ABUSE.MOM
THREAT REPORT

IP Threat Report
85.130.85.38

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-27 19:33:43
First seen: 2026-05-20 13:13:18
Last seen: 2026-05-24 10:19:44
115

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 115/100. Total malicious requests observed: 422.

BURSTREDIRECT_PROBEUA_CHANGED
01

Geolocation & Classification

IP Address
85.130.85.38
Type
Residential
Country
🇧🇬 Bulgaria
City
Dimitrovgrad
ISP
A1 Bulgaria EAD
Organization
A1 Bulgaria EAD
Autonomous System
AS13124 A1 Bulgaria EAD
Hit Count
422
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 15/2sAbnormally fast request rate — automated scanning+35
Burst 24/10sAbnormally fast request rate — automated scanning+35
Probe 302→404Behavioral anomaly detected by automated analysis+20
UA changedMultiple User-Agents — bot rotation technique+25
Σ = 115
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

2026-05-20 13:13:18
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 15/2s (+35), Burst 24/10s (+35), Probe 302→404 (+20)
2026-05-24 10:19:44
Last malicious request observed
Total score reached: 115/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

A1 Bulgaria EAD
AS13124 · 🇧🇬 Bulgaria
06

Recommendations

Actions taken & recommended

  • IP 85.130.85.38 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

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 85.130.85.38.

🔎 Path Enumeration Protection

Block scanning from 85.130.85.38: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🤖 User-Agent Anomaly Defense

IP 85.130.85.38 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

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

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

10

Threat Analysis

85.130.85.38 has been assigned a threat score of 115/100 (Critical). This places it in the critical threat category. Immediate blocking is strongly advised across all network perimeters.

The following attack categories were identified:

Request FloodingPath EnumerationUser-Agent Anomaly

📊 Threat Analysis

IP address 85.130.85.38 has been traced to Dimitrovgrad, Bulgaria, operating on the network of A1 Bulgaria EAD. Our threat detection systems have flagged this address based on observed malicious behavior patterns. The address has been active for 3 days in our monitoring system, producing 422 flagged requests at a rate of ~140.7/day. Operating from a residential network, this IP may represent a compromised home gateway or IoT device that has been drafted into a larger attack infrastructure. The diversity of 3 separate attack methods suggests a comprehensive attack toolkit — likely an automated scanner that tests for vulnerabilities across multiple categories. Our records show 57 malicious IPs originating from Bulgaria, positioning it as a notable contributor to global threat activity. A score of 115/100 places this address in the top tier of severity. Block and investigate any historical connections.

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

85.11.167.90 (293)104.28.246.54 (280)85.11.167.15 (240)146.70.245.66 (230)85.11.167.80 (225)View all →

🏢 Same network: AS13124

85.130.84.183 (115)85.130.86.11 (115)85.130.90.232 (115)213.191.163.139 (68)130.204.144.184 (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.

💡 Digital Forensics Fundamentals

Digital forensics preserves and analyzes electronic evidence following attacks. Proper chain of custody, forensic imaging, timeline reconstruction, and artifact analysis are essential for understanding attack scope, attribution, and preventing recurrence.

🔍 Check Any IP Address

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