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A new malware loader is being used by threat actors to deliver a wide range of  information stealers  such as Lumma Stealer (aka LummaC2), Vidar, RecordBreaker (aka Raccoon Stealer V2), and  Rescoms . Cybersecurity firm ESET is tracking the trojan under the name  Win/TrojanDownloader.Rugmi . "This malware is a loader with three types of components: a downloader that downloads an encrypted payload, a loader that runs the payload from internal resources, and another loader that runs the payload from an external file on the disk," the company  said  in its Threat Report H2 2023. Telemetry data gathered by the company shows that detections for the Rugmi loader spiked in October and November 2023, surging from single digit daily numbers to hundreds per day. Stealer malware is typically sold under a malware-as-a-service (MaaS) model to other threat actors on a subscription basis. Lumma Stealer, for instance, is advertised in underground forums for $250 a mo...

A new zero-day security flaw has been discovered in Apache OfBiz, an open-source Enterprise Resource Planning (ERP) system that could be exploited to bypass authentication protections. The vulnerability, tracked as  CVE-2023-51467 , resides in the login functionality and is the result of an incomplete patch for another critical vulnerability ( CVE-2023-49070 , CVSS score: 9.8) that was released earlier this month. "The  security measures  taken to patch CVE-2023-49070 left the root issue intact and therefore the authentication bypass was still present," the SonicWall Capture Labs threat research team, which discovered the bug,  said  in a statement shared with The Hacker News. CVE-2023-49070 refers to a pre-authenticated remote code execution flaw impacting versions prior to 18.12.10 that, when successfully exploited, could allow threat actors to gain full control over the server and siphon sensitive data. It is caused due to a deprecated XML-RPC component ...

Barracuda has revealed that Chinese threat actors exploited a new zero-day in its Email Security Gateway (ESG) appliances to deploy backdoors on a "limited number" of devices. Tracked as  CVE-2023-7102 , the issue relates to a case of  arbitrary code execution  that resides within a third-party and open-source library named Spreadsheet::ParseExcel that's used by the Amavis scanner within the gateway to screen Microsoft Excel email attachments for malware. The company attributed the activity to a threat actor tracked by Google-owned Mandiant as  UNC4841 , which was previously linked to the  active exploitation  of another zero-day in Barracuda devices (CVE-2023-2868, CVSS score: 9.8) earlier this year. Successful exploitation of the new flaw is accomplished by means of a specially crafted Microsoft Excel email attachment. This is followed by the deployment of new variants of known implants called  SEASPY and SALTWATER  that are equipped to off...

A new Android backdoor has been discovered with potent capabilities to carry out a range of malicious actions on infected devices. Dubbed  Xamalicious  by the McAfee Mobile Research Team, the malware is so named for the fact that it's developed using an open-source mobile app framework called Xamarin and abuses the operating system's accessibility permissions to fulfill its objectives. It's also capable of gathering metadata about the compromised device and contacting a command-and-control (C2) server to fetch a second-stage payload, but only after determining if it fits the bill. The second stage is "dynamically injected as an assembly DLL at runtime level to take full control of the device and potentially perform fraudulent actions such as clicking on ads, installing apps, among other actions financially motivated without user consent," security researcher Fernando Ruiz  said . The cybersecurity firm said it identified 25 apps that come with this active thr...

Poorly secured Linux SSH servers are being targeted by bad actors to install port scanners and dictionary attack tools with the goal of targeting other vulnerable servers and co-opting them into a network to carry out cryptocurrency mining and distributed denial-of-service (DDoS) attacks. "Threat actors can also choose to install only scanners and sell the breached IP and account credentials on the dark web," the AhnLab Security Emergency Response Center (ASEC)  said  in a report on Tuesday. In these attacks, adversaries try to guess a server's SSH credentials by running through a list of commonly used combinations of usernames and passwords, a technique called dictionary attack. Should the brute-force attempt be successful, it's followed by the threat actor deploying other malware, including scanners, to scan for other susceptible systems on the internet. Specifically, the scanner is designed to look for systems where port 22 -- which is associated with the SSH ...

The banking malware known as  Carbanak  has been observed being used in  ransomware attacks  with updated tactics. "The malware has adapted to incorporate attack vendors and techniques to diversify its effectiveness," cybersecurity firm NCC Group  said  in an analysis of ransomware attacks that took place in November 2023. "Carbanak returned last month through new distribution chains and has been distributed through compromised websites to impersonate various business-related software." Some of the impersonated tools include popular business-related software such as HubSpot, Veeam, and Xero. Carbanak , detected in the wild since at least 2014, is known for its data exfiltration and remote control features. Starting off as a banking malware, it has been put to use by the  FIN7 cybercrime syndicate . In the latest attack chain documented by NCC Group, the compromised websites are designed to host malicious installer files masquerading as legitimat...

The threat actor referred to as  Cloud Atlas  has been linked to a set of spear-phishing attacks on Russian enterprises. Targets included a Russian agro-industrial enterprise and a state-owned research company, according to a  report  from F.A.C.C.T., a standalone cybersecurity company formed after Group-IB's formal exit from Russia earlier this year. Cloud Atlas, active since at least 2014, is a cyber espionage group of unknown origin. Also called Clean Ursa, Inception, Oxygen, and Red October, the threat actor is known for its persistent campaigns targeting Russia, Belarus, Azerbaijan, Turkey, and Slovenia. In December 2022, Check Point and Positive Technologies  detailed  multi-stage attack sequences that led to the deployment of a PowerShell-based backdoor referred to as PowerShower as well as DLL payloads capable of communicating with an actor-controlled server. The starting point is a phishing message bearing a lure document that exploits  ...

Two British teens part of the LAPSUS$ cyber crime and extortion gang have been sentenced for their roles in orchestrating a string of high-profile attacks against a number of companies. Arion Kurtaj, an 18-year-old from Oxford, has been sentenced to an indefinite hospital order due to his intent to get back to cybercrime "as soon as possible," BBC  reported . Kurtaj, who is autistic, was deemed unfit to stand trial. Another LAPSUS$ member, a 17-year-old unnamed minor, was sentenced to an 18-month-long Youth Rehabilitation Order, including a three-month intensive supervision and surveillance requirement. He was found guilty of two counts of fraud, two Computer Misuse Act offenses, and one count of blackmail. Both defendants  were initially arrested in January 2022, and then released under investigation. They were re-arrested in March 2022. While Kurtaj was later granted bail, he continued to attack various companies until he was arrested again in September. The attack sp...

Threat hunters have discovered a rogue WordPress plugin that's capable of creating bogus administrator users and injecting malicious JavaScript code to steal credit card information. The skimming activity is part of a  Magecart campaign  targeting e-commerce websites, according to Sucuri. "As with many other malicious or fake WordPress plugins it contains some deceptive information at the top of the file to give it a veneer of legitimacy," security researcher Ben Martin  said . "In this case, comments claim the code to be 'WordPress Cache Addons.'" Malicious plugins typically find their way to WordPress sites via either a  compromised admin user  or the  exploitation of security flaws  in another plugin already installed on the site. Post installation, the plugin replicates itself to the  mu-plugins  (or must-use plugins) directory so that it's automatically enabled and conceals its presence from the admin panel. "Since the only way to...

Indian government entities and the defense sector have been targeted by a phishing campaign that's engineered to drop Rust-based malware for intelligence gathering. The activity, first detected in October 2023, has been codenamed  Operation RusticWeb  by enterprise security firm SEQRITE. "New Rust-based payloads and encrypted PowerShell commands have been utilized to exfiltrate confidential documents to a web-based service engine, instead of a dedicated command-and-control (C2) server," security researcher Sathwik Ram Prakki  said . Tactical overlaps have been uncovered between the cluster and those widely tracked under the monikers  Transparent Tribe  and SideCopy, both of which are assessed to be linked to Pakistan. SideCopy is also a suspected subordinate element within Transparent Tribe. Last month, SEQRITE  detailed  multiple campaigns undertaken by the threat actor targeting Indian government bodies to deliver numerous trojans such as AllaKo...

A new phishing campaign is leveraging decoy Microsoft Word documents as bait to deliver a backdoor written in the  Nim programming language . "Malware written in uncommon programming languages puts the security community at a disadvantage as researchers and reverse engineers' unfamiliarity can hamper their investigation," Netskope researchers Ghanashyam Satpathy and Jan Michael Alcantara  said . Nim-based malware has been a rarity in the threat landscape, although that has been slowly changing in recent years as attackers continue to either develop custom tools from scratch using the language or port existing versions of their nefarious programs to it. This has been demonstrated in the case of loaders such as  NimzaLoader ,  Nimbda ,  IceXLoader , as well as ransomware families tracked under the names  Dark Power  and  Kanti . The attack chain documented by Netskope begins with a phishing email containing a Word document attachment that, when...

The threat actor known as  UAC-0099  has been linked to continued attacks aimed at Ukraine, some of which leverage a high-severity flaw in the WinRAR software to deliver a malware strain called LONEPAGE. "The threat actor targets Ukrainian employees working for companies outside of Ukraine," cybersecurity firm Deep Instinct  said  in a Thursday analysis. UAC-0099 was  first documented  by the Computer Emergency Response Team of Ukraine (CERT-UA) in June 2023, detailing its attacks against state organizations and media entities for espionage motives. The attack chains leveraged phishing messages containing HTA, RAR, and LNK file attachments that led to the deployment of  LONEPAGE , a Visual Basic Script (VBS) malware that's capable of contacting a command-and-control (C2) server to retrieve additional payloads such as keyloggers, stealers, and screenshot malware. "During 2022-2023, the mentioned group received unauthorized remote access to several...

Organizations in the Defense Industrial Base (DIB) sector are in the crosshairs of an Iranian threat actor as part of a campaign designed to deliver a never-before-seen backdoor called FalseFont. The findings come from Microsoft, which is tracking the activity under its weather-themed moniker  Peach Sandstorm  (formerly Holmium), which is also known as APT33, Elfin, and Refined Kitten. "FalseFont is a custom backdoor with a wide range of functionalities that allow operators to remotely access an infected system, launch additional files, and send information to its [command-and-control] servers," the Microsoft Threat Intelligence team  said  on X (previously Twitter). The first recorded use of the implant was in early November 2023. The tech giant further said that the latest development aligns with previous activity from Peach Sandstorm and demonstrates a continued evolution of the threat actor's tradecraft. In a report published in September 2023, Microsoft...

A new analysis of the sophisticated commercial spyware called Predator has revealed that its ability to persist between reboots is offered as an "add-on feature" and that it depends on the licensing options opted by a customer. "In 2021, Predator spyware couldn't survive a reboot on the infected Android system (it had it on iOS)," Cisco Talos researchers Mike Gentile, Asheer Malhotra, and Vitor Ventura  said  in a report shared with The Hacker News. "However, by April 2022, that capability was being offered to their customers." Predator is the product of a consortium called the Intellexa Alliance, which includes Cytrox (subsequently acquired by WiSpear), Nexa Technologies, and Senpai Technologies. Both Cytrox and Intellexa were  added  to the Entity List by the U.S. in July 2023 for "trafficking in cyber exploits used to gain access to information systems." The latest findings come more than six months after the cybersecurity vendor detai...

Cybersecurity researchers have discovered an updated version of an Android banking malware called Chameleon that has expanded its targeting to include users in the U.K. and Italy. "Representing a restructured and enhanced iteration of its predecessor, this evolved Chameleon variant excels in executing Device Takeover (DTO) using the accessibility service, all while expanding its targeted region," Dutch mobile security firm ThreatFabric  said  in a report shared with The Hacker News. Chameleon was  previously documented  by Cyble in April 2023, noting that it had been used to single out users in Australia and Poland since at least January. Like other banking malware, it's known to abuse its permissions to Android's accessibility service to harvest sensitive data and conduct overlay attacks. The rogue apps containing the earlier version were hosted on phishing pages and found to impersonate genuine institutions in the countries, such as the Australian Taxation Offi...

A new piece of JavaScript malware has been observed attempting to steal users' online banking account credentials as part of a campaign that has targeted more than 40 financial institutions across the world. The activity cluster, which employs JavaScript web injections, is estimated to have led to at least 50,000 infected user sessions spanning North America, South America, Europe, and Japan. IBM Security Trusteer said it detected the campaign in March 2023. "Threat actors' intention with the web injection module is likely to compromise popular banking applications and, once the malware is installed, intercept the users' credentials in order to then access and likely monetize their banking information," security researcher Tal Langus  said . Attack chains are characterized by the use of scripts loaded from the threat actor-controlled server ("jscdnpack[.]com"), specifically targeting a page structure that's common to several banks. It's susp...