ABUSE.MOM
THREAT REPORT

IP Threat Report
205.169.39.194

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-26 11:00:24
First seen: 2026-07-27 01:29:50
Last seen: 2026-09-27 01:39:08
70

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 70/100. Total malicious requests observed: 326.

BURSTREFERERUA_CHANGED
01

Geolocation & Classification

IP Address
205.169.39.194
Type
Hosting
Country
🇺🇸 United States
City
Santa Clara
ISP
CenturyLink Communications
Organization
Palo Alto Networks, Inc
Autonomous System
AS3356 Level 3 Parent, LLC
Hit Count
326
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 6/2sAbnormally fast request rate — automated scanning+35
Foreign refererReferer from unrelated external domain+10
UA changedMultiple User-Agents — bot rotation technique+25
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

2026-07-27 01:29:50
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 6/2s (+35), Foreign referer (+10), UA changed (+25)
2026-09-27 01:39:08
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

CenturyLink Communications
AS3356 · 🇺🇸 United States

We have detected 74 malicious IPs from this autonomous system.

View all IPs from AS3356 →
06

Recommendations

Actions taken & recommended

  • IP 205.169.39.194 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 205.169.39.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🌊 Traffic Flood Defense

IP 205.169.39.194 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

🤖 Bot Detection

Address UA spoofing from 205.169.39.194: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

07

Neighbors in 205.169.39.0/24

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

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

10

Threat Analysis

205.169.39.194 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:

Request FloodingUser-Agent Anomaly

📊 Threat Analysis

Threat intelligence analysis has linked 205.169.39.194 to malicious activity originating from Santa Clara, United States, operating on the network of CenturyLink Communications. The address has been under observation since its initial detection. Over a period of 62 days, this IP generated 326 malicious requests, averaging approximately 5.3 requests per day. 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 (Request Flooding and User-Agent Anomaly), suggesting a semi-automated campaign that targets multiple vulnerabilities. Our records show 36,326 malicious IPs originating from United States, positioning it as a major 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

🇺🇸 Top threats from United States

104.28.246.115 (350)104.28.214.122 (350)216.73.160.52 (350)34.187.158.4 (340)34.186.187.208 (340)View all →

🏢 Same network: AS3356

205.169.39.128 (155)205.169.39.71 (155)205.169.39.96 (145)205.169.39.103 (145)205.169.39.74 (145)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.

💡 File Upload Vulnerabilities

Insecure file upload functionality allows attackers to upload web shells, malware, or scripts that execute on the server. Proper validation must check file content, not just extensions, and uploaded files should be stored outside the web root.

🔍 Check Any IP Address

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