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OSSEC / HIDS Rule 61130

Rule family: OSSEC / HIDS
Rule ID: 61130
Definition status: Present in current source
Alert message / subject: The value for the parameter to the browser service was illegal
Rule level: 8
Definition checked: 2026-10-21

Interpretation and response

The Windows browser service reported an illegal parameter value. Inspect its configuration and associated system events.

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.

The historical ptrace/process-attachment explanation refers to an earlier use of this ID.

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.

Rule ID

61130

Status

The wiki marked this rule Active at the source revision. Current definition status is shown above.

Description

The Windows browser service reported an illegal parameter value. Inspect its configuration and associated system events.

False Positives

None.

Tuning Recommendations

None.

Notes

Plesk is known to attach ptrace to its processes to prevent reverse engineering. Here are some log examples:

Illustrative event summary (not a captured log): OSSEC/HIDS 61130 — The value for the parameter to the browser service was illegal.

Source and revision

Migrated from HIDS_61130, wiki page 515, revision 4595 (20140323). 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 .