Report for IP: 42.51.37.22

Threat LevelHIGH55/1002 rule types
6 incidents on record · 2 rule types · active attack detected · last seen 23d ago
PTR N/A
Org / ASN Henan Telcom Union Technology Co., LTD
Country 🇨🇳 China
City Shenzhen, Guangdong
Timezone Asia/Shanghai

Attack Analysis

🇨🇳 China · Shenzhen · 56005 · Henan Telcom Union Technology Co., LTD
SSH: Login Attempt — Non-Existent User
This IP attempted to authenticate via SSH using a username that does not exist on the system. This is characteristic of automated credential-stuffing attacks cycling through common username wordlists (admin, root, ubuntu, pi, etc.).
SSH: Invalid User Flood
This IP attempted SSH logins using 5 or more invalid usernames within 2 minutes — a credential-stuffing attack cycling through common account names (admin, root, ubuntu, deploy, pi). This indicates an automated tool probing for default or common accounts.

Reports (6)

Date Severity Description
8 Jul 2026 - 22:21 medium SSH: Login attempt using non-existent user
8 Jul 2026 - 22:12 medium SSH: Login attempt using non-existent user
8 Jul 2026 - 22:03 high SSH: Invalid user flood — 5+ attempts in 120s
8 Jul 2026 - 22:03 medium SSH: Login attempt using non-existent user
8 Jul 2026 - 22:02 medium SSH: Login attempt using non-existent user
8 Jul 2026 - 21:44 high SSH: Login attempt using non-existent user