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Russian Cyber Group UNC5837 Targets European Governments with Phishing

4/9/2025

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Summary

Story summary

A Russian-linked cyberespionage group, UNC5837, has launched a sophisticated campaign against European government and military entities. By employing deceptive phishing emails containing .rdp files, they exploited remote desktop protocols to infiltrate systems, allowing them to siphon off sensitive data and access critical resources undetected since October 2024.

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Story summary

A Russian-linked cyberespionage group, UNC5837, has launched a sophisticated campaign against European government and military entities. By employing deceptive phishing emails containing .rdp files, they exploited remote desktop protocols to infiltrate systems, allowing them to siphon off sensitive data and access critical resources undetected since October 2024.