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Threat actors are actively weaponizing unpatched servers affected by the newly identified " Log4Shell " vulnerability in Log4j to install cryptocurrency miners, Cobalt Strike, and recruit the devices into a botnet, even as telemetry signs point to exploitation of the flaw nine days before it even came to light. Netlab, the networking security division of Chinese tech giant Qihoo 360,  disclosed  threats such as  Mirai  and  Muhstik  (aka Tsunami) are setting their sights on vulnerable systems to spread the infection and grow its computing power to orchestrate distributed denial-of-service (DDoS) attacks with the goal of overwhelming a target and rendering it unusable. Muhstik was previously spotted exploiting a critical security flaw in Atlassian Confluence ( CVE-2021-26084 , CVSS score: 9.8) earlier this September. The latest development comes as it has emerged that the vulnerability has been under attack for at least more than a week prior to its public disclosure on D

Details have emerged about what's the first Rust-language-based ransomware strain spotted in the wild that has already amassed "some victims from different countries" since its launch last month. The ransomware, dubbed  BlackCat , was  disclosed  by MalwareHunterTeam. "Victims can pay with Bitcoin or Monero," the researchers said in a series of tweets detailing the file-encrypting malware. "Also looks they are giving credentials to intermediaries" for negotiations. BlackCat, akin to many other variants that have sprung before it, operates as a ransomware-as-a-service (RaaS), wherein the core developers recruit affiliates to breach corporate environments and encrypt files, but not before stealing the said documents in a double extortion scheme to pressure the targets into paying the requested amount or risk exposure of the stolen data should the companies refuse to pay up. Security researcher Michael Gillespie  called  it a "very sophisticated

The  ransomware industry surged in 2023  as it saw an alarming 55.5% increase in victims worldwide, reaching a staggering 5,070.  But 2024 is starting off showing a very different picture.  While the numbers skyrocketed in Q4 2023 with 1309 cases, in Q1 2024, the ransomware industry was down to 1,048 cases. This is a 22% decrease in ransomware attacks compared to Q4 2023. Figure 1: Victims per quarter There could be several reasons for this significant drop.  Reason 1: The Law Enforcement Intervention Firstly, law enforcement has upped the ante in 2024 with actions against both LockBit and ALPHV. The LockBit Arrests In February, an international operation named "Operation Cronos" culminated in the arrest of at least three associates of the infamous LockBit ransomware syndicate in Poland and Ukraine.  Law enforcement from multiple countries collaborated to take down LockBit's infrastructure. This included seizing their dark web domains and gaining access to their backend sys

At least 300,000 IP addresses associated with MikroTik devices have been found vulnerable to multiple remotely exploitable security vulnerabilities that have since been patched by the popular supplier of routers and wireless ISP devices. The most affected devices are located in China, Brazil, Russia, Italy, Indonesia, with the U.S. coming in at number eight, cybersecurity firm Eclypsium said in a report shared with The Hacker News. "These devices are both powerful, [and] often highly vulnerable," the researchers  noted . "This has made MikroTik devices a favorite among threat actors who have commandeered the devices for everything from DDoS attacks, command-and-control (aka 'C2'), traffic tunneling, and more." MikroTik devices are an enticing target not least because there are more than two million of them deployed worldwide, posing a huge attack surface that can be leveraged by threat actors to mount an array of intrusions. Indeed, earlier this Septem

At least 17 malware-laced packages have been discovered on the NPM package Registry, adding to a  recent barrage of malicious software  hosted and delivered through open-source software repositories such as PyPi and RubyGems. DevOps firm JFrog said the libraries, now taken down, were designed to grab Discord access tokens and  environment variables  from users' computers as well as gain full control over a victim's system. "The packages' payloads are varied, ranging from infostealers up to full remote access backdoors," researchers Andrey Polkovnychenko and Shachar Menashe said in a  report  published Wednesday. "Additionally, the packages have different infection tactics, including typosquatting,  dependency confusion  and trojan functionality." The list of packages is below - prerequests-xcode (version 1.0.4) discord-selfbot-v14 (version 12.0.3) discord-lofy (version 11.5.1) discordsystem (version 11.5.1) discord-vilao (version 1.0.0) fix-e

Google on Tuesday said it took steps to disrupt the operations of a sophisticated "multi-component" botnet called Glupteba that approximately infected more than one million Windows computers across the globe and stored its command-and-control server addresses on Bitcoin's blockchain as a resilience mechanism. As part of the efforts, Google's Threat Analysis Group (TAG) said it partnered with the CyberCrime Investigation Group over the past year to terminate around 63 million Google Docs that were observed to have distributed the malware, alongside 1,183 Google Accounts, 908 Cloud Projects, and 870 Google Ads accounts that were associated with its distribution. Google TAG further said it worked with internet infrastructure providers and hosting providers, such as Cloudflare, to dismantle the malware by taking down servers and placing interstitial warning pages in front of the malicious domains. In tandem, the internet giant also announced a lawsuit against two Russ

The operators of TrickBot malware have infected an estimated 140,000 victims across 149 countries a little over a year after attempts were to dismantle its infrastructure, even as the advanced Trojan is fast becoming an entry point for Emotet, another botnet that was taken down at the start of 2021. Most of the victims detected since November 1, 2020, are from Portugal (18%), the U.S. (14%), and India (5%), followed by Brazil (4%), Turkey (3%), Russia (3%), and China (3%), Check Point Research noted in a report shared with The Hacker News, with government, finance, and manufacturing entities emerging the top affected industry verticals. "Emotet is a strong indicator of future ransomware attacks, as the malware provides ransomware gangs a backdoor into compromised machines," said the researchers, who detected 223 different Trickbot campaigns over the course of the last six months. Both TrickBot and Emotet are botnets, which are a network of internet-connected devices infe

Network-attached storage (NAS) appliance maker QNAP on Tuesday released a new advisory warning of a cryptocurrency mining malware targeting its devices, urging customers to take preventive steps with immediate effect. "A bitcoin miner has been reported to target QNAP NAS. Once a NAS is infected, CPU usage becomes unusually high where a process named '[oom_reaper]' could occupy around 50% of the total CPU usage," the Taiwanese company  said  in an alert. "This process mimics a kernel process but its [process identifier] is usually greater than 1000." QNAP said it's currently investigating the infections, but did not share more information on the initial access vector that's being used to compromise the NAS devices. Affected users can remove the malware by restarting the appliances. In the interim, the company is recommending that users update their QTS (and QuTS Hero) operating systems to the latest version, enforce strong passwords for administr

Nobelium, the threat actor attributed to the massive SolarWinds supply chain compromise, has been once again linked to a series of attacks targeting multiple cloud solution providers, services, and reseller companies, as the hacking group continues to refine and retool its tactics at an alarming pace in response to public disclosures. The intrusions, which are being tracked by Mandiant under two different activity clusters UNC3004 and UNC2652, are both associated with UNC2452, an  uncategorized threat group  that has since been tied to the Russian intelligence service. UNC2652, in particular, has been observed targeting diplomatic entities with phishing emails containing HTML attachments with malicious JavaScript, ultimately dropping a Cobalt Strike Beacon onto the infected devices. "In most instances, post compromise activity included theft of data relevant to Russian interests," Mandiant researchers Luke Jenkins, Sarah Hawley, Parnian Najafi, and Doug Bienstock  said  in

Users looking to activate Windows without using a digital license or a product key are being targeted by tainted installers to deploy malware designed to plunder credentials and other information in cryptocurrency wallets. The malware, dubbed " CryptBot ," is an information stealer capable of obtaining credentials for browsers, cryptocurrency wallets, browser cookies, credit cards, and capturing screenshots from the infected systems. Deployed via cracked software, the latest attack involves the malware masquerading as KMSPico. KMSPico is an unofficial tool that's used to illicitly  activate  the full features of pirated copies of software such as Microsoft Windows and Office suite without actually owning a license key. "The user becomes infected by clicking one of the malicious links and downloading either KMSPico, Cryptbot, or another malware without KMSPico," Red Canary researcher Tony Lambert  said  in a report published last week. "The adversaries

A series of malicious campaigns have been leveraging fake installers of popular apps and games such as Viber, WeChat, NoxPlayer, and Battlefield as a lure to trick users into downloading a new backdoor and an undocumented malicious Google Chrome extension with the goal of stealing credentials and data stored in the compromised systems as well as maintaining persistent remote access. Cisco Talos attributed the malware payloads to an unknown actor that goes by the alias " magnat ," noting that "these two families have been subject to constant development and improvement by their authors." The attacks are believed to have commenced in late 2018, with intermittent activity observed towards the end of 2019 and through early 2020, followed by fresh spikes since April 2021, while mainly singling out users in Canada, followed by the U.S., Australia, Italy, Spain, and Norway. A noteworthy aspect of the intrusions is the use of malvertising as a means to strike individua

E-commerce platforms in the U.S., Germany, and France have come under attack from a new form of malware that targets Nginx servers in an attempt to masquerade its presence and slip past detection by security solutions. "This novel code injects itself into a host Nginx application and is nearly invisible," Sansec Threat Research team  said  in a new report. "The parasite is used to steal data from eCommerce servers, also known as 'server-side Magecart.'"  A free and open-source software, Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy, and HTTP cache. NginRAT, as the advanced malware is called, works by hijacking a host Nginx application to embed itself into the webserver process. The remote access trojan itself is delivered via  CronRAT , another piece of malware the Dutch cybersecurity firm disclosed last week as hiding its malicious payloads in cron jobs scheduled to execute on February 31st, a non-existent ca

Four different malicious frameworks designed to attack air-gapped networks were detected in the first half of 2020 alone, bringing the total number of such toolkits to 17 and offering adversaries a pathway to cyber espionage and exfiltrate classified information. "All frameworks are designed to perform some form of espionage, [and] all the frameworks used USB drives as the physical transmission medium to transfer data in and out of the targeted air-gapped networks," ESET researchers Alexis Dorais-Joncas and Facundo Muñoz  said  in a comprehensive study of the frameworks. Air-gapping is a network security measure designed to prevent unauthorized access to systems by physically isolating them from other unsecured networks, including local area networks and the public internet. This also implies that the only way to transfer data is by connecting a physical device to it, such as USB drives or external hard disks. Given that the mechanism is one of the most common ways  SCAD

A newly discovered botnet capable of staging distributed denial-of-service (DDoS) attacks targeted unpatched Ribbon Communications (formerly Edgewater Networks) EdgeMarc appliances belonging to telecom service provider AT&T by exploiting a four-year-old flaw in the network appliances. Chinese tech giant Qihoo 360's Netlab network security division, which detected the botnet first on October 27, 2021, called it  EwDoor , noting it observed 5,700 compromised IP addresses located in the U.S. during a brief three-hour window. "So far, the EwDoor in our view has undergone three versions of updates, and its main functions can be summarized into two main categories of DDoS attacks and backdoor," the researchers  noted . "Based on the attacked devices are telephone communication related, we presume that its main purpose is DDoS attacks, and gathering of sensitive information, such as call logs." Propagating through a flaw in EdgeMarc devices, EwDoor supports a

Four different Android banking trojans were spread via the official Google Play Store between August and November 2021, resulting in more than 300,000 infections through various dropper apps that posed as seemingly harmless utility apps to take full control of the infected devices. Designed to deliver Anatsa (aka TeaBot), Alien, ERMAC, and Hydra, cybersecurity firm ThreatFabric  said  the malware campaigns are not only more refined, but also engineered to have a small malicious footprint, effectively ensuring that the payloads are installed only on smartphones devices from specific regions and preventing the malware from being downloaded during the publishing process . Once installed, these banking trojans can surreptitiously siphon user passwords and SMS-based two-factor authentication codes, keystrokes, screenshots, and even deplete users' bank accounts without their knowledge by using a tool called Automatic Transfer System ( ATSs ). The apps have since been removed from the

North Korean defectors, journalists who cover North Korea-related news, and entities in South Korea are being zeroed in on by a nation-state-sponsored advanced persistent threat (APT) as part of a new wave of highly-targeted surveillance attacks. Russian cybersecurity firm Kaspersky attributed the infiltrations to a North Korean hacker group tracked as  ScarCruft , also known as  APT37 , Reaper Group, InkySquid, and Ricochet Chollima. "The actor utilized three types of malware with similar functionalities: versions implemented in PowerShell, Windows executables and Android applications," the company's Global Research and Analysis Team (GReAT)  said  in a new report published today. "Although intended for different platforms, they share a similar command and control scheme based on HTTP communication. Therefore, the malware operators can control the whole malware family through one set of command and control scripts." Likely active since at least 2012, ScarC

Threat actors are exploiting improperly-secured Google Cloud Platform (GCP) instances to download cryptocurrency mining software to the compromised systems as well as abusing its infrastructure to install ransomware, stage phishing campaigns, and even generate traffic to YouTube videos for view count manipulation. "While cloud customers continue to face a variety of threats across applications and infrastructure, many successful attacks are due to poor hygiene and a lack of basic control implementation," Google's Cybersecurity Action Team (CAT)  outlined  as part of its recent Threat Horizons report published last week. Of the 50 recently compromised GCP instances, 86% of them were used to conduct cryptocurrency mining, in some cases within 22 seconds of successful breach, while 10% of the instances were exploited to perform scans of other publicly accessible hosts on the Internet to identify vulnerable systems, and 8% of the instances were used to strike other entiti