AS4538 China Education and Research Network Center

Abuse reported against IP addresses announced by autonomous system 4538. If you run this network, the addresses below are a good place to start an abuse investigation.

In the last 30 days, 50 IP addresses in AS4538 China Education and Research Network Center were reported for abuse, in 72 reports altogether. None of them has a confidence score high enough for the default blocklist yet. The most common reasons were SSH, Brute-Force and Malware Distribution. Most of them are in China.

50addresses reported, 30 days

0on the default blocklist (75+)

72reports against them

2 hsince the latest report

Most reported addresses

Address	Score	Reports	Categories	Last seen
🇨🇳202.112.47.54	65	10	DNS Poisoning FTP Brute-Force Phishing Open Proxy Web Spam Port Scan Hacking SQL Injection Brute-Force Bad Web Bot Exploited Host Web App Attack SSH Vulnerability Scan Malware Distribution Command & Control API Abuse HTTP Flood Fake Accounts Telnet Abuse	10 h
🇨🇳101.76.244.135	52	7	Web Spam Port Scan Hacking Bad Web Bot SSH Vulnerability Scan	2 h
🇨🇳101.76.205.122	38	3	DNS Poisoning FTP Brute-Force Phishing Open Proxy Web Spam SQL Injection Brute-Force Bad Web Bot Exploited Host Web App Attack SSH Vulnerability Scan Malware Distribution Command & Control API Abuse HTTP Flood Fake Accounts Telnet Abuse	14 h
🇨🇳202.112.237.233	29	2	Web Spam Port Scan Bad Web Bot Web App Attack Command & Control	10 h
🇭🇰59.77.42.209	27	3	DNS Poisoning FTP Brute-Force Phishing Open Proxy Web Spam SQL Injection Brute-Force Bad Web Bot Exploited Host Web App Attack SSH Vulnerability Scan Malware Distribution Command & Control API Abuse HTTP Flood Fake Accounts Telnet Abuse	2 d
🇨🇳58.205.208.220	26	2	Web Spam Port Scan Hacking Bad Web Bot Vulnerability Scan	11 h
🇨🇳202.117.147.182	25	2	DNS Poisoning FTP Brute-Force Phishing Open Proxy Web Spam SQL Injection Brute-Force Bad Web Bot Exploited Host Web App Attack SSH Vulnerability Scan Malware Distribution Command & Control API Abuse HTTP Flood Fake Accounts Telnet Abuse	3 d
🇨🇳59.75.8.76	18	1	Brute-Force SSH Malware Distribution	10 h
🇨🇳59.75.8.75	18	1	Brute-Force SSH Malware Distribution	10 h
🇨🇳58.199.250.31	18	1	Brute-Force SSH Malware Distribution	10 h
🇨🇳58.199.250.15	18	1	Brute-Force SSH Malware Distribution	10 h
🇨🇳222.204.232.215	18	1	Brute-Force SSH Malware Distribution	10 h
🇨🇳222.195.76.206	18	1	Brute-Force SSH Malware Distribution	10 h
🇨🇳222.195.74.221	18	1	Brute-Force SSH Malware Distribution	10 h
🇨🇳222.195.70.28	18	1	Brute-Force SSH Malware Distribution	10 h
🇨🇳222.192.184.5	18	1	Brute-Force SSH Malware Distribution	10 h
🇨🇳211.87.183.8	18	1	Brute-Force SSH Malware Distribution	10 h
🇨🇳211.86.155.229	18	1	Brute-Force SSH Malware Distribution	10 h
🇨🇳211.86.155.146	18	1	Brute-Force SSH Malware Distribution	10 h
🇨🇳211.71.30.110	18	1	Brute-Force SSH Malware Distribution	10 h

What they were reported for

Where they are

Block them

The blocklist holds every address with a confidence of 75 or more, in nine formats for firewalls, web servers and SIEMs. Download it with a free API key:

curl -s "https://isipsafe.com/api/v1/blocklist?key=$ISIPSAFE_KEY&format=txt"

See the integration guides for nginx, fail2ban, pfSense, MikroTik and more, or the API reference.

Figures cover the last 30 days and are refreshed hourly; last updated 42 minutes ago.