MALWARE-CNC -- Snort has detected a Comand and Control (CNC) rule violation, most likely for commands and calls for files or other stages from the control server. The alert indicates a host has been infiltrated by an attacker, who is using the host to make calls for files, as a call-home vector for other malware-infected networks, for shuttling traffic back to bot owners, etc.
MALWARE-CNC Cobalt Strike DNS beacon outbound TXT record
This rule looks for a DNS TXT record query to a CobaltStrike server. Specifically, it looks for the default query name associated with CobaltStrike DNS beacons.
This event is generated a host infected with CobaltStrike is identified.
No public information
No known false positives
Cisco Talos Intelligence Group
No rule groups
None
No information provided
None
Tactic: Command and Control
Technique: Commonly Used Port
For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org
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