ABUSE.MOM
THREAT REPORT

IP Threat Report
159.26.104.38

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-27 12:56:29
First seen: 2026-03-16 13:00:07
Last seen: 2026-05-12 09:00:05
140

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 140/100. Total malicious requests observed: 35.

DANGER_PATHRATIO_404REFERERREDIRECT_PROBEBURST
01

Geolocation & Classification

IP Address
159.26.104.38
Type
Residential
Country
🇩🇪 Germany
City
Frankfurt am Main
ISP
Proton AG
Organization
PV-SL-HOSTED-Frankfurt
Autonomous System
AS208172 Proton AG
Hit Count
35
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger medium hits: 6Medium-risk: admin panels, config files+60
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Foreign referer seenReferer from unrelated external domain+10
Danger medium hits: 2Medium-risk: admin panels, config files+20
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
Danger medium hits: 4Medium-risk: admin panels, config files+40
Danger medium hits: 3Medium-risk: admin panels, config files+30
Danger medium hits: 10Medium-risk: admin panels, config files+60
Burst: 5 req / 2sAbnormally fast request rate — automated scanning+35
Danger medium hits: 5Medium-risk: admin panels, config files+50
Σ = 340
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

2026-03-16 13:00:07
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger medium hits: 6 (+60), 404 ratio 40-60% (+15), Foreign referer seen (+10)
2026-05-12 09:00:05
Last malicious request observed
Total score reached: 140/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Proton AG
AS208172 · 🇩🇪 Germany
06

Recommendations

Actions taken & recommended

  • IP 159.26.104.38 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 159.26.104.0/24
  • 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 159.26.104.38 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🌊 Traffic Flood Defense

IP 159.26.104.38 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

07

Neighbors in 159.26.104.0/24

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
dnsbl.sorbs.net
✓ Clean
ix.dnsbl.manitu.net
✓ Clean
zen.spamhaus.org
✓ Clean
bl.spamcop.net
✓ Clean
dnsbl-1.uceprotect.net
✓ Clean
truncate.gbudb.net
✓ Clean
b.barracudacentral.org
✓ Clean
psbl.surriel.com

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

10

Threat Analysis

159.26.104.38 has been assigned a threat score of 140/100 (Critical). With this rating, the IP falls into the critical severity bracket — among the most dangerous addresses in our monitoring database.

The following attack categories were identified:

Path EnumerationRequest Flooding

📊 Threat Analysis

The address 159.26.104.38 originates from Frankfurt am Main, Germany, operating on the network of Proton AG. It was identified through automated analysis of incoming network traffic across monitored endpoints. During its 56-day observation window, we recorded 35 hostile requests from this IP — roughly 0.6 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. Two attack patterns were identified (Path Enumeration and Request Flooding), suggesting a semi-automated campaign that targets multiple vulnerabilities. Our records show 102 malicious IPs originating from Germany, positioning it as a significant contributor to global threat activity. With a threat score of 140/100, this IP is among the most dangerous addresses in our database. Immediate and complete blocking is strongly recommended.

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: AS208172

205.147.17.33 (255)159.26.119.227 (173)159.26.104.42 (165)159.26.99.62 (140)159.26.99.8 (115)View all →
12

Security Intelligence

💡 Credential Stuffing at Scale

Credential stuffing uses stolen username-password pairs from data breaches to attempt logins across many websites. Since users frequently reuse passwords, these automated attacks achieve success rates of 0.1-2%, which translates to thousands of compromised accounts from millions of attempts.

💡 Edge Computing Attack Surface

Edge computing pushes processing closer to users but expands the attack surface. Edge nodes often run in less secure environments than centralized data centers, creating new opportunities for physical access attacks and supply chain compromises.

🔍 Check Any IP Address

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