https://www.theguardian.com/technology/2020/oct/19/russian-hackers-cyber-attack-spree-tactics

US indictment of operatives, accused of launching several attacks, gives a detailed account of how they went about their business

The Sandworm team of Russian military intelligence, alleged to have unleashed computer chaos against the Kremlin’s enemies around the world, is said to operate out of a blue-tinted glass skyscraper known simply as “the tower”.