RomCom RAT Using Deceptive Web of Rogue Software Sites for Covert Attacks

The threat actors behind RomCom RAT are leveraging a network of fake websites advertising rogue versions of popular software at least since July 2022 to infiltrate targets. Cybersecurity firm Trend Micro is tracking the activity cluster under the name Void Rabisu, which is also known as Tropical Scorpius (Unit 42) and UNC2596 (Mandiant). "These lure sites are most likely only meant for a small

CAPTCHA-Breaking Services with Human Solvers Helping Cybercriminals Defeat Security

Cybersecurity researchers are warning about CAPTCHA-breaking services that are being offered for sale to bypass systems designed to distinguish legitimate users from bot traffic. "Because cybercriminals are keen on breaking CAPTCHAs accurately, several services that are primarily geared toward this market demand have been created," Trend Micro said in a report published last week. "These

Buhti Ransomware Gang Switches Tactics, Utilizes Leaked LockBit and Babuk Code

The threat actors behind the nascent Buhti ransomware have eschewed their custom payload in favor of leaked LockBit and Babuk ransomware families to strike Windows and Linux systems. "While the group doesn't develop its own ransomware, it does utilize what appears to be one custom-developed tool, an information stealer designed to search for and archive specified file types," Symantec said in a

Twitter Finally Rolling Out Encrypted Direct Messages — Starting with Verified Users

Twitter is officially beginning to roll out support for encrypted direct messages (DMs) on the platform, more than five months after its chief executive Elon Musk confirmed plans for the feature in November 2022. The "Phase 1" of the initiative will appear as separate conversations alongside existing direct messages on users' inboxes. Encrypted chats carry a lock icon badge to visually

Sophisticated DownEx Malware Campaign Targeting Central Asian Governments

Government organizations in Central Asia are the target of a sophisticated espionage campaign that leverages a previously undocumented strain of malware dubbed DownEx. Bitdefender, in a report shared with The Hacker News, said the activity remains active, with evidence likely pointing to the involvement of Russia-based threat actors. The Romanian cybersecurity firm said it first detected the

New Ransomware Strain 'CACTUS' Exploits VPN Flaws to Infiltrate Networks

Cybersecurity researchers have shed light on a new ransomware strain called CACTUS that has been found to leverage known flaws in VPN appliances to obtain initial access to targeted networks. "Once inside the network, CACTUS actors attempt to enumerate local and network user accounts in addition to reachable endpoints before creating new user accounts and leveraging custom scripts to automate

Chinese Hacker Group Earth Longzhi Resurfaces with Advanced Malware Tactics

A Chinese state-sponsored hacking outfit has resurfaced with a new campaign targeting government, healthcare, technology, and manufacturing entities based in Taiwan, Thailand, the Philippines, and Fiji after more than six months of no activity. Trend Micro attributed the intrusion set to a cyber espionage group it tracks under the name Earth Longzhi, which is a subgroup within APT41 (aka HOODOO

Why Your Detection-First Security Approach Isn't Working

Stopping new and evasive threats is one of the greatest challenges in cybersecurity. This is among the biggest reasons why attacks increased dramatically in the past year yet again, despite the estimated $172 billion spent on global cybersecurity in 2022. Armed with cloud-based tools and backed by sophisticated affiliate networks, threat actors can develop new and evasive malware more quickly

Ransomware Hackers Using AuKill Tool to Disable EDR Software Using BYOVD Attack

Threat actors are employing a previously undocumented "defense evasion tool" dubbed AuKill that's designed to disable endpoint detection and response (EDR) software by means of a Bring Your Own Vulnerable Driver (BYOVD) attack. "The AuKill tool abuses an outdated version of the driver used by version 16.32 of the Microsoft utility, Process Explorer, to disable EDR processes before deploying

Protecting your business with Wazuh: The open source security platform

Today, businesses face a variety of security challenges like cyber attacks, compliance requirements, and endpoint security administration. The threat landscape constantly evolves, and it can be overwhelming for businesses to keep up with the latest security trends. Security teams use processes and security solutions to curb these challenges. These solutions include firewalls, antiviruses, data

"It's The Service Accounts, Stupid": Why Do PAM Deployments Take (almost) Forever To Complete?

Privileged Access Management (PAM) solutions are regarded as the common practice to prevent identity threats to administrative accounts. In theory, the PAM concept makes absolute sense: place admin credentials in a vault, rotate their passwords, and closely monitor their sessions. However, the harsh reality is that the vast majority of PAM projects either become a years-long project, or even

Crypto-Stealing OpcJacker Malware Targets Users with Fake VPN Service

A piece of new information-stealing malware called OpcJacker has been spotted in the wild since the second half of 2022 as part of a malvertising campaign. "OpcJacker's main functions include keylogging, taking screenshots, stealing sensitive data from browsers, loading additional modules, and replacing cryptocurrency addresses in the clipboard for hijacking purposes," Trend Micro researchers

IcedID Malware Shifts Focus from Banking Fraud to Ransomware Delivery

Multiple threat actors have been observed using two new variants of the IcedID malware in the wild with more limited functionality that removes functionality related to online banking fraud. IcedID, also known as BokBot, started off as a banking trojan in 2017. It's also capable of delivering additional malware, including ransomware. "The well-known IcedID version consists of an initial loader

Syxsense Platform: Unified Security and Endpoint Management

As threats grow and attack surfaces get more complex, companies continue to struggle with the multitude of tools they utilize to handle endpoint security and management. This can leave gaps in an enterprise's ability to identify devices that are accessing the network and in ensuring that those devices are compliant with security policies. These gaps are often seen in outdated spreadsheets that

Post-Macro World Sees Rise in Microsoft OneNote Documents Delivering Malware

In a continuing sign that threat actors are adapting well to a post-macro world, it has emerged that the use of Microsoft OneNote documents to deliver malware via phishing attacks is on the rise. Some of the notable malware families that are being distributed using this method include AsyncRAT, RedLine Stealer, Agent Tesla, DOUBLEBACK, Quasar RAT, XWorm, Qakbot, BATLOADER, and FormBook.

Facebook Introduces New Features for End-to-End Encrypted Messenger App

Meta Platforms on Monday announced that it has started to expand global testing of end-to-end encryption (E2EE) in Messenger chats by default. "Over the next few months, more people will continue to see some of their chats gradually being upgraded with an extra layer of protection provided by end-to-end encryption," Meta's Melissa Miranda said. The social media behemoth said it intends to notify

Hackers Can Abuse Legitimate GitHub Codespaces Feature to Deliver Malware

New research has found that it is possible for threat actors to abuse a legitimate feature in GitHub Codespaces to deliver malware to victim systems. GitHub Codespaces is a cloud-based configurable development environment that allows users to debug, maintain, and commit changes to a given codebase from a web browser or via an integration in Visual Studio Code. It also comes with a port

Expert Analysis Reveals Cryptographic Weaknesses in Threema Messaging App

A comprehensive analysis of the cryptographic protocols used in the Swiss encrypted messaging application Threema has revealed a number of loopholes that could be exploited to break authentication protections and even recover users' private keys. The seven attacks span three different threat models, according to ETH Zurich researchers Kenneth G. Paterson, Matteo Scarlata, and Kien Tuong Truong,

PyTorch Machine Learning Framework Compromised with Malicious Dependency

The maintainers of the PyTorch package have warned users who have installed the nightly builds of the library between December 25, 2022, and December 30, 2022, to uninstall and download the latest versions following a dependency confusion attack. "PyTorch-nightly Linux packages installed via pip during that time installed a dependency, torchtriton, which was compromised on the Python Package

Raspberry Robin Worm Strikes Again, Targeting Telecom and Government Systems

The Raspberry Robin worm has been used in attacks against telecommunications and government office systems across Latin America, Australia, and Europe since at least September 2022. "The main payload itself is packed with more than 10 layers for obfuscation and is capable of delivering a fake payload once it detects sandboxing and security analytics tools," Trend Micro researcher Christopher So 

A Guide to Efficient Patch Management with Action1

It's no secret that keeping software up to date is one of the key best practices in cybersecurity. Software vulnerabilities are being discovered almost weekly these days. The longer it takes IT teams to apply updates issued by developers to patch these security flaws, the more time attackers have to exploit the underlying vulnerability. Once threat actors gain access to corporate IT ecosystems,

Google Takes Gmail Security to the Next Level with Client-Side Encryption

Google on Friday announced that its client-side encryption for Gmail is in beta for Workspace and education customers as part of its efforts to secure emails sent using the web version of the platform. The development comes at a time when concerns about online privacy and data security are at an all-time high, making it a welcome change for users who value the protection of their personal data.

Researchers Demonstrate How EDR and Antivirus Can Be Weaponized Against Users

High-severity security vulnerabilities have been disclosed in different endpoint detection and response (EDR) and antivirus (AV) products that could be exploited to turn them into data wipers. "This wiper runs with the permissions of an unprivileged user yet has the ability to wipe almost any file on a system, including system files, and make a computer completely unbootable," SafeBreach Labs

Apple Boosts Security With New iMessage, Apple ID, and iCloud Protections

Apple on Wednesday announced a raft of security measures, including an Advanced Data Protection setting that enables end-to-end encrypted (E2EE) data backups in its iCloud service. The headlining feature, when turned on, is expected to secure 23 data categories using E2EE, including device and message backups, iCloud Drive, Notes, Photos, Reminders, Voice Memos, Safari Bookmarks, Siri Shortcuts,

Best Year-End Cybersecurity Deals from Uptycs, SANS Institute, and Bitdefender

Looking to up your cybersecurity game in the new year? Do not just buy electronics this vacation season, improve your cybersecurity! The end of the year is a great time to re-evaluate your cybersecurity strategy and make some important investments in protecting your personal and professional data. Cyber threats are constantly evolving and becoming more sophisticated, so it's important to stay on

The Value of Old Systems

Old technology solutions – every organization has a few of them tucked away somewhere.  It could be an old and unsupported storage system or a tape library holding the still-functional backups from over 10 years ago.  This is a common scenario with software too. For example, consider an accounting software suite that was extremely expensive when it was purchased. If the vendor eventually went

Elon Musk Confirms Twitter 2.0 will Bring End-to-End Encryption to Direct Messages

Twitter chief executive Elon Musk confirmed plans for end-to-end encryption (E2EE) for direct messages on the platform. The feature is part of Musk's vision for Twitter 2.0, which is expected to be what's called an "everything app." Other functionalities include longform tweets and payments, according to a slide deck shared by Musk over the weekend. <!--adsense--> The company's plans for

Black Basta Ransomware Gang Actively Infiltrating U.S. Companies with Qakbot Malware

Companies based in the U.S. have been at the receiving end of an "aggressive" Qakbot malware campaign that leads to Black Basta ransomware infections on compromised networks. "In this latest campaign, the Black Basta ransomware gang is using QakBot malware to create an initial point of entry and move laterally within an organization's network," Cybereason researchers Joakim Kandefelt and

Researchers Reported Critical SQLi and Access Flaws in Zendesk Analytics Service

Cybersecurity researchers have disclosed details of now-patched flaws in Zendesk Explore that could have been exploited by an attacker to gain unauthorized access to information from customer accounts that have the feature turned on. "Before it was patched, the flaw would have allowed threat actors to access conversations, email addresses, tickets, comments, and other information from Zendesk

Warning: New Massive Malicious Campaigns Targeting Top Indian Banks' Customers

Cybersecurity researchers are warning of "massive phishing campaigns" that distribute five different malware targeting banking users in India. "The bank customers targeted include account subscribers of seven banks, including some of the most well-known banks located in the country and potentially affecting millions of customers," Trend Micro said in a report published this week. Some of the

Black Basta Ransomware Hackers Infiltrate Networks via Qakbot to Deploy Brute Ratel C4

The threat actors behind the Black Basta ransomware family have been observed using the Qakbot trojan to deploy the Brute Ratel C4 framework as a second-stage payload in recent attacks. The development marks the first time the nascent adversary simulation software is being delivered via a Qakbot infection, cybersecurity firm Trend Micro said in a technical analysis released last week. The

Why Organisations Need Both EDR and NDR for Complete Network Protection

Endpoint devices like desktops, laptops, and mobile phones enable users to connect to enterprise networks and use their resources for their day-to-day work. However, they also expand the attack surface and make the organisation vulnerable to malicious cyberattacks and data breaches. Why Modern Organisations Need EDR According to the 2020 global risk report by Ponemon Institute, smartphones,

Hackers Targeting Unpatched Atlassian Confluence Servers to Deploy Crypto Miners

A now-patched critical security flaw affecting Atlassian Confluence Server that came to light a few months ago is being actively exploited for illicit cryptocurrency mining on unpatched installations. "If left unremedied and successfully exploited, this vulnerability could be used for multiple and more malicious attacks, such as a complete domain takeover of the infrastructure and the deployment

4 Key Takeaways from "XDR is the Perfect Solution for SMEs" webinar

Cyberattacks on large organizations dominate news headlines. So, you may be surprised to learn that small and medium enterprises (SMEs) are actually more frequent targets of cyberattacks. Many SMEs understand this risk firsthand.  In a recent survey, 58% of CISOs of SMEs said that their risk of attack was higher compared to enterprises. Yet, they don't have the same resources as enterprises –

Ransomware Attackers Abuse Genshin Impact Anti-Cheat System to Disable Antivirus

A vulnerable anti-cheat driver for the Genshin Impact video game has been leveraged by a cybercrime actor to disable antivirus programs to facilitate the deployment of ransomware, according to findings from Trend Micro. The ransomware infection, which was triggered in the last week of July 2022, banked on the fact that the driver in question ("mhyprot2.sys") is signed with a valid certificate,

Microsoft Discover Severe ‘One-Click’ Exploit for TikTok Android App

Microsoft on Wednesday disclosed details of a now-patched "high severity vulnerability" in the TikTok app for Android that could let attackers take over accounts when victims clicked on a malicious link. "Attackers could have leveraged the vulnerability to hijack an account without users' awareness if a targeted user simply clicked a specially crafted link," Dimitrios Valsamaras of the Microsoft

Nearly 1,900 Signal Messenger Accounts Potentially Compromised in Twilio Hack

Popular end-to-end encrypted messaging service Signal on Monday disclosed the cyberattack aimed at Twilio earlier this month may have exposed the phone numbers of roughly 1,900 users. "For about 1,900 users, an attacker could have attempted to re-register their number to another device or learned that their number was registered to Signal," the company said. "All users can rest assured that

Chinese Hackers Backdoored MiMi Chat App to Target Windows, Linux, macOS Users

A pair of reports from cybersecurity firms SEKOIA and Trend Micro sheds light on a new campaign undertaken by a Chinese threat actor named Lucky Mouse that involves leveraging a trojanized version of a cross-platform messaging app to backdoor systems. Infection chains leverage a chat application called MiMi, with its installer files compromised to download and install HyperBro samples for the

Facebook Testing Default End-to-End Encryption and Encrypted Backups in Messenger

Social media company Meta said it will begin testing end-to-end encryption (E2EE) on its Messenger platform this week for select users as the default option, as the company continues to slowly add security layers to its various chat services. "If you're in the test group, some of your most frequent chats may be automatically end-to-end encrypted, which means you won't have to opt in to the

GitHub Dependabot Now Alerts Developers On Vulnerable GitHub Actions

Cloud-based code hosting platform GitHub has announced that it will now start sending Dependabot alerts for vulnerable GitHub Actions to help developers fix security issues in CI/CD workflows. "When a security vulnerability is reported in an action, our team of security researchers will create an advisory to document the vulnerability, which will trigger an alert to impacted repositories,"

LockBit Ransomware Abuses Windows Defender to Deploy Cobalt Strike Payload

A threat actor associated with the LockBit 3.0 ransomware-as-a-service (RaaS) operation has been observed abusing the Windows Defender command-line tool to decrypt and load Cobalt Strike payloads.  According to a report published by SentinelOne last week, the incident occurred after obtaining initial access via the Log4Shell vulnerability against an unpatched VMware Horizon Server. "Once initial

Gootkit Loader Resurfaces with Updated Tactic to Compromise Targeted Computers

The operators of the Gootkit access-as-a-service (AaaS) malware have resurfaced with updated techniques to compromise unsuspecting victims. "In the past, Gootkit used freeware installers to mask malicious files; now it uses legal documents to trick users into downloading these files," Trend Micro researchers Buddy Tancio and Jed Valderama said in a write-up last week. <!--adsense--> The findings

Malicious IIS Extensions Gaining Popularity Among Cyber Criminals for Persistent Access

Threat actors are increasingly abusing Internet Information Services (IIS) extensions to backdoor servers as a means of establishing a "durable persistence mechanism." That's according to a new warning from the Microsoft 365 Defender Research Team, which said that "IIS backdoors are also harder to detect since they mostly reside in the same directories as legitimate modules used by target