I can't see or replicate your Bing Webmaster Tool scans, from partial screens it's hard to understand. I thought it was a domain problem because when I searched on Bing the entire domain is not present. For example, it's not a problem caused by the URLs or errors you entered in the first post.
The site was probably penalized and removed manually, the only way you have is through the official Bing support. You have to tell them that the malware is no longer present, that you have updated the CMS version and set up security systems, and consequently ask for it to be unblocked.