unsafe file




The lsass.exe could be a WEBUS.B. Sometimes it’s called ADCLICK-AG and VIRAN-A.

It’s not absolutely clear which product this file is part of and who is its author. It’s a hidden file. This files starts on Windows startup and uses local network and the Internet. Lsass.exe is usually located in the %WINDOWS% folder and its usual size is 52,177 bytes.

This file is a trojan. Trojans can steal important data from your computer. This file is a network worm. Worms can significantly decrease your Internet connection speed and download new malware onto your computer. This file enables a culprit to access your computer, steal your data, and take total control over your computer.


Disable and delete the lsass.exe process as soon as possible. Most likely it is a virus, a trojan, or some other malware. Before disabling this file make sure it is not a legitimate file that is also called lsass.exe.


Security risk: Free spyware & virus scanRegistry Errors: Free scan (run Registry Cleaner)Uninstallation: N/A Uninstall (run Unistall Manager)Disk & Memory Usage: N/A Free scan (run Task Manager)


Process: WEBUS.BCommon path(s): %WINDOWS%
subfolder in %WINDOWS%
subfolder in %PROGRAM_FILES%
subfolder in %SYSTEM%
subfolder in %DOCS_SETTINGS%
Keywords(s): startup, trojan, worm, monitor, hidden, net, backdoorFilesize(s): 52,177 bytes, 49,152 bytes, 84,992 bytes, 42,301 bytes, 8,919 bytes, 32,858 bytes, 198,144 bytes, 1,198,096 bytes, 20,057 bytes, 275,542 bytes, 51,339 bytes, 432,655 bytes, 51,310 bytes, 245,872 bytes, 13,312 bytes, 227,519 bytes, 47,206 bytes, 150,654 bytes, 182,732 bytes, 981,190 bytes, 92,785 bytes, 943,295 bytes, 1,173,471 bytes, 46,170 bytes, 960,512 bytes, 344,064 bytes, 3,724 bytes, 389,751 bytes, 25,770 bytes, 27,136 bytes, 106,496 bytes, 282,185 bytes, 7,439,390 bytes, 830,991 bytes, 40,960 bytes, 29,853 bytes, 42,675 bytes, 46,123 bytes, 732,160 bytes, 589,312 bytes, 386,120 bytes, 766,464 bytes, 69,632 bytes, 146,944 bytes, 74,752 bytes, 407,516 bytes, 170,537 bytes, 42,639 bytes, 884,726 bytes, 45,373 bytes, 93,700 bytes, 977,920 bytes

User opinions

lsass.exe has the following rating: 2.0
based on 3 user opinions.
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by Xannon on Jan 2, 2012 at 07:30 AM

I'm iemrpssed. You've really raised the bar with that.

0 | 0
by TECHGUY on Oct 9, 2009 at 04:05 AM

How can we tell the difference both files look the same? which one is the infected one?

1 | 1
by vINNY on Jun 6, 2009 at 12:06 PM

Exist two Lsass.exe, one type is a part of windows operating system, other type is a worm. Virus Lsass.exe is very dangerus, slow yoour conection and download other malware

7 | 1
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