Adversaries may schedule data exfiltration to be performed only at certain times of day or at certain intervals. This could be done to blend traffic patterns with normal activity or availability. When scheduled exfiltration is used, other exfiltration techniques likely apply as well to transfer the information out of the network, such as Exfiltration Over C2 Channel or Exfiltration Over Alternative Protocol.
Detection of cron-based or script-based recurring transfers where the same script, user, or destination reappears at predictable intervals.
Recurring network exfiltration initiated by scheduled or script-based processes exhibiting time-based regularity and consistent external destinations.
LaunchAgent or launchd recurring jobs initiating data transfer to consistent external IPs or domains with repeat timing signatures.