SANS Stormcast Monday, April 28th: Image Steganography; SAP Netweaver Exploited SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast) podcast

6:41

RAT Dropped By Two Layers of AutoIT Code Xavier explains how AutoIT was used to install a remote admin tool (RAT) and how to analyse such a tool https://isc.sans.edu/diary/RAT%20Dropped%20By%20Two%20Layers%20of%20AutoIT%20Code/31960 RVTools compromise confirmed Robware.net, the site behind the popular tool RVTools now confirmed that it was compromised. The site is currently offline. https://www.robware.net/readMore Trojaned Version of Keepass used to install info stealer and Cobalt Strike beacon A backdoored version of KeePass was used to trick victims into installing Cobalt Strike and other malware. In this case, Keepass itself was not compromised and the malicious version was advertised via search engine optimization tricks https://labs.withsecure.com/publications/keepass-trojanised-in-advanced-malware-campaign Procolored UV Printer Software Compromised The official software offered by the makers of the Procolored UV printer has been compromised, and versions with malware were distributed for about half a year. https://www.hackster.io/news/the-maker-s-toolbox-procolored-v11-pro-dto-uv-printer-review-680d491e17e3 https://www.gdatasoftware.com/blog/2025/05/38200-printer-infected-software-downloads…

SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)

1
SANS Stormcast Monday, May 18th 2025: xorsearch python functions; pwn2own Berlin; senior govt official impersonation; dynamic domain risk 6:30

1 day ago6:30

6:30

xorsearch.py: Python Functions Didier s xorsearch tool now supports python functions to filter output https://isc.sans.edu/diary/xorsearch.py%3A%20Python%20Functions/31858 Pwn2Own Berlin 2025 Last weeks Pwn2Own contest in Berlin allowed researchers to demonstrate a number of new exploits with a large focus on privilege escalation and virtual machine escape. https://www.zerodayinitiative.com/blog/2025/5/17/pwn2own-berlin-2025-day-three-results Senior US Officials Impersonated in Malicious Messaging Campaign The FBI warns of senior US officials being impersonated in text and voice messages. https://www.ic3.gov/PSA/2025/PSA250515 Scattered Spider: TTP Evolution in 2025 Pushscurity provided an update on how Scattered Spider evolved. One thing they noted was that Scattered Spider takes advantage of legit dynamic domain name systems to make detection more difficult https://pushsecurity.com/blog/scattered-spider-ttp-evolution-in-2025/…

SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)

1
SANS Stormcast Friday, May 16th: Increase in Sonicwall Scans; RVTools Compromised?; RountPress 6:26

4 days ago6:26

6:26

Web Scanning SonicWall for CVE-2021-20016 - Update Scans for SonicWall increased by an order of magnitude over the last couple of weeks. Many of the attacks appear to originate from Global Host , a low-cost virtual hosting provider. https://isc.sans.edu/diary/Web%20Scanning%20SonicWall%20for%20CVE-2021-20016%20-%20Update/31952 Google Update Patches Exploited Chrome Flaw Google released an update for Chrome. The update fixes two specific flaws reported by external researchers, CVE-2025-4664 and CVE-2025-4609. The first flaw is already being exploited in the wild. https://chromereleases.googleblog.com/2025/05/stable-channel-update-for-desktop_14.html https://x.com/slonser_/status/1919439373986107814 RVTools Bumblebee Malware Attack Zerodaylabs published its analysis of the RV-Tools Backdoor attack. It suggests that this may not be solely a search engine optimization campaign directing victims to the malicious installer, but that the RVTools distribution site was compromised. https://zerodaylabs.net/rvtools-bumblebee-malware/ Operation RoundPress ESET Security wrote up a report summarizing recent XSS attacks against open-source webmail systems https://www.welivesecurity.com/en/eset-research/operation-roundpress/…

SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)

1
SANS Stormcast Thursday, May 15th: Google Open Redirects; Adobe, Ivanti, and Samsung patches 6:16

5 days ago6:16

6:16

Another day, another phishing campaign abusing google.com open redirects Google s links from it s maps page to hotel listings do suffer from an open redirect vulnerability that is actively exploited to direct users to phishing pages. https://isc.sans.edu/diary/Another%20day%2C%20another%20phishing%20campaign%20abusing%20google.com%20open%20redirects/31950 Adobe Patches Adobe patched 12 different applications. Of particular interest is the update to ColdFusion, which fixes several arbitrary code execution and arbitrary file read problems. https://helpx.adobe.com/security/security-bulletin.html Samsung Patches magicInfo 9 Again Samsung released a new patch for the already exploited magicInfo 9 CMS vulnerability. While the description is identical to the patch released last August, a new CVE number is used. https://security.samsungtv.com/securityUpdates#SVP-MAY-2025 Ivanti Patches Critical Ivanti Neurons Flaw Ivanti released a patch for Ivanti Neurons for ITSM (on-prem only) fixing a critical authentication bypass vulnerability. Ivanti also points to its guidance to secure the underlying IIS server to make exploitation of flaws like this more difficult…

SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)

1
SANS Stormcast Wednesday, May 14th: Microsoft Patch Tuesday; 0-Days patched for Ivanti Endpoint Manager and Fortinet Products 6:38

6 days ago6:38

6:38

Microsoft Patch Tuesday Microsoft patched 70-78 vulnerabilities (depending on how you count them). Five of these vulnerabilities are already being exploited. In particular, a remote code execution vulnerability in the scripting engine should be taken seriously. It requires the Microsoft Edge browser to run in Internet Explorer mode. https://isc.sans.edu/diary/Microsoft%20Patch%20Tuesday%3A%20May%202025/31946 Security Advisory Ivanti Endpoint Manager Mobile (EPMM) May 2025 (CVE-2025-4427 and CVE-2025-4428) Ivanti patched an authentication bypass vulnerability and a remote code execution vulnerability. The authentication bypass can exploit the remote code execution vulnerability without authenticating first. https://forums.ivanti.com/s/article/Security-Advisory-Ivanti-Endpoint-Manager-Mobile-EPMM?language=en_US Fortinet Patches Exploited Vulnerability in API (CVE-2025-32756) Fortinet patched an already exploited stack-based buffer overflow vulnerability in the API of multiple Fortinet products. The vulnerability is exploited via crafted HTTP requests. https://fortiguard.fortinet.com/psirt/FG-IR-25-254…

SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)

1
SANS Stormcast Tuesday, May 12th: Apple Patches; Unipi Technologies Scans; 6:29

7 days ago6:29

6:29

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 a specific username and password combination. In addition, this version of the Mirai botnet will also attempt exploits against an old Netgear vulnerability. https://isc.sans.edu/diary/It%20Is%202025%2C%20And%20We%20Are%20Still%20Dealing%20With%20Default%20IoT%20Passwords%20And%20Stupid%202013%20Router%20Vulnerabilities/31940 Output Messenger Vulnerability The internal messenger application Output Messenger is currently used in sophisticated attacks. Attackers are exploiting a path traversal vulnerability that has not been fixed. https://www.outputmessenger.com/cve-2025-27920/ Commvault Correction Commvault s patch indeed fixes the recent vulnerability. The Pioneer Release Will Dormann used to experiment will only offer patches after it has been registered, which leads to an error when assessing the patch s efficacy. https://www.darkreading.com/application-security/commvault-patch-works-as-intended…

SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)

1
SANS Stormcast Monday, May 11th: Steganography Challenge; End-of-Life Routers; ASUS Driverhub; RV-Tools SEO Poisoning 6:39

8 days ago6:39

6:39

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 these routers are end-of-life, and no patches are available for the exploited vulnerabilities. The attackers are turning the devices into proxies, which are resold for various criminal activities. https://www.ic3.gov/PSA/2025/PSA250507 ASUS Driverhub Vulnerability ASUS Driverhub software does not properly check the origin of HTTP requests, allowing a CSRF attack from any website leading to arbitrary code execution. https://mrbruh.com/asusdriverhub/ RV-Tools SEO Poisoning Varonis Threat Labs observed SEO poisoning being used to trick system administrators into installing a malicious version of RV Tools. The malicious version includes a remote access tool leading to the theft of credentials https://www.varonis.com/blog/seo-poisoning#initial-access-and-persistence…

SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)

1
SANS Stormcast Friday, May 9th: SSH Exfil Tricks; magicINFO still vulnerable; SentinelOne Vulnerability; Commvault insufficient patch 4:57

11 days ago4:57

4:57

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 apparently still not completely patched, and current versions are vulnerable to the exploit observed in the wild. https://www.huntress.com/blog/rapid-response-samsung-magicinfo9-server-flaw Bring Your Own Installer: Bypassing SentinelOne Through Agent Version Change Interruption SentinelOne s installer is vulnerable to an exploit allowing attackers to shut down the end point protection software https://www.aon.com/en/insights/cyber-labs/bring-your-own-installer-bypassing-sentinelone Commvault Still Exploitable A recent patch for Commvault is apparently ineffective and the PoC exploit published by watchTowr is still working against up to date patched systems https://infosec.exchange/@wdormann/114458913006792356…

SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)

1
SANS Stormcast Thursday, May 8th: Modular Malware; Sysaid Vuln; Cisco Wireless Controller Patch; Unifi Protect Camera Patch 5:41

12 days ago5:41

5:41

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 to obtain confidential data and completely compromise the system. watchTowr published a detailed analysis of the flaws including exploit code. https://labs.watchtowr.com/sysowned-your-friendly-rce-support-ticket/ Cisco IOS XE Wireless Controller Software Arbitrary File Upload Vulnerability Cisco Patched a vulnerability in its wireless controller software that may be used to not only upload files but also execute code as root without authentication. https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wlc-file-uplpd-rHZG9UfC Unifi Protect Camera Vulnerability Ubiquity patched a vulnerability in its Protect camera firmware fixing a buffer overflow flaw. https://community.ui.com/releases/Security-Advisory-Bulletin-047-047/cef86c37-7421-44fd-b251-84e76475a5bc…

SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)

1
SANS Stormcast Wednesday, May 7th: Infostealer with Webserver; Android Update; CISA Warning 6:44

13 days ago6:44

6:44

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 of the update, it patched a vulnerability in Freetype that is already being exploited. Android is not alone in using Freetype. Freetype is a very commonly used library to parse fonts like Truetype fonts. https://source.android.com/docs/security/bulletin/2025-05-01 CISA Warns of Unsophistacted Cyber Actors CISA released an interesting title report warning operators of operational technology networks of ubiquitous attacks by unsophisticated actors. It emphasizes how important it is to not forget basic security measures to defend against these attacks. https://www.cisa.gov/news-events/alerts/2025/05/06/unsophisticated-cyber-actors-targeting-operational-technology…

SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)

1
SANS Stormcast Tuesday, May 6th: Mirai Exploiting Samsung magicInfo 9; Kali Signing Key Lost; 6:57

14 days ago6:57

6:57

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 packages. Users must install a new key that will be used going forward. https://www.kali.org/blog/new-kali-archive-signing-key/ The Risk of Default Configuration: How Out-of-the-Box Helm Charts Can Breach Your Cluster Many out-of-the-box Helm charts for Kubernetes applications deploy vulnerable configurations with exposed ports and no authentication https://techcommunity.microsoft.com/blog/microsoftdefendercloudblog/the-risk-of-default-configuration-how-out-of-the-box-helm-charts-can-breach-your/4409560…

SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)

1
SANS Stormcast Monday, May 5th: Steganography Challenge; Microsoft Makes Passkeys Default and Moves Away from Authenticator as Password Manager; Magento Components Backdoored. 5:57

15 days ago5:57

5:57

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/2025/05/01/pushing-passkeys-forward-microsofts-latest-updates-for-simpler-safer-sign-ins/ Microsoft Authenticator Autofill Changes Microsoft will no longer support the use of Microsoft authenticator as a password safe. Instead, it will move users to the password prefill feature built into Microsoft Edge. This change will start in June and should be completed in August at which point you must have moved your credentials out of Microsoft Authenticator https://support.microsoft.com/en-gb/account-billing/changes-to-microsoft-authenticator-autofill-09fd75df-dc04-4477-9619-811510805ab6 Backdoor found in popular e-commerce components SANSEC identified several backdoored Magento e-commerce components. These backdoors were installed as far back as 2019 but only recently activated, at which point they became known. Affected vendors dispute any compromise at this point. https://sansec.io/research/license-backdoor…

SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)

1
SANS Stormcast Friday, May 2nd: More Steganography; Malicious Python Packages GMail C2; BEC to Steal Rent Payments 7:16

18 days ago7:16

7:16

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 will use GMail as a command and control channel by sending email to hard coded GMail accounts https://socket.dev/blog/using-trusted-protocols-against-you-gmail-as-a-c2-mechanism Security Brief: French BEC Threat Actor Targets Property Payments A French business email compromise threat actor is targeting property management firms to send emails to tenents tricking them into sending rent payments to fake bank accounts https://www.proofpoint.com/us/blog/threat-insight/security-brief-french-bec-threat-actor-targets-property-payments SANS.edu Research Journal https://isc.sans.edu/j/research…

SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)

1
SANS Stormcast Thursday, May 1st: Sonicwall Attacks; Cached Windows RDP Credentials 6:28

19 days ago6:28

6:28

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. Attackers use router advertisements to inject fake recursive DNS servers that are used to inject IP addresses for hostnames used to update software. This leads to the victim downloading malware instead of legitimate updates. https://www.welivesecurity.com/en/eset-research/thewizards-apt-group-slaac-spoofing-adversary-in-the-middle-attacks/ Windows RDP Access is Possible with Old Credentials Credential caching may lead to Windows allowing RDP logins with old credentials. https://arstechnica.com/security/2025/04/windows-rdp-lets-you-log-in-using-revoked-passwords-microsoft-is-ok-with-that/?comments-page=1#comments…

SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)

1
SANS Stormcast Wednesday, April 30th: SMS Attacks; Apple Airplay Vulnerabilities 8:51

20 days ago8:51