ABUSE.MOM
THREAT REPORT

IP Threat Report
42.115.249.61

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-25 18:56:09
First seen: 2026-09-11 11:02:56
Last seen: 2026-09-20 02:10:53
130

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 130/100. Total malicious requests observed: 317.

DANGER_PATHRATIO_404REDIRECT_PROBEREFERERUA_CHANGED
01

Geolocation & Classification

IP Address
42.115.249.61
Type
Residential
Country
🇻🇳 Vietnam
City
Hanoi
ISP
FPT Telecom Company
Organization
Vietnam Internet Network Information Center
Autonomous System
AS18403 FPT Telecom Company
Hit Count
317
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Danger medium hits: 10Medium-risk: admin panels, config files+60
Danger medium hits: 15Medium-risk: admin panels, config files+60
Danger medium hits: 20Medium-risk: admin panels, config files+60
Danger medium hits: 25Medium-risk: admin panels, config files+60
Danger medium hits: 28Medium-risk: admin panels, config files+60
Danger medium hits: 30Medium-risk: admin panels, config files+60
Danger medium hits: 35Medium-risk: admin panels, config files+60
Danger medium hits: 45Medium-risk: admin panels, config files+60
Danger medium hits: 5Medium-risk: admin panels, config files+50
Foreign refererReferer from unrelated external domain+10
Probe 302→404Behavioral anomaly detected by automated analysis+20
UA changedMultiple User-Agents — bot rotation technique+25
Σ = 600
03

Observed Activity

Reconstructed HTTP requests from server access logs. Target domains redacted for security.

[redacted]
GET
/
200
Requests shown: 1 · HTTP 404: 0 · Dangerous patterns: 0

* Typical request patterns for detected signatures. Actual target domains are redacted.

04

Timeline

2026-09-11 11:02:56
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), Danger medium hits: 10 (+60), Danger medium hits: 15 (+60)
2026-09-20 02:10:53
Last malicious request observed
Total score reached: 130/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

FPT Telecom Company
AS18403 · 🇻🇳 Vietnam

We have detected 97 malicious IPs from this autonomous system.

View all IPs from AS18403 →
06

Recommendations

Actions taken & recommended

  • IP 42.115.249.61 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 42.115.249.0/24
  • 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 42.115.249.61 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🤖 User-Agent Anomaly Defense

IP 42.115.249.61 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

07

Neighbors in 42.115.249.0/24

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

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

10

Threat Analysis

42.115.249.61 has been assigned a threat score of 130/100 (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 EnumerationUser-Agent Anomaly

📊 Threat Analysis

Our monitoring infrastructure has identified 42.115.249.61, geolocated to Hanoi, Vietnam, operating on the network of FPT Telecom Company, as a source of suspicious network activity. During its 8-day observation window, we recorded 317 hostile requests from this IP — roughly 39.6 per day on average. This residential IP is likely a compromised consumer device. Home routers and IoT equipment with default credentials are prime targets for botnet operators. The dual attack vectors of Path Enumeration combined with User-Agent Anomaly indicate a coordinated assault rather than opportunistic scanning. Our records show 1,189 malicious IPs originating from Vietnam, positioning it as a major contributor to global threat activity. With a threat score of 130/100, 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 Vietnam

103.98.152.152 (285)180.93.0.112 (280)103.216.118.66 (273)183.91.14.218 (255)163.223.211.27 (253)View all →

🏢 Same network: AS18403

42.114.19.219 (183)42.116.119.228 (180)42.118.97.114 (173)1.53.55.90 (168)42.112.79.247 (130)View all →
12

Security Intelligence

💡 Vulnerability Scanning Explained

Vulnerability scanning is the automated process of probing web applications for known weaknesses. Attackers use tools like Nuclei, Nikto, and ZAP to test thousands of hosts per hour, looking for exposed configuration files, outdated software, and default credentials.

💡 Content Delivery Network Risks

CDNs can inadvertently mask the true origin of malicious traffic, making attribution difficult. Attackers abuse CDN services to proxy their attacks, leverage cached content for amplification, and exploit misconfigurations in CDN-to-origin connections.

🔍 Check Any IP Address

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