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Microsoft Security Intelligence
Published Feb 28, 2024 | Updated Apr 10, 2024

Trojan:Win64/AVTamper.C

Detected by Microsoft Defender Antivirus

Aliases: No associated aliases

Summary

This is a detection of a trojan that takes advantage of a vulnerable or malicious driver to tamper with or stop security-related programs.

Users should take the following steps to mitigate the threat:

  • Keep your system, including antivirus programs and web browsers, updated. Regular updates are important for improved detection accuracy.
  • Use only trusted, well-known websites to reduce the risk of malicious programs. Turn on your antivirus to help detect infected or hacked sites.
  • Turn on Hypervisor-Protected Code Integrity (HVCI) or Windows Defender Application Control (WDAC)—or deploy new devices that have the security features on by default. Consider allowing only known safe software.

You can also visit our advanced troubleshooting page or search the Microsoft virus and malware community for more help.

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