ABUSE.MOM
THREAT REPORT

IP Threat Report
108.165.83.89

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 08:31:54
First seen: 2026-02-17 17:25:05
Last seen: 2026-03-06 20:00:05
115

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 115/100. Total malicious requests observed: 4.

UA_CHANGEDDANGER_PATHREDIRECT_PROBEREFERERIMPORTRATIO_404
01

Geolocation & Classification

IP Address
108.165.83.89
Type
Hosting
Country
🇯🇵 Japan
City
Ueda
ISP
Leaseweb Japan K.K.
Organization
Ace Data Centers, Inc
Autonomous System
AS134351 Leaseweb Japan K.K.
Hit Count
4
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA changed for same IPMultiple User-Agents — bot rotation technique+25
Danger medium hits: 6Medium-risk: admin panels, config files+60
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
Foreign referer seenReferer from unrelated external domain+10
Imported from old blocklistBehavioral anomaly detected by automated analysis+0
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Σ = 130
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

2026-02-17 17:25:05
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA changed for same IP (+25), Danger medium hits: 6 (+60), Probe pattern 302->404 same path (+20)
2026-03-06 20:00:05
Last malicious request observed
Total score reached: 115/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Leaseweb Japan K.K.
AS134351 · 🇯🇵 Japan
06

Recommendations

Actions taken & recommended

  • IP 108.165.83.89 is blocked at application level (HTTP 403)
  • Consider blocking at firewall level (iptables/CSF) to reduce server load
  • 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 108.165.83.89 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

🔎 Directory Scan Defense

IP 108.165.83.89 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

09

Blacklist Status (DNSBL)

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

✓ Clean
Spamhaus ZEN

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

10

Threat Analysis

108.165.83.89 has been assigned a threat score of 115/100 (Critical). This represents a critical risk level. Our detection systems have flagged multiple high-confidence indicators of malicious intent from this address.

The following attack categories were identified:

User-Agent AnomalyPath Enumeration

📊 Threat Analysis

Threat intelligence analysis has linked 108.165.83.89 to malicious activity originating from Ueda, Japan, operating on the network of Leaseweb Japan K.K.. The address has been under observation since its initial detection. During its 17-day observation window, we recorded 4 hostile requests from this IP — roughly 0.2 per day on average. Classified as a hosting IP, this address likely runs on a rented server or cloud instance. Attackers prefer datacenter IPs for their high bandwidth and disposable nature. The dual attack vectors of User-Agent Anomaly combined with Path Enumeration indicate a coordinated assault rather than opportunistic scanning. Japan currently accounts for 110 blocked IPs in our database, making it a significant source of malicious traffic. With a threat score of 115/100, 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 Japan

103.163.220.216 (340)35.243.110.60 (288)20.89.56.154 (280)20.27.221.169 (280)20.210.188.132 (280)View all →

🏢 Same network: AS134351

195.40.71.125 (155)108.165.181.129 (130)195.40.121.168 (115)108.165.87.70 (105)23.26.61.86 (105)View all →
12

Security Intelligence

💡 TLS Fingerprinting (JA3/JA4)

TLS fingerprinting creates unique identifiers based on how clients negotiate encrypted connections. The JA3 and JA4 methods generate hashes from TLS ClientHello parameters, enabling identification of specific tools and malware regardless of IP address changes.

💡 Cryptojacking Detection and Prevention

Cryptojacking hijacks computing resources to mine cryptocurrency without consent. Indicators include unusual CPU usage, specific network connections to mining pools, and JavaScript miners embedded in compromised websites. Server-side cryptojacking can persist undetected for months.

🔍 Check Any IP Address

Share this report: