ABUSE.MOM
THREAT REPORT

IP Threat Report
163.220.152.27

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-09-13 12:41:24
First seen: 2026-08-08 00:30:46
Last seen: 2026-08-09 04:08:41
85

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 85/100. Total malicious requests observed: 36.

DANGER_PATHRATIO_404REDIRECT_PROBE
01

Geolocation & Classification

IP Address
163.220.152.27
Type
Residential
Country
🇯🇵 Japan
City
Chiyoda City
ISP
Research Organization of Information and Systems, National Institute of Informa
Organization
National Institute of Advanced Industrial Science and Technology
Autonomous System
AS2907 Research Organization of Information and Systems, National Institute of Informatics
Hit Count
36
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Danger strong hits: 2High-risk paths: shells, RCE vectors, exploits+50
Probe 302→404Behavioral anomaly detected by automated analysis+20
Σ = 85
03

Observed Activity

Reconstructed HTTP requests from server access logs. Target domains redacted for security.

[redacted]
GET
/
200
Requests shown: 1 · HTTP 404: 0 · Dangerous patterns: 0

* Typical request patterns for detected signatures. Actual target domains are redacted.

04

Timeline

2026-08-08 00:30:46
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), Danger strong hits: 2 (+50), Probe 302→404 (+20)
2026-08-09 04:08:41
Last malicious request observed
Total score reached: 85/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Research Organization of Information and Systems, National Institute of Informa
AS2907 · 🇯🇵 Japan
06

Recommendations

Actions taken & recommended

  • IP 163.220.152.27 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 163.220.152.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🔎 Directory Scan Defense

IP 163.220.152.27 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

07

Neighbors in 163.220.152.0/24

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.

✓ Clean
zen.spamhaus.org
✓ Clean
cbl.abuseat.org
✓ Clean
bl.blocklist.de
✓ 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

163.220.152.27 has been assigned a threat score of 85/100 (Critical). This places it in the critical threat category. Immediate blocking is strongly advised across all network perimeters.

The following attack categories were identified:

Path Enumeration

📊 Threat Analysis

The address 163.220.152.27 originates from Chiyoda City, Japan, operating on the network of Research Organization of Information and Systems, National Institute of Informa. It was identified through automated analysis of incoming network traffic across monitored endpoints. During its 1-day observation window, we recorded 36 hostile requests from this IP — roughly 36 per day on average. This is a residential IP address, suggesting a compromised home device such as a router, smart appliance, or infected workstation participating in a botnet. The IP exhibits directory enumeration behavior, systematically requesting non-existent paths to discover hidden files and misconfigured resources. Our records show 104 malicious IPs originating from Japan, positioning it as a significant contributor to global threat activity. At 85/100, this IP warrants immediate defensive action.

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 Japan

103.163.220.216 (340)35.189.151.182 (320)168.110.63.243 (320)129.225.172.187 (310)194.5.48.175 (305)View all →

🏢 Same network: AS2907

163.220.152.26 (135)163.220.152.28 (135)View all →
12

Security Intelligence

💡 API Abuse and Enumeration

Modern attacks increasingly target APIs rather than traditional web interfaces. Attackers enumerate endpoints, test for broken authentication, and exploit excessive data exposure. API attacks are harder to detect as they mimic legitimate programmatic access patterns.

💡 Network Segmentation Benefits

Proper network segmentation limits the blast radius of breaches. Even if attackers compromise one segment, properly configured network boundaries prevent lateral movement to critical systems, databases, and administrative interfaces.

🔍 Check Any IP Address

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