Threat Roundup for March 15 to March 22

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between March 15 and March 22. 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...

The Fileless, Non-Malware Menace

There’s an old expression: if it looks like a duck, walks like a duck, and quacks like a duck, then it must be a duck. What happens, though, if the duck in question is malware that doesn’t behave like typical malware? Namely, it doesn’t drop a file on your disk to infect your computer, hijack...

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...

Carbon Black Global Threat Report: ‘The Year of the Next-Gen Cyberattack’

In 2016, fileless attacks such as PowerWare and the alleged hack against the Democratic National Committee DNC stole sensitive information and global headlines. In 2017, WannaCry, NotPetya and BadRabbit demonstrated ransomware’s global ubiquity. Then, as we kicked off 2018, the Spectre and Meltdo...

Top 5 Threat Hunting Myths: “Threat Hunting Is Just a Fad”

The cybersecurity landscape is in a constant state of change and, as many organizations have learned, it’s no longer a matter of if you’ll face a cyberattack, but when. In today’s world, attackers intentionally look normal to evade automated defenses. With the rise of ransomware, fileless and...

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...

Punk.Py - Unix SSH Post-Exploitation Tool

unixSSH post-exploitation 1337 tool how it works punk.py is a post-exploitation tool meant to help network pivoting from a compromised unix box. It collect usernames, ssh keys and known hosts from a unix system, then it tries to connect via ssh to all the combinations found. punk.py is wrote in...

Top 5 Threat Hunting Myths: “Threat Hunting Isn’t Worth My Time”

The cybersecurity landscape is in a constant state of change and, as many organizations have learned, it’s no longer a matter of if you’ll face a cyberattack, but when. In today’s world, attackers intentionally look normal to evade automated defenses. With the rise of ransomware, fileless and...

DarkVishnya: Banks attacked through direct connection to local network

While novice attackers, imitating the protagonists of the U.S. drama Mr. Robot, leave USB flash drives lying around parking lots in the hope that an employee from the target company picks one up and plugs it in at the workplace, more experienced cybercriminals prefer not to rely on chance. In...

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...

Building Better Evaluation Criteria for Linux Security

Carbon Black recently published a report on the challenges of securing Linux-based operating systems and how Carbon Black is redesigning the approach. For more information about how the Cb Predictive Security Cloud, Carbon Black's consolidated endpoint security platform, helps enterprises cut cos...

Exploit kits: fall 2018 review

Exploit kit EK activity continues to surprise us as the weather cools, the leaves change, and we move into the fall of 2018. Indeed, shortly after our summer review, a new exploit kit was discovered, and while no new vulnerabilities were added to the current EKs, several malvertising chains are...

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...

Out of sight but not invisible: Defeating fileless malware with behavior monitoring, AMSI, and next-gen AV

Consider this scenario: Two never-before-seen, heavily obfuscated scripts manage to slip past file-based detection and dynamically load an info-stealing payload into memory. The scripts are part of a social engineering campaign that tricks potential victims into running the scripts, which use the...

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...

ThreatList: Ransomware Attacks Down, Fileless Malware Up in 2018

The use of fileless malware in attacks continues to grow and now represents 42 out of 1,000 endpoint attacks, according to an analysis of 2018 data by one security firm. The uptick represents a 94 percent increase in the use of fileless-based attacks between January and June 2018. The study,...

Black Hat 2018: Stealthy Kernel Attack Flies Under Windows Mitigation Radar

There are lots of Holy Grails when it comes to compromising endpoints. One of them has long been an attack that leads to kernel ring0 access on a Windows system. That translates into so-called “God Mode” for hackers — and “game over” for victims. This is why Microsoft has gone to great lengths ov...