GreyNoise<p>An unexpected cluster of malicious IPs in a remote U.S. town led GreyNoise researchers to uncover a 500+ device botnet. Full analysis: <a href="https://www.greynoise.io/blog/how-greynoise-uncovered-global-pattern-voip-based-telnet-attacks" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">greynoise.io/blog/how-greynois</span><span class="invisible">e-uncovered-global-pattern-voip-based-telnet-attacks</span></a> </p><p><a href="https://infosec.exchange/tags/Cybersecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Cybersecurity</span></a> <a href="https://infosec.exchange/tags/ThreatIntel" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ThreatIntel</span></a> <a href="https://infosec.exchange/tags/Botnet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Botnet</span></a> <a href="https://infosec.exchange/tags/VoIP" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>VoIP</span></a> <a href="https://infosec.exchange/tags/GreyNoise" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>GreyNoise</span></a> <a href="https://infosec.exchange/tags/Cyber" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Cyber</span></a> <a href="https://infosec.exchange/tags/Tech" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Tech</span></a></p>