ABUSE.MOM
THREAT REPORT

IP Threat Report
15.135.168.156

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-24 19:24:05
First seen: 2026-10-12 04:05:53
Last seen: 2026-10-18 00:10:50
265

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 265/100. Total malicious requests observed: 181.

BURSTDANGER_PATHREDIRECT_PROBEUA_SUS
01

Geolocation & Classification

IP Address
15.135.168.156
Type
Hosting
Country
🇦🇺 Australia
City
Sydney
ISP
Amazon.com, Inc.
Organization
AWS EC2 (ap-southeast-2)
Autonomous System
AS16509 Amazon.com, Inc.
Hit Count
181
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 10/2sAbnormally fast request rate — automated scanning+35
Burst 34/10sAbnormally fast request rate — automated scanning+35
Burst 35/10sAbnormally fast request rate — automated scanning+35
Danger medium hits: 245Medium-risk: admin panels, config files+60
Danger medium hits: 251Medium-risk: admin panels, config files+60
Danger strong hits: 26High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 27High-risk paths: shells, RCE vectors, exploits+100
Probe 302→404Behavioral anomaly detected by automated analysis+20
UA suspiciousBehavioral anomaly detected by automated analysis+15
Σ = 460
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

2026-10-12 04:05:53
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 10/2s (+35), Burst 34/10s (+35), Burst 35/10s (+35)
2026-10-18 00:10:50
Last malicious request observed
Total score reached: 265/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Amazon.com, Inc.
AS16509 · 🇦🇺 Australia

We have detected 1325 malicious IPs from this autonomous system.

View all IPs from AS16509 →
06

Recommendations

Actions taken & recommended

  • IP 15.135.168.156 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 15.135.168.156.

🔎 Directory Scan Defense

IP 15.135.168.156 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🤖 User-Agent Anomaly Defense

IP 15.135.168.156 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

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
cbl.abuseat.org
✓ Clean
zen.spamhaus.org
✓ Clean
spam.dnsbl.sorbs.net
✓ Clean
dnsbl.dronebl.org
✓ Clean
b.barracudacentral.org
✓ Clean
psbl.surriel.com

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

10

Threat Analysis

15.135.168.156 has been assigned a threat score of 265/100 (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 FloodingPath EnumerationUser-Agent Anomaly

📊 Threat Analysis

15.135.168.156 is registered in Sydney, Australia, operating on the network of Amazon.com, Inc.. This IP first appeared in our threat feeds after triggering multiple behavioral detection signatures. During its 5-day observation window, we recorded 181 hostile requests from this IP — roughly 36.2 per day on average. 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. With 3 different attack patterns detected, this IP exhibits behavior characteristic of advanced automated scanning frameworks. Australia currently accounts for 1,240 blocked IPs in our database, making it a major source of malicious traffic. With a threat score of 265/100, 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 Australia

137.23.3.14 (310)20.92.77.159 (310)3.26.255.172 (308)3.26.98.5 (308)35.189.4.156 (298)View all →

🏢 Same network: AS16509

3.26.255.172 (308)3.26.98.5 (308)35.180.172.183 (298)3.129.218.216 (288)18.191.74.68 (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.

💡 Edge Computing Attack Surface

Edge computing pushes processing closer to users but expands the attack surface. Edge nodes often run in less secure environments than centralized data centers, creating new opportunities for physical access attacks and supply chain compromises.

🔍 Check Any IP Address

Share this report: