Function at 0x4289fb
Capabilities:
Create process on windows
Query environment variable
Self delete
Set file attributes
Terminate process

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x43ffca
mov eax, dword fs:[0]
push eax
mov eax, 0x41d4
call fcn.0041b5d0
mov eax, dword [0x455534]
xor eax, ebp
mov dword [ebp - 0x10], eax
push ebx
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
lea eax, [ebp - 0x407c]
push eax
call fcn.004280ba
cmp dword [eax + 0x18], 8
pop ecx
jb 0x428a45
mov eax, dword [eax + 4]
jmp 0x428a48
add eax, 4
push 0x80
push eax
call dword [sym.imp.KERNEL32.dll_SetFileAttributesW]
xor ebx, ebx
xor edi, edi
push ebx
inc edi
push edi
lea esi, [ebp - 0x407c]
call fcn.0040115a
call fcn.004230e1
test al, al
je 0x428a98
lea eax, [ebp - 0x407c]
push eax
call fcn.004280ba
pop ecx
mov edi, eax
call fcn.004236f7
push ebx
push 1
lea esi, [ebp - 0x407c]
call fcn.0040115a
push ebx
call dword [sym.imp.KERNEL32.dll_ExitProcess]
lea ecx, [ebp - 0x402c]
call fcn.00423c55
mov dword [ebp - 4], ebx
cmp dword [ebp - 0x4018], ebx
je 0x428ac1
push str.cmd.exe
lea eax, [ebp - 0x402c]
push eax
call fcn.00403da8
jmp 0x428af4
xor eax, eax
mov word [ebp - 0x4010], ax
push 0x2000
lea eax, [ebp - 0x4010]
push eax
push str.ComSpec
call dword [sym.imp.KERNEL32.dll_GetEnvironmentVariableW]
lea eax, [ebp - 0x4010]
push eax
lea eax, [ebp - 0x402c]
push eax
call fcn.004020fc
call dword [sym.imp.KERNEL32.dll_GetCurrentProcessId]
mov esi, eax
lea eax, [ebp - 0x4140]
push eax
call fcn.004280ba
pop ecx
mov dword [ebp - 0x4050], eax
lea eax, [ebp - 0x4108]
push eax
mov byte [ebp - 4], 1
call fcn.004280ba
pop ecx
mov dword [ebp - 0x404c], eax
mov eax, esi
lea ecx, [ebp - 0x40d0]
mov byte [ebp - 4], 2
call fcn.00423a1f
mov esi, eax
lea eax, [ebp - 0x402c]
push eax
lea eax, [ebp - 0x40b4]
push 0x44a168
push eax
mov byte [ebp - 4], 3
call fcn.00403c93
add esp, 0xc
push str.___c_taskkill__f__pid
push eax
lea eax, [ebp - 0x4124]
push eax
mov byte [ebp - 4], 4
call fcn.00403c02
add esp, 0xc
push esi
push eax
lea eax, [ebp - 0x415c]
push eax
mov byte [ebp - 4], 5
call fcn.00403c48
add esp, 0xc
push str.__for__l__x_in__1_1_60__do_ping_127.0.0.1__n_2__w_500__del__q__f__
push eax
lea eax, [ebp - 0x40ec]
push eax
mov byte [ebp - 4], 6
call fcn.00403c02
add esp, 0xc
push dword [ebp - 0x404c]
mov byte [ebp - 4], 7
push eax
lea eax, [ebp - 0x4098]
push eax
call fcn.00403c48
add esp, 0xc
push str.___if_not_exist__
push eax
lea eax, [ebp - 0x4178]
push eax
mov byte [ebp - 4], 8
call fcn.00403c02
add esp, 0xc
push dword [ebp - 0x4050]
mov byte [ebp - 4], 9
push eax
lea eax, [ebp - 0x4194]
push eax
call fcn.00403c48
add esp, 0xc
push str.__exit
mov byte [ebp - 4], 0xa
push eax
lea eax, [ebp - 0x4048]
push eax
call fcn.00403c02
add esp, 0xc
push ebx
push edi
lea esi, [ebp - 0x4194]
call fcn.0040115a
push ebx
push edi
lea esi, [ebp - 0x4178]
call fcn.0040115a
push ebx
push edi
lea esi, [ebp - 0x4098]
call fcn.0040115a
push ebx
push edi
lea esi, [ebp - 0x40ec]
call fcn.0040115a
push ebx
push edi
lea esi, [ebp - 0x415c]
call fcn.0040115a
push ebx
push edi
lea esi, [ebp - 0x4124]
call fcn.0040115a
push ebx
push edi
lea esi, [ebp - 0x40b4]
call fcn.0040115a
push ebx
push edi
lea esi, [ebp - 0x40d0]
call fcn.0040115a
push ebx
push edi
lea esi, [ebp - 0x4108]
call fcn.0040115a
push ebx
push edi
lea esi, [ebp - 0x4140]
call fcn.0040115a
push 0x44
lea eax, [ebp - 0x41e0]
push ebx
push eax
call fcn.004146f0
mov ecx, dword [ebp - 0x4044]
xor eax, eax
lea edi, [ebp - 0x4060]
stosd dword es:[edi], eax
stosd dword es:[edi], eax
stosd dword es:[edi], eax
stosd dword es:[edi], eax
xor eax, eax
add esp, 0xc
cmp dword [ebp - 0x4030], 8
mov dword [ebp - 0x41b4], 1
mov word [ebp - 0x41b0], ax
jae 0x428ccd
lea ecx, [ebp - 0x4044]
cmp dword [ebp - 0x4014], 8
mov eax, dword [ebp - 0x4028]
jae 0x428ce2
lea eax, [ebp - 0x4028]
lea edx, [ebp - 0x4060]
push edx
lea edx, [ebp - 0x41e0]
push edx
push ebx
push ebx
push ebx
push ebx
push ebx
push ebx
push ecx
push eax
call dword [sym.imp.KERNEL32.dll_CreateProcessW]
push dword [ebp - 0x405c]
mov esi, dword [sym.imp.KERNEL32.dll_CloseHandle]
call esi
push dword [ebp - 0x4060]
call esi
jmp 0x428a91