ABUSE.MOM
THREAT REPORT

IP Threat Report
177.100.164.13

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-07-28 14:34:20
First seen: 2026-07-27 16:58:49
Last seen: 2026-07-28 14:15:56
60

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 60/100. Total malicious requests observed: 68.

DANGER_PATHRATIO_404REFERER
01

Geolocation & Classification

IP Address
177.100.164.13
Type
Residential
Country
🇧🇷 Brazil
City
Santana do Livramento
ISP
Claro NXT Telecomunicacoes Ltda
Organization
Claro NXT Telecomunicacoes Ltda
Autonomous System
AS28573 Claro NXT Telecomunicacoes Ltda
Hit Count
68
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Danger strong hits: 1High-risk paths: shells, RCE vectors, exploits+25
Foreign refererReferer from unrelated external domain+10
Σ = 60
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

2026-07-27 16:58:49
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio >= 60% (+25), Danger strong hits: 1 (+25), Foreign referer (+10)
2026-07-28 14:15:56
Last malicious request observed
Total score reached: 60/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Claro NXT Telecomunicacoes Ltda
AS28573 · 🇧🇷 Brazil
06

Recommendations

Actions taken & recommended

  • IP 177.100.164.13 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 177.100.164.13 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

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

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

10

Threat Analysis

177.100.164.13 has been assigned a threat score of 60/100 (High). The IP is rated as a high-level threat. Network administrators should implement blocking rules and monitor for any connections from this address.

The following attack categories were identified:

Path Enumeration

📊 Threat Analysis

Network traffic from 177.100.164.13, located in Santana do Livramento, Brazil, operating on the network of Claro NXT Telecomunicacoes Ltda, has been classified as malicious by our automated threat scoring engine. During its 1-day observation window, we recorded 68 hostile requests from this IP — roughly 68 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. Active path scanning has been detected — this IP probes for hundreds of common file and directory names. Brazil currently accounts for 110 blocked IPs in our database, making it a significant source of malicious traffic. At 60/100, this IP presents a meaningful threat. Implement rate limiting with escalation to blocking.

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 Brazil

34.95.200.255 (320)107.149.152.45 (308)34.95.148.192 (298)35.247.222.75 (295)35.247.215.110 (295)View all →

🏢 Same network: AS28573

191.183.38.40 (68)189.4.110.201 (60)177.35.193.59 (60)177.34.156.72 (60)179.222.237.64 (60)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.

💡 Mobile Malware Distribution

Mobile malware reaches devices through unofficial app stores, malicious links, and even occasionally through official stores using obfuscation techniques. Banking trojans, spyware, and ransomware variants specifically designed for mobile platforms continue to proliferate.

🔍 Check Any IP Address

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