ABUSE.MOM
THREAT REPORT

IP Threat Report
83.97.116.218

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-26 08:49:14
First seen: 2026-10-21 23:20:11
Last seen: 2026-10-25 04:04:39
78

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 78/100. Total malicious requests observed: 59.

BURSTMETHOD
01

Geolocation & Classification

IP Address
83.97.116.218
Type
VPN
Country
🇩🇪 Germany
City
Frankfurt am Main
ISP
Limestone Networks, Inc.
Organization
Fine Group Servers Solutions LLC
Autonomous System
AS46475 Limestone Networks, Inc.
Hit Count
59
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 12/10sAbnormally fast request rate — automated scanning+35
Burst 8/2sAbnormally fast request rate — automated scanning+35
POST seenBehavioral anomaly detected by automated analysis+8
Σ = 78
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

2026-10-21 23:20:11
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 12/10s (+35), Burst 8/2s (+35), POST seen (+8)
2026-10-25 04:04:39
Last malicious request observed
Total score reached: 78/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Limestone Networks, Inc.
AS46475 · 🇩🇪 Germany

We have detected 179 malicious IPs from this autonomous system.

View all IPs from AS46475 →
06

Recommendations

Actions taken & recommended

  • IP 83.97.116.218 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

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 83.97.116.218.

09

Blacklist Status (DNSBL)

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

✓ Clean
spam.dnsbl.sorbs.net
✓ Clean
b.barracudacentral.org
✓ Clean
bl.blocklist.de
✓ Clean
cbl.abuseat.org
✓ Clean
zen.spamhaus.org
✓ Clean
dnsbl.dronebl.org
✓ Clean
psbl.surriel.com

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

10

Threat Analysis

83.97.116.218 has been assigned a threat score of 78/100 (High). At this threat level, the IP is considered high risk. Firewall rules should be updated to deny traffic from this source.

The following attack categories were identified:

Request Flooding

📊 Threat Analysis

Threat intelligence analysis has linked 83.97.116.218 to malicious activity originating from Frankfurt am Main, Germany, operating on the network of Limestone Networks, Inc.. The address has been under observation since its initial detection. The address has been active for 3 days in our monitoring system, producing 59 flagged requests at a rate of ~19.7/day. Classified as a VPN or proxy server, this IP serves as an anonymization layer. While VPNs have legitimate uses, this address has been observed routing clearly malicious traffic. Rate-based attacks from this IP aim to overwhelm server resources through high-volume request flooding. Germany currently accounts for 3,644 blocked IPs in our database, making it a major source of malicious traffic. At 78/100, this IP warrants immediate defensive action.

This IP is associated with a VPN or proxy service. Attackers frequently route their traffic through anonymizing services to obscure their true location. This makes attribution more challenging but the malicious behavior patterns remain detectable.

11

Related Threats

🇩🇪 Top threats from Germany

64.89.163.182 (340)45.86.202.216 (340)15.220.152.241 (320)35.246.204.221 (320)159.100.30.125 (318)View all →

🏢 Same network: AS46475

45.159.21.231 (268)88.218.45.194 (268)45.159.22.202 (253)194.99.24.160 (245)185.101.21.119 (245)View all →
12

Security Intelligence

💡 DDoS Mitigation Approaches

Distributed denial of service attacks overwhelm infrastructure with traffic volume. Effective mitigation combines always-on traffic scrubbing, anycast network distribution, rate limiting, and the ability to quickly scale absorption capacity during attacks.

💡 XML External Entity (XXE) Attacks

XXE vulnerabilities in XML parsers allow attackers to read local files, perform SSRF, and execute denial of service attacks. Many legacy applications and APIs remain vulnerable to XXE due to insecure default XML parser configurations.

🔍 Check Any IP Address

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