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New IcedID Malware Variants Observed in the Wild



IcedID, also known as BokBot, started off as a banking trojan in 2017. It's capable of delivering additional malware, including ransomware. The well-known IcedID version consists of an initial loader which contacts a Loader [command-and-control] server, downloads the standard DLL Loader, which then delivers the standard IcedID Bot. One of the new versions is a Lite variant that was previously highlighted as being dropped as a follow-on payload by the Emotet malware in November 2022. Also newly observed in February 2023 is a Forked variant of IcedID. Both these variants are designed to drop what's called a Forked version of IcedID Bot that leaves out the web injects and backconnect functionality that would typically be used for banking fraud. It's likely a cluster of threat actors is using modified variants to pivot the malware away from typical banking trojan and banking fraud activity to focus on payload delivery, which likely includes prioritizing ransomware delivery.

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