ABUSE.MOM
THREAT REPORT

IP Threat Report
188.68.38.139

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-27 01:12:16
First seen: 2026-02-17 19:05:04
Last seen: 2026-05-04 16:00:05
70

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 70/100. Total malicious requests observed: 12.

BURSTRATIO_404REDIRECT_PROBE
01

Geolocation & Classification

IP Address
188.68.38.139
Type
Residential
Country
🇩🇪 Germany
City
Nuremberg
ISP
netcup GmbH
Organization
NETCUP-GMBH
Autonomous System
AS197540 netcup GmbH
Hit Count
12
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst: 16 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 16 req / 10sAbnormally fast request rate — automated scanning+35
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
Burst: 8 req / 2sAbnormally fast request rate — automated scanning+35
Σ = 140
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

2026-02-17 19:05:04
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst: 16 req / 2s (+35), Burst: 16 req / 10s (+35), 404 ratio 40-60% (+15)
2026-05-04 16:00:05
Last malicious request observed
Total score reached: 70/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

netcup GmbH
AS197540 · 🇩🇪 Germany
06

Recommendations

Actions taken & recommended

  • IP 188.68.38.139 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 188.68.38.139.

🔎 Path Enumeration Protection

Block scanning from 188.68.38.139: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

09

Blacklist Status (DNSBL)

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

⛔ LISTED
Spamhaus ZEN

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

10

Threat Analysis

188.68.38.139 has been assigned a threat score of 70/100 (High). This score indicates high threat severity. The IP has shown clear patterns of malicious behavior that warrant immediate defensive measures.

The following attack categories were identified:

Request FloodingPath Enumeration

📊 Threat Analysis

Network traffic from 188.68.38.139, located in Nuremberg, Germany, operating on the network of netcup GmbH, has been classified as malicious by our automated threat scoring engine. Our sensors captured 12 malicious requests from this address across a 75-day span, reflecting a sustained attack cadence of ~0.2 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. Two attack patterns were identified (Request Flooding and Path Enumeration), suggesting a semi-automated campaign that targets multiple vulnerabilities. Germany currently accounts for 124 blocked IPs in our database, making it a significant source of malicious traffic. At 70/100, 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 Germany

15.220.152.241 (320)77.81.65.244 (313)185.168.29.98 (313)91.217.249.222 (305)212.30.36.219 (305)View all →

🏢 Same network: AS197540

152.53.149.25 (205)89.58.57.45 (105)152.53.111.131 (95)152.53.144.223 (95)152.53.22.210 (70)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.

💡 CORS Misconfiguration Exploitation

Cross-Origin Resource Sharing misconfigurations can expose sensitive APIs to unauthorized origins. Wildcard policies, reflected origins, and null origin allowlisting create vulnerabilities that attackers exploit for data theft and unauthorized actions.

🔍 Check Any IP Address

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