UPDATED: The seized domain has been turned into a killswitch to prevent the SolarWinds hackers to escalate infections and make new victims. Microsoft and a coalition of tech companies have intervened today to seize and sinkhole a domain that played a central role in the SolarWinds hack, ZDNet has learned from sources familiar with the matter. The domain in question is avsvmcloud[.]com, which served as command and control (C&C) server for malware delivered to around 18,000 SolarWinds customers via a trojanized update for the company's Orion app. SolarWinds Orion updates versions 2019.4 through 2020.2.1, released between March 2020 and June...