Function at 0x14000a1cc
Capabilities:
Check if file exists
Create process on windows
Delete file
Query environment variable
Self delete

Disassembly:
mov rax, rsp
push rdi
push r12
push r13
push r14
push r15
sub rsp, 0x4d0
mov qword [rsp + 0x198], 0xfffffffffffffffe
mov qword [rax + 0x10], rbx
mov qword [rax + 0x18], rsi
lea rcx, str.TEMP
call fcn.140024370
mov r12, rax
mov esi, reloc.WS2_32.dll_ntohs
mov qword [rsp + 0x110], rsi
xor ebx, ebx
mov qword [rsp + 0x108], rbx
mov byte [rsp + 0xf8], bl
lea r8d, [rsi - 3]
lea rdx, str.upgrader.exe
lea rcx, [rsp + 0xf8]
call fcn.14000e6c4
nop
mov qword [rsp + 0xe8], rsi
mov qword [rsp + 0xe0], rbx
mov byte [rsp + 0xd0], bl
xor eax, eax
or rcx, 0xffffffffffffffff
mov rdi, r12
repne scasb al, byte [rdi]
not rcx
lea r8, [rcx - 1]
mov rdx, r12
lea rcx, [rsp + 0xd0]
call fcn.14000e6c4
nop
lea rdx, [rsp + 0xd0]
lea rcx, [rsp + 0x170]
call fcn.14000f54c
nop
lea r8, [rsp + 0xf8]
mov rdx, rax
lea rcx, [rsp + 0x58]
call fcn.14000f580
nop
cmp qword [rsp + 0x188], 0x10
jb 0x14000a2b7
mov rcx, qword [rsp + 0x170]
call fcn.140021190
mov qword [rsp + 0x188], rsi
mov qword [rsp + 0x180], rbx
mov byte [rsp + 0x170], bl
cmp qword [rsp + 0xe8], 0x10
jb 0x14000a2e6
mov rcx, qword [rsp + 0xd0]
call fcn.140021190
mov qword [rsp + 0xe8], rsi
mov qword [rsp + 0xe0], rbx
mov byte [rsp + 0xd0], bl
cmp qword [rsp + 0x110], 0x10
jb 0x14000a315
mov rcx, qword [rsp + 0xf8]
call fcn.140021190
mov qword [rsp + 0x110], rsi
mov qword [rsp + 0x108], rbx
mov byte [rsp + 0xf8], bl
mov qword [rsp + 0x48], rsi
mov qword [rsp + 0x40], rbx
mov byte [rsp + 0x30], bl
xor r8d, r8d
mov edi, 0x104
mov edx, edi
lea rcx, [rsp + 0x30]
call fcn.140003f5c
nop
lea rdx, [rsp + 0x30]
cmp qword [rsp + 0x48], 0x10
cmovae rdx, qword [rsp + 0x30]
mov r8d, edi
xor ecx, ecx
call qword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
lea rdx, [rsp + 0x58]
mov rsi, qword [rsp + 0x58]
mov r13, qword [rsp + 0x70]
cmp r13, 0x10
cmovae rdx, rsi
lea rcx, [rsp + 0x30]
mov r14, qword [rsp + 0x30]
mov r15, qword [rsp + 0x48]
cmp r15, 0x10
cmovae rcx, r14
mov rbx, qword [rsp + 0x68]
mov r8, rbx
mov rdi, qword [rsp + 0x40]
cmp rdi, rbx
cmovb r8, rdi
call fcn.140025f90
movsxd rcx, eax
xor eax, eax
cmp rdi, rbx
setne al
cmp rdi, rbx
mov rdx, 0xffffffffffffffff
cmovb eax, edx
xor edi, edi
test rcx, rcx
cmovne eax, ecx
test eax, eax
sete al
test al, al
sete al
test al, al
je 0x14000a85f
lea rcx, [rsp + 0x58]
cmp r13, 0x10
cmovae rcx, rsi
call qword [sym.imp.SHLWAPI.dll_PathFileExistsA]
test eax, eax
je 0x14000a41d
lea rcx, [rsp + 0x58]
cmp qword [rsp + 0x70], 0x10
cmovae rcx, qword [rsp + 0x58]
call qword [sym.imp.KERNEL32.dll_DeleteFileA]
mov ecx, 0x3e8
call qword [sym.imp.KERNEL32.dll_Sleep]
lea rdx, [rsp + 0x30]
lea rcx, [rsp + 0x1a0]
call fcn.14000cc54
nop
mov r8d, 0x20
lea rdx, [rsp + 0x58]
lea rcx, [rsp + 0x3c0]
call fcn.14000d6e4
nop
mov rax, qword [rsp + 0x1a0]
movsxd rcx, dword [rax + 4]
lea rax, [rsp + rcx + 0x1a0]
mov r13b, 6
test byte [rax + 0x10], r13b
cmovne rax, rdi
test rax, rax
je 0x14000a7cd
mov rax, qword [rsp + 0x3c0]
movsxd rcx, dword [rax + 4]
lea rax, [rsp + rcx + 0x3c0]
test byte [rax + 0x10], r13b
cmovne rax, rdi
test rax, rax
je 0x14000a7cd
lea rdx, [rsp + 0x1b0]
lea rcx, [rsp + 0x3c0]
call fcn.14000afd0
lea rcx, [rsp + 0x1a0]
call fcn.140003b14
lea rcx, [rsp + 0x3c0]
call fcn.14000d890
lea rcx, [rsp + 0x148]
call fcn.140009dbc
mov rbx, rax
mov esi, reloc.WS2_32.dll_ntohs
mov qword [rsp + 0xc0], rsi
mov qword [rsp + 0xb8], rdi
mov byte [rsp + 0xa8], dil
xor eax, eax
or rcx, 0xffffffffffffffff
mov rdi, r12
repne scasb al, byte [rdi]
not rcx
lea r8, [rcx - 1]
mov rdx, r12
lea rcx, [rsp + 0xa8]
call fcn.14000e6c4
nop
lea rdx, [rsp + 0xa8]
lea rcx, [rsp + 0x120]
call fcn.14000f54c
nop
mov r8, rbx
mov rdx, rax
lea rcx, [rsp + 0x80]
call fcn.14000f580
nop
cmp qword [rsp + 0x138], 0x10
jb 0x14000a557
mov rcx, qword [rsp + 0x120]
call fcn.140021190
mov qword [rsp + 0x138], rsi
xor edi, edi
mov qword [rsp + 0x130], rdi
mov byte [rsp + 0x120], dil
cmp qword [rsp + 0xc0], 0x10
jb 0x14000a589
mov rcx, qword [rsp + 0xa8]
call fcn.140021190
mov qword [rsp + 0xc0], rsi
mov qword [rsp + 0xb8], rdi
mov byte [rsp + 0xa8], dil
cmp qword [rsp + 0x160], 0x10
jb 0x14000a5b9
mov rcx, qword [rsp + 0x148]
call fcn.140021190
mov qword [rsp + 0x160], rsi
mov qword [rsp + 0x158], rdi
mov byte [rsp + 0x148], dil
lea rdx, str..bat
lea rcx, [rsp + 0x80]
call fcn.14000de3c
mov r8d, 2
lea rdx, [rsp + 0x80]
lea rcx, [rsp + 0x2b0]
call fcn.14000d6e4
nop
mov rax, qword [rsp + 0x2b0]
movsxd rcx, dword [rax + 4]
lea rax, [rsp + rcx + 0x2b0]
test byte [rax + 0x10], r13b
cmovne rax, rdi
test rax, rax
je 0x14000a7a6
lea rdx, str._echo_off
lea rcx, [rsp + 0x2b0]
call fcn.14000f5e0
mov rdi, rax
mov dl, 0xa
mov rcx, rax
call fcn.14000b18c
mov rcx, rdi
call fcn.1400039ec
lea rdx, str.timeout_3___NUL
lea rcx, [rsp + 0x2b0]
call fcn.14000f5e0
mov rdi, rax
mov dl, 0xa
mov rcx, rax
call fcn.14000b18c
mov rcx, rdi
call fcn.1400039ec
lea rdx, str.START_____
lea rcx, [rsp + 0x2b0]
call fcn.14000f5e0
lea rdx, [rsp + 0x58]
mov rcx, rax
call fcn.14000f800
lea rdx, [0x14004b740]
mov rcx, rax
call fcn.14000f5e0
mov rdi, rax
mov dl, 0xa
mov rcx, rax
call fcn.14000b18c
mov rcx, rdi
call fcn.1400039ec
lea rdx, [0x14004b754]
lea rcx, [rsp + 0x2b0]
call fcn.14000f5e0
mov rdx, r12
mov rcx, rax
call fcn.14000f5e0
mov rdi, rax
mov dl, 0xa
mov rcx, rax
call fcn.14000b18c
mov rcx, rdi
call fcn.1400039ec
lea rdi, [rsp + 0x80]
cmp qword [rsp + 0x98], 0x10
cmovae rdi, qword [rsp + 0x80]
lea rdx, str.DEL__
lea rcx, [rsp + 0x2b0]
call fcn.14000f5e0
mov rbx, rax
mov rcx, rdi
call qword [sym.imp.SHLWAPI.dll_PathFindFileNameA]
mov rdx, rax
mov rcx, rbx
call fcn.14000f5e0
lea rdx, str.___f__q
mov rcx, rax
call fcn.14000f5e0
mov rdi, rax
mov dl, 0xa
mov rcx, rax
call fcn.14000b18c
mov rcx, rdi
call fcn.1400039ec
lea rcx, [rsp + 0x2b0]
call fcn.14000d890
lea r8, [rsp + 0x80]
cmp qword [rsp + 0x98], 0x10
cmovae r8, qword [rsp + 0x80]
xor eax, eax
mov dword [rsp + 0x28], eax
mov qword [rsp + 0x20], rax
xor r9d, r9d
lea rdx, str.open
xor ecx, ecx
call qword [sym.imp.SHELL32.dll_ShellExecuteA]
xor ecx, ecx
call fcn.14002473c
nop
lea rcx, [rsp + 0x2b0]
call fcn.14000a938
nop
cmp qword [rsp + 0x98], 0x10
jb 0x14000a7cd
mov rcx, qword [rsp + 0x80]
call fcn.140021190
nop
lea rcx, [rsp + 0x3c0]
call fcn.14000a938
nop
lea rax, [rsp + 0x250]
mov qword [rsp + 0x500], rax
mov rax, qword [rsp + 0x1a0]
movsxd rcx, dword [rax + 4]
lea rax, vtable.std::basic_ifstream_char__struct_std::char_traits_char__.0
mov qword [rsp + rcx + 0x1a0], rax
lea rcx, [rsp + 0x1b0]
call fcn.14000cd74
nop
mov rax, qword [rsp + 0x1a0]
movsxd rcx, dword [rax + 4]
lea rax, vtable.std::basic_istream_char__struct_std::char_traits_char__.0
mov qword [rsp + rcx + 0x1a0], rax
lea rax, vtable.std::ios_base.0
mov qword [rsp + 0x250], rax
lea rcx, [rsp + 0x250]
call fcn.14003b594
mov r13, qword [rsp + 0x70]
mov rsi, qword [rsp + 0x58]
mov r15, qword [rsp + 0x48]
mov r14, qword [rsp + 0x30]
cmp r15, 0x10
jb 0x14000a877
mov rcx, r14
call fcn.140021190
mov r13, qword [rsp + 0x70]
mov rsi, qword [rsp + 0x58]
mov qword [rsp + 0x48], reloc.WS2_32.dll_ntohs
mov qword [rsp + 0x40], rdi
mov byte [rsp + 0x30], dil
cmp r13, 0x10
jb 0x14000a899
mov rcx, rsi
call fcn.140021190
nop
lea r11, [rsp + 0x4d0]
mov rbx, qword [r11 + 0x38]
mov rsi, qword [r11 + 0x40]
mov rsp, r11
pop r15
pop r14
pop r13
pop r12
pop rdi
ret