Question:
I ran a completely anti-virus scan on my laptop yesterday, the anti-virus software report that lsmass.exe was infected by Trojan.Win32.Inject.cptz , ask me to get rid of the lsmass.exe Trojan. Is lsmass.exe a Trojan? Some technical website report that the lsmass.exe is a windows system file, what should I do with lsmass.exe on my pc?
Answer:
We have found 35 different files with filename lsmass.exe, 7 files of them were related to windows NT Kernel & System, these files is safety. But we also found some Trojan hide themselves as lsmass.exe, 28 files are unsafe, 80% of these files are detected as Threaten:
Trojan.ADH [Avast antivirus pro]
Trojan.Win32.Inject.cptz [Avast anti-spyware pro]
Generic.dx!b2dh [McAfee]
VirTool:MSIL/Injector.gen!I [Microsoft]
Trojan.Win32.Inject [Ikarus]
These Trojan could update your system registry like this:
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run]
Windows-Network Component = "%ProgramFiles%\Common
Files\lsmass.exe"
If the lsmass.exe Trojan update your registry successfully it could run automatically when your Windows startup.
If you suspect the file lsmass.exe on your computer, we recommend you run avast anti-virus to scan for the hidden threatens, and then run wise pc doctor to fix the damaged dll files and registry.
More details:
How to get rid of Lsmass.exe virus/Trojan/worms automatically?
You will need to download and burn into CDROM several programs on clean PC or copy them to USB Disk to remove virus. Here is the instruction:
Step A: copy the below programs to USB disk (you can use an MP3 player) or Burn them to CD:
- Avast Pro Antispyware software(free of charge) .Please download with this Download Link.
2.Wise PC Doctor:with this download link to restore damaged registry values.
Step B: Restart your computer. At this point you need to gently Press the F8 key repeatedly when you find the startup menu, Select the option “ Safe Mode with Networking” by using the arrow key, then press Enter key on your keyboard , and your computer will start into Windows Safe Mode.
Step C: Now you need to install Avast Pro Antispyware on your computer, When the program is installed， your need update its database to the latest, then reboot your computer to make the program fully functional, Go Step B to reboot your computer into Safe Mode and do a complete scan for your computer .
NOTE:
(1)In case you have some problems running Avast Pro Antispyware, you may rename the downloaded file name to explorer.exe or iexplore.exe. After that double click the download file and follow the install steps.
(2) Please make file extension show before renaming download file.
Step D: After finish the full scan, click "Show Results" and be sure that the important data aren’t removed and infected. Select or ignore the scan result and click "Remove Selected" button to get rid of the virus and malwares. Avast Pro Antispyware will give you a report to indicate all operations for this scan. It can be saved as you want. Restart your computer and the Avast Pro Antispyware will get rid of all virus or malwares which are detected before.
Step E: How to erase bad registry? Please install Wise PC Doctor– the best PC cleaner can easily fix your broken registry values and restore registry values.
Why Wise PC Doctor should be used?
As we all know, virus, Trojans and Malwares make the computer breakdown by destroying and modifying the registry values so that the computer will not run normally.
After the virus, Trojans and Malwares are removed, the registry remains to be destroyed or modified, therefore the computer’s system still has some problems. That’s why you really need to fix the registry. Furthermore, some virus, Malwares and Trojans leave many dll data in the registry and this may cause damaged DLL errors and also have an effect on the computer’s system performance.
In any other case Uninstall or install software may make your registry database fragmented, with corrupted, harmful and obsolete files. Do a complete scan for your computer by Wise PC Doctor at this moment.
Step F: Run Wise PC Doctor to repair your computer:
1. Install Wise PC Doctor.
2. Click "One-Click Fix", do a complete scan for your computer.
3. Click “Repair All” then fix all detected problems.