ABUSE.MOM
THREAT REPORT

IP Threat Report
156.146.55.161

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-26 11:00:08
First seen: 2026-10-04 09:09:14
Last seen: 2026-10-11 01:00:37
70

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 70/100. Total malicious requests observed: 153.

BURSTRATIO_404REDIRECT_PROBE
01

Geolocation & Classification

IP Address
156.146.55.161
Type
Hosting
Country
🇧🇬 Bulgaria
City
Sofia
ISP
Datacamp Limited
Organization
Cdnext SOF
Autonomous System
AS212238 Datacamp Limited
Hit Count
153
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Burst 12/10sAbnormally fast request rate — automated scanning+35
Probe 302→404Behavioral anomaly detected by automated analysis+20
Σ = 70
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

2026-10-04 09:09:14
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), Burst 12/10s (+35), Probe 302→404 (+20)
2026-10-11 01:00:37
Last malicious request observed
Total score reached: 70/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Datacamp Limited
AS212238 · 🇧🇬 Bulgaria

We have detected 1499 malicious IPs from this autonomous system.

View all IPs from AS212238 →
06

Recommendations

Actions taken & recommended

  • IP 156.146.55.161 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 156.146.55.161: 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 156.146.55.161.

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

156.146.55.161 has been assigned a threat score of 70/100 (High). At this threat level, the IP is considered high risk. Firewall rules should be updated to deny traffic from this source.

The following attack categories were identified:

Path EnumerationRequest Flooding

📊 Threat Analysis

Network traffic from 156.146.55.161, located in Sofia, Bulgaria, operating on the network of Datacamp Limited, has been classified as malicious by our automated threat scoring engine. The address has been active for 6 days in our monitoring system, producing 153 flagged requests at a rate of ~25.5/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. With 83 flagged addresses, Bulgaria represents a notable presence in our threat database. A threat score of 70/100 places this IP in the high-risk category. Blocking at the firewall level is recommended.

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 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: AS212238

191.96.146.179 (340)147.90.209.53 (308)107.149.152.45 (308)45.91.23.64 (305)98.159.233.109 (305)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.

💡 SQL Injection Campaigns

SQL injection remains one of the most common web attack vectors. Attackers inject malicious SQL code through input fields to extract database contents, modify data, or gain administrative access. Automated scanners test for SQLi vulnerabilities at massive scale.

🔍 Check Any IP Address

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