How to remove the lssass virus

Most antivirus programs identify lssass.exe as malware—for example TrendMicro identifies it as TROJ_SPNR.0BB713 or TROJ_SPNR.09K411, and Microsoft identifies it as Trojan:Win32/Bumat!rts or Trojan:Win32/Scrarev.A.

The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.

Click to Run a Free Virus Scan for the lssass.exe malware

Lssass.exe file information

The process lssass.exe has no valid information about its manufacturer.

Description: Lssass.exe is not essential for Windows and will often cause problems. The lssass.exe file is located in a subfolder of the user's profile folder. Known file sizes on Windows 10/8/7/XP are 13,179,660 bytes (33% of all occurrences), 12,488,482 bytes, 10,339,106 bytes, 11,748,623 bytes or 12,494,444 bytes. 
There is no information about the author of the file. The program is not visible. Lssass.exe is not a Windows system file. The application is loaded during the Windows boot process (see Registry key: Run). Lssass.exe is able to record keyboard and mouse inputs, monitor applications and manipulate other programs. Therefore the technical security rating is 89% dangerous, however you should also read the user reviews.

Recommended: Identify lssass.exe related errors

If lssass.exe is located in a subfolder of "C:\Program Files", the security rating is 68% dangerous. The file size is 937,472 bytes (50% of all occurrences) or 2,223,286 bytes. The file is a file with no information about its developer. The process starts when Windows starts (see Registry key: Run). The file is not a Windows core file. Lssass.exe is able to record keyboard and mouse inputs, monitor applications and manipulate other programs.

Important: You should check the lssass.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

Very dangerous, is the source of continuous RAT attacks which norton has blocked thankfully

Summary: Average user rating of lssass.exe: based on 1 vote with 1 user comment. One user thinks lssass.exe is dangerous and recommends removing it.

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Best practices for resolving lssass issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active lssass process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the lssass.exe on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

lssass.exe [all]