OSSEC / HIDS Rule 18103

OSSEC / HIDS rule catalog

• Rule family: OSSEC / HIDS
• Rule ID: 18103
• Definition status: Present in current source
• Alert message / subject: Windows error event.
• Rule level: 5
• Definition checked: 2026-10-21

Interpretation and response

This event is recorded as “Windows error event.” Review the originating log and the affected host or service to determine whether the activity was expected.

An OSSEC/HIDS event records or correlates activity. Blocking depends on the originating application and any separately configured Active Response policy; an alert alone does not prove that an attack was blocked.

Documentation

The following guidance was migrated from the historical wiki and reviewed against the rule definition. Legacy ASL product names and interface instructions refer to the versions documented then. Use the current metadata above and your installed configuration when interpreting thresholds, notification settings and response behavior.

Description

An error has occurred on Windows. This is a generic error from Microsoft.

Troubleshooting

False Positives

A legitimate event may still trigger this rule. Review the surrounding activity before deciding whether it is malicious.

Tuning Guidance

There is no guidance for tuning this rule, this is a generic Windows error and the rule should not be disabled.

Source and revision

Migrated from HIDS_18103, wiki page 733, revision 6084 (20201019). Documentation review: 2026-10-21. An archived wiki status of Active is not a current deployment status.

For assistance, provide the rule ID, installed product and rule version, and a sanitized event to Atomicorp support .