A novel post-exploitation framework that allows the activity of its malicious actors to persist on their targets was exposed Wednesday by Crowdsrike’s Falcon OverWatch threat hunters. Dubbed IceApple, the .NET-based framework has been observed since late 2021 in multiple victim environments in geographically diverse locations with targets spanning the technology, academic and government sectors, according to CrowdStrike’s report.
Up to now, Falcon OverWatch’s threat hunters have found the framework only on Microsoft Exchange instances, but they said it’s capable of running under any Internet Information Services (IIS) web application and advise organizations to make sure their web apps are fully patched to avoid infection.
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