ISC Stormcast For Monday, May 4th, 2026 https://isc.sans.edu/podcastdetail/9916, (Mon, May 4th)
2026-05-04T07:23:44Z•7458d2d3a845555a4ba00dc7157e44098cdd2cc81fa4ca13df6021c425fd7d19
MacSynchomebrewhoneypotincident-responselibredtailmacOSmalwarepatchreconnaissancestealersupply-chainvulnerabilitieswiresharkx-vercel-set-bypass-cookie
What happened
The ISC SANS diary (May 4, 2026) highlights several actionable items: Wireshark 4.6.5 was released fixing 43 vulnerabilities (38 CVEs) and 35 bugs — administrators should prioritize updating network analysis hosts. A malicious advertisement targeting Homebrew users is distributing the MacSync stealer (macOS credential/data theft) via a fake/compromised package or ad, indicating active macOS supply-chain/ad-based distribution. Additional notes from honeypots describe recon/odd web requests (including requests with an X-Vercel-Set-Bypass-Cookie header) and a guest diary warning about risks in 'l
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- sans_isc_diary
- Record identifier
- 7458d2d3a845555a4ba00dc7157e44098cdd2cc81fa4ca13df6021c425fd7d19
- Enrichment time
- 2026-05-04T07:23:44Z
- AI-assisted enrichment
- Yes
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