ABUSE.MOM
THREAT REPORT

IP Threat Report
172.213.233.8

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 08:21:33
First seen: 2026-04-12 00:00:10
Last seen: 2026-04-12 20:00:06
280

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 280/100. Total malicious requests observed: 13.

UA_SUSDANGER_PATHRATIO_404REDIRECT_PROBEBURST
01

Geolocation & Classification

IP Address
172.213.233.8
Type
Hosting
Country
🇮🇹 Italy
City
Milan
ISP
Microsoft Corporation
Organization
Microsoft Azure Cloud (italynorth)
Autonomous System
AS8075 Microsoft Corporation
Hit Count
13
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA suspicious (short/empty)Behavioral anomaly detected by automated analysis+15
Danger strong hits: 6High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 132Medium-risk: admin panels, config files+60
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
Burst: 45 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 132 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 52 req / 2sAbnormally fast request rate — automated scanning+35
Danger strong hits: 9High-risk paths: shells, RCE vectors, exploits+100
Burst: 44 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 112 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 50 req / 2sAbnormally fast request rate — automated scanning+35
Danger strong hits: 12High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 198Medium-risk: admin panels, config files+60
Burst: 49 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 168 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 48 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 131 req / 10sAbnormally fast request rate — automated scanning+35
Danger medium hits: 360Medium-risk: admin panels, config files+60
Burst: 51 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 181 req / 10sAbnormally fast request rate — automated scanning+35
Danger medium hits: 166Medium-risk: admin panels, config files+60
Burst: 164 req / 10sAbnormally fast request rate — automated scanning+35
Danger medium hits: 356Medium-risk: admin panels, config files+60
Burst: 37 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 125 req / 10sAbnormally fast request rate — automated scanning+35
Danger medium hits: 240Medium-risk: admin panels, config files+60
Burst: 146 req / 10sAbnormally fast request rate — automated scanning+35
Danger medium hits: 238Medium-risk: admin panels, config files+60
Burst: 142 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 41 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 133 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 57 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 198 req / 10sAbnormally fast request rate — automated scanning+35
Σ = 1505
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

2026-04-12 00:00:10
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA suspicious (short/empty) (+15), Danger strong hits: 6 (+100), Danger medium hits: 132 (+60)
2026-04-12 20:00:06
Last malicious request observed
Total score reached: 280/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Microsoft Corporation
AS8075 · 🇮🇹 Italy
06

Recommendations

Actions taken & recommended

  • IP 172.213.233.8 is blocked at application level (HTTP 403)
  • Consider blocking at firewall level (iptables/CSF) to reduce server load
  • Other malicious IPs detected in the same /24 subnet — consider blocking 172.213.233.0/24
  • 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 172.213.233.8 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

🔎 Directory Scan Defense

IP 172.213.233.8 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 172.213.233.8.

07

Neighbors in 172.213.233.0/24

Other blocked IPs from the same /24 subnet — indicates systematic abuse from this network range.

09

Blacklist Status (DNSBL)

This IP was checked against major DNS-based blacklists used by mail servers and firewalls worldwide.

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

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

10

Threat Analysis

172.213.233.8 has been assigned a threat score of 280/100 (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:

User-Agent AnomalyPath EnumerationRequest Flooding

📊 Threat Analysis

Our monitoring infrastructure has identified 172.213.233.8, geolocated to Milan, Italy, operating on the network of Microsoft Corporation, as a source of suspicious network activity. During its 1-day observation window, we recorded 13 hostile requests from this IP — roughly 13 per day on average. The IP is classified as hosting/datacenter infrastructure, commonly associated with rented servers used for automated attack campaigns, botnet command-and-control, or vulnerability scanning at scale. The diversity of 3 separate attack methods suggests a comprehensive attack toolkit — likely an automated scanner that tests for vulnerabilities across multiple categories. Italy currently accounts for 101 blocked IPs in our database, making it a significant source of malicious traffic. With a threat score of 280/100, this IP is among the most dangerous addresses in our database. Immediate and complete blocking is strongly 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 Italy

141.11.36.94 (305)2.57.170.51 (295)45.91.20.90 (295)4.232.88.90 (280)172.213.16.18 (280)View all →

🏢 Same network: AS8075

4.232.88.90 (280)172.213.16.18 (280)4.232.89.175 (280)4.232.90.25 (280)172.213.17.83 (280)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.

💡 HTTP Request Smuggling

Request smuggling exploits differences in how front-end and back-end servers parse HTTP requests. This technique can bypass security controls, poison web caches, and hijack other users sessions by desynchronizing request boundaries.

🔍 Check Any IP Address

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