ABUSE.MOM
THREAT REPORT

IP Threat Report
18.221.188.211

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-08-16 15:37:40
First seen: 2026-08-14 01:14:12
Last seen: 2026-08-16 01:02:14
145

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 145/100. Total malicious requests observed: 66.

BOT_UABURSTREFERERUA_CHANGED
01

Geolocation & Classification

IP Address
18.221.188.211
Type
Hosting
Country
🇺🇸 United States
City
Dublin
ISP
Amazon.com, Inc.
Organization
AWS EC2 (us-east-2)
Autonomous System
AS16509 Amazon.com, Inc.
Hit Count
66
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 10/2sAbnormally fast request rate — automated scanning+35
Burst 11/10sAbnormally fast request rate — automated scanning+35
Foreign refererReferer from unrelated external domain+10
UA bot: Go-http-clientKnown bot/crawler User-Agent detected+40
UA changedMultiple User-Agents — bot rotation technique+25
Σ = 145
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

2026-08-14 01:14:12
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 10/2s (+35), Burst 11/10s (+35), Foreign referer (+10)
2026-08-16 01:02:14
Last malicious request observed
Total score reached: 145/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Amazon.com, Inc.
AS16509 · 🇺🇸 United States
06

Recommendations

Actions taken & recommended

  • IP 18.221.188.211 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

🌊 Traffic Flood Defense

IP 18.221.188.211 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

🤖 Bot Detection

Address UA spoofing from 18.221.188.211: 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
zen.spamhaus.org
✓ Clean
cbl.abuseat.org
✓ Clean
bl.blocklist.de
✓ Clean
spam.dnsbl.sorbs.net
✓ Clean
dnsbl.dronebl.org
✓ Clean
psbl.surriel.com
✓ Clean
b.barracudacentral.org

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

10

Threat Analysis

18.221.188.211 has been assigned a threat score of 145/100 (Critical). This represents a critical risk level. Our detection systems have flagged multiple high-confidence indicators of malicious intent from this address.

The following attack categories were identified:

Request FloodingUser-Agent Anomaly

📊 Threat Analysis

18.221.188.211 is registered in Dublin, United States, operating on the network of Amazon.com, Inc.. This IP first appeared in our threat feeds after triggering multiple behavioral detection signatures. Over a period of 1 days, this IP generated 66 malicious requests, averaging approximately 66 requests per 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 dual attack vectors of Request Flooding combined with User-Agent Anomaly indicate a coordinated assault rather than opportunistic scanning. Our records show 131 malicious IPs originating from United States, positioning it as a significant contributor to global threat activity. A score of 145/100 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

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🏢 Same network: AS16509

35.180.172.183 (298)3.129.218.216 (288)18.191.74.68 (288)34.244.9.175 (288)3.72.250.64 (280)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.

💡 Log Correlation and SIEM Integration

Correlating logs across web servers, firewalls, DNS, and authentication systems reveals attack patterns invisible in individual log sources. Modern SIEM platforms use statistical analysis to connect related events across time and systems.

🔍 Check Any IP Address

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