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ONE Sentinel

securitySecurity/M365 SECURITY/HIGH

From poisoned search results to GPU mining: A cryptojacking campaign abusing ScreenConnect and Microsoft .NET utilities

sourceMicrosoft Security Blog
calendar_todayMay 26, 2026
schedule1 min read
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EXECUTIVE SUMMARY

Cryptojacking Campaign Exploits ScreenConnect and .NET Utilities via SEO Poisoning

Summary

Microsoft has uncovered a cryptojacking campaign that leverages SEO poisoning and ScreenConnect to compromise high-performance PCs. The campaign also uses AI chatbots to direct users to malicious sites.

Key Points

  • Microsoft identified a cryptojacking campaign exploiting SEO poisoning techniques.
  • The campaign targets high-performance PCs using ScreenConnect and Microsoft .NET utilities.
  • Malicious sites are promoted through AI chatbots, increasing exposure.
  • The campaign aims to utilize the GPU power of compromised systems for cryptocurrency mining.

Analysis

This cryptojacking campaign is significant as it combines multiple attack vectors, including SEO poisoning and AI chatbot manipulation, to increase its reach and effectiveness. By targeting high-performance PCs, the attackers can maximize their cryptocurrency mining output, potentially leading to significant financial gains. The use of ScreenConnect and .NET utilities highlights the need for vigilance in monitoring and securing remote access tools and software frameworks.

Conclusion

IT professionals should ensure robust security measures are in place to detect and mitigate SEO poisoning and unauthorized use of remote access tools. Regular monitoring and updates of software frameworks like .NET are crucial to prevent exploitation.