Recurring rare domain access to dynamic DNS domain
Synopsis
Activation Period
14 Days
Training Period
30 Days
Test Period
N/A (single event)
Deduplication Period
14 Days
Required Data
Requires one of the following data sources: Palo Alto Networks Firewall traffic Logs OR XDR Agent OR Third-Party Firewalls
ATT&CK Tactic
Command and Control (TA0011)
ATT&CK Technique
Application Layer Protocol (T1071)
Severity
Low
Description
The endpoint is periodically connecting to an external domain that it and its peers rarely use. Access to this domain has occurred repeatedly over multiple days. This connection pattern is consistent with malware connecting to its command and control server for updates and operating instructions.
Attacker's Goals
Communicate with malware running on your network to control malware activities, perform software updates on the malware, or to take inventory of infected machines.
Investigative actions
Identify the process/user contacting the remote domain and determine whether the traffic is malicious.
Look for other endpoints on your network that are also periodically contacting the suspicious domain.
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