ABUSE.MOM
THREAT REPORT

IP Threat Report
16.54.251.6

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-09-06 17:44:46
First seen: 2026-09-05 12:16:35
Last seen: 2026-09-06 01:05:27
253

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 253/100. Total malicious requests observed: 18.

BURSTDANGER_PATHMETHODRATIO_404
01

Geolocation & Classification

IP Address
16.54.251.6
Type
Hosting
Country
🇨🇦 Canada
City
Montreal
ISP
Amazon.com, Inc.
Organization
AWS EC2 (ca-central-1)
Autonomous System
AS16509 Amazon.com, Inc.
Hit Count
18
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Burst 25/2sAbnormally fast request rate — automated scanning+35
Burst 89/10sAbnormally fast request rate — automated scanning+35
Danger medium hits: 40Medium-risk: admin panels, config files+60
Danger strong hits: 480High-risk paths: shells, RCE vectors, exploits+100
POST seenBehavioral 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

2026-09-05 12:16:35
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), Burst 25/2s (+35), Burst 89/10s (+35)
2026-09-06 01:05:27
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 16.54.251.6 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

🔎 Path Enumeration Protection

Block scanning from 16.54.251.6: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 16.54.251.6.

09

Blacklist Status (DNSBL)

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

✓ Clean
dnsbl.dronebl.org
✓ Clean
bl.blocklist.de
✓ Clean
zen.spamhaus.org
✓ Clean
spam.dnsbl.sorbs.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

16.54.251.6 has been assigned a threat score of 253/100 (Critical). This is a critical-level threat. Systems administrators should treat this IP as hostile and block all inbound connections without exception.

The following attack categories were identified:

Path EnumerationRequest Flooding

📊 Threat Analysis

Threat intelligence analysis has linked 16.54.251.6 to malicious activity originating from Montreal, Canada, operating on the network of Amazon.com, Inc.. The address has been under observation since its initial detection. The address has been active for 1 days in our monitoring system, producing 18 flagged requests at a rate of ~18/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. The dual attack vectors of Path Enumeration combined with Request Flooding indicate a coordinated assault rather than opportunistic scanning. Our records show 102 malicious IPs originating from Canada, positioning it as a significant 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

20.151.200.44 (315)20.151.179.130 (308)20.151.111.128 (308)45.91.23.64 (305)45.91.23.164 (305)View all →

🏢 Same network: AS16509

35.180.172.183 (298)3.129.218.216 (288)18.191.74.68 (288)34.244.9.175 (288)51.44.13.36 (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.

💡 Cryptojacking Detection and Prevention

Cryptojacking hijacks computing resources to mine cryptocurrency without consent. Indicators include unusual CPU usage, specific network connections to mining pools, and JavaScript miners embedded in compromised websites. Server-side cryptojacking can persist undetected for months.

🔍 Check Any IP Address

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