Threat Insight<p>In a new blog, Proofpoint threat research engineers disclosed their discovery of Amatera Stealer, a newly rebranded and upgraded malware-as-a-service (MaaS) version of the ACR Stealer. <br> <br>Read the blog: <a href="https://brnw.ch/21wTvkx" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">brnw.ch/21wTvkx</span><span class="invisible"></span></a></p><p>While maintaining its roots in ACR Stealer, the latest variant, <a href="https://infosec.exchange/tags/Amatera" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Amatera</span></a>, introduces new features—including sophisticated delivery mechanisms, anti-analysis defenses, and a revamped control structure—making it stealthier and dangerous.</p><p>See the Threat Research Engineering blog for IOCs and Emerging Threat signatures.</p><p><a href="https://infosec.exchange/tags/securityengineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>securityengineering</span></a> <a href="https://infosec.exchange/tags/detectionengineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>detectionengineering</span></a> <a href="https://infosec.exchange/tags/securitycontrols" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>securitycontrols</span></a></p>