All news with #cornflake v3 tag
Thu, August 21, 2025
ClickFix Campaign Delivers CORNFLAKE.V3 Backdoor via Web
🛡️ Mandiant observed a campaign using the ClickFix social‑engineering lure to trick victims into copying and running PowerShell commands via the Windows Run dialog, yielding initial access tracked as UNC5518. That access is monetized and used by other groups to deploy a versatile backdoor, CORNFLAKE.V3, in PHP and JavaScript forms. CORNFLAKE.V3 supports HTTP-based payload execution, Cloudflare-tunneled proxying and registry persistence; researchers recommend disabling Run where possible, tightening PowerShell policies and increasing logging and user training to mitigate the risk.