Function at 0x403974
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, 0x180
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 dword [esp + 0x10], esi
mov byte [esp + 0x14], 0x20
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push esi
call dword [sym.imp.ole32.dll_OleInitialize]
mov dword [0x44bb10], eax
push esi
lea eax, [esp + 0x34]
push 0x160
push eax
push esi
push 0x42f3f4
call dword [sym.imp.SHELL32.dll_SHGetFileInfoA]
push str.NSIS_Error
push 0x447a60
call fcn.0040643b
mov ebp, 0x47e000
mov edi, 0x2000
push ebp
push edi
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
call fcn.00403940
test eax, eax
jne 0x403a09
push 0x1ffb
push ebp
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
push str.Temp
push ebp
call fcn.00406459
call fcn.00403940
test eax, eax
je 0x403b54
mov esi, 0x474000
push esi
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
push edi
call dword [sym.imp.KERNEL32.dll_GetCommandLineA]
push eax
push esi
call dword [sym.imp.KERNEL32.dll_lstrcpynA]
xor edi, edi
push edi
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
cmp byte [0x474000], 0x22
mov dword [0x44ba60], eax
mov eax, esi
jne 0x403a47
mov byte [esp + 0x14], 0x22
mov eax, 0x474001
push dword [esp + 0x14]
push eax
call fcn.00405f6b
push eax
call dword [sym.imp.USER32.dll_CharNextA]
mov dword [esp + 0x1c], eax
mov cl, byte [eax]
test cl, cl
je 0x403add
cmp cl, 0x20
jne 0x403a6d
inc eax
cmp byte [eax], 0x20
je 0x403a67
cmp byte [eax], 0x22
mov byte [esp + 0x14], 0x20
jne 0x403a7d
inc eax
mov byte [esp + 0x14], 0x22
cmp byte [eax], 0x2f
jne 0x403ab9
inc eax
cmp byte [eax], 0x53
jne 0x403a98
mov cl, byte [eax + 1]
or cl, 0x20
cmp cl, 0x20
jne 0x403a98
or dword [esp + 0x10], 2
cmp dword [eax], 0x4352434e
jne 0x403ab0
mov cl, byte [eax + 4]
or cl, 0x20
cmp cl, 0x20
jne 0x403ab0
or dword [esp + 0x10], 4
cmp dword [eax - 2], 0x3d442f20
je 0x403acb
push dword [esp + 0x14]
push eax
call fcn.00405f6b
cmp byte [eax], 0x22
jne 0x403a5c
inc eax
jmp 0x403a5c
and byte [eax - 2], 0
add eax, 2
push eax
push 0x476000
call fcn.0040643b
push dword [esp + 0x10]
call fcn.004032f7
mov ebx, eax
cmp ebx, edi
jne 0x403b54
cmp dword [0x44ba74], edi
je 0x403b3d
push edi
push esi
call fcn.00405f6b
mov edi, eax
cmp edi, esi
jb 0x403b0c
cmp dword [edi], 0x3d3f5f20
je 0x403b0c
dec edi
jmp 0x403afd
cmp edi, esi
mov ebx, str.Error_launching_installer
jb 0x403b7a
and byte [edi], 0
add edi, 4
push edi
call fcn.00406022
test eax, eax
je 0x403b54
push edi
push 0x476000
call fcn.0040643b
push edi
push 0x478000
call fcn.0040643b
xor ebx, ebx
or dword [0x44bb0c], 0xffffffff
call fcn.00403d9d
push 1
mov dword [esp + 0x1c], eax
call fcn.00406744
call fcn.00403d3f
call dword [sym.imp.ole32.dll_OleUninitialize]
test ebx, ebx
je 0x403c8c
push 0x200010
push ebx
call fcn.00405cf2
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
push str.nsu.tmp_
push ebp
call fcn.00406459
push 0
push ebp
call dword [sym.imp.KERNEL32.dll_CreateDirectoryA]
and dword [esp + 0x10], 0
mov esi, 0x4293f4
mov edi, 0x42d3f4
push ebp
push esi
mov word [0x4293f4], 0x22
call fcn.00406459
push str.Au_.exe
push esi
call fcn.00406459
push 0x4293f5
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
test ebx, ebx
je 0x403c72
push 0x2000
push edi
push dword [0x44ba60]
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
lea eax, [eax + 0x42d3ee]
push 0x40a781
push eax
call dword [sym.imp.KERNEL32.dll_lstrcmpiA]
test eax, eax
je 0x403b54
push 0
push 0x4293f5
push edi
call dword [sym.imp.KERNEL32.dll_CopyFileA]
test eax, eax
je 0x403c72
push 0
push 0x4293f5
call fcn.00406184
cmp byte [0x476000], 0
je 0x403c2b
push 0x476000
push edi
call fcn.0040643b
jmp 0x403c31
push edi
call fcn.00405f87
push 0x40a7f8
push esi
call fcn.00406459
push dword [esp + 0x1c]
push esi
call fcn.00406459
push str.___
push esi
call fcn.00406459
push edi
push esi
call fcn.00406459
push esi
call fcn.00405f40
push ebp
push esi
call fcn.00405c6b
test eax, eax
je 0x403c72
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 0x403b9d
jmp 0x403b54
cmp dword [0x44baf4], 0
je 0x403d27
mov esi, str.ADVAPI32.dll
push str.OpenProcessToken
push esi
call fcn.0040683b
push str.LookupPrivilegeValueA
push esi
mov ebp, eax
call fcn.0040683b
push str.AdjustTokenPrivileges
push esi
mov edi, eax
call fcn.0040683b
xor esi, esi
mov ebx, eax
cmp ebp, esi
je 0x403d13
cmp edi, esi
je 0x403d13
cmp ebx, esi
je 0x403d13
lea eax, [esp + 0x1c]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call ebp
test eax, eax
je 0x403d13
lea eax, [esp + 0x24]
push eax
push str.SeShutdownPrivilege
push esi
call edi
push esi
push esi
lea eax, [esp + 0x28]
push esi
push eax
push esi
push dword [esp + 0x30]
mov dword [esp + 0x38], 1
mov dword [esp + 0x44], 2
call ebx
push esi
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x403d27
push 9
call fcn.0040154d
mov eax, dword [0x44bb0c]
cmp eax, 0xffffffff
je 0x403d35
mov dword [esp + 0x18], eax
push dword [esp + 0x18]
call dword [sym.imp.KERNEL32.dll_ExitProcess]