SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)
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
May 12, 2025 • 6 mins
Apple Updates Everything
Apple patched all of its operating systems. This update ports a patch for a recently exploited vulnerability to older versions of iOS and macOS.
https://isc.sans.edu/diary/31942
It Is 2025, And We Are Still Dealing With Default IoT Passwords And Stupid 2013 Router Vulnerabilities
Versions of the Mirai botnet are attacking devices made by Unipi Technology. These devices are using...
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Steganography Challenge
Didier revealed the solution to last weekend s cryptography challenge. The image used the same encoding scheme as Didier described before, but the columns and rows were transposed.
https://isc.sans.edu/forums/diary/Steganography%20Challenge%3A%20My%20Solution/31912/
FBI Warns of End-of-life routers
The FBI is tracking larger botnets taking advantage of unpatched routers. Many of ...
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No Internet Access: SSH to the Rescue
If faced with restrictive outbound network access policies, a single inbound SSH connection can quickly be turned into a tunnel or a full-blown VPN
https://isc.sans.edu/diary/No%20Internet%20Access%3F%20SSH%20to%20the%20Rescue!/31932
SAMSUNG magicINFO 9 Server Flaw Still exploitable
The SAMSUNG magicINFO 9 Server Vulnerability we found being exploited last week is ap...
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Example of Modular Malware
Xavier analyzes modular malware that downloads DLLs from GitHub if specific features are required. In particular, the webcam module is inspected in detail.
https://isc.sans.edu/diary/Example%20of%20%22Modular%22%20Malware/31928
Sysaid XXE Vulnerabilities
IT Service Management Software Sysaid patched a number of XXE vulnerabilities. Without authentication, an attacker is able t...
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May 6, 2025 • 6 mins
Python InfoStealer with Embedded Phishing Webserver
Didier found an interesting infostealer that, in addition to implementing typical infostealer functionality, includes a web server suitable to create local phishing sites.
https://isc.sans.edu/diary/Python%20InfoStealer%20with%20Embedded%20Phishing%20Webserver/31924
Android Update Fixes Freetype 0-Day
Google released its monthly Android update. As part ...
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Mirai Now Exploits Samsung MagicINFO CMS CVE-2024-7399
The Mirai botnet added a new vulnerability to its arsenal. This vulnerability, a file upload and remote code execution vulnerability in Samsung s MagicInfo 9 CMS, was patched last August but attracted new attention last week after being mostly ignored so far.
https://isc.sans.edu/diary/Mirai+Now+Exploits+Samsung+MagicINFO+CMS+CVE20247399/31920
New Kali Lin...
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Steganography Challenge
Didier published a fun steganography challenge. A solution will be offered on Saturday.
https://isc.sans.edu/diary/Steganography+Challenge/31910
Microsoft Makes Passkeys Default Authentication Method
Microsoft is now encouraging new users to use Passkeys as the default and only login method, further moving away from passwords
https://www.microsoft.com/en-us/security/blog/20...
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Steganography Analysis With pngdump.py: Bitstreams
More details from Didiear as to how to extract binary content hidden inside images
https://isc.sans.edu/diary/Steganography%20Analysis%20With%20pngdump.py%3A%20Bitstreams/31904
Using Trusted Protocols Against You: Gmail as a C2 Mechanism
Attackers are using typosquatting to trick developers into installing malicious python packages. These python packages...
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April 30, 2025 • 6 mins
Web Scanning for Sonicwall Vulnerabilities CVE-2021-20016
For the last week, scans for Sonicwall API login and domain endpoints have skyrocketed. These attacks may be exploiting an older vulnerability or just attempting to brute force credentials.
https://isc.sans.edu/diary/Web%20Scanning%20Sonicwall%20for%20CVE-2021-20016/31906
The Wizards APT Group SLAAC Spoofing Adversary in the Middle Attacks
ESE...
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April 29, 2025 • 8 mins
More Scans for SMS Gateways and APIs
Attackers are not just looking for SMS Gateways like the scans we reported on last week, but they are also actively scanning for other ways to use APIs and add on tools to send messages using other people s credentials.
https://isc.sans.edu/diary/More%20Scans%20for%20SMS%20Gateways%20and%20APIs/31902
AirBorne: AirPlay Vulnerabilities
Researchers at Oligo revealed over...
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SRUM-DUMP Version 3: Uncovering Malware Activity in Forensics
Mark Baggett released SRUM-DUMP Version 3. The tool simplifies data extraction from Widnows System Resource Usage Monitor (SRUM). This database logs how much resources software used for 30 days, and is invaluable to find out what software was executed when and if it sent or received network data.
https://isc.sans.edu/diary/SRUM-DUMP%20Version%203%3A%20...
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April 27, 2025 • 7 mins
Example of a Payload Delivered Through Steganography
Xavier and Didier published two diaries this weekend, building on each other. First, Xavier showed an example of an image being used to smuggle an executable past network defenses, and second, Didier showed how to use his tools to extract the binary.
https://isc.sans.edu/diary/Example%20of%20a%20Payload%20Delivered%20Through%20Steganography/31892
SAP Netweav...
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Attacks against Teltonika Networks SMS Gateways
Attackers are actively scanning for SMS Gateways. These attacks take advantage of default passwords and other commonly used passwords.
https://isc.sans.edu/diary/Attacks%20against%20Teltonika%20Networks%20SMS%20Gateways/31888
Commvault Vulnerability CVE-2205-34028
Commvault, about a week ago, published an advisory and a fix for a vulnerability in its bac...
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Honeypot Iptables Maintenance and DShield-SIEM Logging
In this diary, Jesse is talking about some of the tasks to maintain a honeypot, like keeping filebeats up to date and adjusting configurations in case your dynamic IP address changes
https://isc.sans.edu/diary/Honeypot%20Iptables%20Maintenance%20and%20DShield-SIEM%20Logging/31876
XRPL.js Compromised
An unknown actor was able to push malicious updates...
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xorsearch.py: Ad Hoc YARA Rules
Adhoc YARA rules allow for easy searches using command line arguments without having to write complete YARA rules for simple use cases like string and regex searches
https://isc.sans.edu/diary/xorsearch.py%3A%20%22Ad%20Hoc%20YARA%20Rules%22/31856
Google Spoofed via DKIM Replay Attack
DKIM replay attacks are a known issue where the attacker re-uses a prior DKIM signature. ...
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It's 2025, so why are malicious advertising URLs still going strong?
Phishing attacks continue to take advantage of Google s advertising services. Sadly, this is still the case for obviously malicious links, even after various anti-phishing services flag the URL.
https://isc.sans.edu/diary/It%27s%202025...%20so%20why%20are%20obviously%20malicious%20advertising%20URLs%20still%20going%20strong%3F/31880
ChatGPT ...
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Microsoft Entra User Lockout
Multiple organizations reported widespread alerts and account lockouts this weekend from Microsoft Entra. The issue is caused by a new feature Microsoft enabled. This feature will lock accounts if Microsoft believes that the password for the account was compromised.
https://www.bleepingcomputer.com/news/microsoft/widespread-microsoft-entra-lockouts-tied-to-new-security-feature-rollout/...
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RedTail: Remnux and Malware Management
A description showing how to set up a malware analysis in the cloud with Remnux and Kasm. RedTail is a sample to illustrate how the environment can be used.
https://isc.sans.edu/diary/RedTail%2C%20Remnux%20and%20Malware%20Management%20%5BGuest%20Diary%5D/31868
Critical Erlang/OTP SSH Vulnerability
Researchers identified a critical vulnerability in the Erlang/OTP SSH...
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April 16, 2025 • 6 mins
Apple Updates
Apple released updates for iOS, iPadOS, macOS, and VisionOS. The updates fix two vulnerabilities which had already been exploited against iOS.
https://isc.sans.edu/diary/Apple%20Patches%20Exploited%20Vulnerability/31866
Oracle Updates
Oracle released it quarterly critical patch update. The update addresses 378 security vulnerabilities. Many of the critical updates are already known vulnerab...
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Online Services Again Abused to Exfiltrate Data
Attackers like to abuse free online services that can be used to exfiltrate data. From the originals , like pastebin,
to past favorites like anonfiles.com. The latest example is gofile.io. As a defender, it is important to track these services to detect exfiltration early
https://isc.sans.edu/diary/Online%20Services%20Again%20Abused%20to%20Exfiltrate%20Data/3186...
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