Is 5.8.18.51 malicious?
IP reputation report for 5.8.18.51: blocklist detections, geolocation, ASN, WHOIS and security posture, aggregated from 100+ threat intelligence sources.
5.8.18.51 is listed on 27 threat intelligence sources
Detected by 27 threat intelligence sources in the isMalicious dataset — review before trusting this IP.
Threat verdict
VerdictListed on blocklists
Appears on threat intelligence blocklists — treat with caution.
Blocklist detections27 sources
Categoriesbruteforce, malware, phishing, attack, suspicious, abuse, botnet, malicious
Confidence score100/100
Aggregated confidence across the sources reporting this indicator.
First seen2026-05-17
Last updated2026-05-17
Network & location
LocationPhoenix, Arizona, United States
ISPGTHost
ASNAS63023 — GTHost
Network5.8.18.0/24
CompanyRUSSIAN FEDERATION
InfrastructureDatacenter, Proxy
Security posture
Open ports53, 443
Detections
- SSH Password Authbruteforce
- Duggytuxy - Blacklist Ips For Fortinet Firewall Aa.txt
- Opendbl Net - Blocklistde All.listmalware
- Romain Marcoux - Malicious IPsphishing
- Blocklist - All Attacks (48h)attack
- Blocklist - All RFI-Attacks, REG-Bots, IRC-Bots or BadBots attacks (48h)attack
- IPsum Level 2suspicious
- SSH Bruteforce IPsbruteforce
- Telnet Loginbruteforce
- Ultimate Hosts Blacklist - Blocklist.demalware
- IPsum – malicious IP feedmalware
- ThreatHive - Hive Blocklist
- Borestad - AbuseIPDB Blocklist (1d)abuse
- T145 - Black Mirror IPv4 Blocklistmalware
- Data-Shield IPv4 Blocklistmalware
- Opendbl Net - Ipsum.listmalware
- Blocklist - All Apache attacks (48h)attack
- IPsum Level 1suspicious
- IPsum Level 3suspicious
- Telnet Bruteforce IPsbruteforce
- Malware-Filter - Botnet Filter IPsbotnet
- Bitwire - Outbound Blocklistmalware
- Malware-Filter - Botnet Filterbotnet
- Romain Marcoux - Malicious Outgoing IPsphishing
+3 more sources in the full report.