Researchers published an exploit for an actively exploited Microsoft Windows vulnerability tracked as CVE-2023-29336. The Microsoft Windows vulnerability CVE-2023-29336 (CVSS score 7.8) is an elevation of privilege issue that resides in the Win32k component. Win32k.sys is a system driver file in the Windows operating system. The driver is responsible for

By Yarden Shafir, Senior Security Engineer WNF (Windows Notification Facility) is an undocumented notification mechanism that allows communication inside processes, between processes, or between user mode processes and kernel drivers. Similar to other notification mechanisms like ETW (Event Tracing for Windows) and ALPC (Advanced Local Procedure Call), WNF c

We like to imagine we’re in total control of our desktop experience, carefully curated to look and work the way we want it to. However, every so often a story comes along which reminds us how little control we have when the big players notice one another's existence. A recent Windows update really wants you to use Edge instead of rival browsers, to the

Researchers at Infoblox have discovered a new toolkit being used in the wild called Decoy Dog. It targets enterprises, and has a fondness for deploying a remote access trojan called Pupy RAT. Activity from the RAT was first noticed earlier this month. Subsequent research revealed that it has been in operation since at least April last year. An initial t

This blog was made possible through contributions from Fred Chidsey and Joseph Lozowski. The X-Force Vulnerability and Exploit Database shows that the number of zero days being released each year is on the rise, but X-Force has observed that only a few of these zero days are rapidly adopted by cyber criminals each year. While every zero day is important and

‘Patch Tuesday, Exploit Wednesday’ is an old hacker adage that refers to the weaponization of vulnerabilities the day after monthly security patches become publicly available. As security improves and exploit mitigations become more sophisticated, the amount of research and development required to craft a weaponized exploit has increased. This i

In February 2023, X-Force posted a blog entitled “Direct Kernel Object Manipulation (DKOM) Attacks on ETW Providers” that details the capabilities of a sample attributed to the Lazarus group leveraged to impair visibility of the malware’s operations. This blog will not rehash analysis of the Lazarus malware sample or Event Tracing for Wind

Overview In this post, IBM Security X-Force Red offensive hackers analyze how attackers, with elevated privileges, can use their access to stage Windows Kernel post-exploitation capabilities. Over the last few years, public accounts have increasingly shown that less sophisticated attackers are using this technique to achieve their objectives. It is therefor

Today is the 20th Safer Internet Day. Since 2004, there's been an annual event designed to "Promote safer and more responsible use of online technology and mobile phones, especially amongst children and young people across the world." 2004 was a key year for several safety activities, encompassing both Safer Internet Day and the Safer Internet Forum. As it w

September’s Patch Tuesday unveiled a critical remote vulnerability in tcpip.sys, CVE-2022-34718. The advisory from Microsoft reads: “An unauthenticated attacker could send a specially crafted IPv6 packet to a Windows node where IPsec is enabled, which could enable a remote code execution exploitation on that machine.” Pure remote vulnerabi

Starting today, January 10th, Windows 7 Enterprise and Professional operating systems will no longer receive security updates. Thus, computers that still run these OS will no longer be protected against critical vulnerabilities. Apart from the operating system itself, browsers (both Edge and third-party browsers), as well as services from other non-Microsoft

Microsoft has released its final monthly batch of security updates for 2022, fixing more than four dozen security holes in its various Windows operating systems and related software. The most pressing patches include a zero-day in a Windows feature that tries to flag malicious files from the Web, a critical bug in PowerShell, and a dangerous flaw in Windows

Russia-linked APT29 cyberespionage group exploited a Windows feature called Credential Roaming to target a European diplomatic entity. Mandiant researchers in early 2022 responded to an incident where the Russia-linked APT29 group (aka SVR group, Cozy Bear, Nobelium, and The Dukes) successfully phished a European diplomatic entity. The attack stands out f

Let’s face it: Having “2022 election” in the headline above is probably the only reason anyone might read this story today. Still, while most of us here in the United States are anxiously awaiting the results of how well we’ve patched our Democracy, it seems fitting that Microsoft Corp. today released gobs of security patches for its ubiquitous W

An unofficial patch for an actively exploited flaw in Microsoft Windows that allows to bypass Mark-of-the-Web (MotW) protections. 0patch released an unofficial patch to address an actively exploited security vulnerability in Microsoft Windows that could allow bypassing Mark-of-the-Web (MotW) protections by using files signed with malformed signatures.