ABUSE.MOM
THREAT REPORT

IP Threat Report
13.42.21.89

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-26 03:53:11
First seen: 2026-09-09 12:13:57
Last seen: 2026-09-13 01:14:04
93

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 93/100. Total malicious requests observed: 124.

BURSTMETHODUA_SUS
01

Geolocation & Classification

IP Address
13.42.21.89
Type
Hosting
Country
🇬🇧 United Kingdom
City
London
ISP
Amazon Technologies Inc.
Organization
AWS EC2 (eu-west-2)
Autonomous System
AS16509 Amazon.com, Inc.
Hit Count
124
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 53/10sAbnormally fast request rate — automated scanning+35
Burst 53/2sAbnormally fast request rate — automated scanning+35
POST seenBehavioral anomaly detected by automated analysis+8
UA suspiciousBehavioral anomaly detected by automated analysis+15
Σ = 93
03

Observed Activity

Reconstructed HTTP requests from server access logs. Target domains redacted for security.

[redacted]
GET
/
200
[redacted]
GET
/page
200
Requests shown: 2 · HTTP 404: 0 · Dangerous patterns: 0

* Typical request patterns for detected signatures. Actual target domains are redacted.

04

Timeline

2026-09-09 12:13:57
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 53/10s (+35), Burst 53/2s (+35), POST seen (+8)
2026-09-13 01:14:04
Last malicious request observed
Total score reached: 93/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Amazon Technologies Inc.
AS16509 · 🇬🇧 United Kingdom

We have detected 3946 malicious IPs from this autonomous system.

View all IPs from AS16509 →
06

Recommendations

Actions taken & recommended

  • IP 13.42.21.89 is blocked at application level (HTTP 403)
  • Consider blocking at firewall level (iptables/CSF) to reduce server load
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 13.42.21.89.

🤖 Bot Detection

Address UA spoofing from 13.42.21.89: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

09

Blacklist Status (DNSBL)

This IP was checked against major DNS-based blacklists used by mail servers and firewalls worldwide.

✓ Clean
spam.dnsbl.sorbs.net
✓ Clean
dnsbl.dronebl.org
✓ Clean
cbl.abuseat.org
✓ Clean
b.barracudacentral.org
✓ Clean
zen.spamhaus.org
✓ Clean
bl.blocklist.de
✓ Clean
psbl.surriel.com

Checked: Spamhaus, SpamCop, Barracuda, SORBS, CBL, UCEProtect. Results may change over time.

10

Threat Analysis

13.42.21.89 has been assigned a threat score of 93/100 (Critical). With this rating, the IP falls into the critical severity bracket — among the most dangerous addresses in our monitoring database.

The following attack categories were identified:

Request FloodingUser-Agent Anomaly

📊 Threat Analysis

IP address 13.42.21.89 has been traced to London, United Kingdom, operating on the network of Amazon Technologies Inc.. Our threat detection systems have flagged this address based on observed malicious behavior patterns. During its 3-day observation window, we recorded 124 hostile requests from this IP — roughly 41.3 per day on average. Classified as a hosting IP, this address likely runs on a rented server or cloud instance. Attackers prefer datacenter IPs for their high bandwidth and disposable nature. The dual attack vectors of Request Flooding combined with User-Agent Anomaly indicate a coordinated assault rather than opportunistic scanning. Our records show 3,204 malicious IPs originating from United Kingdom, positioning it as a major contributor to global threat activity. With a threat score of 93/100, this IP is among the most dangerous addresses in our database. Immediate and complete blocking is strongly recommended.

This IP belongs to a hosting or data center provider. Malicious traffic from hosting infrastructure often originates from compromised VPS instances, rented servers used for scanning campaigns, or abused free-tier cloud accounts. Hosting providers typically respond to abuse reports within 24-72 hours.

11

Related Threats

🇬🇧 Top threats from United Kingdom

45.86.203.126 (350)45.138.12.41 (350)91.230.225.114 (350)45.138.12.46 (350)185.192.71.72 (350)View all →

🏢 Same network: AS16509

15.220.152.241 (320)18.219.106.176 (315)3.26.255.172 (308)3.26.98.5 (308)35.180.172.183 (298)View all →
12

Security Intelligence

💡 DDoS Mitigation Approaches

Distributed denial of service attacks overwhelm infrastructure with traffic volume. Effective mitigation combines always-on traffic scrubbing, anycast network distribution, rate limiting, and the ability to quickly scale absorption capacity during attacks.

💡 Submarine Cable and Internet Exchange Points

Internet traffic routing through a limited number of submarine cables and exchange points creates natural chokepoints. Understanding these routing patterns helps explain geographic clustering of certain attack types and latency-based scanning behaviors.

🔍 Check Any IP Address

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