An April 2023 study from Kent State University found that remote workers are more likely to be vigilant of security threats and take actions to ward them off than their in-office counterparts. This article has been indexed from Cisco Talos…
Tag: Cisco Talos Blog
CoralRaider targets victims’ data and social media accounts
Cisco Talos discovered a new threat actor we’re calling “CoralRaider” that we believe is of Vietnamese origin and financially motivated. CoralRaider has been operating since at least 2023, targeting victims in several Asian and Southeast Asian countries. This article has…
Adversaries are leveraging remote access tools now more than ever — here’s how to stop them
While there are many legitimate uses for this software, adversaries are also finding ways to use them for command and control in their campaigns. This article has been indexed from Cisco Talos Blog Read the original article: Adversaries are leveraging…
Enter the substitute teacher
Welcome to this week’s threat source newsletter with Jon out, you’ve got me as your substitute teacher. I’m taking you back to those halcyon days of youth and that moment when you found out that you had a sub that…
“Pig butchering” is an evolution of a social engineering tactic we’ve seen for years
In the case of pig butchering scams, it’s not really anything that can be solved by a cybersecurity solution or sold in a package. This article has been indexed from Cisco Talos Blog Read the original article: “Pig butchering” is…
New details on TinyTurla’s post-compromise activity reveal full kill chain
We now have new information on the entire kill chain this actor uses, including the tactics, techniques and procedures (TTPs) utilized to steal valuable information from their victims and propagate through their infected enterprises. This article has been indexed from…
Netgear wireless router open to code execution after buffer overflow vulnerability
There is also a newly disclosed vulnerability in a graphics driver for some NVIDIA GPUs that could lead to a memory leak. This article has been indexed from Cisco Talos Blog Read the original article: Netgear wireless router open to…
Dissecting a complex vulnerability and achieving arbitrary code execution in Ichitaro Word
Research conducted by Cisco Talos last year has uncovered multiple vulnerabilities that were rated as low-severity despite their ability to allow for full arbitrary code execution. This article examines the exploitation process step-by-step. This article has been indexed from Cisco…
The LockBit story: Why the ransomware affiliate model can turn takedowns into disruptions
Talos explores the recent law enforcement takedown of LockBit, a prolific ransomware group that claimed to resume their operations 7 days later. This article has been indexed from Cisco Talos Blog Read the original article: The LockBit story: Why the ransomware…
Not everything has to be a massive, global cyber attack
There are a few reasons why we’re so ready to jump to the “it’s a cyber attack!” This article has been indexed from Cisco Talos Blog Read the original article: Not everything has to be a massive, global cyber attack
Threat actors leverage document publishing sites for ongoing credential and session token theft
Talos IR has responded to several recent incidents in which threat actors used legitimate digital document publishing sites such as Publuu and Marq to host phishing documents as part of ongoing credential and session harvesting attacks. This article has been…
Another Patch Tuesday with no zero-days, only two critical vulnerabilities disclosed by Microsoft
March’s Patch Tuesday is relatively light, containing 60 vulnerabilities — only two labeled “critical.” This article has been indexed from Cisco Talos Blog Read the original article: Another Patch Tuesday with no zero-days, only two critical vulnerabilities disclosed by Microsoft
You’re going to start seeing more tax-related spam, but remember, that doesn’t actually mean there’s more spam
It’s important to be vigilant about tax-related scams any time these deadlines roll around, regardless of what country you’re in, but it’s not like you need to be particularly more skeptical in March and April. This article has been indexed…
The 3 most common post-compromise tactics on network infrastructure
We discuss three of the most common post-compromise tactics that Talos has observed in our threat telemetry and Cisco Talos Incident Response (Talos IR) engagements. These include modifying the device’s firmware, uploading customized/weaponized firmware, and bypassing security measures. This article…
Badgerboard: A PLC backplane network visibility module
Analysis of the traffic between networked devices has always been of interest since devices could even communicate with one another. As the complexity of networks grew, the more useful dedicated traffic analysis tools became. Major advancements have been made over…
GhostSec’s joint ransomware operation and evolution of their arsenal
Cisco Talos observed a surge in GhostSec, a hacking group’s malicious activities since this past year. GhostSec has evolved with a new GhostLocker 2.0 ransomware, a Golang variant of the GhostLocker ransomware. This article has been indexed from Cisco Talos…
Heather Couk is here to keep your spirits up during a cyber emergency, even if it takes the “Rocky” music
. The bulk of her career was with a manufacturing company working as a security and email administrator, but she uses her criminal justice degree daily now with Talos IR helping to track down bad actors or helping customers understand…
Why Apple added protection against quantum computing when quantum computing doesn’t even exist yet
Apple’s newest encryption technology, called PQ3, now secures iMessages with end-to-end encryption that is quantum-resistant. This article has been indexed from Cisco Talos Blog Read the original article: Why Apple added protection against quantum computing when quantum computing doesn’t even…
Multiple vulnerabilities in Adobe Acrobat Reader could lead to remote code execution
Other potential code execution vulnerabilities are also present in Weston Embedded µC/HTTP-server, a web server component in Weston Embedded’s in-house operating system and an open-source library that processes several types of potentially sensitive medical tests. This article has been indexed…
Stop running security in passive mode
As we begin a new year, we wanted to address one of the biggest issues we consistently see in our investigations: passive security. Incident response engagements are an important part of our work and the intelligence-gathering process and their associated…