Spamhaus's annual report on botnet activity shows that botherders tend to use popular, legitimate hosting providers, domain registrars and top-level domains when setting up command-and-control servers.
Of all the annual security reports and blog posts that look back at the previous year, that of Spamhaus is one I particularly look forward to, as it always comes with good and… https://www.virusbulletin.com/blog/2018/01/spamhaus-reports-shows-many-botnet-controllers-look-lot-legitimate-servers/
Non-Latin characters in URLs used to trick filters.
Non-Latin characters in URLs used to trick filters. By using internationalized domain names (IDN), spammers manage to avoid detection of URLs in their messages. IDNs were… https://www.virusbulletin.com/blog/2011/03/spammers-exploit-internationalized-domain-names/