27.13.28.7
Neutral Activity
There is no recent abuse activity, or the IP address is whitelisted.
- ISP
- China Unicom Chongqing Province Network
- Usage Type
- Fixed Line ISP
- ASN
- AS4837
- Domain Name
- chinaunicom.cn
- Country
- 🇨🇳 China
- City
- Chongqing, Chongqing
No reports in the last 60 days
27.13.28.7 has been reported 61 times. The most recent report is from .
The full history is preserved below and remains searchable. A 0% score reflects the absence of recent activity, but this is not a guarantee that earlier reports were invalid. Abuse confidence score decays, naturally, over time, when the abusive activity stops.
Abuse Reports
Total reports
61 from
36 distinct
reporters
First reported
Most recent report
| Reporter | IoA Timestamp (UTC) | Comment | Categories |
|---|---|---|---|
| 🇩🇪 Paul Smith |
Email Auth Brute force attack 5/3 in last day
|
Brute-Force | |
| 🇺🇸 lintelcorpo |
Yesterday, this IP was the source of 7 failed authentications targeting 7 unique usernames on our Mail Server at 216.21.193.119.
|
Brute-Force | |
| 🇨🇦 bmcg |
2025-12-02 11:20:29 server smtpd[37645]: warning: unknown[27.13.28.7]:46558: SASL CRAM-MD5 authentication failed: (reason unavailable), sasl_username=evite
|
Brute-Force | |
| Anonymous |
Failed login attempt detected by Fail2Ban in plesk-postfix jail
|
Brute-Force | |
| 🇩🇪 Paul Smith |
Email Auth Brute force attack 24/4 in last day
|
Brute-Force | |
| 🇺🇸 lintelcorpo |
Yesterday, this IP was the source of 14 failed authentications targeting 14 unique usernames on our Mail Server at 216.21.193.119.
|
Brute-Force | |
| Anonymous |
SMTP brute force - auth failed
|
Brute-Force Exploited Host | |
| 🇹🇭 thaizone.com |
Mail credential brute-force attack (SMG1 [2]) #1
|
Email Spam Brute-Force | |
| 🇺🇦 MakselPr |
|
Brute-Force | |
| 🇩🇪 itak |
SMTP SASL Brute-Force Attack
|
Port Scan Hacking Brute-Force | |
| 🇺🇸 MSchienle |
Dec 04 22:32:03 customvisuals postfix/smtpd[22827]: warning: unknown[27.13.28.7]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
|
Email Spam | |
| 🇸🇪 triplecode |
Reported from hMailServer
|
Email Spam | |
| 🇬🇧 [email protected] |
...
|
Brute-Force SSH | |
| 🇮🇹 www.tana.it |
SMTP auth dictionary attack
|
Brute-Force | |
| 🇹🇭 thaizone.com |
Password guessing attack (SM11) #1
|
Email Spam Brute-Force |
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