ABUSE.MOM
THREAT REPORT

IP Threat Report
18.171.239.235

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-09-13 02:11:31
First seen: 2026-09-06 17:34:09
Last seen: 2026-09-13 01:15:14
118

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 118/100. Total malicious requests observed: 195.

BURSTMETHODRATIO_404UA_SUS
01

Geolocation & Classification

IP Address
18.171.239.235
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
195
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Burst 14/2sAbnormally fast request rate — automated scanning+35
Burst 22/10sAbnormally fast request rate — automated scanning+35
POST seenBehavioral anomaly detected by automated analysis+8
UA suspiciousBehavioral anomaly detected by automated analysis+15
Σ = 118
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

2026-09-06 17:34:09
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio >= 60% (+25), Burst 14/2s (+35), Burst 22/10s (+35)
2026-09-13 01:15:14
Last malicious request observed
Total score reached: 118/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Amazon Technologies Inc.
AS16509 · 🇬🇧 United Kingdom
06

Recommendations

Actions taken & recommended

  • IP 18.171.239.235 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

🔎 Path Enumeration Protection

Block scanning from 18.171.239.235: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🌊 Traffic Flood Defense

IP 18.171.239.235 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

🤖 User-Agent Anomaly Defense

IP 18.171.239.235 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

09

Blacklist Status (DNSBL)

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

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

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

10

Threat Analysis

18.171.239.235 has been assigned a threat score of 118/100 (Critical). This places it in the critical threat category. Immediate blocking is strongly advised across all network perimeters.

The following attack categories were identified:

Path EnumerationRequest FloodingUser-Agent Anomaly

📊 Threat Analysis

The address 18.171.239.235 originates from London, United Kingdom, operating on the network of Amazon Technologies Inc.. It was identified through automated analysis of incoming network traffic across monitored endpoints. The address has been active for 6 days in our monitoring system, producing 195 flagged requests at a rate of ~32.5/day. 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 combination of 3 distinct attack vectors indicates a sophisticated, multi-pronged threat actor deploying automated tools that probe multiple attack surfaces simultaneously. With 103 flagged addresses, United Kingdom represents a significant presence in our threat database. A score of 118/100 places this address in the top tier of severity. Block and investigate any historical connections.

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)104.28.240.60 (340)104.28.192.67 (340)104.28.208.60 (340)194.32.120.30 (320)View all →

🏢 Same network: AS16509

35.180.172.183 (298)3.129.218.216 (288)18.191.74.68 (288)34.244.9.175 (288)51.44.13.36 (288)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.

💡 User-Agent Analysis Techniques

Analyzing User-Agent strings reveals automated tools masquerading as legitimate browsers. Inconsistencies between claimed browser capabilities and actual behavior, impossible version combinations, and known scanner signatures help identify malicious clients.

🔍 Check Any IP Address

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