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 User-Agent known malicious user-agent string - Mirai
This rule looks for the string: Hello, world as the User-Agent string inside of an HTTP request. This string has been seen to be used as an initial step of the Mirai botnet to download malicious artifacts.
This rule looks for a malicious User Agent string belonging to the Mirai botnet
No public information
No known false positives
Cisco Talos Intelligence Group
No rule groups
None
No information provided
None
Tactic: Command and Control
Technique: Custom Command and Control Protocol
For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org
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