Working with IOCs

Indicators of compromise (IOCs) alert you about known malicious objects on your endpoints.
IOCs provide the ability to alert on known malicious objects on endpoints across the organization. You can load IOC lists from various threat-intelligence sources into the Cortex XDR app or define them individually.
Cortex XDR supports a maximum of 4,000,000 IOCs.
You can define the following types of IOCs:
  • Full path
  • File name
  • Domain
  • Destination IP address
  • MD5 hash
  • SHA256 hash
After you define or load IOCs, the app checks for matches in the endpoint data collected from Cortex XDR agents. Checks are both retroactive and ongoing: The app looks for IOC matches in all data collected in the past and continues to evaluate new any new data it receives in the future.
Alerts for IOCs are identified by a source type of IOC (see Cortex® XDR™ Alerts for more information).

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