Rigel is a small anti-malware tool for PHP sites.
Latest version is available here
go build rigel.go
MANUL_DB='https://raw.githubusercontent.com/antimalware/manul/master/src/scanner/static/signatures/malware_db.xml'
./rigel --database $MANUL_DB -n 8 --rootdir mysite.com/www/ --filter 'php,inc,js,xml' --skip-soft