So you installed a fresh copy of WP and your site still redirects?
If your WP is installed in a sub-directory it could be the root site was hacked.
Can you give me some more to go on here? Do you mind posting your infected URLs so I can check them out?
You can also contact me directly if you want and send me a WP Admin login. My direct email is eli AT gotmls DOT net
Aloha, Eli
P.S. don't delete files flagged as Potential Threat. Even if there are Known Threat in a file it does not mean the whole file is bad. My plugin was designed to remove the malicious code from the file without breaking the good code that your site may need to function properly.