ABUSE.MOM
THREAT REPORT

IP Threat Report
13.58.39.129

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-22 12:48:29
First seen: 2026-03-03 15:00:05
Last seen: 2026-03-03 15:00:05
70

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 70/100. Total malicious requests observed: 2.

RATIO_404REDIRECT_PROBEBURST
01

Geolocation & Classification

IP Address
13.58.39.129
Type
Hosting
Country
🇺🇸 United States
City
Dublin
ISP
Amazon.com, Inc.
Organization
AWS EC2 (us-east-2)
Autonomous System
AS16509 Amazon.com, Inc.
Hit Count
2
02

Detection Signatures

SignatureDescriptionPointsSeverity
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
Σ = 70
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

2026-03-03 15:00:05
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), Probe pattern 302->404 same path (+20), Burst: 5 req / 2s (+35)
2026-03-03 15:00:05
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

Amazon.com, Inc.
AS16509 · 🇺🇸 United States
06

Recommendations

Actions taken & recommended

  • IP 13.58.39.129 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

🔎 Directory Scan Defense

IP 13.58.39.129 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🌊 Traffic Flood Defense

IP 13.58.39.129 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

08

Open Ports & Services

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

OPEN PORTS (4)
PortServiceRiskDescription
831UnknownLowService on port 831
4782UnknownLowService on port 4782
9016UnknownLowService on port 9016
16011UnknownLowService on port 16011
KNOWN VULNERABILITIES (CVE) (71)
CVE IDLink
CVE-2009-3766NVD →
CVE-2007-4723NVD →
CVE-2022-37436NVD →
CVE-2026-22795NVD →
CVE-2025-58098NVD →
CVE-2019-11358NVD →
CVE-2023-4807NVD →
CVE-2023-38709NVD →
CVE-2025-59775NVD →
CVE-2024-43204NVD →
CVE-2024-38477NVD →
CVE-2023-3817NVD →
CVE-2023-27522NVD →
CVE-2006-20001NVD →
CVE-2013-0942NVD →
CVE-2026-22796NVD →
CVE-2009-2299NVD →
CVE-2023-0464NVD →
CVE-2025-69421NVD →
CVE-2009-1390NVD →
CVE-2023-0465NVD →
CVE-2012-3526NVD →
CVE-2025-69419NVD →
CVE-2022-4450NVD →
CVE-2024-39573NVD →
+46 more

🔴 This host has 71 known CVEs associated with its exposed services. This volume strongly suggests severely outdated software. Review each CVE in the NVD database.

DETECTED TECHNOLOGIES
jquery:jquery_ui:1.8.2vercel:next.jsapache:http_server:2.4.54jquery:jquery:1.9.1canonical:ubuntu_linuxopenssl:openssl:1.1.1sunix:unixfacebook:react
Hostnames: ec2-13-58-39-129.us-east-2.compute.amazonaws.com
PTR: ec2-13-58-39-129.us-east-2.compute.amazonaws.com

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

13.58.39.129 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:

Path EnumerationRequest Flooding

📊 Threat Analysis

Network traffic from 13.58.39.129, located in Dublin, United States, operating on the network of Amazon.com, Inc., has been classified as malicious by our automated threat scoring engine. During its 1-day observation window, we recorded 2 hostile requests from this IP — roughly 2 per day on average. The IP is classified as hosting/datacenter infrastructure, commonly associated with rented servers used for automated attack campaigns, botnet command-and-control, or vulnerability scanning at scale. Two attack patterns were identified (Path Enumeration and Request Flooding), suggesting a semi-automated campaign that targets multiple vulnerabilities. Our records show 130 malicious IPs originating from United States, positioning it as a significant contributor to global threat activity. The score of 70/100 indicates a confirmed malicious actor. Network-level blocking is appropriate.

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: AS16509

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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.

💡 Network Flow Analysis

Analyzing network flows (NetFlow, sFlow, IPFIX) provides visibility into traffic patterns without inspecting packet contents. Flow data reveals scanning activity, data exfiltration, lateral movement, and command-and-control channels at scale.

🔍 Check Any IP Address

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