ABUSE.MOM
THREAT REPORT

IP Threat Report
172.213.17.84

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 07:08:55
First seen: 2026-03-25 10:00:08
Last seen: 2026-03-25 14:00:06
280

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 280/100. Total malicious requests observed: 3.

UA_SUSDANGER_PATHBURSTRATIO_404REDIRECT_PROBE
01

Geolocation & Classification

IP Address
172.213.17.84
Type
Hosting
Country
🇮🇹 Italy
City
Milan
ISP
Microsoft Corporation
Organization
Microsoft Azure Cloud (italynorth)
Autonomous System
AS8075 Microsoft Corporation
Hit Count
3
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA suspicious (short/empty)Behavioral anomaly detected by automated analysis+15
Danger strong hits: 24High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 192Medium-risk: admin panels, config files+60
Burst: 55 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 187 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 42 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 130 req / 10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 16High-risk paths: shells, RCE vectors, exploits+100
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
Burst: 36 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 112 req / 10sAbnormally fast request rate — automated scanning+35
Σ = 520
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

2026-03-25 10:00:08
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: 24 (+100), Danger medium hits: 192 (+60)
2026-03-25 14:00:06
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 172.213.17.84 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 172.213.17.0/24
  • 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 172.213.17.84 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

🌊 Traffic Flood Defense

IP 172.213.17.84 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

🔎 Path Enumeration Protection

Block scanning from 172.213.17.84: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

07

Neighbors in 172.213.17.0/24

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

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

10

Threat Analysis

172.213.17.84 has been assigned a threat score of 280/100 (Critical). With this rating, the IP falls into the critical severity bracket — among the most dangerous addresses in our monitoring database.

The following attack categories were identified:

User-Agent AnomalyRequest FloodingPath Enumeration

📊 Threat Analysis

Our monitoring infrastructure has identified 172.213.17.84, geolocated to Milan, Italy, operating on the network of Microsoft Corporation, as a source of suspicious network activity. Our sensors captured 3 malicious requests from this address across a 1-day span, reflecting a sustained attack cadence of ~3 requests per 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 combination of 3 distinct attack vectors indicates a sophisticated, multi-pronged threat actor deploying automated tools that probe multiple attack surfaces simultaneously. Our records show 101 malicious IPs originating from Italy, positioning it as a significant contributor to global threat activity. A score of 280/100 places this address in the top tier of severity. Block and investigate any historical connections.

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.

💡 Memory Safety and Buffer Overflows

Buffer overflow vulnerabilities remain relevant in C/C++ applications despite decades of mitigation efforts. Modern protections like ASLR, stack canaries, and DEP reduce exploitability but determined attackers continue finding bypass techniques.

🔍 Check Any IP Address

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