

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 7, 2023 • 7min
ISC StormCast for Friday, April 7th, 2023
Self Extracting Archives
https://www.crowdstrike.com/blog/self-extracting-archives-decoy-files-and-their-hidden-payloads/
loldrivers
https://www.loldrivers.io
Trellix Privilege Escalation
https://kcm.trellix.com/corporate/index?page=content&id=SB10396
HP LaserJet Vuln.
https://support.hp.com/us-en/document/ish_7905330-7905358-16/hpsbpi03838

Apr 6, 2023 • 7min
ISC StormCast for Thursday, April 6th, 2023
Exploration of DShield Cowrie Data with jq
https://isc.sans.edu/diary/Exploration%20of%20DShield%20Cowrie%20Data%20with%20jq/29714
NEXX Garage Door Vulnerability
https://medium.com/@samsabetan/the-uninvited-guest-idors-garage-doors-and-stolen-secrets-e4b49e02dadc
OneNote Changes
https://learn.microsoft.com/en-us/deployoffice/security/onenote-extension-block
MSFT Changes to Auto-Update
https://learn.microsoft.com/en-us/windows/release-health/windows-message-center#3060
NPM Spam DDoS Attacks
https://www.helpnetsecurity.com/2023/04/05/flood-of-malicious-packages-results-in-npm-registry-dos/

Apr 5, 2023 • 6min
ISC StormCast for Wednesday, April 5th, 2023
Analyzing the efile.com Malware
https://isc.sans.edu/diary/Analyzing+the+efilecom+Malware+efail/29712
ALPHV Ransomware Targets Backup Installations
https://www.mandiant.com/resources/blog/alphv-ransomware-backup
Sophos Web Appliance Vulnerability (and EoL)
https://www.sophos.com/en-us/security-advisories/sophos-sa-20230404-swa-rce
Zimbra Exploited in Targeted Attacks
https://www.proofpoint.com/us/blog/threat-insight/exploitation-dish-best-served-cold-winter-vivern-uses-known-zimbra-vulnerability

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


