ABUSE.MOM
THREAT REPORT

IP Threat Report
188.255.55.21

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-22 12:34:32
First seen: 2026-02-23 22:49:08
Last seen: 2026-05-22 12:24:57
70

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 70/100. Total malicious requests observed: 997.

FORM_SPAMREFERER
01

Geolocation & Classification

IP Address
188.255.55.21
Type
Residential
Country
🇷🇺 Russia
City
Moscow
ISP
NCNET
Organization
Unknown
Autonomous System
AS42610 PJSC Rostelecom
Hit Count
997
02

Detection Signatures

SignatureDescriptionPointsSeverity
Foreign refererReferer from unrelated external domain+10
Form spam: no_js_checkSpam/malware keywords in request content+0
Σ = 10
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

2026-02-23 22:49:08
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Foreign referer (+10), Form spam: no_js_check
2026-05-22 12:24:57
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

NCNET
AS42610 · 🇷🇺 Russia
06

Recommendations

Actions taken & recommended

  • IP 188.255.55.21 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

📧 Content Abuse Prevention

IP 188.255.55.21 is flooding forms with spam. Implement time-based tokens and block IPs submitting more than 5 forms per hour.

08

Open Ports & Services

Network reconnaissance data from Shodan. Open ports may indicate running services, misconfigurations, or potential attack surfaces.

OPEN PORTS (1)
PortServiceRiskDescription
5060UnknownLowService on port 5060
Hostnames: broadband-188-255-55-21.ip.moscow.rt.ru
PTR: broadband-188-255-55-21.ip.moscow.rt.ru

Data source: Shodan InternetDB. Scanned independently of abuse.mom.

09

Blacklist Status (DNSBL)

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

⛔ LISTED
Spamhaus ZEN

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

10

Threat Analysis

188.255.55.21 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.

📊 Threat Analysis

IP address 188.255.55.21 has been traced to Moscow, Russia, operating on the network of NCNET. Our threat detection systems have flagged this address based on observed malicious behavior patterns. Over a period of 87 days, this IP generated 997 malicious requests, averaging approximately 11.5 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. Russia currently accounts for 108 blocked IPs in our database, making it a significant source of malicious traffic. 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)95.182.125.201 (265)72.56.191.6 (265)91.240.87.225 (263)View all →

🏢 Same network: AS42610

178.140.3.161 (140)46.242.74.4 (80)46.242.105.147 (80)87.240.52.143 (70)109.173.37.175 (70)View all →
12

Security Intelligence

💡 SQL Injection Campaigns

SQL injection remains one of the most common web attack vectors. Attackers inject malicious SQL code through input fields to extract database contents, modify data, or gain administrative access. Automated scanners test for SQLi vulnerabilities at massive scale.

💡 Certificate Transparency Monitoring

Certificate Transparency logs record all publicly trusted TLS certificates. Monitoring these logs reveals unauthorized certificate issuance, phishing domain preparation, and shadow IT — providing early warning of attacks targeting an organizations domain.

🔍 Check Any IP Address

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