Box Shield Detected Anomalous Download Activity

from panther_base_helpers import deep_get
from panther_box_helpers import box_parse_additional_details


def rule(event):
    if event.get("event_type") != "SHIELD_ALERT":
        return False
    alert_details = box_parse_additional_details(event).get("shield_alert", {})
    if alert_details.get("rule_category", "") == "Anomalous Download":
        if alert_details.get("risk_score", 0) > 50:
            return True
    return False


def title(event):
    details = box_parse_additional_details(event)
    description = deep_get(details, "shield_alert", "alert_summary", "description")

    if description:
        return description
    return (
        f"Anomalous download activity triggered by user "
        f"[{event.deep_get('created_by', 'name', default='<UNKNOWN_USER>')}]."
    )