157.66.81.100 is an IP address with 2 abuse reports from 2 distinct reporters, submitted between 10/29/2026 and 10/29/2026. The AbuseTrack community rates it as Medium risk, with a score of 47/100. The most frequently reported threat categories are Brute Force.
Back to the database
ip
157.66.81.100
Medium · 472 reports
VietnamInstant verdict
SUSPICIOUS
47/100
Community risk score
2
Reports
2
Reporters
10/29/2026
First seen
10/29/2026
Last seen
Threat type
Is this your address and is it listed wrongly? Request removal →
Intelligence
Country
Vietnam (VN)
WHOIS (RDAP)
- Country
- Vietnam
- Location
- Quận Năm, Ho Chi Minh City (HCMC)
Report history (2)
Brute Force10/29/2026, 10:04 PM · michaelortnerit
fail2ban: SSH (sshd) brute-force — 3 failed attempts (jail: sshd)
Brute Force10/29/2026, 12:26 AM · NextServ Group
2026-10-29T01:22:47.098908+01:00 dns sshd-session[3941]: Failed password for root from 157.66.81.100 port 40346 ssh2 2026-10-29T01:24:36.671332+01:00 dns sshd-session[3977]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.66.81.100 user=root 2026-10-29T01:24:38.156619+01:00 dns sshd-session[3977]: Failed password for root from 157.66.81.100 port 43710 ssh2 2026-10-29T01:26:27.061732+01:00 dns sshd-session[4029]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.66.81.100 user=root 2026-10-29T01:26:29.133616+01:00 dns sshd-session[4029]: Failed password for root from 157.66.81.100 port 47080 ssh2