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Microsoft Security Intelligence
Published Mar 15, 2011 | Updated Aug 22, 2017

SystemTool

Detected by Microsoft Defender Antivirus

Aliases: Win32/Winwebsec (other) Rogue:Win32/Winwebsec (other) System Tool (other) MS Removal Tool (other)

Summary

Microsoft Defender Antivirus detects and removes this threat.

This threat can perform a number of actions of a malicious actor's choice on your device.

Find out ways that malware can get on your device.

Devices affected by this threat might exhibit the following unexpected behavior in your device:

  • Slow performance
  • Presence of added or modified files
  • Changes in desktop settings
  • Freezing or crashing
  • Diminished storage space
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