Function at 0x42f280
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
mov ebp, esp
push 0xffffffffffffffff
push 0x59b4a0
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x204
push ebx
push esi
push edi
lea eax, [ebp - 0x28]
mov dword [ebp - 0x10], esp
xor esi, esi
push eax
push 0x28
mov dword [ebp - 4], esi
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call dword [sym.imp.ADVAPI32.dll_OpenProcessToken]
test eax, eax
je 0x42f2f0
lea ecx, [ebp - 0x34]
push ecx
push str.SeRestorePrivilege
push esi
call dword [sym.imp.ADVAPI32.dll_LookupPrivilegeValueA]
mov eax, dword [ebp - 0x28]
push esi
push esi
lea edx, [ebp - 0x38]
push esi
push edx
push esi
push eax
mov dword [ebp - 0x38], 1
mov dword [ebp - 0x2c], 2
call dword [sym.imp.ADVAPI32.dll_AdjustTokenPrivileges]
mov ecx, dword [0x65ca8c]
mov dword [ebp - 0x18], esi
mov dword [ebp - 0x14], ecx
mov ecx, 0x25
xor eax, eax
lea edi, [ebp - 0x210]
lea edx, [ebp - 0x210]
rep stosd dword es:[edi], eax
push edx
mov byte [ebp - 4], 1
mov dword [ebp - 0x210], 0x94
call dword [sym.imp.KERNEL32.dll_GetVersionExA]
test eax, eax
je 0x42f4bf
cmp dword [ebp - 0x200], 2
jne 0x42f4bf
push str.shell32
call dword [sym.imp.KERNEL32.dll_LoadLibraryA]
mov ebx, eax
cmp ebx, esi
je 0x42f3fe
push str.SHGetFolderPathA
push ebx
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
mov esi, eax
test esi, esi
je 0x42f3ec
push 0
call dword [sym.imp.ole32.dll_CoInitialize]
lea eax, [ebp - 0x13c]
push eax
push 0
push 0
push 0x1a
push 0
call esi
test eax, eax
jne 0x42f3e6
lea edi, [ebp - 0x13c]
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
not ecx
add ecx, 0xfffffffe
mov dword [ebp - 0x1c], ecx
mov al, byte [ebp + ecx - 0x13c]
cmp al, 0x5c
mov eax, 0x660ff8
je 0x42f3ab
mov eax, 0x6384b8
lea ecx, [ebp - 0x13c]
push eax
push ecx
lea edx, [ebp - 0x14]
push str._s_sDMCache
push edx
call fcn.0057f8fb
mov eax, dword [ebp - 0x14]
add esp, 0x10
push eax
call fcn.0056c982
mov ecx, dword [ebp - 0x14]
add esp, 4
push ecx
call dword [sym.imp.KERNEL32.dll_GetFileAttributesA]
cmp eax, 0xffffffff
je 0x42f3e6
mov dword [ebp - 0x18], 1
call dword [sym.imp.ole32.dll_CoUninitialize]
push ebx
call dword [sym.imp.KERNEL32.dll_FreeLibrary]
mov eax, dword [ebp - 0x18]
test eax, eax
jne 0x42f5d4
lea edx, [ebp - 0x24]
push edx
push 1
push 0
push str.SoftwareMicrosoftWindowsCurrentVersionExplorerShell_Folders
push reloc.WSOCK32.dll_accept
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyExA]
test eax, eax
jne 0x42f4bf
mov edx, dword [ebp - 0x24]
lea eax, [ebp - 0x1c]
lea ecx, [ebp - 0x13c]
push eax
push ecx
push 0
push 0
push str.AppData
push edx
mov dword [ebp - 0x1c], 0x104
call dword [sym.imp.ADVAPI32.dll_RegQueryValueExA]
test eax, eax
jne 0x42f4aa
lea edi, [ebp - 0x13c]
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
not ecx
add ecx, 0xfffffffe
mov dword [ebp - 0x1c], ecx
mov al, byte [ebp + ecx - 0x13c]
cmp al, 0x5c
mov eax, 0x660ff8
je 0x42f46f
mov eax, 0x6384b8
push eax
lea eax, [ebp - 0x13c]
push eax
lea ecx, [ebp - 0x14]
push str._s_sDMCache
push ecx
call fcn.0057f8fb
mov edx, dword [ebp - 0x14]
add esp, 0x10
push edx
call fcn.0056c982
mov eax, dword [ebp - 0x14]
add esp, 4
push eax
call dword [sym.imp.KERNEL32.dll_GetFileAttributesA]
cmp eax, 0xffffffff
je 0x42f4aa
mov dword [ebp - 0x18], 1
mov ecx, dword [ebp - 0x24]
push ecx
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
mov eax, dword [ebp - 0x18]
test eax, eax
jne 0x42f5d4
lea edx, [ebp - 0x13c]
push 0x104
push edx
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
test eax, eax
je 0x42f5b7
lea edi, [ebp - 0x13c]
or ecx, 0xffffffff
xor eax, eax
repne scasb al, byte es:[edi]
not ecx
add ecx, 0xfffffffe
mov dword [ebp - 0x1c], ecx
mov al, byte [ebp + ecx - 0x13c]
cmp al, 0x5c
mov eax, 0x660ff8
je 0x42f503
mov eax, 0x6384b8
push eax
lea eax, [ebp - 0x13c]
push eax
lea ecx, [ebp - 0x14]
push str._s_sDMCache
push ecx
call fcn.0057f8fb
mov edx, dword [ebp - 0x14]
add esp, 0x10
push edx
call fcn.0056c982
mov eax, dword [ebp - 0x200]
add esp, 4
cmp eax, 2
jne 0x42f5a8
lea eax, [ebp - 0x18]
lea ecx, [ebp - 0x17c]
push eax
push ecx
mov dword [ebp - 0x18], 0x40
call dword [sym.imp.ADVAPI32.dll_GetUserNameA]
test eax, eax
jne 0x42f563
lea edx, [ebp - 0x17c]
push str.default_user
push edx
call fcn.0056b4da
add esp, 8
mov eax, dword [ebp - 0x1c]
mov cl, byte [ebp + eax - 0x13c]
mov eax, 0x660ff8
cmp cl, 0x5c
je 0x42f57c
mov eax, 0x6384b8
lea ecx, [ebp - 0x17c]
lea edx, [ebp - 0x13c]
push ecx
push eax
push edx
lea eax, [ebp - 0x14]
push str._s_sDMCache_s
push eax
call fcn.0057f8fb
mov ecx, dword [ebp - 0x14]
add esp, 0x14
push ecx
call fcn.0056c982
add esp, 4
mov edx, dword [ebp - 0x14]
push edx
call dword [sym.imp.KERNEL32.dll_GetFileAttributesA]
cmp eax, 0xffffffff
jne 0x42f5d4
lea ecx, [ebp - 0x14]
mov byte [ebp - 4], 0
call fcn.00586b33
mov ecx, dword [ebp - 0xc]
pop edi
pop esi
mov dword fs:[0], ecx
pop ebx
mov esp, ebp
pop ebp
ret
mov eax, dword [0x65ca8c]
mov dword [ebp - 0x20], eax
mov ecx, dword [ebp - 0x14]
lea edx, [ebp - 0x20]
push ecx
push str._s_settings.bak
push edx
mov byte [ebp - 4], 2
call fcn.0057f8fb
mov eax, dword [ebp - 0x20]
add esp, 0xc
push eax
call dword [sym.imp.KERNEL32.dll_GetFileAttributesA]
cmp eax, 0xffffffff
je 0x42f6e8
cmp dword [ebp - 0x200], 2
jne 0x42f626
mov ecx, dword [ebp - 0x20]
mov edx, dword [0x6614e8]
push 0
push ecx
push edx
call dword [sym.imp.ADVAPI32.dll_RegRestoreKeyA]
jmp 0x42f68b
mov eax, dword [ebp - 0x20]
push eax
push str.idmtmp
push reloc.WSOCK32.dll_closesocket
call dword [sym.imp.ADVAPI32.dll_RegLoadKeyA]
test eax, eax
jne 0x42f67b
push str.shlwapi.dll
call dword [sym.imp.KERNEL32.dll_LoadLibraryA]
mov esi, eax
test esi, esi
je 0x42f67b
push str.SHCopyKeyA
push esi
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
test eax, eax
je 0x42f674
mov ecx, dword [0x6614e8]
push 0
push ecx
push str.idmtmp
push reloc.WSOCK32.dll_closesocket
call eax
push esi
call dword [sym.imp.KERNEL32.dll_FreeLibrary]
push str.idmtmp
push reloc.WSOCK32.dll_closesocket
call dword [sym.imp.ADVAPI32.dll_RegDeleteKeyA]
push str.C:Program_FilesSpyhunter
call dword [sym.imp.KERNEL32.dll_GetFileAttributesA]
cmp eax, 0xffffffff
je 0x42f6d1
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 0x42f6e8
push 1
push 0
push 0
push str.http:__www.internetdownloadmanager.com_support_damaged_keys.html
push 0x636f3c
push 0
call dword [sym.imp.SHELL32.dll_ShellExecuteA]
jmp 0x42f6e8
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]
lea ecx, [ebp - 0x20]
mov byte [ebp - 4], 1
call fcn.00586b33
jmp 0x42f5b7