ABUSE.MOM
THREAT REPORT

IP Threat Report
46.138.4.104

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-26 10:21:25
First seen: 2026-09-30 18:35:44
Last seen: 2026-10-04 00:58:49
70

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 70/100. Total malicious requests observed: 65.

BURSTREFERERUA_CHANGED
01

Geolocation & Classification

IP Address
46.138.4.104
Type
Residential
Country
🇷🇺 Russia
City
Moscow
ISP
Moscow Local Telephone Network (PJSC MGTS)
Organization
Pjsc Mgts)
Autonomous System
AS25513 PJSC Moscow city telephone network
Hit Count
65
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 5/2sAbnormally 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

2026-09-30 18:35:44
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 5/2s (+35), Foreign referer (+10), UA changed (+25)
2026-10-04 00:58:49
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

Moscow Local Telephone Network (PJSC MGTS)
AS25513 · 🇷🇺 Russia

We have detected 36 malicious IPs from this autonomous system.

View all IPs from AS25513 →
06

Recommendations

Actions taken & recommended

  • IP 46.138.4.104 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

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 46.138.4.104.

🤖 User-Agent Anomaly Defense

IP 46.138.4.104 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

09

Blacklist Status (DNSBL)

This IP was checked against major DNS-based blacklists used by mail servers and firewalls worldwide.

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

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

10

Threat Analysis

46.138.4.104 has been assigned a threat score of 70/100 (High). This classifies it as a high-severity threat. Proactive blocking is recommended for sensitive infrastructure.

The following attack categories were identified:

Request FloodingUser-Agent Anomaly

📊 Threat Analysis

Our monitoring infrastructure has identified 46.138.4.104, geolocated to Moscow, Russia, operating on the network of Moscow Local Telephone Network (PJSC MGTS), as a source of suspicious network activity. Our sensors captured 65 malicious requests from this address across a 3-day span, reflecting a sustained attack cadence of ~21.7 requests per day. Operating from a residential network, this IP may represent a compromised home gateway or IoT device that has been drafted into a larger attack infrastructure. Two attack patterns were identified (Request Flooding and User-Agent Anomaly), suggesting a semi-automated campaign that targets multiple vulnerabilities. With 2,651 flagged addresses, Russia represents a major presence in our threat database. At 70/100, this IP warrants immediate defensive action.

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 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: AS25513

109.252.168.207 (138)109.252.150.101 (138)109.252.175.246 (133)109.252.170.202 (130)109.252.158.136 (118)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.

💡 Behavioral Analysis vs Signature Detection

Signature-based detection matches known attack patterns but misses novel threats. Behavioral analysis identifies anomalies in request patterns, timing, and volume, catching zero-day attacks that signatures cannot recognize.

🔍 Check Any IP Address

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