ABUSE.MOM
THREAT REPORT

IP Threat Report
3.145.135.138

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-26 21:53:26
First seen: 2026-05-19 15:57:20
Last seen: 2026-05-24 10:08:43
145

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 145/100. Total malicious requests observed: 217.

BOT_UABURSTREFERERUA_CHANGED
01

Geolocation & Classification

IP Address
3.145.135.138
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
217
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 10/2sAbnormally fast request rate — automated scanning+35
Burst 13/10sAbnormally fast request rate — automated scanning+35
Foreign refererReferer from unrelated external domain+10
UA bot: pythonKnown 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

2026-05-19 15:57:20
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 10/2s (+35), Burst 13/10s (+35), Foreign referer (+10)
2026-05-24 10:08:43
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 3.145.135.138 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 3.145.135.138 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 3.145.135.138: 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
bl.blocklist.de
✓ Clean
zen.spamhaus.org
✓ Clean
dnsbl.dronebl.org
✓ Clean
bl.spamcop.net
✓ Clean
psbl.surriel.com
✓ Clean
b.barracudacentral.org
✓ Clean
cbl.abuseat.org

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

10

Threat Analysis

3.145.135.138 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

Our monitoring infrastructure has identified 3.145.135.138, geolocated to Dublin, United States, operating on the network of Amazon.com, Inc., as a source of suspicious network activity. The address has been active for 4 days in our monitoring system, producing 217 flagged requests at a rate of ~54.3/day. 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. Two attack patterns were identified (Request Flooding and User-Agent Anomaly), suggesting a semi-automated campaign that targets multiple vulnerabilities. United States currently accounts for 130 blocked IPs in our database, making it a significant source of malicious traffic. With a threat score of 145/100, 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 States

104.28.246.115 (350)104.28.246.113 (340)104.28.246.116 (340)104.28.235.58 (340)104.28.246.122 (340)View all →

🏢 Same network: AS16509

15.220.152.241 (320)18.219.106.176 (315)15.220.169.114 (280)108.136.131.13 (265)54.206.58.169 (263)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.

💡 Autonomous System Analysis

Analyzing attack patterns at the AS (Autonomous System) level reveals which networks harbor the most malicious activity. Some ASes have abuse rates orders of magnitude higher than average, indicating lax enforcement of acceptable use policies.

🔍 Check Any IP Address

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