Is 121.1.75.44 malicious?
IP reputation report for 121.1.75.44: blocklist detections, geolocation, ASN, WHOIS and security posture, aggregated from 100+ threat intelligence sources.
121.1.75.44 is listed on 34 threat intelligence sources
Detected by 34 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 detections34 sources
Categoriesphishing, malware, attack, suspicious, attacks, abuse, malicious, botnet, c2
Confidence score100/100
Aggregated confidence across the sources reporting this indicator.
Last updated2026-07-06
Network & location
LocationSancheong-gun, Gyeongsangnam-do, South Korea
ISPSeokyung Cable Television Co.. Ltd.
ASNAS9694 — Seokyung Cable Television Co.. Ltd.
Network121.1.72.0/21
CompanySeokyung Cable Television Co.. Ltd.
InfrastructureProxy
Security posture
Open ports22, 53, 80, 8090, 8099, 8100, 9997, 9998
Detections
- Romain Marcoux - Malicious IPsphishing
- Bitwire - Inbound Blocklistmalware
- FireHOL - Blocklist Deattack
- FireHOL - Blocklist De Imapattack
- FireHOL - Blocklist De Mailattack
- FireHOL - Firehol Level2attack
- Opendbl Net - Blocklistde All.listmalware
- Blocklist - All Attacks (48h)attack
- Blocklist - All Mail attacks (48h)attack
- IPsum Level 1suspicious
- IPsum Level 2suspicious
- SMTP Greetattack
- Ultimate Hosts Blacklist - Blocklist.demalware
- FireHOL blocklist.de – fail2ban offendersattacks
- IPsum – malicious IP feedmalware
- ThreatHive - Hive Blocklist
- T145 - Black Mirror IPv4 Blocklistmalware
- Blocklist - All IMAP attacks (1h)attack
- Duggytuxy - Blacklist Ips For Fortinet Firewall Aa.txt
- Borestad - AbuseIPDB Blocklist (1d)abuse
- Data-Shield IPv4 Blocklistmalware
- Opendbl Net - Ipsum.listmalware
- IPsum Level 3suspicious
- IPsum Level 4suspicious
+10 more sources in the full report.