Update

Still going on, see recent detection here: https://urlquery.net/report/a0906225-a5e1-47e7-9776-eddd24e53007
Consider also rule here: https://supportforums.cisco.com/t5/event-analysis/blacklist-dns-request-for-known-malware-domain-counter-yadro-ru/td-p/3075516

polonus (volunteer website security analyst and website error-hunter)