This blog post was written by Colin GradyWilliam Largent, and Jaeson Schultz.

Emotet is still evolving, five years after its debut as a banking trojan. It is one of the world’s most dangerous botnets and malware droppers-for-hire. The malware payloads dropped by Emotet serve to more fully monetize their attacks, and often include additional banking trojans, information stealers, email harvesters, self-propagation mechanisms and even ransomware.

At the beginning of June 2019, Emotet’s operators decided to take an extended summer vacation. Even the command and control (C2) activities saw a major pause in activity. However, as summer begins drawing to a close, Talos and other researchers started to see increased activity in Emotet’s C2 infrastructure. And as of Sept. 16, 2019, the Emotet botnet has fully reawakened, and has resumed spamming operations once again. While this reemergence may have many users scared, Talos’ traditional Emotet coverage and protection remains the same. We have a slew of new IOCs to help protect users from this latest push, but past Snort coverage will still block this malware, as well traditional best security practices such as avoiding opening suspicious email attachments and using strong passwords.

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Talos Group

Talos Security Intelligence & Research Group