Japanese Keyword Hack Removal & Security

My 3 WordPress websites have been compromised with a Japanese keyword hack. I need an expert to remove the hack and correct the issues on Google Search Console. The sites are using only standard plugins and themes, without any custom modifications.

I would also like to bolster the security of these sites post-cleanup. Please install and configure additional security plugins to safeguard against future attacks.

Ideal skills and experience:
- Extensive knowledge of WordPress
- Proven track record in malware removal
- Proficiency in Google Search Console
- Experience in implementing WordPress security plugins
- Strong understanding of website security best practices.

websites: wordpress-woocommerce with Ocean Wp theme
zaindia.com
hotelvaluemart.com
zaindiab2b.com