ABUSE.MOM
THREAT REPORT

IP Threat Report
52.51.3.71

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-08-30 17:14:39
First seen: 2026-08-29 06:35:22
Last seen: 2026-08-30 00:59:49
238

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 238/100. Total malicious requests observed: 20.

BURSTDANGER_PATHMETHOD
01

Geolocation & Classification

IP Address
52.51.3.71
Type
Hosting
Country
🇮🇪 Ireland
City
Dublin
ISP
Amazon Technologies Inc.
Organization
AWS EC2 (eu-west-1)
Autonomous System
AS16509 Amazon.com, Inc.
Hit Count
20
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 164/10sAbnormally fast request rate — automated scanning+35
Burst 47/2sAbnormally fast request rate — automated scanning+35
Danger medium hits: 40Medium-risk: admin panels, config files+60
Danger strong hits: 241High-risk paths: shells, RCE vectors, exploits+100
POST seenBehavioral anomaly detected by automated analysis+8
Σ = 238
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

2026-08-29 06:35:22
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 164/10s (+35), Burst 47/2s (+35), Danger medium hits: 40 (+60)
2026-08-30 00:59:49
Last malicious request observed
Total score reached: 238/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Amazon Technologies Inc.
AS16509 · 🇮🇪 Ireland
06

Recommendations

Actions taken & recommended

  • IP 52.51.3.71 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 52.51.3.71.

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

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

10

Threat Analysis

52.51.3.71 has been assigned a threat score of 238/100 (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 Flooding

📊 Threat Analysis

52.51.3.71 is registered in Dublin, Ireland, operating on the network of Amazon Technologies Inc.. This IP first appeared in our threat feeds after triggering multiple behavioral detection signatures. During its 1-day observation window, we recorded 20 hostile requests from this IP — roughly 20 per day on average. The IP is classified as hosting/datacenter infrastructure, commonly associated with rented servers used for automated attack campaigns, botnet command-and-control, or vulnerability scanning at scale. Rate-based attacks from this IP aim to overwhelm server resources through high-volume request flooding. With 116 flagged addresses, Ireland represents a significant presence in our threat database. At 238/100, this is an extremely high-risk address. All traffic should be considered hostile.

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 Ireland

185.192.16.103 (295)185.192.16.17 (295)34.244.9.175 (288)20.223.155.224 (280)20.223.184.52 (280)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.

💡 DNS Sinkholing for Malware Defense

DNS sinkholing redirects queries for known malicious domains to controlled IP addresses. This technique blocks malware communication, prevents data exfiltration, and identifies compromised internal hosts attempting to contact command-and-control servers.

🔍 Check Any IP Address

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