itwbennett writes: Researchers at SentinelOne reverse engineered the latest variant of the BlackEnergy 3 rootkit (the same malware used in recent attacks against Ukraine's critical infrastructure) and found indicators that suggest it is being used by insiders and that it is the byproduct of a nation-sponsored campaign. 'BlackEnergy 3 exploits an Office 2013 vulnerability that was patched some time ago, so it only works if the target machine isn't patched or an employee (either deliberately or after being tricked into it) executes the malicious Excel document,' writes CSO's Steve Ragan.
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