My custom domain blog is being redirected to Blogholic.info, more specificaly this page http://searchacross.com/?flrdr=yes&nxte=js&dn=blogoholic.info&fp=kXHnDH0xDZIfzljX%2BDZc03diJWrFV5N2iQsAAr%2B8wZ5vQbLTczZHqvpj5dH6ceOni8J3qmgZu6B7HPtmtRSh3liB4Bceya4r6bgt7Hun9mtM%2BFPcjOiVrmJZXmemWKnsednw2Q%3D%3D&prvtof=xjrTXwchHaVL%2BUf32HNg%2BrxOBffsFN1Lkm7UUA%3D%3D&cifr=1
Upon research, we've found that the blogs affected were knowingly using a script provided by Blogoholic, and some portion of the script was apparently discontinued. That causes the URL reference (quoted above) to redirect to the Blogoholic web site itself.
I can't do his solution (remove the bad code) because you have to go to 'Layout' to get to 'Edit HTML', and the redirect to that other website occurs when I double-click on 'Layout', too.
In the latter case, the "Edit HTML" wizard can be accessed easily, by finding out the blogID, then referencing the "Edit HTML" wizard directly by URL. Once in the "Edit HTML" wizard, it's not terribly difficult to find and remove the offending code.