ABUSE.MOM
THREAT REPORT

IP Threat Report
165.231.98.21

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 09:01:40
First seen: 2026-04-05 20:00:05
Last seen: 2026-04-28 06:00:04
140

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 140/100. Total malicious requests observed: 9.

DANGER_PATHRATIO_404REDIRECT_PROBEBURSTREFERER
01

Geolocation & Classification

IP Address
165.231.98.21
Type
Residential
Country
🇳🇱 Netherlands
City
Amsterdam
ISP
Orion Network Limited
Organization
Fiber Grid
Autonomous System
AS41564 Orion Network Limited
Hit Count
9
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger medium hits: 4Medium-risk: admin panels, config files+40
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
Burst: 5 req / 2sAbnormally fast request rate — automated scanning+35
Foreign referer seenReferer from unrelated external domain+10
Danger medium hits: 8Medium-risk: admin panels, config files+60
Σ = 180
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

2026-04-05 20:00:05
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger medium hits: 4 (+40), 404 ratio 40-60% (+15), Probe pattern 302->404 same path (+20)
2026-04-28 06:00:04
Last malicious request observed
Total score reached: 140/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Orion Network Limited
AS41564 · 🇳🇱 Netherlands
06

Recommendations

Actions taken & recommended

  • IP 165.231.98.21 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 165.231.98.0/24
  • 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 165.231.98.21: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🌊 Traffic Flood Defense

IP 165.231.98.21 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

07

Neighbors in 165.231.98.0/24

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

08

Open Ports & Services

Network reconnaissance data from Shodan. Open ports may indicate running services, misconfigurations, or potential attack surfaces.

OPEN PORTS (2)
PortServiceRiskDescription
80HTTPLowHTTP web server — standard web traffic
44444UnknownLowService on port 44444
KNOWN VULNERABILITIES (CVE) (8)
CVE IDLink
CVE-2019-20372NVD →
CVE-2023-44487NVD →
CVE-2021-3618NVD →
CVE-2019-9513NVD →
CVE-2019-9511NVD →
CVE-2021-23017NVD →
CVE-2025-23419NVD →
CVE-2019-9516NVD →

🔴 Security scanning identified 8 vulnerability entries on this host. Multiple vulnerabilities suggest gaps in patch management. Consult NVD advisories for details.

DETECTED TECHNOLOGIES
f5:nginx:1.16.0

Data source: Shodan InternetDB. Scanned independently of abuse.mom.

09

Blacklist Status (DNSBL)

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

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

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

10

Threat Analysis

165.231.98.21 has been assigned a threat score of 140/100 (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:

Path EnumerationRequest Flooding

📊 Threat Analysis

Threat intelligence analysis has linked 165.231.98.21 to malicious activity originating from Amsterdam, Netherlands, operating on the network of Orion Network Limited. The address has been under observation since its initial detection. The address has been active for 22 days in our monitoring system, producing 9 flagged requests at a rate of ~0.4/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. Two attack patterns were identified (Path Enumeration and Request Flooding), suggesting a semi-automated campaign that targets multiple vulnerabilities. A score of 140/100 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 Netherlands

165.231.101.167 (140)165.231.101.185 (140)165.231.101.212 (140)165.231.98.184 (140)165.231.98.96 (140)View all →

🏢 Same network: AS41564

89.251.0.24 (295)89.251.0.128 (295)89.251.0.26 (280)89.251.0.123 (270)89.251.0.110 (255)View all →
12

Security Intelligence

💡 Prototype Pollution Attacks

Prototype pollution manipulates JavaScript object prototypes to inject properties that affect all objects in an application. This can lead to denial of service, property injection, and in some cases remote code execution in Node.js applications.

💡 Insider Threat Indicators

Insider threats — whether malicious or negligent — account for a significant percentage of data breaches. Behavioral analytics detecting unusual access patterns, data downloads, and privilege escalation help identify insider risks before damage occurs.

🔍 Check Any IP Address

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