ABUSE.MOM
THREAT REPORT

IP Threat Report
16.176.145.208

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-21 19:07:15
First seen: 2026-03-31 10:00:06
Last seen: 2026-03-31 14:00:07
145

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 145/100. Total malicious requests observed: 11.

BOT_UAUA_CHANGEDBURSTREFERERREDIRECT_PROBE
01

Geolocation & Classification

IP Address
16.176.145.208
Type
Hosting
Country
🇦🇺 Australia
City
Sydney
ISP
Amazon.com, Inc.
Organization
AWS EC2 (ap-southeast-2)
Autonomous System
AS16509 Amazon.com, Inc.
Hit Count
11
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA bot: Go-http-clientKnown bot/crawler User-Agent detected+40
UA changed for same IPMultiple User-Agents — bot rotation technique+25
Burst: 8 req / 2sAbnormally fast request rate — automated scanning+35
Foreign referer seenReferer from unrelated external domain+10
Burst: 6 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 7 req / 2sAbnormally fast request rate — automated scanning+35
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
Burst: 11 req / 10sAbnormally fast request rate — automated scanning+35
Σ = 235
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

2026-03-31 10:00:06
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA bot: Go-http-client (+40), UA changed for same IP (+25), Burst: 8 req / 2s (+35)
2026-03-31 14:00:07
Last malicious request observed
Total score reached: 145/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Amazon.com, Inc.
AS16509 · 🇦🇺 Australia
06

Recommendations

Actions taken & recommended

  • IP 16.176.145.208 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

🤖 User-Agent Anomaly Defense

IP 16.176.145.208 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 16.176.145.208.

🔎 Path Enumeration Protection

Block scanning from 16.176.145.208: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

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

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

10

Threat Analysis

16.176.145.208 has been assigned a threat score of 145/100 (Critical). With this rating, the IP falls into the critical severity bracket — among the most dangerous addresses in our monitoring database.

The following attack categories were identified:

User-Agent AnomalyRequest FloodingPath Enumeration

📊 Threat Analysis

Our monitoring infrastructure has identified 16.176.145.208, geolocated to Sydney, Australia, operating on the network of Amazon.com, Inc., as a source of suspicious network activity. The address has been active for 1 days in our monitoring system, producing 11 flagged requests at a rate of ~11/day. Operating from datacenter infrastructure, this IP is typical of addresses used in organized attack operations. Cloud and VPS providers are commonly exploited as launching platforms for automated scanning. The diversity of 3 separate attack methods suggests a comprehensive attack toolkit — likely an automated scanner that tests for vulnerabilities across multiple categories. With 101 flagged addresses, Australia represents a significant presence in our threat database. At 145/100, 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 Australia

20.42.209.0 (280)170.64.203.182 (280)4.197.75.18 (280)20.213.152.227 (280)20.5.72.178 (280)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

💡 HTTP Header Analysis for Threat Detection

Examining HTTP headers beyond User-Agent reveals attack tools and automated scripts. Missing standard headers, unusual ordering, non-standard values, and inconsistencies with claimed client identity all serve as reliable detection signals.

💡 IoT Device Compromise Patterns

Internet of Things devices are prime targets for botnet recruitment due to weak default credentials, infrequent updates, and always-on connectivity. Compromised IoT devices generate persistent scanning and attack traffic without their owners knowledge.

🔍 Check Any IP Address

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