Russian Sandworm Hackers Deploy New Data-Wipers Against Ukraine’s Government and Grain Sector

Russian state-backed hacking group Sandworm has intensified its destructive cyber operations in Ukraine, deploying several families of data-wiping malware against organizations in the government, education, logistics, energy, and grain industries. According to a new report by cybersecurity firm ESET, the attacks occurred in June and September and form part of a broader pattern of digital sabotage carried out by Sandworm—also known as APT44—throughout the conflict. 

Data wipers differ fundamentally from ransomware, which typically encrypts and steals data for extortion. Wipers are designed solely to destroy information by corrupting files, damaging disk partitions, or deleting master boot records in ways that prevent recovery. The resulting disruption can be severe, especially for critical Ukrainian institutions already strained by wartime pressures. Since Russia’s invasion, Ukraine has faced repeated wiper campaigns attributed to state-aligned actors, including PathWiper, HermeticWiper, CaddyWiper, WhisperGate, and IsaacWiper.

ESET’s report documents advanced persistent threat (APT) activity between April and September 2025 and highlights a notable escalation: targeted attacks against Ukraine’s grain sector. Grain exports remain one of the country’s essential revenue streams, and ESET notes that wiper attacks on this industry reflect an attempt to erode Ukraine’s economic resilience. The company reports that Sandworm deployed multiple variants of wiper malware during both June and September, striking organizations responsible

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