{"id":1813,"date":"2025-09-24T14:33:00","date_gmt":"2025-09-24T14:33:00","guid":{"rendered":"https:\/\/infosec-daily.com\/?page_id=1813"},"modified":"2025-09-24T14:33:00","modified_gmt":"2025-09-24T14:33:00","slug":"unc5221-uses-brickstorm-backdoor-to-infiltrate-u-s-legal-and-technology-sectors","status":"publish","type":"page","link":"https:\/\/infosec-daily.com\/?page_id=1813","title":{"rendered":"UNC5221 Uses BRICKSTORM Backdoor to Infiltrate U.S. Legal and Technology Sectors"},"content":{"rendered":"<p>Companies in the legal services, software-as-a-service (SaaS) providers, Business Process Outsourcers (BPOs), and technology sectors in the U.S. have been targeted by a suspected China-nexus cyber espionage group to deliver a known backdoor referred to as BRICKSTORM.<br \/>\nThe activity, attributed to UNC5221 and closely related, suspected China-nexus threat clusters, is designed to facilitate<\/p>","protected":false},"excerpt":{"rendered":"<p>Companies in the legal services, software-as-a-service (SaaS) providers, Business Process Outsourcers (BPOs), and technology sectors in the U.S. have been targeted by a suspected China-nexus cyber espionage group to deliver&hellip;<\/p>\n","protected":false},"author":1,"featured_media":1814,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"saved_in_kubio":false,"footnotes":""},"class_list":["post-1813","page","type-page","status-publish","has-post-thumbnail","hentry"],"kubio_ai_page_context":{"short_desc":"","purpose":"general"},"_links":{"self":[{"href":"https:\/\/infosec-daily.com\/index.php?rest_route=\/wp\/v2\/pages\/1813","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/infosec-daily.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/infosec-daily.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/infosec-daily.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/infosec-daily.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1813"}],"version-history":[{"count":0,"href":"https:\/\/infosec-daily.com\/index.php?rest_route=\/wp\/v2\/pages\/1813\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/infosec-daily.com\/index.php?rest_route=\/wp\/v2\/media\/1814"}],"wp:attachment":[{"href":"https:\/\/infosec-daily.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1813"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}