Function at 0x448e20
Capabilities:
Check if file exists
Check os version
Create process on windows
Delete registry key
Get common file path
Get file attributes
Get session user name
Persist via run registry key
Query or enumerate registry value
Set registry value

Disassembly:
push ebp
lea ebp, [esp - 0x1dc]
sub esp, 0x1dc
push 0xffffffffffffffff
push 0x63b030
mov eax, dword fs:[0]
push eax
sub esp, 0x30
mov eax, dword [0x7496c8]
xor eax, ebp
mov dword [ebp + 0x1d8], eax
push ebx
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov dword [ebp - 0x10], esp
xor ebx, ebx
mov dword [ebp - 4], ebx
lea eax, [ebp - 0x28]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call dword [sym.imp.ADVAPI32.dll_OpenProcessToken]
test eax, eax
je 0x448ea8
lea ecx, [ebp - 0x38]
push ecx
push str.SeRestorePrivilege
push ebx
call dword [sym.imp.ADVAPI32.dll_LookupPrivilegeValueA]
mov dword [ebp - 0x3c], 1
mov dword [ebp - 0x30], 2
push ebx
push ebx
push ebx
lea edx, [ebp - 0x3c]
push edx
push ebx
mov eax, dword [ebp - 0x28]
push eax
call dword [sym.imp.ADVAPI32.dll_AdjustTokenPrivileges]
mov dword [ebp - 0x20], ebx
lea ecx, [ebp - 0x14]
call fcn.00402500
mov byte [ebp - 4], 1
push 0x94
push ebx
lea ecx, [ebp]
push ecx
call fcn.00613900
add esp, 0xc
mov dword [ebp], 0x94
lea edx, [ebp]
push edx
call dword [sym.imp.KERNEL32.dll_GetVersionExA]
test eax, eax
je 0x44906d
cmp dword [ebp + 0x10], 2
jne 0x44906d
push 0x66d488
call fcn.00446c90
add esp, 4
mov edi, eax
cmp edi, ebx
je 0x448faf
push str.SHGetFolderPathA
push edi
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
mov esi, eax
test esi, esi
je 0x448fa0
push 0
call dword [sym.imp.ole32.dll_CoInitialize]
lea eax, [ebp + 0xd4]
push eax
push 0
push 0
push 0x1a
push 0
call esi
test eax, eax
jne 0x448f9a
lea eax, [ebp + 0xd4]
lea edx, [eax + 1]
nop
mov cl, byte [eax]
inc eax
test cl, cl
jne 0x448f40
sub eax, edx
dec eax
mov dword [ebp - 0x1c], eax
cmp byte [ebp + eax + 0xd4], 0x5c
mov eax, 0x66b96c
je 0x448f61
mov eax, 0x66ee6c
push eax
lea ecx, [ebp + 0xd4]
push ecx
push str._s_sDMCache
lea edx, [ebp - 0x14]
push edx
call fcn.00402f80
mov eax, dword [ebp - 0x14]
push eax
call fcn.00617a4a
add esp, 0x14
mov ecx, dword [ebp - 0x14]
push ecx
call dword [sym.imp.KERNEL32.dll_GetFileAttributesA]
cmp eax, 0xffffffff
je 0x448f9a
mov ebx, 1
mov dword [ebp - 0x20], ebx
call dword [sym.imp.ole32.dll_CoUninitialize]
push edi
call dword [sym.imp.KERNEL32.dll_FreeLibrary]
test ebx, ebx
jne 0x44915f
lea edx, [ebp - 0x24]
push edx
push 1
push 0
push str.SoftwareMicrosoftWindowsCurrentVersionExplorerShell_Folders
push 0x80000001
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyExA]
test eax, eax
jne 0x44906d
mov dword [ebp - 0x1c], 0x104
lea eax, [ebp - 0x1c]
push eax
lea ecx, [ebp + 0xd4]
push ecx
push 0
push 0
push 0x674c6c
mov edx, dword [ebp - 0x24]
push edx
call dword [sym.imp.ADVAPI32.dll_RegQueryValueExA]
test eax, eax
jne 0x44905b
lea eax, [ebp + 0xd4]
lea edx, [eax + 1]
mov cl, byte [eax]
inc eax
test cl, cl
jne 0x449001
sub eax, edx
dec eax
mov dword [ebp - 0x1c], eax
cmp byte [ebp + eax + 0xd4], 0x5c
mov eax, 0x66b96c
je 0x449022
mov eax, 0x66ee6c
push eax
lea eax, [ebp + 0xd4]
push eax
push str._s_sDMCache
lea ecx, [ebp - 0x14]
push ecx
call fcn.00402f80
mov edx, dword [ebp - 0x14]
push edx
call fcn.00617a4a
add esp, 0x14
mov eax, dword [ebp - 0x14]
push eax
call dword [sym.imp.KERNEL32.dll_GetFileAttributesA]
cmp eax, 0xffffffff
je 0x44905b
mov ebx, 1
mov dword [ebp - 0x20], ebx
mov ecx, dword [ebp - 0x24]
push ecx
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
test ebx, ebx
jne 0x44915f
push 0x104
lea edx, [ebp + 0xd4]
push edx
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
test eax, eax
je 0x4491b1
lea eax, [ebp + 0xd4]
lea edx, [eax + 1]
mov cl, byte [eax]
inc eax
test cl, cl
jne 0x449090
sub eax, edx
dec eax
mov dword [ebp - 0x1c], eax
cmp byte [ebp + eax + 0xd4], 0x5c
mov eax, 0x66b96c
je 0x4490b1
mov eax, 0x66ee6c
push eax
lea eax, [ebp + 0xd4]
push eax
push str._s_sDMCache
lea ecx, [ebp - 0x14]
push ecx
call fcn.00402f80
mov edx, dword [ebp - 0x14]
push edx
call fcn.00617a4a
add esp, 0x14
cmp dword [ebp + 0x10], 2
jne 0x449149
mov dword [ebp - 0x2c], 0x40
lea eax, [ebp - 0x2c]
push eax
lea ecx, [ebp + 0x94]
push ecx
call dword [sym.imp.ADVAPI32.dll_GetUserNameA]
test eax, eax
jne 0x449109
push 0x674c5c
lea edx, [ebp + 0x94]
push edx
call fcn.0061611b
add esp, 8
mov eax, dword [ebp - 0x1c]
cmp byte [ebp + eax + 0xd4], 0x5c
mov eax, 0x66b96c
je 0x449120
mov eax, 0x66ee6c
lea ecx, [ebp + 0x94]
push ecx
push eax
lea edx, [ebp + 0xd4]
push edx
push str._s_sDMCache_s
lea eax, [ebp - 0x14]
push eax
call fcn.00402f80
mov ecx, dword [ebp - 0x14]
push ecx
call fcn.00617a4a
add esp, 0x18
mov edx, dword [ebp - 0x14]
push edx
call dword [sym.imp.KERNEL32.dll_GetFileAttributesA]
cmp eax, 0xffffffff
je 0x4491b1
mov dword [ebp - 0x20], 1
lea ecx, [ebp - 0x18]
call fcn.00402500
mov byte [ebp - 4], 2
mov eax, dword [ebp - 0x14]
push eax
push str._s_settings.bak
lea ecx, [ebp - 0x18]
push ecx
call fcn.00402f80
add esp, 0xc
mov edx, dword [ebp - 0x18]
push edx
call dword [sym.imp.KERNEL32.dll_GetFileAttributesA]
cmp eax, 0xffffffff
je 0x4492a6
cmp dword [ebp + 0x10], 2
jne 0x4491e2
push 0
mov eax, dword [ebp - 0x18]
push eax
mov ecx, dword [0x74ea0c]
push ecx
call dword [sym.imp.ADVAPI32.dll_RegRestoreKeyA]
jmp 0x449249
mov byte [ebp - 4], 0
lea ecx, [ebp - 0x14]
call fcn.00402570
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov ecx, dword [ebp + 0x1d8]
xor ecx, ebp
call fcn.00613241
add ebp, 0x1dc
mov esp, ebp
pop ebp
ret
mov edx, dword [ebp - 0x18]
push edx
push str.idmtmp
push 0x80000003
call dword [sym.imp.ADVAPI32.dll_RegLoadKeyA]
test eax, eax
jne 0x449239
push str.shlwapi.dll
call fcn.00446c90
add esp, 4
mov esi, eax
test esi, esi
je 0x449239
push str.SHCopyKeyA
push esi
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
test eax, eax
je 0x449232
push 0
mov ecx, dword [0x74ea0c]
push ecx
push str.idmtmp
push 0x80000003
call eax
push esi
call dword [sym.imp.KERNEL32.dll_FreeLibrary]
push str.idmtmp
push 0x80000003
call dword [sym.imp.ADVAPI32.dll_RegDeleteKeyA]
push str.C:Program_FilesSpyhunter
call dword [sym.imp.KERNEL32.dll_GetFileAttributesA]
cmp eax, 0xffffffff
je 0x44928f
push 0x10004
push str.Intenet_Download_Manager
push str.Internet_Download_Manager_detected_that_its_registry_keys_had_been_damaged_since_the_last_run._Its_possible_that_you_run_a_flaky_spyware_remover_program_like_Spyhunter_which_corrupted_system_registry._Internet_Download_Manager_will_try_to_restore_all_damaged_data__but_some_data_may_remain_corrupted._r_nWould_you_like_to_see_additional_information_about_this_problem_
push 0
call dword [sym.imp.USER32.dll_MessageBoxA]
cmp eax, 6
jne 0x4492a6
push 1
push 0
push 0
push str.https:__www.internetdownloadmanager.com_support_damaged_keys.html
push 0x66adac
push 0
call dword [sym.imp.SHELL32.dll_ShellExecuteA]
jmp 0x4492a6
push 0x10000
push str.Intenet_Download_Manager
push str.Internet_Download_Manager_detected_that_its_registry_keys_had_been_damaged_since_the_last_run._Its_possible_that_you_run_a_flaky_spyware_remover_program_which_corrupted_system_registry._Internet_Download_Manager_will_try_to_restore_all_damaged_data__but_some_data_may_remain_corrupted.
push 0
call dword [sym.imp.USER32.dll_MessageBoxA]
mov byte [ebp - 4], 1
lea ecx, [ebp - 0x18]
call fcn.00402570
mov byte [ebp - 4], 0
lea ecx, [ebp - 0x14]
call fcn.00402570
mov dword [ebp - 4], 0xffffffff
jmp 0x4491bd