SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)

Copyright: © (c) SANS Institute 2024 This work is licensed under a Creative Commons License - Attribution-NonCommercial-ShareAlike - https://creativecommons.org/licenses/by-nc-sa/4.0/

Latest Episodes:

SANS Stormcast Tuesday, July 8th, 2025: Detecting Filename (Windows); Atomic Stealer now with Backdoor; SEO Scams Jul 08, 2025

Show notes

What s My File Name
Malware may use the GetModuleFileName API to detect if it was renamed to a name typical for analysis, like sample.exe or malware.exe
https://isc.sans.edu/diary/What%27s%20My%20%28File%29Name%3F/32084
Atomic macOS infostealer adds backdoor for persistent attacks
Malware analyst discovered a new version of the Atomic macOS info-stealer (also known as 'AMOS') that comes with a backdoor, to attackers persistent access to compromised systems.
https://moonlock.com/amos-backdoor-persistent-access
HOUKEN SEEKING A PATH BY LIVING ON THE EDGE WITH ZERO-DAYS
At the beginning of September 2024, an attacker repeatedly exploited vulnerabilities CVE-2024- 8190, CVE-2024-8963, and CVE-2024-9380 vulnerabilities to remotely execute arbitrary code on vulnerable Ivanti Cloud Service Appliance devices.
https://www.cert.ssi.gouv.fr/uploads/CERTFR-2025-CTI-009.pdf
SEO Scams Targeting Putty, WinSCP, and AI Tools
Paid Google ads are advertising trojaned versions of popuplar tools like ssh and winscp
https://arcticwolf.com/resources/blog-uk/malvertising-campaign-delivers-oyster-broomstick-backdoor-via-seo-poisoning-and-trojanized-tools/

SANS Stormcast Monday, July 7th, 2025: interesting usernames; More sudo issues; CitrixBleed2 PoC; Short Lived Certs Jul 07, 2025

Show notes

Interesting ssh/telnet usernames
Some interesting usernames observed in our honeypots
https://isc.sans.edu/diary/A%20few%20interesting%20and%20notable%20ssh%20telnet%20usernames/32080
More sudo trouble
The host option in Sudo can be exploited to execute commands on unauthorized hosts.
https://www.stratascale.com/vulnerability-alert-CVE-2025-32462-sudo-host
CitrixBleed2 PoC Posted (CVE-2025-5777)
WatchTwer published additional details about the recently patched CitrixBleed vulnerability, including a PoC exploit.
https://labs.watchtowr.com/how-much-more-must-we-bleed-citrix-netscaler-memory-disclosure-citrixbleed-2-cve-2025-5777/
Instagram Using Six Day Certificates
Instagram changes their TLS certificates daily and they use certificates that are just about to expire in a week.
https://hereket.com/posts/instagram-single-day-certificates/

SANS Stormcast Thursday July 3rd, 2025: sudo problems; polymorphic zip files; cisco vulnerablity Jul 03, 2025

Show notes

Sudo chroot Elevation of Privilege
The sudo chroot option can be leveraged by any local user to elevate privileges to root, even if no sudo rules are defined for that user.
https://www.stratascale.com/vulnerability-alert-CVE-2025-32463-sudo-chroot
Polymorphic ZIP Files
A zip file with a corrupt End of Central Directory Record may extract different data depending on the tool used to extract the files.
https://hackarcana.com/article/yet-another-zip-trick
Cisco Unified Communications Manager Static SSH Credentials Vulnerability
A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to log in to an affected device using the root account, which has default, static credentials that cannot be changed or deleted.
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-ssh-m4UBdpE7

SANS Stormcast Monday June 30th, 2025: Scattered Spider; AMI BIOS Exploited; Secure Boot Certs Expiring; Microsoft Resliliency Initiative Jun 30, 2025

Show notes

Scattered Spider Update
The threat actor known as Scattered Spider is in the news again, this time focusing on airlines. But the techniques used by Scattered Spider, social engineering, are still some of the most dangerous techniques used by various threat actors.
https://cloud.google.com/blog/topics/threat-intelligence/unc3944-proactive-hardening-recommendations?e=48754805
AMI BIOS Vulnerability Exploited CVE-2024-54085
A vulnerability in the Redfish remote access software, including AMI s BIOS, is now being exploited.
https://go.ami.com/hubfs/Security%20Advisories/2025/AMI-SA-2025003.pdf
https://eclypsium.com/blog/ami-megarac-vulnerabilities-bmc-part-3/
Act now: Secure Boot certificates expire in June 2026
The Microsoft certificates used in Secure Boot are the basis of trust for operating system security, and all will be expiring beginning June 2026.
https://techcommunity.microsoft.com/blog/windows-itpro-blog/act-now-secure-boot-certificates-expire-in-june-2026/4426856
The Windows Resiliency Initiative: Building resilience for a future-ready enterprise
Microsoft announced more details about its future security and resilience strategy for Windows. In particular, security tools will no longer have kernel access, which is supposed to prevent a repeat of the Cloudflare issue, but may also restrict security tools functionality.
https://blogs.windows.com/windowsexperience/2025/06/26/the-windows-resiliency-initiative-building-resilience-for-a-future-ready-enterprise/

SANS Stormcast Friday, June 27th, 2025: Open-VSX Flaw; Airoha Bluetooth Vulnerablity; Critical Cisco Identity Service Engine Vuln; Jun 27, 2025

Show notes

Open-VSX Flaw Puts Developers at Risk
A flaw in the open-vsx extension marketplace could have let to the compromise of any extension offered by the marketplace.
https://blog.koi.security/marketplace-takeover-how-we-couldve-taken-over-every-developer-using-a-vscode-fork-f0f8cf104d44
Bluetooth Vulnerability Could Allow Eavesdropping
A vulnerability in the widely used Airoha Bluetooth chipset can be used to compromise devices and use them for eavesdropping.
https://insinuator.net/2025/06/airoha-bluetooth-security-vulnerabilities/
Critical Cisco Identity Services Engine Vulnerability
Multiple vulnerabilities in Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an unauthenticated, remote attacker to issue commands on the underlying operating system as the root user.
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-unauth-rce-ZAd2GnJ6

SANS Stormcast Thursday, June 26th, 2025: Another Netscaler Vuln; CentOS Web Panel Vuln; IP Based Certs Jun 26, 2025

Show notes

NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2025-6543
Citrix patched a memory overflow vulnerability leading to unintended control flow and denial of service.
https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694788
Remote code execution in CentOS Web Panel - CVE-2025-48703
An arbitrary file upload vulnerability in the user (not admin) part of Web Panel can be used to execute arbitrary code
https://fenrisk.com/rce-centos-webpanel
Gogs Arbitrary File Deletion Vulnerability
Due to the insufficient patch for the CVE-2024-39931, it's still possible to delete files under the .git directory and achieve remote command execution.
https://github.com/gogs/gogs/security/advisories/GHSA-wj44-9vcg-wjq7
Let s Encrypt Will Soon Issue IP Address-Based Certs
Let s Encrypt is almost ready to issue certificates for IP address SANs from Let's Encrypt's production environment. They'll only be available under the short-lived profile (which has a 6-day validity period), and that profile will remain allowlist-only for a while.
https://community.letsencrypt.org/t/getting-ready-to-issue-ip-address-certificates/238777

SANS Stormcast Tuesday, June 24th, 2025: Telnet/SSH Scan Evolution; Fake Sonicwall Software; File-Fix vs Click-Fix Jun 25, 2025

Show notes

Quick Password Brute Forcing Evolution Statistics
After collecting usernames and passwords from our ssh and telnet honeypots for about a decade, I took a look back at how scans changed. Attackers are attempting more passwords in each scans than they used to, but the average length of passwords did not change.
https://isc.sans.edu/diary/Quick%20Password%20Brute%20Forcing%20Evolution%20Statistics/32068
Introducing FileFix A New Alternative to ClickFix Attacks
Attackers may trick the user into copy/pasting strings into file explorer, which will execute commands similar to the ClickFix attack that tricks users into copy pasting the command into the start menu s cmd feature.
https://www.mobile-hacker.com/2025/06/24/introducing-filefix-a-new-alternative-to-clickfix-attacks/
Threat Actors Modify and Re-Create Commercial Software to Steal User s Information
A fake Sonicwall Netextender clone will steal user s credentials
https://www.sonicwall.com/blog/threat-actors-modify-and-re-create-commercial-software-to-steal-users-information

SANS Stormcast Tuesday, June 24th, 2025: Ichano ATHome IP Camera Scans; Netscaler Vulnerability; WinRar Vulnerability Jun 24, 2025

Show notes

Scans for Ichano AtHome IP Cameras
A couple days ago, a few sources started scanning for the username super_yg and the password 123. This is associated with Ichano IP Camera software.
https://isc.sans.edu/diary/Scans%20for%20Ichano%20AtHome%20IP%20Cameras/32062
Critical Netscaler Security Update CVE-2025-5777
CVE 2025-5777 is a critical severity vulnerability impacting NetScaler Gateway, i.e. if NetScaler has been configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server.
https://www.netscaler.com/blog/news/critical-security-updates-for-netscaler-netscaler-gateway-and-netscaler-console/
WinRar Vulnerability CVE-2025-6218
WinRar may be tricked into extracting files into attacker-determined locations, possibly leading to remote code execution
https://www.win-rar.com/singlenewsview.html?&L=0&tx_ttnews%5Btt_news%5D=276&cHash=b5165454d983fc9717bc8748901a64f9

SANS Stormcast Monday, June 23rd, 2025: ADS and Python; More Secure Cloud PCs; Zend.to Path Traversal; Parser Differentials Jun 23, 2025

Show notes

ADS & Python Tools
Didier explains how to use his tools cut-bytes.py and filescanner to extract information from alternate data streams.
https://isc.sans.edu/diary/ADS%20%26%20Python%20Tools/32058
Enhanced security defaults for Windows 365 Cloud PCs
Microsoft announced more secure default configurations for its Windows 365 Cloud PC offerings.
https://techcommunity.microsoft.com/blog/windows-itpro-blog/enhanced-security-defaults-for-windows-365-cloud-pcs/4424914
CVE-2025-34508: Another File Sharing Application, Another Path Traversal
Horizon3 reveals details of a recently patched directory traversal vulnerability in zend.to.
https://horizon3.ai/attack-research/attack-blogs/cve-2025-34508-another-file-sharing-application-another-path-traversal/
Unexpected security footguns in Go's parsers
Go parsers for JSON and XML are not always compatible and can parse data in unexpected ways. This blog by Trails of Bits goes over the various security implications of this behaviour.
https://blog.trailofbits.com/2025/06/17/unexpected-security-footguns-in-gos-parsers/

SANS Stormcast Friday, June 20th, 2025: New Employee Phishing; Malicious Tech Support Links; Social Engineering App Sepecific Passwords Jun 20, 2025

Show notes

How Long Until the Phishing Starts? About Two Weeks
After setting up a Google Workspace and adding a new user, it took only two weeks for the new employee to receive somewhat targeted phishing emails.
https://isc.sans.edu/diary/How%20Long%20Until%20the%20Phishing%20Starts%3F%20About%20Two%20Weeks/32052
Scammers hijack websites of Bank of America, Netflix, Microsoft, and more to insert fake phone numbers
Scammers are placing Google ads that point to legitimate companies sites, but are injecting malicious text into the page advertising fake tech support numbers
https://www.malwarebytes.com/blog/news/2025/06/scammers-hijack-websites-of-bank-of-america-netflix-microsoft-and-more-to-insert-fake-phone-number
What s in an ASP? Creative Phishing Attack on Prominent Academics and Critics of Russia
Targeted attacks are tricking victims into creating app-specific passwords to Google resources.
https://cloud.google.com/blog/topics/threat-intelligence/creative-phishing-academics-critics-of-russia

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