This tweet showcases a creative WAF bypass technique using the payload 'cat /etc/hosts'. By using different commands like 'tac', 'man', 'nl', 'less', 'more', 'strings', 'tail', and 'head' on the /etc/hosts file, the attacker can potentially evade the WAF protections. The tweet hints at more details in the next post, so follow DarkShadow for further updates.