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ASN REPORT — AS27895 · Núcleo S.A.

First sighted: Nov. 7, 2023, 2 a.m. · Last sighted: Jan. 11, 2026, 1:59 a.m.

Risk
3 (low)
Total hits
2066
Total errors
395
Observed IPs
1668
Top country
N/A
Top city
N/A

Risk

Model: v1 Computed: 2026-01-18 11:54:52
Risk score
3
Low
Risk gradient
Key drivers are enriched against the published annotator catalog when available; otherwise sensible defaults are used.
Key drivers
Credential brute forcing
Repeated authentication attempts consistent with password guessing or credential stuffing.
cred
Hits 20
Points 60.72
User-Agent anomaly
User-Agent signals look missing, inconsistent, or indicative of non-browser tooling.
ua
Hits 22
Points 2.19
Protocol anomaly
Request structure or protocol-level signals deviate from typical browser HTTP traffic.
proto
Hits 2
Points 1.38
Request size anomaly
Requests are unusually large or shaped in a way that suggests abuse or automation.
request_size
Hits 4
Points

Traffic

Rollup

Daily activity (hits per day) and basic HTTP rollup counters for this ASN.

Loading activity…
Daily activity (hits per day). Total in window: —.
Traffic rollup
HTTP status classes, URL diversity, and totals.
2xx
486
3xx
1179
4xx
372
5xx
23
Unique URLs
1742
Total hits
2066
First seen
Nov. 7, 2023, 2 a.m.
Last seen
Jan. 11, 2026, 1:59 a.m.

Annotators (All-time)

Heatmap of annotator × severity. Darker cells mean more volume in that band. Tip: switch to Weighted points to see what drives impact (not just noise).

Severity →
Low High
Credential brute forcing cred
Repeated authentication attempts consistent with password guessing or credential stuffing.
hits 20 pts 60.72
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
10 8 1 31.02 May 12, 2024, 6:41 p.m. Jan. 13, 2025, 10:57 p.m.
cred 8
12 6 1 29.70 May 12, 2024, 6:41 p.m. Jan. 13, 2025, 10:57 p.m.
cred 6
0 6 1 0.00 May 12, 2024, 6:41 p.m. Jan. 13, 2025, 10:57 p.m.
cred 6
User-Agent anomaly ua
User-Agent signals look missing, inconsistent, or indicative of non-browser tooling.
hits 22 pts 2.19
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
8 19 1 1.98 Aug. 23, 2025, 3:19 a.m. Nov. 8, 2025, 10:04 a.m.
ua 19
6 3 1 0.22 Sept. 28, 2025, 1:12 a.m. Nov. 28, 2025, 6:37 a.m.
ua 3
Protocol anomaly proto
Request structure or protocol-level signals deviate from typical browser HTTP traffic.
hits 2 pts 1.38
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
12 2 1 1.38 June 22, 2025, 1:46 a.m. June 22, 2025, 2:48 a.m.
proto 2
Request size anomaly request_size
Requests are unusually large or shaped in a way that suggests abuse or automation.
hits 4 pts 0.00
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
0 4 1 0.00 Oct. 4, 2025, 9:59 p.m. Oct. 11, 2025, 8:36 p.m.
request_size 4

HTTP Status Breakdown

Response mix grouped by status class (2xx/3xx/4xx/5xx). Auto-loads a single aggregation and renders a donut.

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Running one aggregation and rendering the chart.

Geolocation

Live geolocation and map tiles auto-load for this ASN snapshot (peer IPs with coordinates).

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SUBNETS HELD BY THIS ISP

Derived from ISP snapshot peers (Option A). Grouped into IPv4 /24 and IPv6 /48 by default.
IPv4
IPv6
Limit
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Interesting IPs

Top risky peers inside this ASN (latest snapshot). Sorted by risk score, then hits.

No peer rows available for this ASN snapshot.