An APT hacking group known as 'Stealth Falcon' exploited a Windows WebDav RCE vulnerability in zero-day attacks since March 2025 against defense and government organizations in Turkey, Qatar, Egypt, and Yemen.
Stealth Falcon (aka 'FruityArmor') is an advanced persistent threat (APT) group known for conducting cyberespionage attacks against Middle East organizations.
The flaw, tracked under CVE-2025-33053, is a remote code execution (RCE) vulnerability that arises from the improper handling of the working directory by certain legitimate system executables.
Specifically, when a .url file sets its WorkingDirectory to a remote WebDAV path, a built-in Windows tool can be tricked into executing a malicious executable from that remote location instead of the legitimate one.
This allows attackers to force devices to execute arbitrary code remotely from WebDAV servers under their control without dropping malicious files locally, making their operations stealthy and evasive.
The vulnerability was discovered by Check Point Research, with Microsoft fixing the flaw in the latest Patch Tuesday update, released yesterday.
Microsoft announced it will expand the list of blocked attachments in Outlook Web and the new Outlook for Windows starting next month.
Microsoft announced it will expand the list of blocked attachments in Outlook Web and the new Outlook for Windows starting next month.
The company said on Monday in a Microsoft 365 Message Center update that Outlook will block .library-ms and .search-ms file types beginning in July.
"As part of our ongoing efforts to enhance security in Outlook Web and the New Outlook for Windows, we're updating the default list of blocked file types in OwaMailboxPolicy," Microsoft said. "Starting in early July 2025, the [.library-ms and .search-ms] file types will be added to the BlockedFileTypes list."
Akamai researcher Yuval Gordon discovered a privilege escalation vulnerability in Windows Server 2025 that allows attackers to compromise any user in Active Directory (AD).
The attack exploits the delegated Managed Service Account (dMSA) feature that was introduced in Windows Server 2025, works with the default configuration, and is trivial to implement.
This issue likely affects most organizations that rely on AD. In 91% of the environments we examined, we found users outside the domain admins group that had the required permissions to perform this attack.
Although Microsoft states they plan to fix this issue in the future, a patch is not currently available. Therefore, organizations need to take other proactive measures to reduce their exposure to this attack. Microsoft has reviewed our findings and approved the publication of this information.
In this blog post, we provide full details of the attack, as well as detection and mitigation strategies.
Researchers say the behavior amounts to a persistent backdoor.
rom the department of head scratches comes this counterintuitive news: Microsoft says it has no plans to change a remote login protocol in Windows that allows people to log in to machines using passwords that have been revoked.
Password changes are among the first steps people should take in the event that a password has been leaked or an account has been compromised. People expect that once they've taken this step, none of the devices that relied on the password can be accessed.
The Remote Desktop Protocol—the proprietary mechanism built into Windows for allowing a remote user to log in to and control a machine as if they were directly in front of it—however, will in many cases continue trusting a password even after a user has changed it. Microsoft says the behavior is a design decision to ensure users never get locked out.
Independent security researcher Daniel Wade reported the behavior earlier this month to the Microsoft Security Response Center. In the report, he provided step-by-step instructions for reproducing the behavior. He went on to warn that the design defies nearly universal expectations that once a password has been changed, it can no longer give access to any devices or accounts associated with it.
Windows administrators from numerous organizations report widespread account lockouts triggered by false positives in the rollout of a new Microsoft Entra ID's
Introduction About Windows Sandbox Windows Enable Windows Sandbox Default user Windows Defender settings Configuration file (.wsb) Virtual Hard Disk (VHDX) The attack methods Emerging threats Monitoring and Investigation for Windows Sandbox Monitoring Monitoring for host machine and network Monitori…
A bug in WhatsApp for Windows can be exploited to execute malicious code by anyone crafty enough to persuade a user to open a rigged attachment - and, to be fair, it doesn't take much craft to pull that off.
The spoofing flaw, tracked as CVE-2025-30401, affects all versions of WhatsApp Desktop for Windows prior to 2.2450.6, and stems from a bug in how the app handles file attachments.
Third-party scripts are a key part of the supply chain, giving 3rd party access to sensitive data or allowing malicious actions in the browser of your user. c/side helps you regain control over your website.
Cado Security Labs details the discovery of a new cross-platform information stealer malware dubbed "Meeten" targeting macOS and Windows users.
A new phishing campaign dubbed 'CRON#TRAP' infects Windows with a Linux virtual machine that contains a built-in backdoor to give stealthy access to corporate networks.
Downgrade attacks: researchers took over the Windows Update process to make the term “fully patched” meaningless on any Windows machine.
Attackers can downgrade Windows kernel components to bypass security features such as Driver Signature Enforcement and deploy rootkits on fully patched systems.
#Attack #Bypass #Computer #Downgrade #Elevation #Escalation #InfoSec #Privilege #Privileges #Rootkit #Security #Windows #of
Microsoft has officially deprecated the Point-to-Point Tunneling Protocol (PPTP) and Layer 2 Tunneling Protocol (L2TP) in future versions of Windows Server, recommending admins switch to different protocols that offer increased security.
#Deprecated #L2TP #Microsoft #PPTP #Server #VPN #Windows
Microsoft has officially announced that Windows Server Update Services (WSUS) is now deprecated, but plans to maintain current functionality and continue publishing updates through the channel.
Microsoft on Tuesday raised an alarm for in-the-wild exploitation of a critical flaw in Windows Update, warning that attackers are rolling back security fixes on certain versions of its flagship operating system.
Researcher showcases hack against Microsoft Windows Update architecture, turning fixed vulnerabilities into zero-days.
Microsoft has started responding with changes it wants to see in the wake of the CrowdStrike botched update. It looks like Windows kernel access is on the agenda.
CrowdStrike has blamed a bug in its own test software for the mass-crash-event it caused last week.
A Wednesday update to its remediation guide added a preliminary post incident review (PIR) that offers the antivirus maker's view of how it brought down 8.5 million Windows boxes.
Businesses worldwide are experiencing outages, including Windows "blue screen of death" errors on their computers, in what has already become one of the
A novel command execution technique dubbed 'GrimResource' uses specially crafted MSC (Microsoft Saved Console) and an unpatched Windows XSS flaw to perform code execution via the Microsoft Management Console.
