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Jan 30, 2026 • ESET WeLiveSecurity

DynoWiper update: Technical analysis and attribution

ESET researchers have published technical analysis of DynoWiper, a data destruction malware used in an attack targeting a Polish energy sector company. This...

Source
ESET WeLiveSecurity
Category
malware
Severity
critical

Executive Summary

ESET researchers have published technical analysis of DynoWiper, a data destruction malware used in an attack targeting a Polish energy sector company. This destructive malware incident represents a significant threat to critical infrastructure, as successful data wiping operations can cause prolonged operational disruption and potentially impact energy supply capabilities. The attack demonstrates sophisticated tradecraft aimed at maximum impact through data destruction rather than data theft. Organizations in critical infrastructure sectors should ensure robust backup strategies, implement network segmentation, deploy endpoint detection solutions capable of identifying destructive behaviors, and maintain offline backups to enable recovery from such attacks.

Summary

ESET researchers present technical details on a recent data destruction incident affecting a company in Poland’s energy sector

Published Analysis

ESET researchers have published technical analysis of DynoWiper, a data destruction malware used in an attack targeting a Polish energy sector company. This destructive malware incident represents a significant threat to critical infrastructure, as successful data wiping operations can cause prolonged operational disruption and potentially impact energy supply capabilities. The attack demonstrates sophisticated tradecraft aimed at maximum impact through data destruction rather than data theft. Organizations in critical infrastructure sectors should ensure robust backup strategies, implement network segmentation, deploy endpoint detection solutions capable of identifying destructive behaviors, and maintain offline backups to enable recovery from such attacks. ESET researchers present technical details on a recent data destruction incident affecting a company in Poland’s energy sector ESET researchers present technical details on a recent data destruction incident affecting a company in Poland’s energy sector

Linked Entities

  • DynoWiper