Trellix Global Defenders: Analysis and Protections for BlackByte Ransomware

Trellix Global Defenders: Analysis and Protections for BlackByte Ransomware By Taylor Mullins · February 28, 2022 BlackByte Ransomware has been in the news of late due to a successful attack against a National Football League NFL Franchise and a Joint Cybersecurity Advisory by the Federal Bureau ...

Beyond Memory Corruption Vulnerabilities – A Security Extinction and Future of Exploitation

Beyond Memory Corruption Vulnerabilities – A Security Extinction and Future of Exploitation By Chintan Shah · January 24, 2022 Modern exploitation techniques have changed how adversaries execute their attack strategies and how defenders analyze paths from vulnerability to exploitation. Over the...

Trellix Global Defenders: Follina — Microsoft Office Zero-Day (CVE-2022-30190)

Trellix Global Defenders: Follina — Microsoft Office Zero-Day CVE-2022-30190 By Taylor Mullins, Robin Noyce, Benjamin Marandel · June 3, 2022 Trellix is continuing to monitor the threat activity associated with the Microsoft Office Zero-Day vulnerability that has been dubbed “Follina.”...

CVE-2023-0286: The OpenSSL Who Cried “Severity: High

CVE-2023-0286: The OpenSSL Who Cried “Severity: High” By Mark Bereza · February 9, 2023 This story was also written by John Dunlap. Background It feels like just yesterday that OpenSSL was the subject of widespread scrutiny over two buffer overflow vulnerabilities rated Severity: High. Fortunatel...

The Tale of Two Exploits - Breaking Down CVE-2023-36884 and the Infection Chain

The Tale of Two Exploits - Breaking Down CVE-2023-36884 and the Infection Chain By Chintan Shah · August 24, 2023 Executive Summary On July 11 2023, Microsoft released a patch fixing multiple actively exploited RCE vulnerabilities and disclosed a phishing campaign conducted by the threat actor,...

The Bug Report - May 2023 Edition

The Bug Report – May 2023 Edition By Mark Bereza · June 7, 2023 Why am I here? In the film The Number 23, Jim Carrey masterfully portrays Walter Sparrow, a man who finds himself obsessed with the number 23 after coming upon a book detailing the 23 enigma, and begins to see it everywhere he looks,...

The Bug Report – February 2023 Edition

The Bug Report – February 2023 Edition By Trellix · March 1, 2023 This story was also written by Sam Quinn. Figure 1: Ironic. It could protect other devices from threats, but not itself. Why am I here? Welcome back to the Bug Report! For those in the audience unfamiliar with our shtick, we compil...

The Bug Report January 2023 Edition

The Bug Report – January 2023 Edition By Trellix · February 1, 2023 This story was also written by Jesse Chick. Pretty sure we’ve all seen this episode before. Why am I here? Welcome to the Bug Report, Space-Hash™ Edition! Think about it. We'll wait. For many of us, January began with a headache ...

Beyond File Search: A Novel Method

Beyond File Search: A Novel Method for Exploiting the "search-ms" URI Protocol Handler By Mathanraj Thangaraju and Sijo Jacob · July 26, 2023 Threat Summary In the ever-evolving landscape of cyber threats, malware authors continuously explore new avenues to exploit unsuspecting users. The Windows...

Conti Leaks: Examining the Panama Papers of Ransomware | Trellix

Conti Leaks: Examining the Panama Papers of Ransomware By John Fokker, Jambul Tologonov · March 31, 2022 Introduction It isn’t often the whole world gets an inside look of the business operations of a top tier cybercriminal group. Very early on in the Russian-Ukrainian Crisis the predominantly...

Take a "NetWalk" on the Wild Side

ARCHIVED STORY Take a “NetWalk” on the Wild Side ATR Operational Intelligence Team · AUG 03, 2020 · 25 MIN READ Executive Summary The NetWalker ransomware, initially known as Mailto, was first detected in August 2019. Since then, new variants were discovered throughout 2019 and the beginning of...

Unauthenticated Remote Code Execution in a Wide Range of DrayTek Vigor Routers

Unauthenticated Remote Code Execution in a Wide Range of DrayTek Vigor Routers By Trellix · August 3, 2022 This story was written by Philippe Laulheret. Summary The Trellix Threat Labs Vulnerability Research team has found an unauthenticated remote code execution vulnerability, filed under...

Global ESXiArgs ransomware attack on the back of a two-year-old vulnerability

Global ESXiArgs Ransomware Attack on the Back of a Two-Year-Old Vulnerability By John Fokker, Alfred Alvarado, Tim Hux, Jeffrey Sman, Joao Marques · February 09, 2023 Figure 1: Global Telemetry from Trellix ATLAS for Ips connecting to port 427 Introduction: Early this week, VMware issued a...

Vulnerabilities in Globally Used B. Braun Infusion Pump

ARCHIVED STORY McAfee Enterprise ATR Uncovers Vulnerabilities in Globally Used B. Braun Infusion Pump Douglas McKee and Philippe Laulheret · Aug 24, 2021 Overview As part of our continued goal to provide safer products for enterprises and consumers, we at McAfee Advanced Threat Research ATR...

SMBGhost – Analysis of CVE-2020-0796

ARCHIVED STORY SMBGhost – Analysis of CVE-2020-0796 By Eoin Carrol - March 12, 2020 The Vulnerability The latest vulnerability in SMBv3 is a “wormable” vulnerability given its potential ability to replicate or spread over network shares using the latest version of the protocol SMB 3.1.1. As of...

OpenSSL 3.0 Vulnerabilities: CVE 2022-3786 and CVE 2022-3602

OpenSSL 3.0 Vulnerabilities: CVE 2022-3786 and CVE 2022-3602 By Trellix, Charles McFarland, Sam Quinn · November 1, 2022 This story was also written by Philippe Laulheret. What is it? CVE-2022-3786 and CVE-2022-3602 are buffer overflow vulnerabilities affecting OpenSSL 3.0 and above that were fix...

Keeping A Critical Eye on IoT Devices

Keeping a Critical Eye on IoT Devices By Sam Quinn · April 21, 2022 Trellix Labs is excited to announce the beginning of a new video series which captures one of our senior vulnerability researchers work on hacking an IoT device from beginning to end. This will conclude with the releasing of a ne...

The Bug Report - January 2022 Edition

The Bug Report - January 2022 By Trellix · February 2, 2022 This story was written by Kevin McGrath Your Cybersecurity Comic Relief Image courtesy of https://toggl.com/ Why am I here? Omicron is the 15th letter in the Greek alphabet, used by Donald Knuth to denote Big-O notation, represented zero...

Skuld: The Infostealer that Speaks Golang

Skuld: The Infostealer that Speaks Golang By Ernesto Fernández Provecho · June 13, 2023 In May 2023, the Trellix Advanced Research Center discovered a new Golang stealer, known as Skuld, that compromised systems worldwide, something that security researchers had also noticed. The usage of Golang,...

SMBGhost – Analysis of CVE-2020-0796

ARCHIVED STORY SMBGhost – Analysis of CVE-2020-0796 By Eoin Carrol - March 12, 2020 The Vulnerability The latest vulnerability in SMBv3 is a “wormable” vulnerability given its potential ability to replicate or spread over network shares using the latest version of the protocol SMB 3.1.1. As of...

Scattered Spider: The Modus Operandi

Scattered Spider: The Modus Operandi By Trellix · August 17, 2023 This story was also written by Phelix Oluoch Executive Summary Scattered Spider, also referred to as UNC3944, Scatter Swine, and Muddled Libra, is a financially motivated threat actor group that has been active since May 2022...

Worming your way in through IIS - CVE-2022-21907

Worming your way in through IIS - CVE-2022-21907 By Trellix · January 27, 2022 This story was written by Eion Carroll. IIS HTTP Stack History In the first patch Tuesday of 2022, Microsoft released a patch for a wormable vulnerability CVE-2022-21907 within the IIS HTTP stack, or more specifically...

Countering Follina Attack (CVE- 2022-30190) with Trellix Network Security Platform’s Advanced Detection Features

Countering Follina Attack CVE- 2022-30190 with Trellix Network Security Platform’s Advanced Detection Features By Trellix · July 19, 2022 This blog was also written by Chintan Shah Executive summary During the end of May 2022, independent security researcher reported a vulnerability assigned...

Understanding the Wormable RDP Vulnerability CVE-2019-0708

ARCHIVED STORY RDP Stands for "Really Do Patch!" - Understanding the Wormable RDP Vulnerability CVE-2019-0708 By Eoin Carroll · May 21, 2019 During Microsoft’s May Patch Tuesday cycle, a security advisory was released for a vulnerability in the Remote Desktop Protocol RDP. What was unique in this...

The Bug Report – May 2022 Edition

The Bug Report – May 2022 Edition By Trellix · June 1, 2022 This blog was written by Douglas McKee Your Cybersecurity Comic Relief Source: https://twitter.com/cyb3rops/status/1523579115152064513?s=20&t=jtGMOibQPsPviekQoWKIA Why Am I here? People often come together not only due to common interest...

Countering Follina Attack (CVE- 2022-30190) with Trellix Network Security Platform’s Advanced Detection Features

Countering Follina Attack CVE- 2022-30190 with Trellix Network Security Platform’s Advanced Detection Features By Vinay Kumar and Chintan Shah · July 19, 2022 Executive summary During the end of May 2022, independent security researcher reported a vulnerability assigned CVE-2022-30190 in Microsof...

The Bug Report — September 2022 Edition

The Bug Report — September 2022 Edition By Charles McFarland · October 5, 2022 As long as it works.... Why am I here? Welcome back to the Bug Report, don’t-stub-your-toe edition! For those in the audience unfamiliar with how we do things here, every month we filter down that month’s bugs to just ...

Hidden Malware Discovered in jQuery Migrate: A Stealthy Supply Chain Threat

Hidden Malware Discovered in jQuery Migrate: A Stealthy Supply Chain Threat By Trellix · June 18, 2025 This blog was also written by Trishaan Kalra Introduction What happens when a trusted open source library becomes a conduit for stealthy malware delivery? That question became reality when the...

The Bug Report – July 2022 Edition

The Bug Report – July 2022 Edition By Trellix · August 3, 2022 This story was also written by Kasimir Schulz and Jesse Chick Your Cybersecurity Comic Relief Why am I here? Welcome to the Bug Report, Heat Wave Edition! In the face of chronic irritability and soggy-pants syndrome, we are back at it...

Connected Healthcare: A Cybersecurity Battlefield We Must Win

Connected Healthcare: A Cybersecurity Battlefield We Must Win By Charles McFarland · June 6, 2022 We are commonly taught to prioritize the most critical, severe, or impactful tasks when trying to conquer a list of intimidating problems. Yet, how is this possible when presented with two tasks of...

The Bug Report – April 2023 Edition

The Bug Report – April 2023 Edition By Trellix · May 03, 2023 This story was also written by John Rodriguez. It’s never easy coming back. Why am I here? Seems as if some of us should have stayed at our tropical vacation getaway. Nothing like coming back to the cyber world screeching about...

Finding 0-days with Jackalope

ARCHIVED STORY Finding 0-days with Jackalope By Douglas McKee · September 16, 2021 Overview On March 21st, 2021, the McAfee Enterprise Advanced Threat Research ATR team released several vulnerabilities it discovered in the Netop Vision Pro Education software, a popular schooling software used by...

Fallout Exploit Kit Releases the Kraken Ransomware on Its Victims

ARCHIVED STORY Fallout Exploit Kit Releases the Kraken Ransomware on Its Victims By John Fokker · October 30, 2018 Alexandr Solad and Daniel Hatheway ofRecorded Future are coauthors of this post. Read Recorded Future’s version of this analysis. Rising from the deep, Kraken Cryptor ransomware has...

Old Loader, New Threat: Exploring XWorm RAT's Distribution and Tactics 

Old Loader, New Threat: Exploring XWorm RAT's Distribution and Tactics By Pratik Pachpor and Adarsh S · July 31, 2023 Executive Summary: In March-April 2023, we detected a malicious email campaign delivering .Net based XWorm RAT in which embedded blogspot.com URLs were used as an entry point. Thi...

Akira Ransomware

Akira Ransomware By Alexandre Mundo, Max Kersten · November 29, 2023 First discovered in early 2023, Akira ransomware seemed to be just another ransomware family that entered the market. Its continued activity and numerous victims are our main motivators to investigate the malware’s inner working...

CVE-2023-38831: Navigating the Threat Landscape of the Latest Security Vulnerability

CVE-2023-38831: Navigating the Threat Landscape of the Latest Security Vulnerability By Neeraj Kumar Singh · November 09, 2023 Executive Summary In August 2023, WinRAR released a security patch to address a remote code execution vulnerability in WinRAR's ZIP archive. The vulnerability, known as...

The Bug Report - June 2023 Edition

The Bug Report – June 2023 Edition By Trellix · July 05, 2023 This story was also written by Jesse Chick. Can I have a word with the developers who greenlit these vulns? Why am I here? "To our newcomers, welcome! To our old hands, welcome back!" Iykyk. Every month, we chronicle the disruptive new...

Trellix Global Defenders: Follina — Microsoft Office Zero-Day (CVE-2022-30190)

Trellix Global Defenders: Follina — Microsoft Office Zero-Day CVE-2022-30190 By Taylor Mullins, Robin Noyce , Benjamin Marandel · June 3, 2022 Trellix is continuing to monitor the threat activity associated with the Microsoft Office Zero-Day vulnerability that has been dubbed “Follina.”...

Demystifying Myth Stealer: A Rust Based InfoStealer

Demystifying Myth Stealer: A Rust Based InfoStealer By Niranjan Hegde, Vasantha Lakshmanan Ambasankar and Adarsh S · June 5, 2025 Introduction During regular proactive threat hunting, the Trellix Advanced Research Center identified a fully undetected infostealer malware sample written in Rust. Up...

The Bug Report - February 2022 Edition

The Bug Report - February 2022 By Jesse Chick · March 2, 2022 Your Cybersecurity Comic Relief Image courtesy of https://toggl.com/ Why am I here? Welcome back to the Bug Report, stubby-month edition! For those in the audience unfamiliar with our shtick, every month we compile a shortlist of the t...

IoT Zero-Days – Is Belkin WeMo Smart Plug the Next Malware Target?

ARCHIVED STORY IoT Zero-Days – Is Belkin WeMo Smart Plug the Next Malware Target? By Steve Povolny · April 18, 2019 Effective malware is typically developed with intention, targeting specific victims using either known or unknown vulnerabilities to achieve its primary functions. In this blog, we...

The Bug Report - July 2023 Edition

The Bug Report – July 2023 Edition By Trellix · August 02, 2023 This story was also written by John Dunlap. A Storm is Brewing! Why am I here? Summer is now in full swing, and our July Bug Report is similarly coming out swinging. This month comes with a red-hot list of software vulnerabilities...

The Bug Report – October Edition

ARCHIVED STORY The Bug Report – October Edition By Douglas McKee · November 02, 2021 Your Cyber Security Comic Relief Figure 1. Apache server version 2.4.50 CVE-2021-42013 Why am I here? Regardless of the origins, you’ve arrived at Advanced Threat Research team’s monthly bug digest – an overview ...

Securing Space 4.0 – One Small Step or a Giant Leap? - Part 1

ARCHIVED STORY Securing Space 4.0 – One Small Step or a Giant Leap? - Part 1 By Eoin Carroll · September 30, 2020 McAfee Advanced Threat Research ATR is collaborating with Cork Institute of Technology CIT and its Blackrock Castle Observatory BCO and the National Space Center NSC in Cork, Ireland...

The LockBit’s Attempt to Stay Relevant, Its Imposters and New Opportunistic Ransomware Groups

The LockBit’s Attempt to Stay Relevant, Its Imposters and New Opportunistic Ransomware Groups By Jambul Tologonov and John Fokker · April 11, 2024 The Trellix Advanced Research Center has recently observed an uptick of LockBit-related cyber activity surrounding vulnerabilities in ScreenConnect...

The Bug Report October 2022 Edition

The Bug Report — October 2022 Edition By Trellix · November 2, 2022 This story was written by Richard Johnson. Do ROP exploits count as jmp scares? Why am I here? Welcome back to the Bug Report: Spooky Edition, and we’ve got bugs crawling out of the walls! Of all the months we do this, we’ve foun...

The Bug Report – November 2022 Edition

The Bug Report — November 2022 Edition By Trellix · December 07, 2022 This blog was written by Austin Emmitt Like granny always said, “never hack on an empty stomach.” Why am I here? This year I am thankful for some vivifying vulnerabilities and exceptional exploits! The world of enterprise...

CVE-2023-23397: The Notification Sound You Don’t Want to Hear

CVE-2023-23397: The Notification Sound You Don’t Want to Hear By Mark Bereza · March 17, 2023 This story was also written by John Dunlap. Overview During the March "Patch Tuesday" security update, a new Outlook security vulnerability was revealed as being exploited in the wild. This is a serious...

The Bug Report December 2022 Edition

The Bug Report — December 2022 Edition By Trellix · January 4, 2023 This story was also written by John Borrero Rodriguez Everyone gets it Why am I here? Ho Ho Ho! Welcome back to the Bug Report, or a more fitting name for this time of year: The NAUGHTY List! Yes, we checked it twice. It is no...

Silent Pivot: Detecting Fileless Lateral Movement via Service Manager with Trellix NDR

Silent Pivot: Detecting Fileless Lateral Movement via Service Manager with Trellix NDR By Maulik Maheta and Lishoy Mathew · September 8, 2025 Executive summary The tactics of cyber adversaries continue to evolve as they attempt to bypass security vendors. Rather than traditional malware, today’s...