Is 121.142.87.218 malicious?
IP reputation report for 121.142.87.218: blocklist detections, geolocation, ASN, WHOIS and security posture, aggregated from 100+ threat intelligence sources.
121.142.87.218 is listed on 54 threat intelligence sources
Detected by 54 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 detections54 sources
Categoriesattack, abuse, malware, phishing, suspicious, bruteforce, attacks, botnet, malicious, c2
Confidence score100/100
Aggregated confidence across the sources reporting this indicator.
Last updated2026-07-14
Network & location
LocationGimpo-si, Gyeonggi-do, South Korea
ISPKorea Telecom
ASNAS4766 — Korea Telecom
Network121.136.0.0/13
CompanyKT
InfrastructureProxy
Detections
- Duggytuxy - Blacklist Ips For Fortinet Firewall Aa.txt
- FireHOL - Blocklist Deattack
- FireHOL - Blocklist De Bruteforceattack
- FireHOL - Blocklist De Apacheattack
- FireHOL - Blocklist De Strongipsattack
- FireHOL - Blocklist Net Uaabuse
- FireHOL - Darklist Deattack
- FireHOL - Firehol Level2attack
- FireHOL - Firehol Level4attack
- FireHOL - Greensnowattack
- Scriptzteam - BlockList V4 Ips.txtmalware
- Opendbl Net - Blocklistde All.listmalware
- Opendbl Net - Ipsum.listmalware
- Romain Marcoux - Malicious Outgoing IPsphishing
- Romain Marcoux - Malicious IPsphishing
- Blocklist - All Attacks (48h)attack
- Blocklist - All Apache attacks (48h)attack
- Blocklist - All StrongIPs attacks (2 month + 5k attacks)attack
- Greensnow - Attacks Multi-protocolsphishing
- CyberCure Blocked URL Feedmalware
- CyberCure Hash Feedmalware
- CyberCure IP Feedmalware
- IPsum Level 2suspicious
- IPsum Level 3suspicious
+30 more sources in the full report.