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Watchbog and the Importance of Patching

September 11, 2019

Cisco Incident Response (CSIRS) recently responded to an incident involving the Watchbog cryptomining botnet. The attackers were able to exploit CVE-2018-1000861 to gain a foothold and install the Watchbog malware on the affected systems.

This Linux-based malware relied heavily on Pastebin for command and control (C2) and operated openly. CSIRS gained an accurate understanding of the attacker’s intentions and abilities on a customer’s network by analyzing the various Pastebins. As the investigation progressed, CSIRS identified and de-obfuscated multiple pastes using artifacts left on compromised hosts.

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