ABUSE.MOM
THREAT REPORT

IP Threat Report
158.158.54.35

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-09-08 04:29:11
First seen: 2026-08-23 10:43:03
Last seen: 2026-09-06 01:05:44
255

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 255/100. Total malicious requests observed: 4385.

BURSTDANGER_PATHRATIO_404
01

Geolocation & Classification

IP Address
158.158.54.35
Type
Residential
Country
🇪🇸 Spain
City
Madrid
ISP
Microsoft Corporation
Organization
Microsoft Azure Cloud (spaincentral)
Autonomous System
AS8075 Microsoft Corporation
Hit Count
4385
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Burst 100/10sAbnormally fast request rate — automated scanning+35
Burst 103/10sAbnormally fast request rate — automated scanning+35
Burst 104/10sAbnormally fast request rate — automated scanning+35
Burst 120/10sAbnormally fast request rate — automated scanning+35
Burst 133/10sAbnormally fast request rate — automated scanning+35
Burst 157/10sAbnormally fast request rate — automated scanning+35
Burst 160/10sAbnormally fast request rate — automated scanning+35
Burst 161/10sAbnormally fast request rate — automated scanning+35
Burst 164/10sAbnormally fast request rate — automated scanning+35
Burst 40/2sAbnormally fast request rate — automated scanning+35
Burst 42/2sAbnormally fast request rate — automated scanning+35
Burst 43/2sAbnormally fast request rate — automated scanning+35
Burst 44/2sAbnormally fast request rate — automated scanning+35
Burst 45/2sAbnormally fast request rate — automated scanning+35
Burst 46/2sAbnormally fast request rate — automated scanning+35
Burst 93/10sAbnormally fast request rate — automated scanning+35
Danger medium hits: 108Medium-risk: admin panels, config files+60
Danger medium hits: 111Medium-risk: admin panels, config files+60
Danger medium hits: 142Medium-risk: admin panels, config files+60
Danger medium hits: 1648Medium-risk: admin panels, config files+60
Danger medium hits: 172Medium-risk: admin panels, config files+60
Danger medium hits: 1756Medium-risk: admin panels, config files+60
Danger medium hits: 1864Medium-risk: admin panels, config files+60
Danger medium hits: 193Medium-risk: admin panels, config files+60
Danger medium hits: 2006Medium-risk: admin panels, config files+60
Danger medium hits: 216Medium-risk: admin panels, config files+60
Danger medium hits: 250Medium-risk: admin panels, config files+60
Danger medium hits: 278Medium-risk: admin panels, config files+60
Danger medium hits: 3Medium-risk: admin panels, config files+30
Danger medium hits: 301Medium-risk: admin panels, config files+60
Danger medium hits: 335Medium-risk: admin panels, config files+60
Danger medium hits: 358Medium-risk: admin panels, config files+60
Danger medium hits: 82Medium-risk: admin panels, config files+60
Danger medium hits: 85Medium-risk: admin panels, config files+60
Danger medium hits: 90Medium-risk: admin panels, config files+60
Danger strong hits: 16High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 21High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 23High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 24High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 37High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 38High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 46High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 47High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 586High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 609High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 61High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 632High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 670High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 70High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 71High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 84High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 85High-risk paths: shells, RCE vectors, exploits+100
Σ = 3395
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

2026-08-23 10:43:03
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio >= 60% (+25), Burst 100/10s (+35), Burst 103/10s (+35)
2026-09-06 01:05:44
Last malicious request observed
Total score reached: 255/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Microsoft Corporation
AS8075 · 🇪🇸 Spain
06

Recommendations

Actions taken & recommended

  • IP 158.158.54.35 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 158.158.54.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🔎 Path Enumeration Protection

Block scanning from 158.158.54.35: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🌊 Traffic Flood Defense

IP 158.158.54.35 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

07

Neighbors in 158.158.54.0/24

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

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

10

Threat Analysis

158.158.54.35 has been assigned a threat score of 255/100 (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 EnumerationRequest Flooding

📊 Threat Analysis

Our monitoring infrastructure has identified 158.158.54.35, geolocated to Madrid, Spain, operating on the network of Microsoft Corporation, as a source of suspicious network activity. Our sensors captured 4,385 malicious requests from this address across a 13-day span, reflecting a sustained attack cadence of ~337.3 requests per day. The address is classified as residential, meaning it likely belongs to an end-user ISP connection. Malicious activity from residential IPs typically indicates device compromise or botnet membership. The dual attack vectors of Path Enumeration combined with Request Flooding indicate a coordinated assault rather than opportunistic scanning. With 115 flagged addresses, Spain represents a significant presence in our threat database. With a threat score of 255/100, 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 Spain

45.67.99.32 (305)158.173.36.160 (305)212.30.33.72 (305)34.175.3.135 (298)34.175.136.81 (295)View all →

🏢 Same network: AS8075

68.155.155.199 (320)20.127.136.245 (318)20.151.200.44 (315)20.220.203.117 (280)20.79.30.30 (280)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.

💡 Botnet Command and Control Evolution

Botnet C2 infrastructure has evolved from centralized IRC channels to resilient peer-to-peer networks, domain generation algorithms, and blockchain-based communication. This evolution makes botnet takedowns increasingly difficult and expensive.

🔍 Check Any IP Address

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