Japanese Text Hacking

Hi, would just like to kindly ask..
Will there be a way to clean the sitemap URLs and resubmit it to google as these annoying foreign texts suddenly showed up when I was searching my website on Google.
(which definitely got hacked)
I’ve been told by the one who handles the hosting that all hacking files were already fixed after the last hacking that’s been done but now I didn’t know that this malware is affecting the SEO and I’ve submitted the sitemap so it’s all affected. I was thinking of resubmitting a new sitemap (one which is not having affected pages) but how do I do that? Please

Hoping for anyone’s help please.. :/
Thank you