ABUSE.MOM
THREAT REPORT

IP Threat Report
209.58.157.123

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 07:11:36
First seen: 2026-02-24 11:00:06
Last seen: 2026-02-24 11:00:06
140

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 140/100. Total malicious requests observed: 1.

DANGER_PATHRATIO_404REDIRECT_PROBEBURSTREFERER
01

Geolocation & Classification

IP Address
209.58.157.123
Type
Hosting
Country
🇺🇸 United States
City
Dallas
ISP
Leaseweb USA, Inc.
Organization
Leaseweb USA, Inc
Autonomous System
AS394380 Leaseweb USA, Inc.
Hit Count
1
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger medium hits: 8Medium-risk: admin panels, config files+60
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
Burst: 5 req / 2sAbnormally fast request rate — automated scanning+35
Foreign referer seenReferer from unrelated external domain+10
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

2026-02-24 11:00:06
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger medium hits: 8 (+60), 404 ratio 40-60% (+15), Probe pattern 302->404 same path (+20)
2026-02-24 11:00:06
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

Leaseweb USA, Inc.
AS394380 · 🇺🇸 United States
06

Recommendations

Actions taken & recommended

  • IP 209.58.157.123 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 209.58.157.0/24
  • 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 209.58.157.123: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 209.58.157.123.

07

Neighbors in 209.58.157.0/24

Other blocked IPs from the same /24 subnet — indicates systematic abuse from this network range.

08

Open Ports & Services

Network reconnaissance data from Shodan. Open ports may indicate running services, misconfigurations, or potential attack surfaces.

OPEN PORTS (6)
PortServiceRiskDescription
80HTTPLowHTTP web server — standard web traffic
4444UnknownLowService on port 4444
7777UnknownLowService on port 7777
36505UnknownLowService on port 36505
44444UnknownLowService on port 44444
55555UnknownLowService on port 55555
KNOWN VULNERABILITIES (CVE) (8)
CVE IDLink
CVE-2019-9511NVD →
CVE-2025-23419NVD →
CVE-2019-9513NVD →
CVE-2019-9516NVD →
CVE-2023-44487NVD →
CVE-2019-20372NVD →
CVE-2021-3618NVD →
CVE-2021-23017NVD →

🔴 This host has 8 known CVEs associated with its exposed services. Multiple vulnerabilities suggest gaps in patch management. Review each CVE in the NVD database.

DETECTED TECHNOLOGIES
f5:nginx:1.16.0

Data source: Shodan InternetDB. Scanned independently of abuse.mom.

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

209.58.157.123 has been assigned a threat score of 140/100 (Critical). This places it in the critical threat category. Immediate blocking is strongly advised across all network perimeters.

The following attack categories were identified:

Path EnumerationRequest Flooding

📊 Threat Analysis

The address 209.58.157.123 originates from Dallas, United States, operating on the network of Leaseweb USA, Inc.. It was identified through automated analysis of incoming network traffic across monitored endpoints. Our sensors captured 1 malicious requests from this address across a 1-day span, reflecting a sustained attack cadence of ~1 requests per day. This address belongs to a datacenter or cloud hosting provider. Hosting IPs are frequently leveraged by threat actors who rent cheap VPS instances specifically for conducting attacks. The dual attack vectors of Path Enumeration combined with Request Flooding indicate a coordinated assault rather than opportunistic scanning. United States currently accounts for 119 blocked IPs in our database, making it a significant source of malicious traffic. At 140/100, this is an extremely high-risk address. All traffic should be considered hostile.

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

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🏢 Same network: AS394380

172.241.118.51 (165)172.241.118.54 (165)172.255.83.134 (130)172.241.112.217 (105)209.58.157.96 (105)View all →
12

Security Intelligence

💡 Directory Traversal Attacks

Path traversal attacks attempt to access files outside the intended directory by manipulating file path references. Attackers use sequences like ../ to reach sensitive system files such as /etc/passwd or application configuration files.

💡 Remote Code Execution (RCE)

RCE vulnerabilities allow attackers to execute arbitrary code on target servers. These critical flaws often arise from deserialization bugs, template injection, or file upload vulnerabilities, and represent the highest severity class of web application weaknesses.

🔍 Check Any IP Address

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