ABUSE.MOM
THREAT REPORT

IP Threat Report
5.42.104.209

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-25 19:47:02
First seen: 2026-10-16 10:45:51
Last seen: 2026-10-25 04:06:10
120

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 120/100. Total malicious requests observed: 144.

BURSTRATIO_404UA_CHANGED
01

Geolocation & Classification

IP Address
5.42.104.209
Type
Hosting
Country
🇷🇺 Russia
City
Moscow
ISP
JSC "TIMEWEB"
Organization
JSC "TIMEWEB"
Autonomous System
AS9123 JSC TIMEWEB
Hit Count
144
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Burst 10/10sAbnormally fast request rate — automated scanning+35
Burst 10/2sAbnormally fast request rate — automated scanning+35
UA changedMultiple User-Agents — bot rotation technique+25
Σ = 120
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

2026-10-16 10:45:51
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio >= 60% (+25), Burst 10/10s (+35), Burst 10/2s (+35)
2026-10-25 04:06:10
Last malicious request observed
Total score reached: 120/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

JSC "TIMEWEB"
AS9123 · 🇷🇺 Russia

We have detected 34 malicious IPs from this autonomous system.

View all IPs from AS9123 →
06

Recommendations

Actions taken & recommended

  • IP 5.42.104.209 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

🔎 Path Enumeration Protection

Block scanning from 5.42.104.209: 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 5.42.104.209.

🤖 Bot Detection

Address UA spoofing from 5.42.104.209: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

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

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

10

Threat Analysis

5.42.104.209 has been assigned a threat score of 120/100 (Critical). This is a critical-level threat. Systems administrators should treat this IP as hostile and block all inbound connections without exception.

The following attack categories were identified:

Path EnumerationRequest FloodingUser-Agent Anomaly

📊 Threat Analysis

Network traffic from 5.42.104.209, located in Moscow, Russia, operating on the network of JSC "TIMEWEB", has been classified as malicious by our automated threat scoring engine. The address has been active for 8 days in our monitoring system, producing 144 flagged requests at a rate of ~18/day. Classified as a hosting IP, this address likely runs on a rented server or cloud instance. Attackers prefer datacenter IPs for their high bandwidth and disposable nature. The combination of 3 distinct attack vectors indicates a sophisticated, multi-pronged threat actor deploying automated tools that probe multiple attack surfaces simultaneously. Our records show 2,647 malicious IPs originating from Russia, positioning it as a major contributor to global threat activity. With a threat score of 120/100, this IP is among the most dangerous addresses in our database. Immediate and complete blocking is strongly recommended.

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 Russia

157.22.102.172 (313)178.130.54.159 (288)213.183.54.30 (275)185.50.25.14 (273)185.103.167.63 (265)View all →

🏢 Same network: AS9123

91.210.169.45 (183)72.56.238.99 (130)185.114.245.170 (130)185.104.114.127 (95)201.34.128.48 (95)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.

💡 Edge Computing Attack Surface

Edge computing pushes processing closer to users but expands the attack surface. Edge nodes often run in less secure environments than centralized data centers, creating new opportunities for physical access attacks and supply chain compromises.

🔍 Check Any IP Address

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