ABUSE.MOM
THREAT REPORT

IP Threat Report
18.143.138.207

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-21 19:05:07
First seen: 2026-03-24 14:00:07
Last seen: 2026-03-24 14:00:08
155

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 155/100. Total malicious requests observed: 2.

DANGER_PATHBURST
01

Geolocation & Classification

IP Address
18.143.138.207
Type
Hosting
Country
🇸🇬 Singapore
City
Singapore
ISP
Amazon Technologies Inc.
Organization
AWS EC2 (ap-southeast-1)
Autonomous System
AS16509 Amazon.com, Inc.
Hit Count
2
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger strong hits: 1High-risk paths: shells, RCE vectors, exploits+25
Danger medium hits: 19Medium-risk: admin panels, config files+60
Burst: 13 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 21 req / 10sAbnormally fast request rate — automated scanning+35
Σ = 155
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

2026-03-24 14:00:07
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger strong hits: 1 (+25), Danger medium hits: 19 (+60), Burst: 13 req / 2s (+35)
2026-03-24 14:00:08
Last malicious request observed
Total score reached: 155/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Amazon Technologies Inc.
AS16509 · 🇸🇬 Singapore
06

Recommendations

Actions taken & recommended

  • IP 18.143.138.207 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 18.143.138.207 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

09

Blacklist Status (DNSBL)

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

✓ Clean
dnsbl.sorbs.net
✓ Clean
ix.dnsbl.manitu.net
✓ Clean
zen.spamhaus.org
✓ Clean
bl.spamcop.net
✓ Clean
dnsbl-1.uceprotect.net
✓ Clean
psbl.surriel.com
✓ Clean
b.barracudacentral.org
✓ Clean
truncate.gbudb.net

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

10

Threat Analysis

18.143.138.207 has been assigned a threat score of 155/100 (Critical). A score this high marks a critical threat actor. This address has demonstrated persistent, aggressive malicious behavior across multiple detection vectors.

The following attack categories were identified:

Request Flooding

📊 Threat Analysis

The address 18.143.138.207 originates from Singapore, Singapore, operating on the network of Amazon Technologies Inc.. It was identified through automated analysis of incoming network traffic across monitored endpoints. Our sensors captured 2 malicious requests from this address across a 1-day span, reflecting a sustained attack cadence of ~2 requests per 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. The IP is engaged in request flooding, sending traffic at rates designed to exhaust server capacity. Singapore currently accounts for 102 blocked IPs in our database, making it a significant source of malicious traffic. A score of 155/100 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 Singapore

85.203.23.12 (340)85.203.23.31 (330)84.17.39.195 (325)192.166.246.30 (325)85.203.21.101 (320)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

💡 XML External Entity (XXE) Attacks

XXE vulnerabilities in XML parsers allow attackers to read local files, perform SSRF, and execute denial of service attacks. Many legacy applications and APIs remain vulnerable to XXE due to insecure default XML parser configurations.

💡 Security Header Best Practices

HTTP security headers provide defense-in-depth with minimal implementation effort. Key headers include Strict-Transport-Security, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, and Permissions-Policy, each addressing specific attack vectors.

🔍 Check Any IP Address

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