Function at 0x403992
Capabilities:
Accept command line arguments
Copy file
Create directory
Delete file
Get common file path
Get file system object information
Shutdown system
Terminate process

Disassembly:
sub esp, 0x17c
push ebx
push ebp
push esi
xor esi, esi
push edi
mov dword [esp + 0x18], esi
mov ebx, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
mov byte [esp + 0x10], 0x20
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push esi
call dword [sym.imp.ole32.dll_OleInitialize]
mov dword [0x452bf0], eax
push esi
lea eax, [esp + 0x30]
push 0x160
push eax
push esi
push 0x42f4c4
call dword [sym.imp.SHELL32.dll_SHGetFileInfoA]
push str.NSIS_Error
push 0x44eb40
call fcn.004064b4
mov ebp, 0x485000
push ebp
push 0x2000
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
call fcn.0040395e
test eax, eax
jne 0x403a22
push 0x1ffb
push ebp
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
push str.Temp
push ebp
call fcn.004064d7
call fcn.0040395e
test eax, eax
je 0x403b63
mov edi, 0x47b000
push edi
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
call dword [sym.imp.KERNEL32.dll_GetCommandLineA]
push eax
push edi
call fcn.004064b4
push 0
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
cmp byte [0x47b000], 0x22
mov dword [0x452b40], eax
mov eax, edi
jne 0x403a5d
mov byte [esp + 0x10], 0x22
mov eax, 0x47b001
push dword [esp + 0x10]
push eax
call fcn.00405fe2
push eax
call dword [sym.imp.USER32.dll_CharNextA]
mov dword [esp + 0x14], eax
mov cl, byte [eax]
test cl, cl
je 0x403aef
cmp cl, 0x20
jne 0x403a83
inc eax
cmp byte [eax], 0x20
je 0x403a7d
cmp byte [eax], 0x22
mov byte [esp + 0x10], 0x20
jne 0x403a93
inc eax
mov byte [esp + 0x10], 0x22
cmp byte [eax], 0x2f
jne 0x403acb
inc eax
cmp byte [eax], 0x53
jne 0x403aac
mov cl, byte [eax + 1]
or cl, 0x20
cmp cl, 0x20
jne 0x403aac
or esi, 2
cmp dword [eax], 0x4352434e
jne 0x403ac2
mov cl, byte [eax + 4]
or cl, 0x20
cmp cl, 0x20
jne 0x403ac2
or esi, 4
cmp dword [eax - 2], 0x3d442f20
je 0x403add
push dword [esp + 0x10]
push eax
call fcn.00405fe2
cmp byte [eax], 0x22
jne 0x403a72
inc eax
jmp 0x403a72
and byte [eax - 2], 0
add eax, 2
push eax
push 0x47d000
call fcn.004064b4
push esi
call fcn.00403315
mov ebx, eax
test ebx, ebx
jne 0x403b63
cmp dword [0x452b54], eax
je 0x403b4c
push eax
push edi
call fcn.00405fe2
mov esi, eax
cmp esi, edi
jb 0x403b1b
cmp dword [esi], 0x3d3f5f20
je 0x403b1b
dec esi
jmp 0x403b0c
cmp esi, edi
mov ebx, str.Error_launching_installer
jb 0x403b89
and byte [esi], 0
add esi, 4
push esi
call fcn.00406099
test eax, eax
je 0x403b63
push esi
push 0x47d000
call fcn.004064b4
push esi
push 0x47f000
call fcn.004064b4
xor ebx, ebx
or dword [0x452bec], 0xffffffff
call fcn.00403dac
push 1
mov dword [esp + 0x1c], eax
call fcn.004067c1
call fcn.00403d4e
call dword [sym.imp.ole32.dll_OleUninitialize]
test ebx, ebx
je 0x403c9b
push 0x200010
push ebx
call fcn.00405d53
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
push str.nsu.tmp_
push ebp
call fcn.004064d7
push 0
push ebp
call dword [sym.imp.KERNEL32.dll_CreateDirectoryA]
and dword [esp + 0x10], 0
mov esi, 0x4294c4
mov edi, 0x42d4c4
push ebp
push esi
mov word [0x4294c4], 0x22
call fcn.004064d7
push str.Au_.exe
push esi
call fcn.004064d7
push 0x4294c5
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
test ebx, ebx
je 0x403c81
push 0x2000
push edi
push dword [0x452b40]
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
lea eax, [eax + 0x42d4be]
push 0x40a7ad
push eax
call dword [sym.imp.KERNEL32.dll_lstrcmpiA]
test eax, eax
je 0x403b63
push 0
push 0x4294c5
push edi
call dword [sym.imp.KERNEL32.dll_CopyFileA]
test eax, eax
je 0x403c81
push 0
push 0x4294c5
call fcn.004061fb
cmp byte [0x47d000], 0
je 0x403c3a
push 0x47d000
push edi
call fcn.004064b4
jmp 0x403c40
push edi
call fcn.00405ffe
push 0x40a824
push esi
call fcn.004064d7
push dword [esp + 0x14]
push esi
call fcn.004064d7
push str.___
push esi
call fcn.004064d7
push edi
push esi
call fcn.004064d7
push esi
call fcn.00405fb7
push ebp
push esi
call fcn.00405ccc
test eax, eax
je 0x403c81
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
xor ebx, ebx
inc byte [str.Au_.exe]
inc dword [esp + 0x10]
cmp dword [esp + 0x10], 0x1a
jl 0x403bac
jmp 0x403b63
cmp dword [0x452bd4], 0
je 0x403d36
mov esi, str.ADVAPI32.dll
push str.OpenProcessToken
push esi
call fcn.0040699a
push str.LookupPrivilegeValueA
push esi
mov ebp, eax
call fcn.0040699a
push str.AdjustTokenPrivileges
push esi
mov edi, eax
call fcn.0040699a
xor esi, esi
mov ebx, eax
cmp ebp, esi
je 0x403d22
cmp edi, esi
je 0x403d22
cmp ebx, esi
je 0x403d22
lea eax, [esp + 0x14]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call ebp
test eax, eax
je 0x403d22
lea eax, [esp + 0x20]
push eax
push str.SeShutdownPrivilege
push esi
call edi
push esi
push esi
lea eax, [esp + 0x24]
push esi
push eax
push esi
push dword [esp + 0x28]
mov dword [esp + 0x34], 1
mov dword [esp + 0x40], 2
call ebx
push esi
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x403d36
push 9
call fcn.00401518
mov eax, dword [0x452bec]
cmp eax, 0xffffffff
je 0x403d44
mov dword [esp + 0x18], eax
push dword [esp + 0x18]
call dword [sym.imp.KERNEL32.dll_ExitProcess]