ABUSE.MOM
THREAT REPORT

IP Threat Report
13.229.99.151

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-27 06:31:41
First seen: 2026-05-19 01:25:43
Last seen: 2026-05-24 10:21:38
70

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 70/100. Total malicious requests observed: 256.

BURST
01

Geolocation & Classification

IP Address
13.229.99.151
Type
Hosting
Country
🇸🇬 Singapore
City
Singapore
ISP
Amazon Technologies Inc.
Organization
AWS EC2 (ap-southeast-1)
Autonomous System
AS16509 Amazon.com, Inc.
Hit Count
256
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 11/2sAbnormally fast request rate — automated scanning+35
Burst 14/10sAbnormally fast request rate — automated scanning+35
Σ = 70
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 01:25:43
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 11/2s (+35), Burst 14/10s (+35)
2026-05-24 10:21:38
Last malicious request observed
Total score reached: 70/100
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 13.229.99.151 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 13.229.99.151.

09

Blacklist Status (DNSBL)

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

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

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

10

Threat Analysis

13.229.99.151 has been assigned a threat score of 70/100 (High). At this threat level, the IP is considered high risk. Firewall rules should be updated to deny traffic from this source.

The following attack categories were identified:

Request Flooding

📊 Threat Analysis

Network traffic from 13.229.99.151, located in Singapore, Singapore, operating on the network of Amazon Technologies Inc., has been classified as malicious by our automated threat scoring engine. The address has been active for 5 days in our monitoring system, producing 256 flagged requests at a rate of ~51.2/day. This address belongs to a datacenter or cloud hosting provider. Hosting IPs are frequently leveraged by threat actors who rent cheap VPS instances specifically for conducting attacks. Rate-based attacks from this IP aim to overwhelm server resources through high-volume request flooding. With 102 flagged addresses, Singapore represents a significant presence in our threat database. A threat score of 70/100 places this IP in the high-risk category. Blocking at the firewall level is 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 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

💡 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.

💡 Subnet-Level vs IP-Level Blocking

When multiple IPs in a subnet show malicious behavior, subnet blocking efficiently neutralizes the threat. However, overly broad blocking risks impacting legitimate users. Analysis of subnet ownership and historical behavior guides appropriate blocking scope.

🔍 Check Any IP Address

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