzx eax, byte [rbx + 0x285]
mov qword [rsp + 0x30], rdi
lea rdi, [0x180000000]
lea r11d, [rax + 1]
mov byte [rbx + 0x285], r11b
cmp r11b, 7
jae 0x18001fa0f
xor edx, edx
movzx r10d, r11b
movzx r8d, byte [r10 + rdi + 0x29768]
movzx eax, byte [r10 + rdi + 0x29760]
mov ecx, r8d
sub ecx, eax
mov eax, dword [rbx + 0x218]
dec eax
add eax, ecx
movzx ecx, byte [r10 + rdi + 0x29770]
div r8d
movzx r8d, byte [r10 + rdi + 0x29778]
mov r9d, eax
mov dword [rbx + 0x224], eax
mov eax, dword [rbx + 0x21c]
mov edx, r8d
sub edx, ecx
dec eax
add eax, edx
xor edx, edx
div r8d
mov dword [rbx + 0x220], eax
mov ecx, eax
movzx eax, r11b
test r9d, r9d
je 0x18001f990
test ecx, ecx
je 0x18001f990
mov rdi, qword [rsp + 0x30]
cmp r11b, 7
jae 0x18001fa7b
mov r9, qword [rbx + 0x240]
test r9, r9
je 0x18001fa8e
movzx eax, byte [rbx + 0x289]
movzx ecx, byte [rbx + 0x28c]
mov r8d, eax
mov edx, dword [rbx + 0x218]
imul eax, ecx
imul r8, rcx
cmp eax, 8
jb 0x18001fa60
shr r8, 3
mov rcx, r9
imul r8, rdx
xor edx, edx
inc r8
call sub.VCRUNTIME140.dll_memset
jmp 0x18001fa8e
imul r8, rdx
xor edx, edx
mov rcx, r9
add r8, 7
shr r8, 3
inc r8
call sub.VCRUNTIME140.dll_memset
jmp 0x18001fa8e
mov r9d, 4
xor r8d, r8d
xor edx, edx
mov rcx, rbx
call fcn.18001fac0
mov eax, dword [rbx + 0x2bc]
mov ecx, dword [rbx + 0x2b8]
inc eax
mov dword [rbx + 0x2bc], eax
test ecx, ecx
je 0x18001fab7
cmp eax, ecx
jb 0x18001fab7
mov rcx, rbx
add rsp, 0x20
pop rbx
jmp sym.vtkpng_9.2.dll_vtkpng_png_write_flush
add rsp, 0x20
pop rbx
ret
mov qword [rsp + 0x10], rdx
mov qword [rsp + 8], rcx
push rbx
push rbp
push rdi
push r13
push r14
sub rsp, 0x60
mov r14, qword [rcx + 0x248]
movabs rax, 0x1ffffffffffffff
movzx ebp, byte [rdx + 0x13]
xor edi, edi
mov r9, qword [rdx + 8]
add ebp, 7
movzx r13d, byte [rcx + 0x286]
mov rbx, rcx
shr ebp, 3
mov r11, 0xfffffffffffffeff
mov dword [rsp + 0xa8], r13d
mov dword [rsp + 0xa0], ebp
mov qword [rsp + 0x20], r14
mov qword [rsp + 0x28], r14
cmp r9, rax
jb 0x180020cd8
mov eax, r13d
neg eax
and r13d, eax
mov dword [rsp + 0xa8], r13d
jmp 0x180020d13
test r13b, 8
je 0x180020d13
cmp r13d, 8
je 0x180020d13
mov r11, rdi
mov rdx, rdi
test r9, r9
je 0x180020d13
nop
movzx ecx, byte [r14 + rdx + 1]
mov eax, 0x100
sub eax, ecx
cmp ecx, 0x80
cmovae ecx, eax
inc rdx
mov eax, ecx
add r11, rax
cmp rdx, r9
jb 0x180020cf0
mov qword [rsp + 0x58], rsi
mov qword [rsp + 0x50], r12
mov qword [rsp + 0x48], r15
cmp r13d, 0x10
jne 0x180020ffe
mov r15, qword [rbx + 0x250]
lea r8, [r14 + 1]
mov r10d, ebp
mov rsi, rdi
mov rdx, r8
mov byte [r15], 1
lea rcx, [r15 + 1]
test ebp, ebp
je 0x180020d61
mov esi, r10d
nop
movzx eax, byte [rdx]
inc rdx
mov byte [rcx], al
inc rcx
sub r10, 1
jne 0x180020d50
mov r10, r9
sub r10, rsi
cmp rsi, r9
jae 0x180020e54
cmp r10, 0x40
jb 0x180020e27
lea rbp, [r9 - 1]
lea rax, [r9 - 1]
add rbp, rcx
add rax, r8
lea r14, [rcx + rsi]
lea r12, [r8 + rsi]
cmp r14, rax
ja 0x180020d9e
cmp rbp, r12
jae 0x180020e27
lea rax, [r9 - 1]
add rax, rdx
lea r12, [rdx + rsi]
cmp r14, rax
ja 0x180020db3
cmp rbp, r12
jae 0x180020e27
and r10d, 0x3f
mov rax, r9
sub rax, r10
nop dword [rax]
movdqu xmm0, xmmword [r8]
add rsi, 0x40
movdqu xmm1, xmmword [rdx]
psubb xmm1, xmm0
movdqu xmm0, xmmword [r8 + 0x10]
movdqu xmmword [rcx], xmm1
movdqu xmm1, xmmword [rdx + 0x10]
psubb xmm1, xmm0
movdqu xmm0, xmmword [r8 + 0x20]
movdqu xmmword [rcx + 0x10], xmm1
movdqu xmm1, xmmword [rdx + 0x20]
psubb xmm1, xmm0
movdqu xmm0, xmmword [r8 + 0x30]
add r8, 0x40
movdqu xmmword [rcx + 0x20], xmm1
movdqu xmm1, xmmword [rdx + 0x30]
add rdx, 0x40
psubb xmm1, xmm0
movdqu xmmword [rcx + 0x30], xmm1
add rcx, 0x40
cmp rsi, rax
jb 0x180020dc0
cmp rsi, r9
jae 0x180020e54
sub r8, rcx
sub rdx, rcx
mov r10, r9
sub r10, rsi
nop dword [rax]
nop word [rax + rax]
movzx eax, byte [rdx + rcx]
sub al, byte [r8 + rcx]
mov byte [rcx], al
lea rcx, [rcx + 1]
sub r10, 1
jne 0x180020e40
mov rdx, r15
test r13b, r13b
jns 0x180021401
mov r8, qword [rbx + 0x250]
mov rbp, rdi
mov r10, qword [rbx + 0x248]
mov rax, qword [rbx + 0x240]
inc r10
mov edx, dword [rsp + 0xa0]
inc rax
mov qword [rsp + 0x30], r8
lea r14, [r8 + 1]
mov byte [r8], 4
mov r12, rax
mov qword [rsp + 0xa8], r10
mov qword [rsp + 0x28], rax
mov qword [rsp + 0x20], r15
test rdx, rdx
je 0x180020ef7
mov ebp, edx
mov qword [rsp + 0x20], r15
nop dword [rax]
nop word [rax + rax]
movzx eax, byte [r10]
inc r10
sub al, byte [r12]
inc r12
movzx ecx, al
mov eax, 0x100
sub eax, ecx
mov byte [r14], cl
inc r14
cmp ecx, 0x80
cmovae ecx, eax
mov eax, ecx
add rdi, rax
sub rdx, 1
jne 0x180020ec0
mov rax, qword [rsp + 0x28]
cmp rbp, r9
jae 0x180020fcf
mov rbx, qword [rsp + 0xa8]
sub rax, rbx
sub r12, rbx
mov qword [rsp + 0x28], rax
sub r14, r10
nop word [rax + rax]
movzx eax, byte [rax + rbx]
movzx ecx, byte [r12 + rbx]
movzx esi, byte [rbx]
lea rbx, [rbx + 1]
mov dword [rsp + 0xa0], eax
mov r8d, ecx
sub r8d, eax
mov dword [rsp + 0xa8], ecx
mov ecx, esi
sub ecx, eax
mov eax, r8d
cdq
mov r15d, eax
mov eax, ecx
xor r15d, edx
sub r15d, edx
cdq
mov r13d, eax
lea eax, [rcx + r8]
xor r13d, edx
sub r13d, edx
cdq
xor eax, edx
sub eax, edx
cmp r15d, r13d
jg 0x180020f74
cmp r15d, eax
jle 0x180020f86
mov esi, dword [rsp + 0xa0]
cmp r13d, eax
cmovle esi, dword [rsp + 0xa8]
movzx eax, byte [r10]
sub al, sil
movzx ecx, al
mov eax, 0x100
sub eax, ecx
mov byte [r14 + r10], cl
inc r10
cmp ecx, 0x80
cmovae ecx, eax
mov eax, ecx
add rdi, rax
cmp rdi, r11
ja 0x180020fc2
mov rax, qword [rsp + 0x28]
inc rbp
cmp rbp, r9
jb 0x180020f20
mov rbx, qword [rsp + 0x90]
mov r8, qword [rsp + 0x30]
cmp rdi, r11
jae 0x1800213fc
mov rax, qword [rbx + 0x258]
mov rdx, r8
test rax, rax
je 0x180021401
mov qword [rbx + 0x250], rax
mov qword [rbx + 0x258], r8
jmp 0x180021401
test r13b, 0x10
je 0x1800210d3
mov r15, qword [rbx + 0x250]
inc r14
mov r8, rdi
mov rsi, rdi
mov r10, r14
mov byte [r15], 1
lea rdx, [r15 + 1]
test rbp, rbp
je 0x180021059
mov rsi, rbp
nop dword [rax + rax]
movzx eax, byte [r10]
mov ecx, eax
mov byte [rdx], al
mov eax, 0x100
sub eax, ecx
cmp ecx, 0x80
cmovae ecx, eax
inc r10
mov eax, ecx
inc rdx
add r8, rax
sub rbp, 1
jne 0x180021030
cmp rsi, r9
jae 0x180021097
sub r10, rdx
sub r14, rdx
movzx eax, byte [r10 + rdx]
sub al, byte [r14 + rdx]
movzx ecx, al
mov eax, 0x100
sub eax, ecx
mov byte [rdx], cl
cmp ecx, 0x80
cmovae ecx, eax
mov eax, ecx
add r8, rax
cmp r8, r11
ja 0x1800210c5
inc rdx
inc rsi
cmp rsi, r9
jb 0x180021064
cmp r8, r11
jae 0x1800210c5
mov rax, qword [rbx + 0x258]
mov r11, r8
mov r14, qword [rbx + 0x248]
mov rcx, r15
test rax, rax
je 0x1800210d6
mov qword [rbx + 0x250], rax
mov qword [rbx + 0x258], rcx
jmp 0x1800210d6
mov r14, qword [rbx + 0x248]
mov rcx, qword [rsp + 0x28]
jmp 0x1800210d6
mov rcx, r14
cmp r13d, 0x20
jne 0x1800211e9
mov r15, qword [rbx + 0x250]
lea r8, [r14 + 1]
mov rdx, qword [rbx + 0x240]
mov rsi, rdi
inc rdx
mov byte [r15], 2
lea rcx, [r15 + 1]
test r9, r9
je 0x180020e54
cmp r9, 0x40
jb 0x1800211bb
lea r10, [r9 - 1]
lea rax, [r9 - 1]
add r10, rcx
add rax, rdx
cmp rcx, rax
ja 0x18002112f
cmp r10, rdx
jae 0x1800211bb
lea rax, [r9 - 1]
add rax, r8
cmp rcx, rax
ja 0x180021140
cmp r10, r8
jae 0x1800211bb
mov rax, r9
and rax, 0xffffffffffffffc0
nop word [rax + rax]
movdqu xmm0, xmmword [rdx]
add rsi, 0x40
movdqu xmm1, xmmword [r8]
psubb xmm1, xmm0
movdqu xmm0, xmmword [rdx + 0x10]
movdqu xmmword [rcx], xmm1
movdqu xmm1, xmmword [r8 + 0x10]
psubb xmm1, xmm0
movdqu xmm0, xmmword [rdx + 0x20]
movdqu xmmword [rcx + 0x10], xmm1
movdqu xmm1, xmmword [r8 + 0x20]
psubb xmm1, xmm0
movdqu xmm0, xmmword [rdx + 0x30]
add rdx, 0x40
movdqu xmmword [rcx + 0x20], xmm1
movdqu xmm1, xmmword [r8 + 0x30]
add r8, 0x40
psubb xmm1, xmm0
movdqu xmmword [rcx + 0x30], xmm1
add rcx, 0x40
cmp rsi, rax
jb 0x180021150
cmp rsi, r9
jae 0x180020e54
sub r8, rcx
sub rdx, rcx
mov r10, r9
sub r10, rsi
nop word [rax + rax]
movzx eax, byte [r8 + rcx]
sub al, byte [rdx + rcx]
mov byte [rcx], al
lea rcx, [rcx + 1]
sub r10, 1
jne 0x1800211d0
jmp 0x180020e54
mov rbp, r11
mov r12, rcx
test r13b, 0x20
je 0x180021292
mov rsi, qword [rbx + 0x250]
mov r10, rdi
mov byte [rsi], 2
lea rdx, [rsi + 1]
test r9, r9
je 0x18002126d
mov r15, qword [rbx + 0x240]
mov r8, rdx
sub r8, rsi
sub r15, rdx
dec r8
mov r13, r14
sub r13, rdx
nop dword [rax + rax]
movzx eax, byte [rdx + r13 + 1]
sub al, byte [r15 + rdx + 1]
movzx ecx, al
mov eax, 0x100
sub eax, ecx
mov byte [rdx], cl
cmp ecx, 0x80
cmovae ecx, eax
mov eax, ecx
add r10, rax
cmp r10, r11
ja 0x180021265
inc rdx
inc r8
cmp r8, r9
jb 0x180021230
mov r13d, dword [rsp + 0xa8]
cmp r10, rbp
jae 0x180021292
mov rax, qword [rbx + 0x258]
mov rbp, r10
mov r12, rsi
test rax, rax
je 0x180021292
mov qword [rbx + 0x250], rax
mov qword [rbx + 0x258], rsi
cmp r13d, 0x40
jne 0x1800212b6
mov edx, dword [rsp + 0xa0]
mov r8, r9
mov rcx, rbx
call fcn.18001f0f0
mov rdx, qword [rbx + 0x250]
jmp 0x180021401
mov r11, rbp
mov r15, r12
test r13b, 0x40
je 0x1800213d4
mov rax, qword [rbx + 0x250]
lea rsi, [r14 + 1]
mov rdx, qword [rbx + 0x240]
mov r8, rdi
inc rdx
mov r10d, edi
mov byte [rax], 3
lea r14, [rax + 1]
mov eax, dword [rsp + 0xa0]
test eax, eax
je 0x18002133c
mov r13d, eax
mov r10d, eax
nop dword [rax]
movzx eax, byte [rsi]
inc rsi
movzx ecx, byte [rdx]
inc rdx
shr cl, 1
sub al, cl
movzx ecx, al
mov eax, 0x100
sub eax, ecx
mov byte [r14], cl
inc r14
cmp ecx, 0x80
cmovae ecx, eax
mov eax, ecx
add r8, rax
sub r13, 1
jne 0x180021300
mov r13d, dword [rsp + 0xa8]
mov eax, r10d
cmp rax, r9
jae 0x1800213ab
mov rbx, qword [rsp + 0x20]
sub rsi, rdx
inc rbx
sub rbx, rdx
sub r14, rdx
nop word [rax + rax]
movzx eax, byte [rdx]
movzx ecx, byte [rbx + rdx]
lea rdx, [rdx + 1]
add ecx, eax
movzx eax, byte [rsi + rdx - 1]
shr ecx, 1
sub al, cl
movzx ecx, al
mov eax, 0x100
sub eax, ecx
mov byte [r14 + rdx - 1], cl
cmp ecx, 0x80
cmovae ecx, eax
mov eax, ecx
add r8, rax
cmp r8, r11
ja 0x1800213a3
inc r10d
mov eax, r10d
cmp rax, r9
jb 0x180021360
mov rbx, qword [rsp + 0x90]
cmp r8, r11
jae 0x1800213d4
mov rax, qword [rbx + 0x258]
mov r11, r8
mov r15, qword [rbx + 0x250]
test rax, rax
je 0x1800213d4
mov qword [rbx + 0x250], rax
mov qword [rbx + 0x258], r15
cmp r13d, 0x80
jne 0x180020e54
mov edx, dword [rsp + 0xa0]
mov r8, r9
mov rcx, rbx
call fcn.18001f320
mov rdx, qword [rbx + 0x250]
jmp 0x180021401
mov rdx, qword [rsp + 0x20]
mov r8, qword [rsp + 0x98]
mov rcx, rbx
mov r8, qword [r8 + 8]
inc r8
mov r15, qword [rsp + 0x48]
mov r12, qword [rsp + 0x50]
mov rsi, qword [rsp + 0x58]
add rsp, 0x60
pop r14
pop r13
pop rdi
pop rbp
pop rbx
jmp 0x18001f900