ABUSE.MOM
THREAT REPORT

IP Threat Report
81.177.186.55

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-26 01:37:15
First seen: 2026-09-25 18:56:06
Last seen: 2026-10-04 00:59:04
100

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 100/100. Total malicious requests observed: 1534.

BURSTMETHODREFERERUA_CHANGEDspam
01

Geolocation & Classification

IP Address
81.177.186.55
Type
Residential
Country
🇷🇺 Russia
City
Elista
ISP
UgSelhoz
Organization
Unknown
Autonomous System
AS199833 OOO SET
Hit Count
1534
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 11/10sAbnormally fast request rate — automated scanning+35
Burst 5/2sAbnormally fast request rate — automated scanning+35
Burst 6/2sAbnormally fast request rate — automated scanning+35
Foreign refererReferer from unrelated external domain+10
POST seenBehavioral anomaly detected by automated analysis+8
UA changedMultiple User-Agents — bot rotation technique+25
spam:no_js_checkSpam/malware keywords in request content+0
Σ = 148
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

2026-09-25 18:56:06
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 11/10s (+35), Burst 5/2s (+35), Burst 6/2s (+35)
2026-10-04 00:59:04
Last malicious request observed
Total score reached: 100/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

UgSelhoz
AS199833 · 🇷🇺 Russia
06

Recommendations

Actions taken & recommended

  • IP 81.177.186.55 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

🌊 Traffic Flood Defense

IP 81.177.186.55 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 81.177.186.55: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

📧 Spam Protection

Enable CAPTCHA on all public forms. Add honeypot fields. Rate-limit submissions to 3 per minute per IP. Deploy Akismet or CleanTalk.

09

Blacklist Status (DNSBL)

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

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

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

10

Threat Analysis

81.177.186.55 has been assigned a threat score of 100/100 (Critical). This represents a critical risk level. Our detection systems have flagged multiple high-confidence indicators of malicious intent from this address.

The following attack categories were identified:

Request FloodingUser-Agent Anomaly

📊 Threat Analysis

IP address 81.177.186.55 has been traced to Elista, Russia, operating on the network of UgSelhoz. Our threat detection systems have flagged this address based on observed malicious behavior patterns. The address has been active for 8 days in our monitoring system, producing 1,534 flagged requests at a rate of ~191.8/day. 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 Request Flooding combined with User-Agent Anomaly indicate a coordinated assault rather than opportunistic scanning. Our records show 2,647 malicious IPs originating from Russia, positioning it as a major contributor to global threat activity. At 100/100, this is an extremely high-risk address. All traffic should be considered hostile.

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: AS199833

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.

💡 Submarine Cable and Internet Exchange Points

Internet traffic routing through a limited number of submarine cables and exchange points creates natural chokepoints. Understanding these routing patterns helps explain geographic clustering of certain attack types and latency-based scanning behaviors.

🔍 Check Any IP Address

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