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ASN REPORT — AS42821 · K&K Kommunikationssysteme GmbH

First sighted: March 10, 2025, 2 a.m. · Last sighted: Dec. 18, 2025, 2 a.m.

Risk
94 (high)
Total hits
781
Total errors
292
Observed IPs
21
Top country
The Netherlands
Top city
Eygelshoven
Top region
Limburg

Risk

Model: v1 Computed: 2026-02-27 17:09:49
Risk score
94
High
Risk gradient
Key drivers are enriched against the published annotator catalog when available; otherwise sensible defaults are used.
Key drivers
Sensitive file probing
Requests target commonly sensitive files, configs, backups, or administrative resources.
sfp
Hits 538
Points 3822.72
Command injection attempts
Request content resembles attempts to execute OS commands via an application.
cmdi
Hits 83
Points 2113.10
Path traversal attempts
Request paths/parameters resemble attempts to access files outside intended directories.
trav
Hits 120
Points 846.04
Credential brute forcing
Repeated authentication attempts consistent with password guessing or credential stuffing.
cred
Hits 56
Points 185.90
Scan velocity
High request rate and broad endpoint coverage suggest scanning or automated enumeration.
scan_velocity
Hits 46
Points 75.24
User-Agent anomaly
User-Agent signals look missing, inconsistent, or indicative of non-browser tooling.
ua
Hits 273
Points 43.96
HTTP method anomaly
Unusual or unexpected HTTP methods observed for the target endpoints.
method
Hits 18
Points 8.64
Automated client behavior
Traffic patterns strongly suggest automation rather than a human-operated browser.
bot
Hits 3
Points 1.40

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
489
3xx
0
4xx
292
5xx
0
Unique URLs
0
Total hits
781
First seen
March 10, 2025, 2 a.m.
Last seen
Dec. 18, 2025, 2 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
Sensitive file probing sfp
Requests target commonly sensitive files, configs, backups, or administrative resources.
hits 538 pts 3822.72
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
40 221 34 1944.80 March 10, 2025, 2:56 a.m. Dec. 14, 2025, 11:04 p.m. —
36 95 2 752.40 March 10, 2025, 2:53 a.m. March 23, 2025, 4:29 p.m. —
24 103 34 543.84 March 10, 2025, 2:57 a.m. Dec. 14, 2025, 11:38 p.m. —
34 59 2 441.32 March 10, 2025, 2:53 a.m. March 23, 2025, 4:28 p.m. —
8 55 1 96.80 March 10, 2025, 2:54 a.m. March 10, 2025, 2:56 a.m. —
44 4 1 38.72 March 10, 2025, 2:54 a.m. March 10, 2025, 2:54 a.m. —
22 1 1 4.84 March 10, 2025, 2:56 a.m. March 10, 2025, 2:56 a.m. —
Command injection attempts cmdi
Request content resembles attempts to execute OS commands via an application.
hits 83 pts 2113.10
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
30 81 2 2065.50 March 10, 2025, 2:53 a.m. March 23, 2025, 4:29 p.m. —
28 2 2 47.60 March 10, 2025, 2:53 a.m. March 23, 2025, 4:28 p.m. —
Path traversal attempts trav
Request paths/parameters resemble attempts to access files outside intended directories.
hits 120 pts 846.04
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
28 59 2 429.52 March 10, 2025, 2:53 a.m. March 23, 2025, 4:28 p.m. —
26 59 2 398.84 March 10, 2025, 2:53 a.m. March 23, 2025, 4:28 p.m. —
34 2 2 17.68 March 10, 2025, 2:56 a.m. March 23, 2025, 4:29 p.m. —
Credential brute forcing cred
Repeated authentication attempts consistent with password guessing or credential stuffing.
hits 56 pts 185.90
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
10 19 1 104.50 March 10, 2025, 2:53 a.m. March 10, 2025, 2:55 a.m. —
8 17 1 74.80 March 10, 2025, 2:53 a.m. March 10, 2025, 2:55 a.m. —
12 1 1 6.60 March 10, 2025, 2:55 a.m. March 10, 2025, 2:55 a.m. —
0 19 1 0.00 March 10, 2025, 2:53 a.m. March 10, 2025, 2:55 a.m. —
Scan velocity scan_velocity
High request rate and broad endpoint coverage suggest scanning or automated enumeration.
hits 46 pts 75.24
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
10 20 1 36.00 March 10, 2025, 2:53 a.m. March 10, 2025, 2:57 a.m. —
20 4 1 14.40 March 10, 2025, 2:56 a.m. March 10, 2025, 2:56 a.m. —
18 4 1 12.96 March 10, 2025, 2:56 a.m. March 10, 2025, 2:56 a.m. —
14 3 1 7.56 March 10, 2025, 2:56 a.m. March 10, 2025, 2:56 a.m. —
12 2 1 4.32 March 10, 2025, 2:57 a.m. March 10, 2025, 2:57 a.m. —
0 13 1 0.00 March 10, 2025, 2:53 a.m. March 10, 2025, 2:57 a.m. —
User-Agent anomaly ua
User-Agent signals look missing, inconsistent, or indicative of non-browser tooling.
hits 273 pts 43.96
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
8 268 7 42.88 March 10, 2025, 2:53 a.m. Dec. 17, 2025, 3:18 a.m. —
10 3 2 0.60 Oct. 7, 2025, 6:06 a.m. Dec. 14, 2025, 7:34 a.m. —
12 2 2 0.48 Sept. 29, 2025, 5:07 p.m. Nov. 28, 2025, 5:38 p.m. —
HTTP method anomaly method
Unusual or unexpected HTTP methods observed for the target endpoints.
hits 18 pts 8.64
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
8 18 3 8.64 July 30, 2025, 8:39 p.m. Dec. 17, 2025, 3:18 a.m. —
Automated client behavior bot
Traffic patterns strongly suggest automation rather than a human-operated browser.
hits 3 pts 1.40
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
10 2 2 1.00 Sept. 19, 2025, 9:52 a.m. Oct. 8, 2025, 5:11 a.m. —
8 1 1 0.40 Oct. 5, 2025, 6:12 a.m. Oct. 5, 2025, 6:12 a.m. —

HTTP Status Breakdown

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

Loading status mix…
Running one aggregation and rendering the chart.

Geolocation

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

Loading map…

SUBNETS HELD BY THIS ISP

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

Interesting IPs

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

213.209.143.30 high
Open report
100 /100
Last seen 2025-03-24 02:00
Hits
239
Errors
124
Country
The Netherlands
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.143.71 high
Open report
91 /100
Last seen 2025-07-04 03:00
Hits
344
Errors
73
Country
The Netherlands
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.157.162 high
Open report
77 /100
Last seen 2025-12-15 02:00
Hits
80
Errors
49
Country
Germany
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.157.117 low
Open report
13 /100
Last seen 2025-09-23 03:00
Hits
20
Errors
0
Country
Germany
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.157.197 low
Open report
3 /100
Last seen 2025-10-11 03:00
Hits
8
Errors
1
Country
Germany
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.157.254 low
Open report
3 /100
Last seen 2025-11-07 02:00
Hits
8
Errors
7
Country
Germany
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.157.218 low
Open report
3 /100
Last seen 2025-12-15 02:00
Hits
3
Errors
1
Country
Germany
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.143.116 low
Open report
2 /100
Last seen 2025-08-18 03:00
Hits
14
Errors
2
Country
The Netherlands
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.157.24 low
Open report
2 /100
Last seen 2025-11-07 02:00
Hits
5
Errors
4
Country
Germany
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.143.52 low
Open report
1 /100
Last seen 2025-12-18 02:00
Hits
17
Errors
17
Country
The Netherlands
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.157.239 low
Open report
1 /100
Last seen 2025-10-08 03:00
Hits
6
Errors
2
Country
Germany
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.143.35 low
Open report
1 /100
Last seen 2025-04-25 03:00
Hits
3
Errors
3
Country
The Netherlands
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.157.108 low
Open report
1 /100
Last seen 2025-09-20 03:00
Hits
2
Errors
0
Country
Germany
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.157.232 low
Open report
0 /100
Last seen 2025-10-24 03:00
Hits
21
Errors
6
Country
Germany
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.143.49 low
Open report
0 /100
Last seen 2025-12-02 02:00
Hits
2
Errors
0
Country
The Netherlands
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.143.94 low
Open report
0 /100
Last seen 2025-04-29 03:00
Hits
2
Errors
1
Country
The Netherlands
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.143.117 low
Open report
0 /100
Last seen 2025-12-15 02:00
Hits
2
Errors
2
Country
The Netherlands
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.157.216 low
Open report
0 /100
Last seen 2025-09-16 03:00
Hits
2
Errors
0
Country
Germany
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.143.44 low
Open report
0 /100
Last seen 2025-09-21 03:00
Hits
1
Errors
0
Country
The Netherlands
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.143.125 low
Open report
0 /100
Last seen 2025-08-19 03:00
Hits
1
Errors
0
Country
The Netherlands
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH
213.209.143.130 low
Open report
0 /100
Last seen 2025-03-26 02:00
Hits
1
Errors
0
Country
The Netherlands
ASN
AS42821
AS Org
K&K Kommunikationssysteme GmbH