How to Fix a Japanese Keyword Hack in WordPress

What Does a Japanese Keyword Hack Look Like?

This attack commonly creates unauthorized pages containing Japanese shopping text and links to counterfeit merchandise. Your normal homepage may still look fine. Attackers can vary what visitors and crawlers see, so one normal-looking visit is not enough to rule out a problem. Google’s Japanese keyword hack guide describes these patterns.

Make a short incident list: unfamiliar URLs, changed page titles, the first date you noticed them and any recent account or software changes. Distinguish a legitimate translated page from one nobody on your team published. Treat unexpected search results as a reason to investigate, not an instruction to delete all foreign-language content.

Check Search Console and Your Website Together

Use Search Console to inspect affected URLs and check reported security issues. Review users and owners for unrecognized access. Google’s guide also recommends checking unauthorized verification tokens and suspicious sitemaps. Coordinate removals with the people responsible for your domain so you preserve legitimate ownership.

A search for site:yourdomain.com can help find examples, but it is not a complete inventory. Compare examples with your actual content and server behavior. Note whether an unfamiliar URL produces spam, a redirect, or a genuine not-found response.

Build a Recovery Plan Before Editing

Preserve files and the database before changes. Then separate the recovery into three jobs: remove unauthorized material, repair the route that allowed it, and verify that your normal website still works. A previous backup is useful only if you establish that it predates the compromise and address the original weakness.

Give your maintainer a list of essential functions—contact forms, checkout, login and scheduled tasks—so these can be checked after repair. Avoid treating an infection as an excuse to rebuild URLs or change platforms in the middle of the incident. Keep unrelated changes out of the recovery so problems are easier to isolate.

Remove the Spam Without Breaking Real Pages

Review files and redirect rules against trusted versions, including customizations you need to retain. Inspect the sitemap for injected URLs. Google recommends comparing installed software with clean distributions and investigating files that do not belong. A developer should assess suspicious code rather than deleting files solely because a filename looks unusual.

For a real page that was altered, restore the legitimate content. For an invented spam URL, verify that it no longer serves spam and returns an appropriate not-found response. Do not send every junk address to the homepage: a visitor looking for a nonexistent product should not be presented with an unrelated page as if it were a match.

How Do You Get the Search Results Cleaned Up?

After resolving the infection, follow any security-review instructions in Search Console. Explain what was affected and what you fixed. Check the Manual Actions report separately; a manual action and a security warning have different review workflows.

Inspect important repaired pages and request indexing where appropriate. Make sure your sitemap contains the legitimate URLs you want discovered. Search recovery depends on Google revisiting and processing the changes; cleanup does not guarantee an immediate ranking recovery. Read Google’s Security Issues guidance.

What Should You Monitor After Cleanup?

Keep an incident record and recheck the original problem URLs. Watch for newly created accounts, unexplained changes and spam returning to your sitemap. Establish who maintains plugins, who receives security notices and how backups are checked. Clear ownership makes it easier to spot a repeat incident.

If you need help with Japanese keyword spam and WordPress malware removal, review TrentaHost’s $99 USD cleaning service and open a ticket with your affected URLs. For gambling ads and redirects, our WordPress casino spam guide covers that symptom separately.