Unusual Denied Traffic Activity on Sophos

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About the rule

Rule Type

Anomaly

Rule Description

Monitors abnormal denied traffic patterns in Sophos firewalls.

Severity

Attention

Rule Requirement

Criteria

Action1: actionname = "sophos_denied_traffic" | isanomalous(User at an unusual Time) | isanomalous(User with abnormal Count) | isanomalous(Log source at an unusual Time) | isanomalous(Log source with abnormal Count) | isanomalous(Log source with unusual Username) select Action1.HOSTNAME,Action1.USERNAME,Action1.SOURCE_IP,Action1.DEST_IP,Action1.DEST_PORT,Action1.DEST_INTERFACE,Action1.SOURCE_PORT,Action1.SOURCE_INTERFACE,Action1.PROTOCOL_TR,Action1.DEST_COUNTRY,Action1.MESSAGE

Detection

Execution Mode

Intelligent

Log Sources

Sophos