It’s ransomware, or maybe a disk wiper, and it’s striking targets in Israel

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Researchers say they’ve uncovered never-before-seen disk-wiping malware that’s disguising itself as ransomware as it unleashes destructive attacks on Israeli targets.

Apostle, as researchers at security firm SentinelOne are calling the malware, was initially deployed in an attempt to wipe data but failed to do so, likely because of a logic flaw in its code. The internal name its developers gave it was “wiper-action.” In a later version, the bug was fixed and the malware gained full-fledged ransomware behaviors, including the leaving of notes demanding victims pay a ransom in exchange for a decryption key.

A clear line

In a post published Tuesday, SentinelOne researchers said they assessed with high confidence that, based on the code and the servers Apostle reported to, the malware was being used by a never-before-seen group with ties to the Iranian government. While a ransomware note they recovered suggested that Apostle had been used against a critical facility in the United Arab Emirates, the primary target was Israel.

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