Function at 0x40458f
Capabilities:
Accept command line arguments
Check for time delay via gettickcount
Copy file
Delete file
Get common file path
Get file size
Read file on windows
Terminate process

Disassembly:
sub esp, 0xc
push ebx
push esi
push edi
call dword [sym.imp.KERNEL32.dll_GetTickCount]
add eax, 0x3e8
mov esi, 0x41ff60
mov dword [esp + 0x10], eax
mov bl, 0x20
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push 0x400
call dword [sym.imp.KERNEL32.dll_GetCommandLineA]
push eax
push esi
call dword [sym.imp.KERNEL32.dll_lstrcpynA]
cmp byte [0x41ff60], 0x22
jne 0x4045d5
add bl, 2
mov esi, 0x41ff61
mov al, byte [esi]
mov edi, dword [sym.imp.USER32.dll_CharNextA]
test al, al
je 0x4045f0
cmp al, bl
je 0x4045f0
push esi
call edi
mov esi, eax
mov al, byte [esi]
test al, al
jne 0x4045e1
cmp byte [esi], 0
je 0x4045fa
push esi
call edi
mov esi, eax
mov dword [esp + 0x14], esi
cmp byte [esi], 0x20
jne 0x40460a
push esi
call edi
mov esi, eax
jmp 0x4045fe
cmp byte [esi], 0x2f
jne 0x404630
mov dl, byte [esi + 1]
inc esi
cmp dl, 0x53
jne 0x40468d
mov al, byte [esi + 1]
cmp al, 0x20
je 0x404623
test al, al
jne 0x40468d
inc byte [0x41851c]
inc esi
inc esi
cmp byte [esi], 0
jne 0x4045fe
push str.NSIS_ERROR
push 0x4217a0
call dword [sym.imp.KERNEL32.dll_lstrcpyA]
xor ebx, ebx
push ebx
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
mov edi, 0x420b60
push 0x400
push edi
push eax
mov dword [0x41af54], eax
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
push 3
push 0x80000000
push edi
call fcn.0040678d
add esp, 0xc
cmp eax, 0xffffffff
mov dword [0x421fa8], eax
jne 0x404705
mov dword [0x4180a8], str.Cant_open_self
jmp 0x404aca
cmp dl, 0x4e
jne 0x4046c0
cmp byte [esi + 1], 0x43
jne 0x4046c0
cmp byte [esi + 2], 0x52
jne 0x4046c0
cmp byte [esi + 3], 0x43
jne 0x4046c0
mov cl, byte [esi + 4]
lea eax, [esi + 4]
cmp cl, 0x20
je 0x4046b3
test cl, cl
jne 0x4046c0
inc byte [0x418f24]
mov esi, eax
jmp 0x40462b
cmp dl, 0x44
jne 0x4046ec
cmp byte [esi + 1], 0x3d
jne 0x4046ec
and byte [esi - 2], 0
lea eax, [esi + 2]
push eax
push 0x420360
call dword [sym.imp.KERNEL32.dll_lstrcpyA]
push esi
call dword [sym.imp.KERNEL32.dll_lstrlenA]
add esi, eax
jmp 0x40462b
mov al, byte [esi]
test al, al
je 0x40462b
cmp al, 0x20
je 0x40462b
push esi
call edi
mov esi, eax
jmp 0x4046ec
push ebp
push edi
call fcn.00406647
pop ecx
push ebx
push dword [0x421fa8]
call dword [sym.imp.KERNEL32.dll_GetFileSize]
cmp eax, ebx
mov dword [0x418d20], eax
mov edi, eax
jle 0x404857
mov ebp, 0x418d24
mov eax, 0x200
mov dword [esp + 0x10], edi
cmp edi, eax
jbe 0x40473f
mov dword [esp + 0x10], eax
lea eax, [esp + 0x10]
push ebx
push eax
push dword [esp + 0x18]
push ebp
push dword [0x421fa8]
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x40493b
cmp dword [0x421fa0], ebx
jne 0x4047c5
push ebp
call fcn.00404253
cmp eax, ebx
pop ecx
je 0x404823
mov ecx, dword [0x418514]
cmp eax, edi
mov dword [0x421fa0], ecx
jg 0x40495e
mov cl, byte [0x418d24]
test cl, 4
je 0x40479a
inc byte [0x41851c]
cmp byte [0x418f24], 0
jne 0x404857
test cl, 1
je 0x404857
inc byte [0x4180cc]
lea edi, [eax - 4]
cmp dword [esp + 0x10], edi
jbe 0x404823
mov dword [esp + 0x10], edi
jmp 0x404823
cmp byte [0x41851c], 0
jne 0x404823
cmp dword [0x418518], ebx
je 0x4047f7
push 1
push ebx
push ebx
push ebx
push 0x4180b0
call dword [sym.imp.USER32.dll_PeekMessageA]
test eax, eax
je 0x404823
push 0x4180b0
call dword [sym.imp.USER32.dll_DispatchMessageA]
jmp 0x4047d6
call dword [sym.imp.KERNEL32.dll_GetTickCount]
cmp eax, dword [esp + 0x14]
jbe 0x404823
push ebx
push 0x404af2
call dword [sym.imp.USER32.dll_GetDesktopWindow]
push eax
push 0x6f
push dword [0x41af54]
call dword [sym.imp.USER32.dll_CreateDialogParamA]
mov dword [0x418518], eax
cmp edi, dword [0x418d20]
jge 0x404843
push dword [esp + 0x10]
push ebp
push dword [0x4180d0]
call fcn.00402637
add esp, 0xc
mov dword [0x4180d0], eax
mov eax, dword [esp + 0x10]
add dword [0x418514], eax
sub edi, eax
cmp edi, ebx
jg 0x40472e
mov eax, dword [0x418518]
cmp eax, ebx
je 0x404867
push eax
call dword [sym.imp.USER32.dll_DestroyWindow]
cmp dword [0x421fa0], ebx
je 0x4048d7
cmp byte [0x4180cc], 0
mov edi, dword [sym.imp.KERNEL32.dll_SetFilePointer]
je 0x4048be
push ebx
push ebx
push dword [0x418514]
push dword [0x421fa8]
call edi
lea eax, [esp + 0x10]
push ebx
push eax
lea eax, [esp + 0x1c]
push 4
push eax
push dword [0x421fa8]
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x40495e
mov eax, dword [0x4180d0]
cmp eax, dword [esp + 0x14]
jne 0x40495e
push ebx
push ebx
push dword [0x421fa0]
push dword [0x421fa8]
call edi
call fcn.0040428a
test eax, eax
je 0x4048e1
mov eax, dword [str.Installer_verification_failed._r_n_r_nThis_could_be_the_result_of_an_incomplete_download__r_na_failing_disk__or__possibly__corruption_from_a_virus._r_n_r_nYou_can_try_to_force_an_install_using_the__NCRC_r_ncommand_line_switch__but_it_is_NOT_recommended_]
mov dword [0x4180a8], eax
cmp dword [0x4180a8], ebx
jne 0x404ab8
xor eax, eax
cmp dword [0x42177c], eax
je 0x404a9a
cmp byte [esi], 0x5f
jne 0x404968
cmp byte [esi + 1], 0x3d
jne 0x404968
cmp byte [esi + 2], al
lea edi, [esi + 2]
je 0x404968
and byte [esi - 1], al
push edi
call fcn.004066c5
test eax, eax
pop ecx
je 0x404a8e
mov esi, dword [sym.imp.KERNEL32.dll_lstrcpyA]
push edi
push 0x420360
call esi
push edi
push 0x420760
call esi
jmp 0x404a9a
mov eax, dword [str.Installer_verification_failed._r_n_r_nThis_could_be_the_result_of_an_incomplete_download__r_na_failing_disk__or__possibly__corruption_from_a_virus._r_n_r_nYou_can_try_to_force_an_install_using_the__NCRC_r_ncommand_line_switch__but_it_is_NOT_recommended_]
mov dword [0x4180a8], eax
mov eax, dword [0x418518]
cmp eax, ebx
je 0x404ab8
push eax
call dword [sym.imp.USER32.dll_DestroyWindow]
jmp 0x404ab8
mov eax, dword [str.Installer_verification_failed._r_n_r_nThis_could_be_the_result_of_an_incomplete_download__r_na_failing_disk__or__possibly__corruption_from_a_virus._r_n_r_nYou_can_try_to_force_an_install_using_the__NCRC_r_ncommand_line_switch__but_it_is_NOT_recommended_]
jmp 0x404a93
mov edi, dword [sym.imp.KERNEL32.dll_lstrcatA]
mov dword [esp + 0x14], eax
mov dword [esp + 0x10], eax
mov ebx, 0x418521
mov esi, 0x418520
mov ebp, 0x4180d4
push ebx
push 0x7ff
mov byte [0x418520], 0x22
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
push str.ANSISu_.exe
push esi
call edi
push ebx
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
cmp dword [esp + 0x14], 0
jne 0x404a72
push 0x400
push ebp
push dword [0x41af54]
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
lea eax, [eax + 0x4180c9]
push 0x4092dd
push eax
call dword [sym.imp.KERNEL32.dll_lstrcmpiA]
test eax, eax
je 0x404a8e
push 0
push ebx
push ebp
call dword [sym.imp.KERNEL32.dll_CopyFileA]
test eax, eax
je 0x404a72
push 0
push ebx
call fcn.004067a7
cmp byte [0x420360], 0
pop ecx
pop ecx
je 0x404a11
push 0x420360
push ebp
call dword [sym.imp.KERNEL32.dll_lstrcpyA]
jmp 0x404a18
push ebp
call fcn.00406647
pop ecx
push ebp
call fcn.004066c5
test eax, eax
pop ecx
je 0x404a8e
push 0x409404
push esi
mov dword [esp + 0x1c], 1
call edi
push dword [esp + 0x18]
push esi
call edi
push 0x409400
push esi
call edi
push ebp
push esi
call edi
push ebp
push 0x400
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
push ebp
push esi
call fcn.004065b6
pop ecx
test eax, eax
pop ecx
je 0x404a68
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
jmp 0x404a72
mov eax, dword [str.Error_initializing_uninstaller]
mov dword [0x4180a8], eax
inc byte [str.ANSISu_.exe]
inc dword [esp + 0x10]
cmp dword [esp + 0x10], 0x1a
jl 0x404985
cmp dword [esp + 0x14], 0
jne 0x404ab8
mov eax, dword [str.Error_initializing_uninstaller]
mov dword [0x4180a8], eax
jmp 0x404ab8
mov eax, dword [0x421774]
cmp byte [eax + 0x62], 0
jne 0x404aae
mov cl, byte [0x41851c]
mov byte [eax + 0x62], cl
call fcn.00404b67
mov dword [0x418f28], eax
mov eax, dword [0x421fa8]
pop ebp
cmp eax, 0xffffffff
je 0x404aca
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov eax, dword [0x4180a8]
pop edi
pop esi
pop ebx
test eax, eax
je 0x404ae6
push 0x10
push 0x4217a0
push eax
push 0
call dword [sym.imp.USER32.dll_MessageBoxA]
push dword [0x418f28]
call dword [sym.imp.KERNEL32.dll_ExitProcess]