A brief daily summary of what is important in information security. The podcast is published every weekday and designed to get you ready for the day with a brief, usually 5 minute long, summary of current network security related events. The content is late breaking, educational and based on listener input as well as on input received by the SANS Internet Stormcenter. You may submit questions and comments via our contact form at https://isc.sans.edu/contact.html .
SANS Stormcast Wednesday, September 2nd, 2026: Guildma Update; Proxmox 7 Auth Bypass; Windows Hotpatch; Virtualizor BGP Hack
September 01, 2026
6:07
1.12 MB ( 4.01 MB less)
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Guildma (Astaroth) malware infection from Brazilian Portuguese email
https://isc.sans.edu/diary/Guildma%20%28Astaroth%29%20malware%20infection%20from%20Brazilian%20Portuguese%20email/33300
Authentication bypass in EOL Proxmox VE 7 release
https://forum.proxmox.com/threads/proxmox-virtual-environment-security-advisories.149331/page-4#post-867929
https://gist.github.com/nebusecurity/65fe90dd673d395b7926278d7eaf5849
Updated Windows Server hotpatch calendar
https://learn.microsoft.com/en-us/windows/release-health/windows-server-release-info#windows-server-hotpatch-calendar
Virtualizor BGP Hijacking
https://www.virtualizor.com/blog/security-incident-bgp-hijacking/
My Upcoming Classes
https://www.sans.org/profiles/dr-johannes-ullrich