See 26 instances of the malware here: https://urlquery.net/report/cf2d822f-d182-4673-a221-c71c8731e7e7
The following plugins were detected by reading the HTML source of the WordPress sites front page.wordpress-seo 5.7 latest release (9.2.1) Update required
https://yoa.st/1uj
gallery-slideshow 1.4 latest release (1.4.1) Update required
popup-maker 1.6.3 latest release (1.7.30) Update required
https://wppopupmaker.com/
wp-responsive-menu 2.0.5 latest release (3.0.4) Update required
http://magnigenie.com/wp-responsive-menu-mobile-menu-plugin-wordpress/
Plugins are a source of many security vulnerabilities within WordPress installations, always keep them updated to the latest version available and check the developers plugin page for information about security related updates and fixes.
2 vulnerable jQuery libraries detected: https://retire.insecurity.today/#!/scan/44f74a246326588a8764b833771e0586310648b11ac61d55c5abb49df96672d0
Malware and outdated software detected: https://sitecheck.sucuri.net/results/theblackdouglas.com
Also consider: https://aw-snap.info/file-viewer/?protocol=not-secure&ref_sel=GSP2&ua_sel=ff&chk-cache=&fs=1&tgt=dGh7Ymx8XmsjXXVnbHxzLl5dbWA%3D~enc
8 security issues flagged here: https://webscan.upguard.com/#/theblackdouglas.com/
With potentially suspicious content: https://quttera.com/detailed_report/theblackdouglas.com
Severity: Potentially Suspicious
Reason: Detected potentially suspicious content.
Details: Detected potentially suspicious initialization of function pointer to JavaScript method write __tmpvar1455829405 = write;
What the script does: https://stackoverflow.com/questions/7765594/javascript-code-injected-into-site-can-you-help-me-decrypt-it
57 security related recommendations: https://webhint.io/scanner/fde0c98d-e657-4788-b6fc-57053dc5a4aa#Security
polonus (volunteer 3rd party cold reconnaissance website security analyst and website error-hunter)