

SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)
Johannes B. Ullrich
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 .
Episodes
Mentioned books

Apr 4, 2023 • 8min
ISC StormCast for Tuesday, April 4th, 2023
efile.com compromise
https://isc.sans.edu/forums/diary/Supply%20Chain%20Compromise%20or%20False%20Positive%3A%20The%20Intriguing%20Case%20of%20efile.com%20%5Bupdated%20-%20confirmed%20malicious%20code%5D/29708/
Western Digital MyCloud Breach
https://www.bleepingcomputer.com/news/security/western-digital-discloses-network-breach-my-cloud-service-down/
3CX Compromise Affected Cryptocoin Exchanges
https://securelist.com/gopuram-backdoor-deployed-through-3cx-supply-chain-attack/109344/

Apr 3, 2023 • 6min
ISC StormCast for Monday, April 3rd, 2023
Use of X-Frame-Options and CSP frame-ancestors security headers
https://isc.sans.edu/diary/Use%20of%20X-Frame-Options%20and%20CSP%20frame-ancestors%20security%20headers%20on%201%20million%20most%20popular%20domains/29698
oledump supporting MSI Files
https://isc.sans.edu/diary/Update+oledump+MSI+Files/29700/
3CX Update
https://www.3cx.com/blog/news/chrome-blocks-latest-msi/
PinDuoDuo App shows anomalous behaviour
https://edition.cnn.com/2023/04/02/tech/china-pinduoduo-malware-cybersecurity-analysis-intl-hnk/index.html

Mar 31, 2023 • 6min
ISC StormCast for Friday, March 31st, 2023
Malicious 3CX Dekstop App Update
Lifestream (Friday March 31st 1400 ET, 1800 UTC) https://www.youtube.com/watch?v=cCf3Km_j5bY
3CX Update: https://www.3cx.com/blog/news/desktopapp-security-alert/
SentinelOne: https://www.sentinelone.com/blog/smoothoperator-ongoing-campaign-trojanizes-3cx-software-in-software-supply-chain-attack/
Objective-See Blog Post: https://objective-see.org/blog/blog_0x73.html
Crowdstrike: https://www.crowdstrike.com/blog/crowdstrike-detects-and-prevents-active-intrusion-campaign-targeting-3cxdesktopapp-customers/
Bypassing PowerShell Strong Obfuscation
https://isc.sans.edu/diary/Bypassing%20PowerShell%20Strong%20Obfuscation/29692

Mar 30, 2023 • 5min
ISC StormCast for Thursday, March 30th, 2023
Extracting Multiple Streams From OLE Files
https://isc.sans.edu/diary/Extracting%20Multiple%20Streams%20From%20OLE%20Files/29688
3CXDesktop App Compromise
https://www.crowdstrike.com/blog/crowdstrike-detects-and-prevents-active-intrusion-campaign-targeting-3cxdesktopapp-customers/
Microsoft Defender False Positives
https://twitter.com/MSFT365Status/status/1641048649525260289
https://admin.microsoft.com/Adminportal/Home?ref=/servicehealth/:/alerts/DZ534539 (requires login)
Active Exploitation of IBM Aspera Faspex CVE-2022-47986
https://www.rapid7.com/blog/post/2023/03/28/etr-active-exploitation-of-ibm-aspera-faspex-cve-2022-47986/
QNAP Patch for sudo vulnerablity
https://www.qnap.com/en/security-advisory/qsa-23-11

Mar 29, 2023 • 5min
ISC StormCast for Wednesday, March 29th, 2023
Network Data Collector Placement Makes a Difference
https://isc.sans.edu/diary/Network%20Data%20Collector%20Placement%20Makes%20a%20Difference/29664
Throttling and Blocking Email from Persistently Vulnerable Exchange Servers to Exchange Online
https://techcommunity.microsoft.com/t5/exchange-team-blog/throttling-and-blocking-email-from-persistently-vulnerable/ba-p/3762078
Bypassing Wi-Fi Encryption by Manipulating Transmit Queues
https://papers.mathyvanhoef.com/usenix2023-wifi.pdf

Mar 28, 2023 • 5min
ISC StormCast for Tuesday, March 28th, 2023
Another Malicious HTA File Analysis Part 1
https://isc.sans.edu/diary/Another%20Malicious%20HTA%20File%20Analysis%20-%20Part%201/29674
Apple Updates Everything
https://isc.sans.edu/diary/Apple%20Updates%20Everything%20%28including%20Studio%20Display%29/29682
MacStealer Malware Exfiltrates Mac Secrets
https://www.uptycs.com/blog/macstealer-command-and-control-c2-malware

Mar 27, 2023 • 5min
ISC StormCast for Monday, March 27th, 2023
Update for Windows Snipping Tool
https://isc.sans.edu/diary/Microsoft%20Released%20an%20Update%20for%20Windows%20Snipping%20Tool%20Vulnerability/29670
GitHub Rotates SSH Keys
https://github.blog/2023-03-23-we-updated-our-rsa-ssh-host-key/
redis-py vulnerability leads to mixed up sessions, affects ChatGPT
https://openai.com/blog/march-20-chatgpt-outage
Linux Tech Tips YouTube Hack
https://www.theverge.com/2023/3/23/23653115/linus-tech-tips-youtube-hack-crypto-scam
https://isc.sans.edu/diary/Elon%20Musk%20Themed%20Crypto%20Scams%20Flooding%20YouTube%20Today/29434
CyberChef Update
https://github.com/gchq/CyberChef/wiki/Character-encoding,-EOL-separators,-and-editor-features

Mar 24, 2023 • 6min
ISC StormCast for Friday, March 24th, 2023
Cropping and Redacting Images Safely
https://isc.sans.edu/diary/Cropping%20and%20Redacting%20Images%20Safely/29666
Untitled Goose Tool
https://github.com/cisagov/untitledgoosetool
Veeam Vulnerability Details
https://www.horizon3.ai/veeam-backup-and-replication-cve-2023-27532-deep-dive/
Unicode Support in Python used to Evade Detection
https://blog.phylum.io/malicious-actors-use-unicode-support-in-python-to-evade-detection

Mar 23, 2023 • 6min
ISC StormCast for Thursday, March 23rd, 2023
Windows Snipping Tool Privacy Bug: Inspecting PNG Files
https://isc.sans.edu/diary/Windows%2011%20Snipping%20Tool%20Privacy%20Bug%3A%20Inspecting%20PNG%20Files/29660
Acropalypse Detection and Sanitization Tools
https://github.com/infobyte/CVE-2023-21036
WooCommerce Skimmer Reveals Tampered Gateway Plugin
https://blog.sucuri.net/2023/03/woocommerce-skimmer-reveals-tampered-gateway-plugin.html
Netgear Orbi Router Vulnerable
https://blog.talosintelligence.com/vulnerability-spotlight-netgear-orbi-router-vulnerable-to-arbitrary-command-execution/

Mar 22, 2023 • 6min
ISC StormCast for Wednesday, March 22nd, 2023
String Obfuscation: Character Pair Reversal
https://isc.sans.edu/diary/String%20Obfuscation%3A%20Character%20Pair%20Reversal/29654
Windows 11 Snipping Tool Privacy Bug
https://www.bleepingcomputer.com/news/microsoft/windows-11-snipping-tool-privacy-bug-exposes-cropped-image-content/
Malicious .Net Packages
https://jfrog.com/blog/attackers-are-starting-to-target-net-developers-with-malicious-code-nuget-packages/
Spring Framework Vulnerability
https://spring.io/blog/2023/03/20/spring-framework-6-0-7-and-5-3-26-fix-cve-2023-20860-and-cve-2023-20861
Snappy Vulnerability
https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc