Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

October 2023

More Than Just a RAT: Unveiling NjRAT's MBR Wiping Capabilities

NjRAT (also known as Bladabindi) malware is a Remote Access Trojan (RAT) that was first discovered in 2012. This malware strain has persisted in the threat landscape up to the present day, most recently earning notoriety for its active campaigns against agencies and organizations located in the Middle East and North Africa. Upon successful infiltration into a target host or system, NjRAT can allow the attacker to remotely access and exercise control over the compromised system.

September Sees a 32% Increase in the Number of Ransomware Attacks in Just One Month

Continued analysis of ransomware attacks shows an upward trend in the number of attacks, with September resulting in the highest number of assaults so far this year. IT security vendor NCC Group’s Cyber Threat Intelligence Report for September 2023 shows some startling revelations about why ransomware attacks are spiking.

NoEscape Ransomware, AvosLocker Ransomware, Retch Ransomware, S-H-O Ransomware and More: Hacker's Playbook Threat Coverage Round-up: October 31st, 2023

In this version of the Hacker’s Playbook Threat Coverage round-up, we are highlighting newly added coverage for several recently discovered or analyzed ransomware and malware variants, including NoEscape ransomware, AvosLocker ransomware, and Retch ransomware, amongst others. SafeBreach customers can select and run these attacks and more from the SafeBreach Hacker’s Playbook™ to ensure coverage against these advanced threats.

Cloud Threats Memo: Multiple DarkGate Loader Campaigns Exploiting Legitimate Cloud Services

DarkGate Loader is a commodity malware loader with multiple features including the ability to download and execute files to memory, a Hidden Virtual Network Computing (HVNC) module, keylogging, information-stealing capabilities, and privilege escalation. Its distribution mechanism also makes use of legitimate AutoIt files to inject the malicious payload.

Phony Corsair job vacancy targets LinkedIn users with DarkGate malware

Job hunters should be on their guard. Researchers at security firm WithSecure have described how fake job opportunities are being posted on LinkedIn with the intent of spreading malware. A Vietnamese cybercrime gang is being blamed for a malware campaign that has seen bogus adverts posted on LinkedIn, pretending to be related to jobs at computer memory and gaming accessories firm Corsair.

Protecting Users from Malicious Sites with Falcon for Mobile

Today, mobile devices are ubiquitous within enterprise environments. But with their proliferation, it provides adversaries with yet another attack surface with which they can target users and cause a breach. From phishing attacks to malicious apps, mobile users tend to let their guard down and potentially click on obfuscated links to malicious sites. Falcon for Mobile protects users by preventing connections to malicious sites on both iOS and Android devices.

Netskope Threat Coverage: Menorah

In October 2023, Netskope analyzed a malicious Word document and the malware it contained, dubbed “Menorah.” The malware was attributed to an advanced persistent threat group APT34, and was reported to be distributed via spear-phishing. The malicious Office file uses dispersed and obfuscated VBA code to evade detection. The advanced persistent threat group targets users of outdated versions of Microsoft Office, since it does not attempt to bypass the mark of the web security check.

Radiology and Oncology Clinic, Akumin, Suffers Ransomware Attack

Akumin is a radiology and oncology clinic based in Florida with multiple locations. Last week, three of their South Florida locations shut down their computer systems to hobble a ransomware cyberattack. The downtime significantly impacted the three clinics, as the doctors could not complete patient assessments. Recent patients in the area should consider protective monitoring services to help mitigate potential outcomes from the attack.

Venom Control-RAT With a Sting

As the cybercrime industry continues to provide us with new Malware as a Service (MaaS) products, we have become used to seeing the operators advertising and developing the panels underground. An allegedly legitimate software company named Venom Control Software emerged, offering a Remote-Access-Tool (RAT) for “hackers and pen-testers”.

Malware Detection & Top Techniques Today

Every day, an average of 450,000 new malware are designed to wreak havoc on businesses, governments, and average citizens. Aside from the financial implications of malware, the reputational damage for companies and the psychological impact on victims (especially with ransomware) are enough to scare anyone at the thought of dealing with a malware attack. But it’s not all bad news! There is a way of protecting your devices and cyberspace with a proactive method.

CISA KEV's Known Ransomware Attribution

This past week, Patrick Garrity, Security Researcher at Nucleus, spent a lot of time exploring Cybersecurity and Infrastructure Security Agency's update the Known Exploited Vulnerabilities catalog, which now includes attribution to vulnerabilities associated with ransomware campaigns. In this short video, he explores this new addition and walks through the data visualizations he created to provide broader visibility into this new addition.
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Proactively Preventing Your Company from Becoming the Next Cyberattack Headline

The news last month of yet another cyberattack on MGM Resorts, initiating a system shutdown and disrupting its operations, is yet another in a very long list of attacks that we have witnessed in the past couple of years. Having the right preventive and defensive cybersecurity measures in place for such attacks is a given, and it is what most organisations focus on. But it is also about understanding how the organisation will recover from an incident and how they can limit the extent of an attack.

Achieve Complete Hybrid Cloud Cyber Resilience with Rubrik Cloud Vault

Rubrik and Microsoft have joined forces to help you build a cyber-resilient business. Reduce the risk of a backup data breach, loss, or theft by storing immutable copies of your data in a Rubrik-hosted cloud environment, isolated from your core workloads. Keywords: cybersecurity, data security, ransomware, malware, cyber resilience, zero trust, azure, Microsoft, Rubrik, disaster recovery, data protection, hybrid cloud.

CISA KEV Ransomware Interactive Visualization

When we first built the CISA KEV enrichment dashboard at Nucleus, our goal was to gain new insights into the vulnerabilities that had been confirmed by CISA as being exploited. Recently, CISA expanded the Known Exploited Vulnerabilities Catalog with vulnerabilities “known to be used in ransomware campaigns”. We find this data valuable in helping organizations identify which vulnerabilities on the KEV pose greater risk.

Challenge of Cybersecurity Insurance Amid Ransomware Attacks

The issue at hand is a direct result of the significant ransomware attacks that have forced organizations to pay out millions. In response, insurance companies have adopted a seemingly superficial, tick-box approach to cybersecurity assessments. Although they are attempting to enhance their due diligence, they fall short in truly evaluating security measures. Instead of thorough testing and on-site inspections, insurance companies rely on organizations to truthfully disclose their cybersecurity measures.

Top tips: Three ways to defend your critical IT infrastructure against ransomware

Top tips is a weekly column where we highlight what’s trending in the tech world today and list out ways to explore these trends. This week we’re looking at five ways you can protect your IT infrastructure against ransomware attacks. Every year, the month of October is observed as Cybersecurity Awareness Month. This year, we wanted to dedicate a special entry in our top tips column to one of the fastest-growing digital economies in the world: the Middle East.

"Human-Operated" Ransomware Attacks Double in the Last Year

As attackers leave little-to-no traces of their attack patterns, more ransomware groups are shifting from automated attacks to manual attacks. According to the newly-released Microsoft Digital Defense Report 2023, about 40% of the ransomware attacks detected were human-driven and tracked back to over 120 ransomware-as-a-service (RWaaS) affiliates. This spike in human-operated ransomware attacks likely goes back to attackers wanting to minimize their footprint within an organization.

Rubrik Invests in MSP offering to Accelerate MSPs with Cyber Resilience-as-a-service

Business leaders today must ask themselves a challenging question: “Who do I trust to face cybersecurity problems head on and consistently stay ahead of attacker trends?” Consider the following challenges of IT: As more and more businesses are turning to Managed Service Providers (MSPs), those MSPs must face the cybersecurity problems head on everyday and stay ahead of modern threats in order to defend themselves and their customers.

GhostLocker: The New Ransomware On The Block

Over the past week, an establishment of a new ransomware franchise has emerged named GhostLocker. Ghost Locker is a new Ransomware-as-a-Service (Raas) established by several hacktivist groups led by GhostSec. Recently, many hacktivist groups have tried to engage in cybercrime activities in order to sustain themselves and GhostLocker seems to be one of these cases. In fact, some ransomware groups have already migrated to using GhostLocker instead of their original products.

Ransomware Attack Dwell Time Drops by 77% to Under 24 Hours

As attackers evolve their toolsets and processes, the significant drop in dwell time signifies a much higher risk to organizations that now have less time to detect and respond to initial attacks. This is bad news. Two years ago, the median dwell time – the time between gaining access to a network and executing the ransomware – was 5.5 days. Last year it was 4.5 days.

Microsoft Teams Used as Initial Access for DARKGATE Malware

Kroll has observed an uptick in cases of DARKGATE malware being delivered through Microsoft Teams messages. These campaigns have mainly targeted organizations in the transportation and hospitality sectors. This activity has also been reported throughout open-source reporting, sharing a number of key indicators with Kroll observations, such as common filenames, adversary infrastructure and similar domain name conventions to host the initial download.

What is Qakbot Malware?

Understanding Qakbot Malware Qakbot is a sophisticated banking Trojan that first emerged around 2007 and has continued to evolve over the years. Its primary goal is to steal sensitive financial information, including banking credentials and personal data, from infected systems. Once it infiltrates a system, it can also serve as a delivery mechanism for other malicious payloads, making it a potent tool for cybercriminals.

DarkGate Loader Delivered via Microsoft Teams - How It Works, How to Mitigate It and How Forescout Can Help

The threat intelligence data that Forescout Research – Vedere Labs curates comes from the millions of connected devices that we monitor, attacks we observe and dissect in our sandboxes, data relating to attacks that is traded on the Darknet, and from our Adversary Engagement Environment. We see a lot of data. One thing no cybersecurity researcher wants to see, however, is an attack on their own organization.

Our New Ransomware Defence Assessment

The Ransomware Defence Assessment (RDA) service offers a comprehensive approach to bolster your organisation against ransomware threats. Our method, leveraging the CIS framework, combines asset identification, vulnerability scanning, policy review, training, and continuous improvement to ensure a holistic defence strategy.

Ransomware Trends 2023, Q3 Report

Q3 will be remembered as a new record for the ransomware industry as it was the most successful quarter ever recorded. While the number skyrocketed in Q2 with 1386 cases, in Q3, the ransomware industry was able to surpass this number with 1420 cases. With no surprise, the U.S. continues to be the most targeted country by ransomware, while the business services sector is the most targeted sector.

Rhadamanthys malware analysis: How infostealers use VMs to avoid analysis

The infostealer malware Rhadamanthys was discovered in the last quarter of 2022. Its capabilities showed a special interest in crypto currency wallets, targeting both wallet clients installed in the victim’s machine and browser extensions. The main distribution methods observed for this threat are fake software websites promoted through Google Ads, and phishing emails, without discriminating by region or vertical.

Finding and Analyzing Ransomware Groups in 2023: A Guide

You don’t need to be an expert in cybersecurity to know that ransomware, which gets plenty of coverage in the media, is a threat – and one that’s getting worse. Cyberint’s research shows that Q2 2023 alone saw 1386 new ransomware cases, a 67 percent increase in ransomware victims compared to the preceding quarter. This number was surpassed in Q3 with a whopping 1420 cases. Finding and analyzing ransomware groups is a central part of the Cyberint research team’s focus.

What is a Remote Access Trojan (RAT)?

A Remote Access Trojan (RAT) is a type of malware that enables an attacker to gain remote access over an infected system. Once a machine is compromised by a Remote Access Trojan, your system is at high risk of covert surveillance, data exfiltration, and other methods of malicious remote compromise. This article defines what a Remote Access Trojan (RAT) is and how you can take action to protect your system with UpGuard BreachSight.