Threat LevelMEDIUM24/1001 rule type
1 incident on record · last seen 6d ago
| PTR | 187-109-88-111.rdfnet.com.br |
| Org / ASN | RDF Informatica Ltda |
| Country | BR |
Attack Analysis
Reconnaissance Behind Browser Disguise
This IP generated repeated HTTP 4xx errors (404/403) while spoofing a legitimate browser User-Agent (Chrome, Firefox). Real browsers do not repeatedly trigger 4xx errors in rapid succession — this is an automated scanner disguised as human traffic to evade bot detection.
Reports (1)
| Date | Severity | Description |
|---|---|---|
| 26 May 2026 - 19:54 | high | Rule 100305: Web: 4xx error with browser-like UA |