A week in security (November 25 – December 1)

Last week on Malwarebytes Labs, we discussed why the notion of "data as property" may potentially hurt more than help, homed in on sextortion scammers getting more creative, and explored the possible security risks Americans might face if the US changed to universal healthcare coverage. Other...

Hunting for LoLBins

By Vanja Svajcer. Introduction Attackers' trends tend to come and go. But one popular technique we're seeing at this time is the use of living-off-the-land binaries — or "LoLBins". LoLBins are used by different actors combined with fileless malware and legitimate cloud services to improve chances...

Thousands of Windows PCs infected by Nodersok/Divergent fileless malware

By Sudais A new fileless malware is on the rise which converts computers into bots that can be controlled by hackers remotely. This is a post from HackRead.com Read the original post: Thousands of Windows PCs infected by Nodersok/Divergent fileless malware...

Microsoft Warns of a New Rare Fileless Malware Hijacking Windows Computers

Watch out Windows users! There's a new strain of malware making rounds on the Internet that has already infected thousands of computers worldwide and most likely, your antivirus program would not be able to detect it. Why? That's because, first, it's an advanced fileless malware and second, it...

Microsoft Warns of a New Rare Fileless Malware Hijacking Windows Computers

Watch out Windows users! There's a new strain of malware making rounds on the Internet that has already infected thousands of computers worldwide and most likely, your antivirus program would not be able to detect it. Why? That's because, first, it's an advanced fileless malware and second, it...

This Week in Security News: IoT Devices Are a Target in Cybercriminal Underground

Welcome to our weekly roundup, where we share what you need to know about the cybersecurity news and events that happened over the past few days. This week, learn how fileless malware abuses PowerShell. Also, read how Trend Micro researchers are pulling back the curtain on the cybercriminal...

Threat Roundup for July 26 to Aug. 2

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between July 26 and Aug. 2. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral characteristics,...

Popular Malware Families Using 'Process Doppelgänging' to Evade Detection

The fileless code injection technique called Process Doppelgänging is actively being used by not just one or two but a large number of malware families in the wild, a new report shared with The Hacker News revealed. Discovered in late 2017, Process Doppelgänging is a fileless variation of Process...

Canadian Centre for Cyber Security Releases Advisory on Fileless Malware

The Canadian Centre for Cyber Security CCCS has released an advisory on an Astaroth fileless malware campaign affecting Microsoft Windows. Astaroth resides solely in memory, and an attacker can use it and other fileless malware to steal information, such as credentials and keystrokes, and obtain...

Watch Out! Microsoft Spotted Spike in Astaroth Fileless Malware Attacks

Security researchers at Microsoft have released details of a new widespread campaign distributing an infamous piece of fileless malware that was primarily being found targeting European and Brazilian users earlier this year. Dubbed Astaroth , the malware trojan has been making the rounds since at...

Flerken - Obfuscated Command Detection Tool

Command line obfuscation has been proved to be a non-negligible factor in fileless malware or malicious actors that are "living off the land". To bypass signature-based detection, dedicated obfuscation techniques are shown to be used by red-team penetrations and even APT activities. Meanwhile,...

fireELF - Fileless Linux Malware Framework

fireELF is a opensource fileless linux malware framework thats crossplatform and allows users to easily create and manage payloads. By default is comes with 'memfdcreate' which is a new way to run linux elf executables completely from memory, without having the binary touch the harddrive. Feature...

GandCrab ransomware and Ursnif virus spreading via MS Word macros

Security researchers have discovered two separate malware campaigns, one of which is distributing the Ursnif data-stealing trojan and the GandCrab ransomware in the wild, whereas the second one is only infecting victims with Ursnif malware. Though both malware campaigns appear to be a work of two...

GandCrab ransomware and Ursnif virus spreading via MS Word macros

Security researchers have discovered two separate malware campaigns, one of which is distributing the Ursnif data-stealing trojan and the GandCrab ransomware in the wild, whereas the second one is only infecting victims with Ursnif malware. Though both malware campaigns appear to be a work of two...

2019 Malware Trends to Watch

Malware authors continue to innovate, find new infection vectors and better obfuscate their wares. Heading into 2019, you can bet that cybercriminals will do everything in their power to become even more effective and virulent. Here are 10 top malware trends to watch for in the New Year. Wipers...

New ‘Under the Radar’ report examines modern threats and future technologies

As if you haven't heard it enough from us, the threat landscape is changing. It's always changing, and usually not for the better. The new malware we see being developed and deployed in the wild have features and techniques that allow them to go beyond what they were originally able to do, either...

Fileless malware: part deux

In part one of this series, we focused on an introduction to the concepts fileless malware, providing examples of the problems that we in the security industry face when dealing with these types of attacks. In part two, I will be walking through a few demonstrations of fileless malware attacks th...

Partner Perspectives: Protecting Against Fileless Malware with BluVector and Carbon Black

Josh Rosenthol is the Alliance and Integration Manager for BluVector. The Challenge of Fileless Malware “The infectiousness of crime is like that of the plague.” -Napoleon Bonaparte While first spoken over 200 years ago, this quote is remarkably relevant to the modus operandi of malware authors a...

September 4, 2018 – Morning Cyber Coffee Headlines – “September” Edition

Good morning! Sit with Carbon Black this morning over a cup of coffee or tea and browse a few industry headlines to get the day started. We’ve got just enough information below to get you through that first cup…enjoy! September 4, 2018 - Headlines Carbon Black in the News: Carbon Black builds out...

Fileless malware: getting the lowdown on this insidious threat

Traditionally, malware attacks as we have always known them are files written to disk in one form or another that require execution in order to carry out their malicious scope. Fileless malware, on the other hand, is intended to be memory resident only, ideally leaving no trace after its executio...