“IsaacWiper” Malware Attack against Government Entity

ESET identified a further wiper in Ukrainian government networks, affecting organizations that had not been attacked by HermeticWiper and does not share any code similarity with it. On February 25, the attackers dropped a new version of IsaacWiper with debug logs, indicating that the attackers were unable to wipe some of the compromised machines. The malware was developed/employed at least since October 19, 2021.