ABUSE.MOM
THREAT REPORT

IP Threat Report
163.220.152.26

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-09-13 13:43:42
First seen: 2026-08-05 19:00:22
Last seen: 2026-09-13 13:25:18
135

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 135/100. Total malicious requests observed: 392.

DANGER_PATHRATIO_404REDIRECT_PROBE
01

Geolocation & Classification

IP Address
163.220.152.26
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
392
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Danger strong hits: 10High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 12High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 18High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 2High-risk paths: shells, RCE vectors, exploits+50
Danger strong hits: 24High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 4High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 6High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 8High-risk paths: shells, RCE vectors, exploits+100
Probe 302→404Behavioral anomaly detected by automated analysis+20
Σ = 785
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

2026-08-05 19:00:22
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: 10 (+100), Danger strong hits: 12 (+100)
2026-09-13 13:25:18
Last malicious request observed
Total score reached: 135/100
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 163.220.152.26 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 163.220.152.26 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
cbl.abuseat.org
✓ Clean
dnsbl.dronebl.org
✓ Clean
psbl.surriel.com
✓ Clean
bl.blocklist.de
✓ Clean
zen.spamhaus.org
✓ Clean
spam.dnsbl.sorbs.net
✓ Clean
b.barracudacentral.org

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

10

Threat Analysis

163.220.152.26 has been assigned a threat score of 135/100 (Critical). A score this high marks a critical threat actor. This address has demonstrated persistent, aggressive malicious behavior across multiple detection vectors.

The following attack categories were identified:

Path Enumeration

📊 Threat Analysis

Our monitoring infrastructure has identified 163.220.152.26, geolocated to Chiyoda City, Japan, operating on the network of Research Organization of Information and Systems, National Institute of Informa, as a source of suspicious network activity. Over a period of 38 days, this IP generated 392 malicious requests, averaging approximately 10.3 requests per day. This is a residential IP address, suggesting a compromised home device such as a router, smart appliance, or infected workstation participating in a botnet. Active path scanning has been detected — this IP probes for hundreds of common file and directory names. With 104 flagged addresses, Japan represents a significant presence in our threat database. At 135/100, this is an extremely high-risk address. All traffic should be considered hostile.

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

163.220.152.28 (135)163.220.152.27 (85)View all →
12

Security Intelligence

💡 Remote Code Execution (RCE)

RCE vulnerabilities allow attackers to execute arbitrary code on target servers. These critical flaws often arise from deserialization bugs, template injection, or file upload vulnerabilities, and represent the highest severity class of web application weaknesses.

💡 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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