OneLogin Multiple Users Login Failures From The Same IP
This rule detects multiple failed login attempts from different users originating from the same IP address within a one-hour window in OneLogin. It specifically looks for 'USER_LOGIN' events with a 'BLOCK' security result and a product event type of '6' (user failed authentication). The rule also calculates a risk score, which is increased if the originating IP address is from certain unauthorized geographies (Cuba, Iran, North Korea, Russia, Syria). This behavior is indicative of potential brute-force attacks or credential stuffing attempts against multiple user accounts from a single source.
YARA-L
