我的 php 项目有我从未创建过的文件，并且它一直在增长，我该怎么办？

问：

我正在处理一个遗留的php oscommerce项目，我发现了一个我没有创建的文件，名为“imagers.php”。文件的内容如下所示。文件正在写入中，并且大小不断增长。我应该开始研究哪个领域？

QUERY select code, title, symbol_left, symbol_right, decimal_point, thousands_point, decimal_places, value from currencies
RESULT Resource id #21 
QUERY select languages_id, name, code, image, directory from languages order by sort_order
RESULT Resource id #27 
QUERY delete from whos_online where time_last_click < '1686056585'
RESULT 1 
QUERY select count(*) as count from whos_online where session_id = 'bgsj8nm84fqg8g4eul131dshu0'
RESULT Resource id #35 
QUERY insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url) values ('0', 'Guest', 'bgsj8nm84fqg8g4eul131dshu0', '', '1686057485', '1686057485', '')
RESULT 1 
QUERY select banners_id, date_scheduled from banners where date_scheduled != ''
RESULT Resource id #45 
QUERY select b.banners_id, b.expires_date, b.expires_impressions, sum(bh.banners_shown) as banners_shown from banners b, banners_history bh where b.status = '1' and b.banners_id = bh.banners_id group by b.banners_id
RESULT Resource id #48 
QUERY select specials_id from specials where status = '1' and now() >= expires_date and expires_date > 0
RESULT Resource id #52 
QUERY select information_id, headline from information_db where status='1' order by sort_order
RESULT Resource id #61 
QUERY select c.categories_id, cd.categories_name, c.parent_id from categories c, categories_description cd where c.parent_id = '0' and c.categories_id != '17' and c.categories_id = cd.categories_id and cd.language_id='4' order by sort_order, cd.categories_name
RESULT Resource id #64 
QUERY select count(*) as total from products p, products_to_categories p2c where p.products_id = p2c.products_id and p.products_status = '1' and p2c.categories_id = '90'
RESULT Resource id #67 
QUERY select categories_id from categories where parent_id = '90'
RESULT Resource id #70 
QUERY select count(*) as total from products p, products_to_categories p2c where p.products_id = p2c.products_id and p.products_status = '1' and p2c.categories_id = '91'
RESULT Resource id #73 
QUERY select categories_id from categories where parent_id = '91'
RESULT Resource id #76 
QUERY select count(*) as total from products p, products_to_categories p2c where p.products_id = p2c.products_id and p.products_status = '1' and p2c.categories_id = '92'
RESULT Resource id #79 
QUERY select categories_id from categories where parent_id = '92'
RESULT Resource id #82 

我已经检查了access_log，在成像仪仍在增长时access_log.php它没有采取任何行动。我怎样才能阻止这种情况？以及我的网站上正在发生的事情。