A new remote access trojan (RAT) called “Resolver RAT” is being seen across the globe in phishing emails. Researchers believe it may become one of the most popular infostealers in recent years. Actors are using the previously undocumented tool, which features very sophisticated methods of avoiding detection by email services, in new phishing campaigns. The Resolver RAT was first discovered last month by researchers looking into phishing attacks against healthcare and pharmaceutical organizations. 

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