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wuauclt.exe. Is it a virus?

The wuauclt.exe could be a SDBOT. Sometimes it’s called QQROB-AAQ, LAZAR.B and CULT-B.

It’s not absolutely clear which product this file is part of and who is its author. It’s a hidden file. Wuauclt.exe is usually located in the %WINDOWS% folder and its usual size is 58,656 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.


Disable and delete the wuauclt.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 wuauclt.exe.

We also recommend scanning your computer.

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General Information

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: SDBOTCommon path(s): %WINDOWS%
subfolder in %SYSTEM%
subfolder in %WINDOWS%
Keywords(s): trojan, worm, monitor, hiddenFilesize(s): 58,656 bytes, 60,519 bytes, 17,039 bytes, 196,608 bytes

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