173.40.48.21

Threat LevelMEDIUM27/1001 rule type
2 incidents on record · last seen 6d ago
PTR syn-173-040-048-021.res.spectrum.com
Org / ASN Spectrum
Country 🇺🇸 United States
City Saginaw, Michigan
Timezone America/Detroit

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 (2)

Date Severity Description
27 May 2026 - 10:42 high Rule 100305: Web: 4xx error with browser-like UA
27 May 2026 - 00:35 high Rule 100305: Web: 4xx error with browser-like UA