Malware Cleanup
Malware is one of the most common issues with Wordpress Sites , this is mainly due to plugins which are not updates or simply bad user practices.Recommended approach to cleanup -
This guide assumes that wp cli is availbile -
Search
Check maldet logs if detection were made
cat /usr/local/maldetect/logs/event_log | grep hits
grep search based on signatures found
grep -r -e 'exp' --include=*.php
Reset Wordpress
Change directory to the WordPress install directory , In most cases the best way to start is check core files are infected and replace them if required , First Check if checksums are ok -
wp core verify-checksums --allow-root
Before changing any files, please get the wordpress version to know which version needs to be downloaded.
cat wp-includes/version.php | grep wp_version
Then remove the core files and reinstall wordpress ( overwrite files only )
rm -rf wp-admin ; rm -rf wp-includes
rm -rf {SITEUID}
wp core download --force --skip-content --version= --allow-root
Scan with Third party plugin
As a third step we will use Wordfence to do a final scan to find files which we might have missed .
Delete files
Delete files with confirmation
find . -type f -name "*.php" -exec rm -i {} \;
Find all PHP usuall in uploads and delte them
find . -name "*.php" -type f {-delete}
Quick edit files
:n for next files , :N for prev file , dd to delte line , :wn to write and move to next
grep -rl pattern | xargs -o vim