dns tunneling Archives - Unit42

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

A conceptual illustration showing a world map along with icons representing malware and other tools used by malicious actors

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OilRig Targets Middle Eastern Telecommunications Organization and Adds Novel C2 Channel with Steganography to Its Inventory

By Robert Falcone
July 22, 2020 at 6:00 AM

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18 min. read

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xHunt Campaign: New PowerShell Backdoor Blocked Through DNS Tunnel Detection

By Robert Falcone and Brittany Barbehenn
October 10, 2019 at 5:00 AM

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11 min. read

DNS Tunneling in the Wild: Overview of OilRig’s DNS Tunneling

By Robert Falcone
April 16, 2019 at 9:00 AM

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37 min. read

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DNS Tunneling: how DNS can be (ab)used by malicious actors

By Alex Hinchliffe
March 15, 2019 at 9:00 AM

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11 min. read

DarkHydrus delivers new Trojan that can use Google Drive for C2 communications

By Robert Falcone and Bryan Lee
January 18, 2019 at 10:40 AM

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14 min. read