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 Monday, June 16th, 2025: Katz Stealer in JPG; JavaScript Attacks; Reviving expired Discord Invites for Evil

June 15, 2025 6:44 1.26 MB ( 4.4 MB less) Downloads: 0

Katz Stealer in JPG
Xavier found some multistage malware that uses an Excel Spreadsheet and an HTA file to load an image that includes embeded a copy of Katz stealer.
https://isc.sans.edu/diary/More+Steganography/32044
https://unit42.paloaltonetworks.com/malicious-javascript-using-jsfiretruck-as-obfuscation/
JavaScript obfuscated with JSF*CK is being used on over 200,000 websites to direct victims to malware
Expired Discord Invite Links Used for Malware Distribution
Expired discord invite links are revived as vanity links to direct victims to malware sites
https://research.checkpoint.com/2025/from-trust-to-threat-hijacked-discord-invites-used-for-multi-stage-malware-delivery/