Function at 0x423020
Capabilities:
Check if file exists
Delete file
Get file attributes
Move file
Persist via run registry key
Set registry value

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x4b60c9
mov eax, dword fs:[0]
push eax
sub esp, 0x1ac
mov eax, dword [0x4e43e0]
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
mov eax, dword [ebp + 0xc]
mov ebx, dword [ebp + 8]
mov dword [ebp - 0x1b4], eax
test eax, eax
je 0x423924
lea ecx, [ebp - 0x19c]
call fcn.004272b0
mov dword [ebp - 4], 0
mov dword [ebp - 0x1b0], 0
mov dword [ebp - 0x1ac], 0
mov dword [ebp - 0x1a8], 0
mov edi, dword [ebx]
mov esi, dword [ebx + 4]
mov byte [ebp - 4], 1
cmp edi, esi
jae 0x42329f
push dword [edi]
call dword [sym.imp.KERNEL32.dll_GetFileAttributesW]
cmp eax, 0xffffffff
je 0x4230f3
test al, 0x10
je 0x4230f3
mov esi, dword [ebp - 0x1ac]
cmp dword [ebp - 0x1a8], esi
je 0x4230e1
mov eax, dword [edi]
sub eax, 0x10
push eax
call fcn.004073b0
add eax, 0x10
add esp, 4
mov dword [esi], eax
add dword [ebp - 0x1ac], 4
jmp 0x42328d
push edi
push esi
lea ecx, [ebp - 0x1b0]
call fcn.0041fc10
jmp 0x42328d
mov eax, dword [0x4e7d74]
test al, 1
jne 0x423132
or eax, 1
mov dword [0x4e7d74], eax
call dword [sym.imp.KERNEL32.dll_GetProcessHeap]
push 0x4ba3c0
mov dword [0x4e7d68], 0x4bc678
mov dword [0x4e7d6c], eax
mov byte [0x4e7d70], 0
call fcn.0042a250
mov eax, dword [0x4e7d74]
add esp, 4
test al, 2
jne 0x42318e
or eax, 2
mov dword [0x4e7d78], 0x4bc690
mov dword [0x4e7d74], eax
xor eax, eax
push 0x4ba3f0
mov dword [0x4e7d7c], 0x4e7d68
mov dword [0x4e7d8c], 2
mov dword [0x4e7d84], 0
mov dword [0x4e7d88], 0
mov dword [0x4e7d90], eax
mov dword [0x4e7d80], 0x4e7d78
call fcn.0042a250
add esp, 4
mov eax, dword [0x4e7d78]
mov ecx, 0x4e7d78
call dword [eax + 0xc]
add eax, 0x10
mov dword [ebp - 0x1a0], eax
lea eax, [ebp - 0x1a0]
mov byte [ebp - 4], 2
push eax
push edi
call fcn.0041cba0
add esp, 8
test eax, eax
je 0x423255
push dword [ebp - 0x1a0]
push dword [edi]
push str.cut__s_to__s_success
call fcn.00414b10
add esp, 0xc
push 4
push 0
push dword [ebp - 0x1a0]
call dword [sym.imp.KERNEL32.dll_MoveFileExW]
push dword [ebp - 0x1a0]
test eax, eax
je 0x4231fe
push str.write__s_to_pending_success
call fcn.00414b10
add esp, 8
jmp 0x42326b
lea ecx, [ebp - 0x94]
call fcn.004202b0
push dword [eax]
lea eax, [ebp - 0x19c]
mov byte [ebp - 4], 3
push str.del__q___s___r_n
push eax
call fcn.004273e0
mov eax, dword [ebp - 0x94]
lea ecx, [ebp - 0x90]
add esp, 0xc
mov byte [ebp - 4], 2
cmp eax, ecx
je 0x423240
push eax
call fcn.0046a876
add esp, 4
push dword [ebp - 0x1a0]
push str.write_to_runonce_bat:__s
call fcn.00414b10
add esp, 8
jmp 0x42326b
push dword [edi]
push str.cut__s_to_temp_failed__delete_by_pending
call fcn.00414b10
push dword [edi]
call fcn.0041d7c0
add esp, 0xc
mov edx, dword [ebp - 0x1a0]
or eax, 0xffffffff
mov byte [ebp - 4], 1
add edx, 0xfffffff0
lock xadd dword [edx + 0xc], eax
dec eax
test eax, eax
jg 0x42328d
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
mov esi, dword [ebx + 4]
add edi, 4
cmp edi, esi
jb 0x4230a3
mov edi, dword [ebx]
cmp edi, esi
je 0x4232c4
mov edx, dword [edi]
or eax, 0xffffffff
sub edx, 0x10
lock xadd dword [edx + 0xc], eax
dec eax
test eax, eax
jg 0x4232bb
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
add edi, 4
cmp edi, esi
jne 0x4232a1
mov edi, dword [ebx]
mov esi, dword [ebp - 0x1b0]
mov dword [ebx + 4], edi
cmp esi, dword [ebp - 0x1ac]
jae 0x423599
nop dword [eax]
push dword [esi]
call fcn.0041d2f0
add esp, 4
test eax, eax
jne 0x42358a
mov eax, dword [0x4e7d74]
test al, 1
jne 0x423331
or eax, 1
mov dword [0x4e7d74], eax
call dword [sym.imp.KERNEL32.dll_GetProcessHeap]
push 0x4ba3c0
mov dword [0x4e7d68], 0x4bc678
mov dword [0x4e7d6c], eax
mov byte [0x4e7d70], 0
call fcn.0042a250
mov eax, dword [0x4e7d74]
add esp, 4
test al, 2
jne 0x42338d
or eax, 2
mov dword [0x4e7d78], 0x4bc690
mov dword [0x4e7d74], eax
xor eax, eax
push 0x4ba3f0
mov dword [0x4e7d7c], 0x4e7d68
mov dword [0x4e7d8c], 2
mov dword [0x4e7d84], 0
mov dword [0x4e7d88], 0
mov dword [0x4e7d90], eax
mov dword [0x4e7d80], 0x4e7d78
call fcn.0042a250
add esp, 4
mov eax, dword [0x4e7d78]
mov ecx, 0x4e7d78
call dword [eax + 0xc]
add eax, 0x10
mov dword [ebp - 0x1a0], eax
lea eax, [ebp - 0x1a0]
mov byte [ebp - 4], 4
push eax
push esi
call fcn.0041cba0
add esp, 8
test eax, eax
je 0x423552
push dword [ebp - 0x1a0]
push dword [esi]
push str.cut__s_to__s_success
call fcn.00414b10
add esp, 0xc
push 4
push 0
push dword [ebp - 0x1a0]
call dword [sym.imp.KERNEL32.dll_MoveFileExW]
test eax, eax
je 0x423400
push dword [ebp - 0x1a0]
push str.write__s_to_pending_success
call fcn.00414b10
add esp, 8
jmp 0x423568
mov ebx, dword [ebp - 0x1a0]
lea eax, [ebp - 0x90]
mov dword [ebp - 0x1b8], ebx
mov dword [ebp - 0x94], eax
test ebx, ebx
jne 0x423429
xor eax, eax
mov dword [ebp - 0x94], eax
jmp 0x423507
mov ecx, ebx
lea edx, [ecx + 2]
nop
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x423430
sub ecx, edx
sar ecx, 1
push 0x80
lea eax, [ecx + 1]
lea edi, [eax*4]
mov dword [ebp - 0x1a4], eax
lea eax, [ebp - 0x90]
push eax
lea eax, [ebp - 0x94]
push edi
push eax
call fcn.00406b70
add esp, 0x10
push 0
push 0
push edi
push dword [ebp - 0x94]
mov edi, dword [ebp - 0x1a4]
push edi
push ebx
push 0
push 3
call dword [sym.imp.KERNEL32.dll_WideCharToMultiByte]
xor ebx, ebx
test eax, eax
sete bl
test eax, eax
jne 0x4234f9
call dword [sym.imp.KERNEL32.dll_GetLastError]
cmp eax, 0x7a
jne 0x4234f9
mov ebx, dword [ebp - 0x1b8]
push 0
push 0
push 0
push 0
push edi
push ebx
push 0
push 3
call dword [sym.imp.KERNEL32.dll_WideCharToMultiByte]
mov edi, eax
lea eax, [ebp - 0x90]
push 0x80
push eax
lea eax, [ebp - 0x94]
push edi
push eax
call fcn.00406b70
add esp, 0x10
push 0
push 0
push edi
push dword [ebp - 0x94]
push dword [ebp - 0x1a4]
push ebx
push 0
push 3
call dword [sym.imp.KERNEL32.dll_WideCharToMultiByte]
mov ebx, eax
neg ebx
sbb ebx, ebx
inc ebx
test ebx, ebx
jne 0x423946
mov eax, dword [ebp - 0x94]
push eax
lea eax, [ebp - 0x19c]
mov byte [ebp - 4], 5
push str.rd__s__q___s___r_n
push eax
call fcn.004273e0
mov eax, dword [ebp - 0x94]
lea ecx, [ebp - 0x90]
add esp, 0xc
mov byte [ebp - 4], 4
cmp eax, ecx
je 0x42353d
push eax
call fcn.0046a876
add esp, 4
push dword [ebp - 0x1a0]
push str.write_to_runonce_bat:__s
call fcn.00414b10
add esp, 8
jmp 0x423568
push dword [esi]
push str.cut__s_to_temp_failed_delete_by_pending
call fcn.00414b10
push dword [esi]
call fcn.0041d7c0
add esp, 0xc
mov edx, dword [ebp - 0x1a0]
or eax, 0xffffffff
mov byte [ebp - 4], 1
add edx, 0xfffffff0
lock xadd dword [edx + 0xc], eax
dec eax
test eax, eax
jg 0x42358a
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
add esi, 4
cmp esi, dword [ebp - 0x1ac]
jb 0x4232e0
mov ebx, dword [ebp - 0x1b4]
push ebx
call fcn.0041d2f0
add esp, 4
test eax, eax
jne 0x4236db
lea ecx, [ebp - 0x1a0]
call fcn.00409950
push ebx
lea ecx, [ebp - 0x1a4]
mov byte [ebp - 4], 6
call fcn.00406da0
lea eax, [ebp - 0x1a0]
mov byte [ebp - 4], 7
push eax
lea eax, [ebp - 0x1a4]
push eax
call fcn.0041cba0
mov edx, dword [ebp - 0x1a4]
add esp, 8
mov esi, eax
mov byte [ebp - 4], 6
add edx, 0xfffffff0
or ecx, 0xffffffff
lock xadd dword [edx + 0xc], ecx
dec ecx
test ecx, ecx
jg 0x423609
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
test esi, esi
je 0x4236a5
push dword [ebp - 0x1a0]
push ebx
push str.cut__s_to__s_success
call fcn.00414b10
add esp, 0xc
push 4
push 0
push dword [ebp - 0x1a0]
call dword [sym.imp.KERNEL32.dll_MoveFileExW]
push dword [ebp - 0x1a0]
test eax, eax
je 0x42364e
push str.write__s_to_pending_success
call fcn.00414b10
add esp, 8
jmp 0x4236b9
lea ecx, [ebp - 0x94]
call fcn.004202b0
push dword [eax]
lea eax, [ebp - 0x19c]
mov byte [ebp - 4], 8
push str.rd__q___s___r_n
push eax
call fcn.004273e0
mov eax, dword [ebp - 0x94]
lea ecx, [ebp - 0x90]
add esp, 0xc
mov byte [ebp - 4], 6
cmp eax, ecx
je 0x423690
push eax
call fcn.0046a876
add esp, 4
push dword [ebp - 0x1a0]
push str.write_to_runonce_bat:__s
call fcn.00414b10
add esp, 8
jmp 0x4236b9
push ebx
push str.cut__s_to_temp_failed_delete_by_pending
call fcn.00414b10
push ebx
call fcn.0041d7c0
add esp, 0xc
mov edx, dword [ebp - 0x1a0]
or eax, 0xffffffff
mov byte [ebp - 4], 1
add edx, 0xfffffff0
lock xadd dword [edx + 0xc], eax
dec eax
test eax, eax
jg 0x4236db
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
lea ecx, [ebp - 0x1a4]
call fcn.00409950
movzx eax, word [ebx]
push eax
lea eax, [ebp - 0x1a4]
mov byte [ebp - 4], 9
push str._c:.temp
push eax
call fcn.0040a940
mov esi, dword [ebp - 0x1a4]
add esp, 0xc
push 4
push 0
push esi
call dword [sym.imp.KERNEL32.dll_MoveFileExW]
push esi
test eax, eax
je 0x42371f
push str.write__s_to_pending_success
jmp 0x423767
lea ecx, [ebp - 0x94]
call fcn.004202b0
push dword [eax]
lea eax, [ebp - 0x19c]
mov byte [ebp - 4], 0xa
push str.rd__q___s___r_n
push eax
call fcn.004273e0
mov eax, dword [ebp - 0x94]
lea ecx, [ebp - 0x90]
add esp, 0xc
mov byte [ebp - 4], 9
cmp eax, ecx
je 0x423761
push eax
call fcn.0046a876
add esp, 4
push esi
push str.write_to_runonce_bat:__s
call fcn.00414b10
add esp, 8
lea ecx, [ebp - 0x19c]
call fcn.004272e0
test al, al
je 0x423868
lea ecx, [ebp - 0x19c]
call fcn.00427310
push eax
lea eax, [ebp - 0x19c]
push str.del__q___s___r_n
push eax
call fcn.004273e0
add esp, 0xc
lea ecx, [ebp - 0x19c]
call fcn.00427310
mov dword [ebp - 0x1b4], eax
test eax, eax
je 0x423803
mov ecx, eax
lea edx, [ecx + 1]
nop dword [eax]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x4237c0
sub ecx, edx
lea ebx, [ecx + 1]
cmp ebx, 0x3fffffff
jg 0x423803
lea eax, [ebx + ebx]
call fcn.0042a310
mov edi, esp
test edi, edi
je 0x423803
push ebx
push edi
push 0xffffffffffffffff
push dword [ebp - 0x1b4]
xor eax, eax
push eax
push 3
mov word [edi], ax
call dword [sym.imp.KERNEL32.dll_MultiByteToWideChar]
xor ecx, ecx
test eax, eax
cmove edi, ecx
jmp 0x423805
xor edi, edi
push edi
push str.write_to_runonce_bat:__s
call fcn.00414b10
add esp, 8
lea ecx, [ebp - 0x19c]
call fcn.004272f0
mov edi, eax
test edi, edi
je 0x423868
lea ecx, [ebp - 0x19c]
call fcn.00427310
lea edx, [eax + 1]
mov cl, byte [eax]
inc eax
test cl, cl
jne 0x423832
sub eax, edx
lea ecx, [ebp - 0x19c]
push eax
call fcn.00427310
push eax
push 1
push edi
push str.SOFTWAREMicrosoftWindowsCurrentVersionRunOnce
push reloc.OLEAUT32.dll_SysReAllocString
call dword [sym.imp.SHLWAPI.dll_SHSetValueA]
push str.write_runonce_bat_to_registry
call fcn.00414b10
add esp, 4
mov byte [ebp - 4], 1
add esi, 0xfffffff0
or eax, 0xffffffff
lock xadd dword [esi + 0xc], eax
dec eax
test eax, eax
jg 0x423884
mov ecx, dword [esi]
push esi
mov eax, dword [ecx]
call dword [eax + 4]
mov esi, dword [ebp - 0x1b0]
mov byte [ebp - 4], 0
test esi, esi
je 0x423914
mov edi, dword [ebp - 0x1ac]
cmp esi, edi
je 0x4238c7
mov edx, dword [esi]
or eax, 0xffffffff
sub edx, 0x10
lock xadd dword [edx + 0xc], eax
dec eax
test eax, eax
jg 0x4238ba
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
add esi, 4
cmp esi, edi
jne 0x4238a0
mov esi, dword [ebp - 0x1b0]
mov ecx, dword [ebp - 0x1a8]
mov eax, esi
sub ecx, esi
and ecx, 0xfffffffc
cmp ecx, 0x1000
jb 0x4238ec
mov esi, dword [esi - 4]
add ecx, 0x23
sub eax, esi
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x423965
push ecx
push esi
call fcn.00429e5a
add esp, 8
mov dword [ebp - 0x1b0], 0
mov dword [ebp - 0x1ac], 0
mov dword [ebp - 0x1a8], 0
lea ecx, [ebp - 0x19c]
call fcn.004272c0
mov eax, 1
lea esp, [ebp - 0x1c8]
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.0042a265
mov esp, ebp
pop ebp
ret
push 0x80
lea eax, [ebp - 0x90]
push eax
push dword [ebp - 0x94]
call fcn.00406c70
add esp, 0xc
call fcn.00407260
call fcn.0044b1e9
int3