ABUSE.MOM
THREAT REPORT

IP Threat Report
129.21.17.234

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-25 08:22:10
First seen: 2026-10-16 21:24:10
Last seen: 2026-10-18 00:04:06
155

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 155/100. Total malicious requests observed: 15.

BOT_UABURSTRATIO_404REDIRECT_PROBE
01

Geolocation & Classification

IP Address
129.21.17.234
Type
Residential
Country
🇺🇸 United States
City
Rochester
ISP
Rochester Institute of Technology
Organization
Rochester Institute of Technology
Autonomous System
AS4385 Rochester Institute of Technology
Hit Count
15
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Burst 24/10sAbnormally fast request rate — automated scanning+35
Burst 24/2sAbnormally fast request rate — automated scanning+35
Probe 302→404Behavioral anomaly detected by automated analysis+20
UA bot: pythonKnown bot/crawler User-Agent detected+40
Σ = 155
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

2026-10-16 21:24:10
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio >= 60% (+25), Burst 24/10s (+35), Burst 24/2s (+35)
2026-10-18 00:04:06
Last malicious request observed
Total score reached: 155/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Rochester Institute of Technology
AS4385 · 🇺🇸 United States
06

Recommendations

Actions taken & recommended

  • IP 129.21.17.234 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 129.21.17.234 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 129.21.17.234.

🤖 Bot Detection

Address UA spoofing from 129.21.17.234: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

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

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

10

Threat Analysis

129.21.17.234 has been assigned a threat score of 155/100 (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 FloodingUser-Agent Anomaly

📊 Threat Analysis

Network traffic from 129.21.17.234, located in Rochester, United States, operating on the network of Rochester Institute of Technology, has been classified as malicious by our automated threat scoring engine. During its 1-day observation window, we recorded 15 hostile requests from this IP — roughly 15 per day on average. This residential IP is likely a compromised consumer device. Home routers and IoT equipment with default credentials are prime targets for botnet operators. The combination of 3 distinct attack vectors indicates a sophisticated, multi-pronged threat actor deploying automated tools that probe multiple attack surfaces simultaneously. United States currently accounts for 36,230 blocked IPs in our database, making it a major source of malicious traffic. At 155/100, this is an extremely high-risk address. All traffic should be considered hostile.

This IP is classified as residential, suggesting it may belong to a compromised home device, IoT botnet member, or an infected personal computer. Residential IPs involved in attacks often indicate malware infection without the owner's knowledge.

11

Related Threats

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🏢 Same network: AS4385

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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.

💡 Network Segmentation Benefits

Proper network segmentation limits the blast radius of breaches. Even if attackers compromise one segment, properly configured network boundaries prevent lateral movement to critical systems, databases, and administrative interfaces.

🔍 Check Any IP Address

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