What could generate such POST data?

Question

PHP

All of a sudden, POST requests with "funny" content began to fall. According to the logs, I realized that this is done by a robot. Help me understand why? And, if you look closer, there's a part that doesn't change. What is it and how is it encoded?

["_POST"]=>
  array(17) {
    ["name"]=>
    string(12) "hhaAgMIuDYMf"
    ["phone"]=>
    string(8) "QLziNYOI"
    ["email"]=>
    string(13) "ZhmwPJzwagBNk"
    ["address"]=>
    string(16) "ElujuefBfNBoLxCL"
    ["textarea"]=>
    string(54) "LsdE0H http://www.FyLitCl7Pf7kjQdDUOLQOuaxTXbj5iNG.com"

    ["_POST"]=>
  array(17) {
    ["name"]=>
    string(9) "BMNHurCiK"
    ["phone"]=>
    string(14) "cVWISYmfijEpUx"
    ["email"]=>
    string(18) "ETQiehitllOGvBguIf"
    ["address"]=>
    string(8) "qALCJArZ"
    ["textarea"]=>
    string(54) "jYIJwU http://www.FyLitCl7Pf7kjQdDUOLQOuaxTXbj5iNG.com"

UPDATE: The most frustrating moment is that this bastard managed to put the goods in the basket and then checkout.

Answer 1

A regular spam bot that spams to all found forms on the page. Nothing wrong with spam.