ISC Stormcast For Thursday, April 23rd, 2026 https://isc.sans.edu/podcastdetail/9904, (Thu, Apr 23rd)

2026-04-23T07:23:45Za3d0f62672ec36f2875a62def617e88cd1efb136844d7de4339c4759130b0237
.wav malwareArechClient2CVE managementEPSSLumma StealerSANS ISCSectop RATaudio steganographycompromised DVRscredential harvestinghoneypotpodcasttdatatelegramvulnerability prioritization

What happened

SANS ISC diary entries (Apr 16–23, 2026) covering multiple operational and research items: guest diaries describing Telegram tdata being abused for credential harvesting (from a honeypot incident) and compromised DVR devices found in the wild; a report of threat actors delivering malware via .wav audio files; an incident analysis of Lumma Stealer infections accompanied by the Sectop RAT (ArechClient2); and guidance/discussion on handling the daily CVE flood using EPSS. Several daily “ISC Stormcast” podcast notices were also published during the week.

Why it matters

A reviewed impact interpretation has not been published for this record.

Evidence and limitations

Source ID
sans_isc_diary
Record identifier
a3d0f62672ec36f2875a62def617e88cd1efb136844d7de4339c4759130b0237
Enrichment time
2026-04-23T07:23:45Z
AI-assisted enrichment
Yes

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