ABUSE.MOM
THREAT REPORT

IP Threat Report
15.157.188.154

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-20 20:51:47
First seen: 2026-04-03 18:00:06
Last seen: 2026-04-03 18:00:06
253

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 253/100. Total malicious requests observed: 1.

DANGER_PATHRATIO_404BURSTMETHOD
01

Geolocation & Classification

IP Address
15.157.188.154
Type
Hosting
Country
🇨🇦 Canada
City
Toronto
ISP
Amazon.com, Inc.
Organization
AWS EC2 (ca-central-1)
Autonomous System
AS16509 Amazon.com, Inc.
Hit Count
1
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger strong hits: 157High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 54Medium-risk: admin panels, config files+60
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Burst: 24 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 88 req / 10sAbnormally fast request rate — automated scanning+35
POST requests presentBehavioral anomaly detected by automated analysis+8
Σ = 253
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

2026-04-03 18:00:06
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger strong hits: 157 (+100), Danger medium hits: 54 (+60), 404 ratio 40-60% (+15)
2026-04-03 18:00:06
Last malicious request observed
Total score reached: 253/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Amazon.com, Inc.
AS16509 · 🇨🇦 Canada
06

Recommendations

Actions taken & recommended

  • IP 15.157.188.154 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

🔎 Directory Scan Defense

IP 15.157.188.154 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 15.157.188.154.

09

Blacklist Status (DNSBL)

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

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

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

10

Threat Analysis

15.157.188.154 has been assigned a threat score of 253/100 (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:

Path EnumerationRequest Flooding

📊 Threat Analysis

Network traffic from 15.157.188.154, located in Toronto, Canada, operating on the network of Amazon.com, Inc., has been classified as malicious by our automated threat scoring engine. During its 1-day observation window, we recorded 1 hostile requests from this IP — roughly 1 per day on average. Classified as a hosting IP, this address likely runs on a rented server or cloud instance. Attackers prefer datacenter IPs for their high bandwidth and disposable nature. The dual attack vectors of Path Enumeration combined with Request Flooding indicate a coordinated assault rather than opportunistic scanning. Our records show 11 malicious IPs originating from Canada, positioning it as a notable contributor to global threat activity. At 253/100, 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 Canada

15.222.22.231 (263)15.223.45.61 (263)15.223.40.123 (263)15.223.171.88 (263)15.223.167.61 (263)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

💡 Brute Force Attack Mechanics

Brute force attacks systematically try username and password combinations to gain unauthorized access. Modern attacks leverage credential databases from previous breaches, testing millions of combinations using distributed botnets across multiple IP addresses.

💡 IPv6 Scanning Challenges

The vast IPv6 address space makes traditional sequential scanning impractical. However, attackers use DNS records, certificate transparency logs, and predictable address patterns to identify active IPv6 hosts, adapting their techniques to the expanded address space.

🔍 Check Any IP Address

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