C2 Archives - Unit42

A conceptual image representing malicious domains, such as those that can be identified by the proactive detector discussed in this piece.

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Detecting and Preventing Malicious Domains Proactively with DNS Security

By Zhanhao Chen and Daiping Liu
May 4, 2021 at 6:00 AM

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11 min. read

A conceptual image representing the concept of malware, such as that covered in this case study of Emotet Command and Control traffic.

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Emotet Command and Control Case Study

By Chris Navarrete and Yanhui Jia
April 9, 2021 at 12:00 PM

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9 min. read

A conceptual image representing malware, such as Emotet, discussed in this blog.

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Attack Chain Overview: Emotet in December 2020 and January 2021

By Chris Navarrete, Yanhui Jia, Matthew Tennis, Durgesh Sangvikar and Rongbo Shao
March 8, 2021 at 6:00 AM

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11 min. read

This conceptual image illustrates the idea of malware, such as the njRAT spreading through active Pastebin command and control tunnel that is discussed in this blog.

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njRAT Spreading Through Active Pastebin Command and Control Tunnel

By Yanhui Jia, Chris Navarrete and Haozhe Zhang
December 9, 2020 at 6:00 AM

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6 min. read

A conceptual image illustrating the concept of espionage, including the type of stealthy activity using backdoors that threat researchers observed the xHunt campaign using.

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xHunt Campaign: Newly Discovered Backdoors Using Deleted Email Drafts and DNS Tunneling for Command and Control

By Robert Falcone
November 9, 2020 at 12:00 AM

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12 min. read

Prince of Persia – Game Over

By Tomer Bar, Lior Efraim and Simon Conant
June 28, 2016 at 3:00 PM

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7 min. read