此外，WHOIS服务始终需要使用数据库来存储和提取信息。因此，当从用户提供的信息查询数据库时，可能会存在SQL注入。例如，执行whois -h 10.10.10.155 -p 43 "a') or 1=1#"，您可能能够提取数据库中保存的所有信息。
Shodan
port:43 whois
Try Hard Security Group
HackTricks Automatic Commands
Protocol_Name: WHOIS #Protocol Abbreviation if there is one.
Port_Number: 43 #Comma separated if there is more than one.
Protocol_Description: WHOIS #Protocol Abbreviation Spelled out
Entry_1:
Name: Notes
Description: Notes for WHOIS
Note: |
The WHOIS protocol serves as a standard method for inquiring about the registrants or holders of various Internet resources through specific databases. These resources encompass domain names, blocks of IP addresses, and autonomous systems, among others. Beyond these, the protocol finds application in accessing a broader spectrum of information.
https://book.hacktricks.xyz/pentesting/pentesting-smtp
Entry_2:
Name: Banner Grab
Description: Grab WHOIS Banner
Command: whois -h {IP} -p 43 {Domain_Name} && echo {Domain_Name} | nc -vn {IP} 43
