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PODCAST

SANS Stormcast: Daily Cyber Security News

Johannes 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 minutes 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 Storm Center. You may submit questions and comments via our contact form at https://isc.sans.edu/contact.html .

technology

All Episodes

6:57

SANS Stormcast Tuesday, May 6th: Mirai Exploiting...

SANS Stormcast: Daily Cyber Security News ·

2025/05/06

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 Linux Signing Key The Kali Linux maintainers lost access to the secret key used to sign

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5:57

SANS Stormcast Monday, May 5th: Steganography...

SANS Stormcast: Daily Cyber Security News ·

2025/05/05

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 passwordshttps://www.microsoft.com/en-us/security/blog/2025/05/01/pushing-passkeys-forward-microsofts-latest-updates-for-simpler-safer-sign-ins/ Microsoft

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7:16

SANS Stormcast Thursday, May 1st: More Steganography;...

SANS Stormcast: Daily Cyber Security News ·

2025/05/02

Steganography Analysis With pngdump.py: Bitstreams More details from Didiear as to how to extract binary content hidden inside imageshttps://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 will use GMail as a command and control channel by sending email to hard coded GMail

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6:29

SANS Stormcast Thursday, May 1st: Sonicwall Attacks;...

SANS Stormcast: Daily Cyber Security News ·

2025/05/01

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 ESET published an article with details regarding an IPv6-linked attack they have observed

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6:38

SANS Stormcast Friday, April 25th: SMS Gateway Scans;...

SANS Stormcast: Daily Cyber Security News ·

2025/04/25

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 backup software. watchTowr now released a detailed writeup and exploit for the

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5:45

SANS Stormcast Thursday, April 24th: Honeypot...

SANS Stormcast: Daily Cyber Security News ·

2025/04/24

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 changeshttps://isc.sans.edu/diary/Honeypot%20Iptables%20Maintenance%20and%20DShield-SIEM%20Logging/31876 XRPL.js Compromised An unknown actor was able to push malicious updates of the XRPL.js library to NPM. The library is officially recommended for writing Riple (RPL)

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6:18

SANS Stormcast Wednesday, April 23rd: More xorsearch...

SANS Stormcast: Daily Cyber Security News ·

2025/04/23

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 searcheshttps://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. This will work as long as the headers signed by the signature are unchanged. Recently, this

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5:35

SANS Stormcast Tuesday, April 22nd: Phishing via...

SANS Stormcast: Daily Cyber Security News ·

2025/04/22

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 Fingerprinting Documents via Unicode ChatGPT apparently started leaving fingerprints in

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7:31

ANS Stormcast Monday, April 21st: MSFT Entra...

SANS Stormcast: Daily Cyber Security News ·

2025/04/21

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/https://learn.microsoft.com/en-us/entra/identity/authentication/feature-availability

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6:19

SANS Stormcast Friday, April 18th: Remnux Cloud...

SANS Stormcast: Daily Cyber Security News ·

2025/04/18

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 library. Due to this vulnerability, SSH servers written in Erlang/OTP allow arbitrary remote

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6:05

SANS Stormcast Thursday April 17th: Apple Updates;...

SANS Stormcast: Daily Cyber Security News ·

2025/04/17

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 vulnerabilities in open-source software like Apache and Nginx

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6:36

SANS Stormcast ThursdayApril 10th: Getting Past...

SANS Stormcast: Daily Cyber Security News ·

2025/04/10

Getting Past PyArmor PyArmor is a python obfuscation tool used for malicious and non-malicious software. Xavier is taking a look at a sample to show what can be learned from these obfuscated samples with not too much work. https://isc.sans.edu/diary/Obfuscated%20Malicious%20Python%20Scripts%20with%20PyArmor/31840 CenterStack RCE CVE-2025-30406 Gladinet s CenterStack secure file-sharing software suffers from an inadequately protected machine key vulnerability that can be used to modify ViewState

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7:19

SANS Stormcast Tuesday, April 8th: Microsoft Patch...

SANS Stormcast: Daily Cyber Security News ·

2025/04/09

Microsoft Patch Tuesday Microsoft patched over 120 vulnerabilities this month. 11 of these were rated critical, and one vulnerability is already being exploited.https://isc.sans.edu/diary/Microsoft%20April%202025%20Patch%20Tuesday/31838 Adobe Updates Adobe released patches for 12 different products. In particular important are patches for Coldfusion addressing several remote code execution vulnerabilities. Adobe Commercse got patches as well, but none of the vulnerabilities are rated

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6:15

SANS Stormcast Monday April 7th 2025: New Username...

SANS Stormcast: Daily Cyber Security News ·

2025/04/07

New SSH Username Report A new ssh/telnet username reports makes it easier to identify new usernames attackers are using against our telnet and ssh honeypotshttps://isc.sans.edu/diary/New%20SSH%20Username%20Report/31830 Quickshell Sharing is Caring: About an RCE Attack Chain on Quick Share The Google Quick Share protocol is susceptible to several vulnerabilities that have not yet been fully patched, allowing for some file overwrite issues that could lead to the accidental execution of malicious

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6:17

SANS Stormcast Friday, Apr 4th: URL Frequency...

SANS Stormcast: Daily Cyber Security News ·

2025/04/04

Exploring Statistical Measures to Predict URLs as Legitimate or Intrusive Using frequency analysis, and training the model with honeypot data as well as log data from legitimate websites allows for a fairly simple and reliable triage of web server logs to identify possible malicious activity.https://isc.sans.edu/diary/Exploring%20Statistical%20Measures%20to%20Predict%20URLs%20as%20Legitimate%20or%20Intrusive%20%5BGuest%20Diary%5D/31822 Critical Unexploitable Ivanti Vulnerability Exploited

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7:17

SANS Stormcast Wednesday Apr 2nd: Apple Updates...

SANS Stormcast: Daily Cyber Security News ·

2025/04/02

Apple Patches Everything Apple released updates for all of its operating systems. Most were released on Monday with WatchOS patches released today on Tuesday. Two already exploited vulnerabilities, which were already patched in the latest iOS and macOS versions, are now patched for older operating systems as well. A total of 145 vulnerabilities were patched.https://isc.sans.edu/diary/Apple%20Patches%20Everything%3A%20March%2031st%202025%20Edition/31816 VMWare Workstation and Fusion update check

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7:37

SANS Stormcast Tuesday Apr 1st: Apache Camel...

SANS Stormcast: Daily Cyber Security News ·

2025/04/01

Apache Camel Exploit Attempt by Vulnerability Scans A recently patched vulnerability in Apache Camel has been integrated into some vulnerability scanners, like for example OpenVAS. We do see some exploit attempts in our honeypots, but they appear to be part of internal vulnerablity scanshttps://isc.sans.edu/diary/Apache%20Camel%20Exploit%20Attempt%20by%20Vulnerability%20Scan%20%28CVE-2025-27636%2C%20CVE-2025-29891%29/31814 New Security Requirements for Certificate Authorities Starting in July,

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7:16

SANS Stormcast Monday, March 31st: Comparing Phishing...

SANS Stormcast: Daily Cyber Security News ·

2025/03/31

A Tale of Two Phishing Sties Two phishing sites may use very different backends, even if the site itself appears to be visually very similar. Phishing kits are often copied and modified, leading to sites using similar visual tricks on the user facing site, but very different backends to host the sites and reporting data to the miscreant.https://isc.sans.edu/diary/A%20Tale%20of%20Two%20Phishing%20Sites/31810 A Phihsing Tale of DOH and DNS MX Abuse Infoblox discovered a new variant of the Meerkat

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6:15

SANS Stormcast Friday, March 27th: Sitecore...

SANS Stormcast: Daily Cyber Security News ·

2025/03/28

Sitecore "thumbnailsaccesstoken" Deserialization Scans (and some new reports) CVE-2025-27218 Our honeypots detected a deserialization attack against the CMS Sitecore using a thumnailaccesstoken header. The underlying vulnerability was patched in January, and security firm Searchlight Cyber revealed details about this vulnerability a couple of weeks ago.

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7:11

SANS Stormcast Thursday Mar 27th: Classifying Malware...

SANS Stormcast: Daily Cyber Security News ·

2025/03/27

Leveraging CNNs and Entropy-Based Feature Selection to Identify Potential Malware Artifacts of Interest This diary explores a novel methodology for classifying malware by integrating entropy-driven feature selection with a specialized Convolutional Neural Network (CNN). Motivated by the increasing obfuscation tactics used by modern malware authors, we will focus on capturing high-entropy segments within files, regions most likely to harbor malicious functionality, and feeding these distinct

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1,208 results

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