Under MS SQL Management, it shows many users automatically generated from IP like 180.76.5.62

I am running Nopcommerce 3.10, and the database is SQL 2008 Express.

There were may fake customers (more than 1000) showing from Admin Console. Following online forum article, I have deleted all those fake customers through SQL Management Studio.

But I found a problem. After I deleted those fake customers, just couple minutes later, it automatically generated some new customer records, with IP like: 180.76.5.***, such as: 180.76.5.62. The IP reverse shows this IP is from a search engine in China: Baidu. Those fake customers were not showed under NopCommerce Admin Console, but showed in the Customers Table under SQL Management Studio.

How to stop this automatic customers? Please help!

Thanks

Bad bots.

You can use
https://www.cloudflare.com/overview
http://www.incapsula.com/

Both have free plan.

I found that Google crawl were also saved there as customers, if I checked from SQL Management Stuido. Any idea?

Thanks!

You should allow access to Google bots, it's ok, they must index your content. Above services know good bots.
Once you'll start using one of this services, you'll see a difference in traffic (many shared hosting providers limit application pools once your traffic reach limit)

Thanks for your advice! Happy New Year!