ABUSE.MOM
THREAT REPORT

IP Threat Report
83.228.63.3

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-26 05:59:52
First seen: 2026-10-13 07:30:55
Last seen: 2026-10-18 00:10:40
85

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 85/100. Total malicious requests observed: 69.

BURSTRATIO_404
01

Geolocation & Classification

IP Address
83.228.63.3
Type
Residential
Country
🇧🇬 Bulgaria
City
Sofia
ISP
BTC-BROADBAND
Organization
Bulgarian Telecommunications Company Plc.
Autonomous System
AS8866 Vivacom Bulgaria EAD
Hit Count
69
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Burst 21/10sAbnormally fast request rate — automated scanning+35
Burst 21/2sAbnormally fast request rate — automated scanning+35
Σ = 85
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

2026-10-13 07:30:55
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), Burst 21/10s (+35), Burst 21/2s (+35)
2026-10-18 00:10:40
Last malicious request observed
Total score reached: 85/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

BTC-BROADBAND
AS8866 · 🇧🇬 Bulgaria

We have detected 7 malicious IPs from this autonomous system.

View all IPs from AS8866 →
06

Recommendations

Actions taken & recommended

  • IP 83.228.63.3 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 83.228.63.3: 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 83.228.63.3.

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
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

83.228.63.3 has been assigned a threat score of 85/100 (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

Our monitoring infrastructure has identified 83.228.63.3, geolocated to Sofia, Bulgaria, operating on the network of BTC-BROADBAND, as a source of suspicious network activity. The address has been active for 4 days in our monitoring system, producing 69 flagged requests at a rate of ~17.3/day. The address is classified as residential, meaning it likely belongs to an end-user ISP connection. Malicious activity from residential IPs typically indicates device compromise or botnet membership. The dual attack vectors of Path Enumeration combined with Request Flooding indicate a coordinated assault rather than opportunistic scanning. Our records show 83 malicious IPs originating from Bulgaria, positioning it as a notable contributor to global threat activity. A threat score of 85/100 places this IP in the high-risk category. Blocking at the firewall level is recommended.

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

🇧🇬 Top threats from Bulgaria

66.56.85.201 (305)93.152.221.13 (300)85.11.167.90 (293)104.28.246.54 (280)66.56.85.163 (270)View all →

🏢 Same network: AS8866

90.154.195.177 (140)95.43.162.12 (140)213.130.78.109 (103)213.91.162.179 (103)62.73.122.108 (68)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.

💡 CAPTCHA and Bot Detection

CAPTCHAs remain a primary bot defense but face increasing bypass rates from AI-powered solvers. Modern alternatives include invisible behavioral analysis, proof-of-work challenges, and device fingerprinting that detect bots without impacting user experience.

🔍 Check Any IP Address

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