171.234.75.18

Recent Activity This IP has received recent abuse reports, which causes the score to increase.
Abuse Confidence Score
100% Critical
51 reports
32 reporters · latest 13 hours ago
ISP
Viettel Group
Usage Type
Fixed Line ISP
ASN
AS7552
Domain Name
viettel.com.vn
Country
🇻🇳 Viet Nam
City
Thanh Ha, Hai Phong
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Abuse Reports

Total reports
51 from 32 distinct reporters
First reported
Most recent report
Last 60 days
Top reporter locations 🇩🇪 Germany 8 🇱🇺 Luxembourg 7 🇨🇿 Czechia 5
Most common categories Brute-Force 45 Email Spam 9 Exploited Host 8 Port Scan 5 Hacking 2
Recent reports We have received reports of abusive activity from this IP address within the last week. It is potentially still actively engaged in abusive activities.
Reporter IoA Timestamp (UTC) Comment Categories
🇺🇸 NXTwoThou
SMTP AUTH LOGIN
Brute-Force
🇩🇪 LRob
SMTP AUTH probe | 2026-11-13 08:12 UTC
Port Scan
Anonymous
Brute Force User Attack SMTP
Brute-Force
Anonymous
This IP was detected by CrowdSec triggering local/postfix-sasl-no-ptr-ban
Email Spam Brute-Force
🇳🇱 EGP Abuse Dept
Unsolicited connection to port 465
Port Scan Hacking
🇨🇿 lp
Email account brute force: 2 attempts were recorded from 171.234.75.18 2026-11-11T14:14:20+0100 warning: unknown[171.234.75.18]: SASL authentication failed 2026-11-11T14:18:17+0100 warning: unknown[171.234.75.18]: SASL authentication failed
Brute-Force
Anonymous
SMTP brute force - auth failed
Brute-Force Exploited Host
🇩🇰 powerhostingdk
[mailserver] CrowdSec detected mailscanner/global-spam-aggregate (31 events). Automated abuse report.
Brute-Force
🇨🇿 lp
Email account brute force: 1 attempts were recorded from 171.234.75.18 2026-11-11T02:26:02+0100 warning: unknown[171.234.75.18]: SASL authentication failed
Brute-Force
Anonymous
SMTP brute force - auth failed
Brute-Force Exploited Host
🇭🇺 Lacika555
RdpGuard detected brute-force attempt on SMTP
Brute-Force
🇬🇧 Aetherweb Ark
171.234.75.18 (VN/Vietnam/dynamic-adsl.viettel.vn), N distributed smtpauth attacks on account in the last X secs
Brute-Force
Anonymous
Failed login attempt detected by Fail2Ban in plesk-postfix jail
Brute-Force
🇹🇭 thaizone.com
Password guessing attack (SM11) #1
Email Spam Brute-Force
🇺🇸 Smee
IMAP/SMTP Authentication Failure
Brute-Force

Think this IP has been falsely reported? You may request to have the associated reports reviewed and removed. Request Takedown

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