Hi there! Having the same issue:
~/public_html/wp-content/cache/object/bca/e86/bcae8634ef2bb12c8d87563f1f4fa52e.php
Known exploit = [Fingerprint Match] [Hacker Sig Exploit [P1271]]
I used to use All-in-One WP Migration but deleted it about a month ago. Any progress here?
Thank you