Buggy implementation of CVE-2018-8373 vulnerability used to deliver Quasar RAT

A threat actor implements a newer vulnerability exploited in Internet Explorer to serve up the Quasar RAT and diversify the portfolio of attacks.

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Get your RAT on Pastebin

A dropper we analyzed downloaded the code for part of its payload from Pastebin on the fly. The payload turned out to be a RAT with keylogging capabilities.

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