Is 81.23.173.32 malicious?
IP reputation report for 81.23.173.32: blocklist detections, geolocation, ASN, WHOIS and security posture, aggregated from 100+ threat intelligence sources.
81.23.173.32 is listed on 49 threat intelligence sources
Detected by 49 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 detections49 sources
Categoriesattack, abuse, malware, phishing, suspicious, bruteforce, attacks, botnet, malicious, c2
Confidence score100/100
Aggregated confidence across the sources reporting this indicator.
Last updated2026-07-05
Network & location
LocationMoscow, Moscow, Russia
ISPMTS PJSC
ASNAS8359 — MTS PJSC
Network81.23.173.0/24
CompanyMTS PJSC
InfrastructureProxy
Security posture
Open ports21, 22, 80, 443
Detections
- Duggytuxy - Blacklist Ips For Fortinet Firewall Aa.txt
- FireHOL - Blocklist Deattack
- FireHOL - Blocklist De Sshattack
- FireHOL - Blocklist Net Uaabuse
- FireHOL - Firehol Level2attack
- FireHOL - Firehol Level4attack
- FireHOL - Greensnowattack
- Opendbl Net - Blocklistde All.listmalware
- Opendbl Net - Ipsum.listmalware
- Romain Marcoux - Malicious Outgoing IPsphishing
- Romain Marcoux - Malicious IPsphishing
- Blocklist - All SSH attacks (48h)attack
- Blocklist - All Attacks (48h)attack
- CyberCure Blocked URL Feedmalware
- CyberCure Hash Feedmalware
- CyberCure IP Feedmalware
- IPsum Level 2suspicious
- IPsum Level 3suspicious
- SSH Password Authbruteforce
- SSH Bruteforce IPsbruteforce
- Ultimate Hosts Blacklist - Blocklist.demalware
- IPsum – malicious IP feedmalware
- FireHOL blocklist.de – fail2ban offendersattacks
- ThreatHive - Hive Blocklist
+25 more sources in the full report.