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Threat actors are exploiting unpatched Atlassian servers to deploy a Linux variant of Cerber (aka C3RB3R) ransomware. The attacks leverage  CVE-2023-22518  (CVSS score: 9.1), a critical security vulnerability impacting the Atlassian Confluence Data Center and Server that allows an unauthenticated attacker to reset Confluence and create an administrator account. Armed with this access, a threat actor could take over affected systems, leading to a full loss of confidentiality, integrity, and availability. According to cloud security firm Cado, financially motivated cybercrime groups have been observed abusing the newly created admin account to install the Effluence web shell plugin and allow for the execution of arbitrary commands on the host. "The attacker uses this web shell to download and run the primary Cerber payload," Nate Bill, threat intelligence engineer at Cado,  said  in a report shared with The Hacker News. "In a default install, the Confluence applicati

The maintainers of the  PuTTY Secure Shell (SSH) and Telnet client  are alerting users of a critical vulnerability impacting versions from 0.68 through 0.80 that could be exploited to achieve full recovery of NIST P-521 (ecdsa-sha2-nistp521) private keys. The flaw has been assigned the CVE identifier  CVE-2024-31497 , with the discovery credited to researchers Fabian Bäumer and Marcus Brinkmann from the Ruhr University Bochum. "The effect of the vulnerability is to compromise the private key," the PuTTY project  said  in an advisory. "An attacker in possession of a few dozen signed messages and the public key has enough information to recover the private key, and then forge signatures as if they were from you, allowing them to (for instance) log in to any servers you use that key for." However, in order to obtain the signatures, an attacker will have to compromise the server for which the key is used to authenticate to. In a message posted on the Open Source

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Operational Technology (OT)  refers to the hardware and software used to change, monitor, or control the enterprise's physical devices, processes, and events. Unlike traditional Information Technology (IT) systems, OT systems directly impact the physical world. This unique characteristic of OT brings additional cybersecurity considerations not typically present in conventional IT security architectures. The convergence of IT and OT Historically, IT and Operational Technology (OT) have operated in separate silos, each with its own set of protocols, standards, and cybersecurity measures. However, these two domains are increasingly converging with the advent of the Industrial Internet of Things (IIoT). While beneficial in terms of increased efficiency and data-driven decision-making, this convergence also exposes OT systems to the same cyber threats that IT systems face. Unique Cybersecurity Considerations for OT Real-time requirements Operational Technology systems often opera

The Android banking trojan known as Vultur has resurfaced with a suite of new features and improved anti-analysis and detection evasion techniques, enabling its operators to remotely interact with a mobile device and harvest sensitive data. "Vultur has also started masquerading more of its malicious activity by encrypting its C2 communication, using multiple encrypted payloads that are decrypted on the fly, and using the guise of legitimate applications to carry out its malicious actions," NCC Group researcher Joshua Kamp  said  in a report published last week. Vultur was  first disclosed  in early 2021, with the malware capable of leveraging Android's accessibility services APIs to execute its malicious actions. The malware has been observed to be  distributed via trojanized dropper apps  on the Google Play Store, masquerading as authenticator and productivity apps to trick unwitting users into installing them. These dropper apps are offered as part of a dropper-as-a

Security vulnerabilities discovered in Dormakaba's Saflok electronic RFID locks used in hotels could be weaponized by threat actors to forge keycards and stealthily slip into locked rooms. The shortcomings have been collectively named  Unsaflok  by researchers Lennert Wouters, Ian Carroll, rqu, BusesCanFly, Sam Curry, sshell, and Will Caruana. They were reported to the Zurich-based company in September 2022. "When combined, the identified weaknesses allow an attacker to unlock all rooms in a hotel using a single pair of forged keycards," they  said . Full technical specifics about the vulnerabilities have been withheld, considering the potential impact, and are expected to be made public in the future. The issues impact more than three million hotel locks spread across 13,00 properties in 131 countries. This includes the models Saflok MT, and Quantum, RT, Saffire, and Confidant series devices, which are used in combination with the System 6000, Ambiance, and Communit

A Linux version of a multi-platform backdoor called  DinodasRAT  has been detected in the wild targeting China, Taiwan, Turkey, and Uzbekistan,  new findings  from Kaspersky reveal. DinodasRAT, also known as XDealer, is a C++-based malware that offers the ability to harvest a wide range of sensitive data from compromised hosts. In October 2023, Slovak cybersecurity firm ESET  revealed  that a governmental entity in Guyana had been targeted as part of a cyber espionage campaign dubbed Operation Jacana to deploy the Windows version of the implant. Then last week, Trend Micro  detailed  a threat activity cluster it tracks as Earth Krahang and which has shifted to using DinodasRAT since 2023 in its attacks aimed at several government entities worldwide. The use of DinodasRAT has been attributed to various China-nexus threat actors, including  LuoYu , once again reflecting the tool sharing prevalent among hacking crews identified as acting on behalf of the country. Kaspersky said it

In the whirlwind of modern software development, teams race against time, constantly pushing the boundaries of innovation and efficiency. This relentless pace is fueled by an evolving tech landscape, where SaaS domination, the proliferation of microservices, and the ubiquity of CI/CD pipelines are not just trends but the new norm. Amidst this backdrop, a critical aspect subtly weaves into the narrative — the handling of non-human identities. The need to manage API keys, passwords, and other sensitive data becomes more than a checklist item yet is often overshadowed by the sprint toward quicker releases and cutting-edge features. The challenge is clear: How do software teams maintain the sanctity of secrets without slowing down their stride? Challenges in the development stage of non-human identities The pressure to deliver rapidly in organizations today can lead developers to take shortcuts, compromising security. Secrets are the credentials used for non-human identities. Some stan

As SaaS applications dominate the business landscape, organizations need optimized network speed and robust security measures. Many of them have been turning to SASE, a product category that offers cloud-based network protection while enhancing network infrastructure performance. However, a new report: "Better Together: SASE and Enterprise Browser Extension for the SaaS-First Enterprise" ( Download here ), challenges SASE's ability to deliver comprehensive security against web-borne cyber threats on its own. From phishing attacks to malicious extensions and account takeovers, traditional network traffic analysis and security falls short. The report sheds light on these limitations and introduces the role of secure browser extensions as an essential component in a comprehensive security strategy. SASE Advantages and Limitations SASE takes on a dual role in addressing both infrastructure and security. However, while SASE offers clear advantages in security, it may not e

A new phishing campaign has been observed leveraging a novel loader malware to deliver an information stealer and keylogger called  Agent Tesla . Trustwave SpiderLabs said it identified a phishing email bearing this attack chain on March 8, 2024. The message masquerades as a bank payment notification, urging the user to open an archive file attachment. The archive ("Bank Handlowy w Warszawie - dowód wpłaty_pdf.tar.gz") conceals a malicious loader that activates the procedure to deploy Agent Tesla on the compromised host. "This loader then used obfuscation to evade detection and leveraged polymorphic behavior with complex decryption methods," security researcher Bernard Bautista  said  in a Tuesday analysis. "The loader also exhibited the capability to bypass antivirus defenses and retrieved its payload using specific URLs and user agents leveraging proxies to further obfuscate traffic." The tactic of embedding malware within seemingly benign files is

German authorities have announced the takedown of an illicit underground marketplace called  Nemesis Market  that peddled narcotics, stolen data, and various cybercrime services. The Federal Criminal Police Office (aka Bundeskriminalamt or BKA) said it seized the digital infrastructure associated with the darknet service located in Germany and Lithuania and confiscated €94,000 ($102,107) in cryptocurrency assets. The operation, conducted in collaboration with law enforcement agencies from Germany, Lithuania, and the U.S., took place on March 20, 2024, following an extensive investigation that commenced in October 2022. Founded in 2021, Nemesis Market is estimated to have had more than 150,000 user accounts and 1,100 seller accounts from all over the world prior to its shutdown. Almost 20$ of the seller accounts were from Germany. "The range of goods available on the marketplace included narcotics, fraudulently obtained data and goods, as well as a selection of cybercrime serv

A China-linked threat cluster leveraged security flaws in Connectwise ScreenConnect and F5 BIG-IP software to deliver custom malware capable of delivering additional backdoors on compromised Linux hosts as part of an "aggressive" campaign. Google-owned Mandiant is  tracking  the activity under its uncategorized moniker  UNC5174  (aka Uteus or Uetus), describing it as a "former member of Chinese hacktivist collectives that has since shown indications of acting as a contractor for China's Ministry of State Security (MSS) focused on executing access operations." The threat actor is believed to have orchestrated widespread attacks against Southeast Asian and U.S. research and education institutions, Hong Kong businesses, charities and non-governmental organizations (NGOs), and U.S. and U.K. government organizations between October and November 2023, and again in February 2024 using the ScreenConnect bug. Initial access to target environments is facilitated by t

The  ThreatLocker® Zero Trust Endpoint Protection Platform  implements a strict deny-by-default, allow-by-exception security posture to give organizations the ability to set policy-based controls within their environment and mitigate countless cyber threats, including zero-days, unseen network footholds, and malware attacks as a direct result of user error. With the capabilities of the ThreatLocker® Zero Trust Endpoint Protection Platform implemented into their cybersecurity strategy, organizations in any industry around the world can check off the requirements of most compliance frameworks and sleep better at night knowing they are protected from the most devastating of cyberattacks, such as ransomware. ThreatLocker has shared a  free downloadable asset  to equip IT professionals with cybersecurity compliance best practices. This article aims to elaborate on, and provide a basic over of, the asset. Complexities Across Compliance Frameworks Cybersecurity compliance frameworks exis

The U.S. Department of Justice (DoJ), along with 16 other state and district attorneys general, on Thursday  accused  Apple of illegally maintaining a monopoly over smartphones, thereby undermining, among other things, the security and privacy of users when messaging non-iPhone users. "Apple wraps itself in a cloak of privacy, security, and consumer preferences to justify its anticompetitive conduct," the landmark antitrust lawsuit  said . "Apple deploys privacy and security justifications as an elastic shield that can stretch or contract to serve Apple's financial and business interests." "Apple selectively compromises privacy and security interests when doing so is in Apple's own financial interest – such as degrading the security of text messages, offering governments and certain companies the chance to access more private and secure versions of app stores, or accepting billions of dollars each year for choosing Google as its default search engin

Cybersecurity researchers have shed light on a tool referred to as  AndroxGh0st  that's used to target Laravel applications and steal sensitive data. "It works by scanning and taking out important information from .env files, revealing login details linked to AWS and Twilio," Juniper Threat Labs researcher Kashinath T Pattan  said . "Classified as an SMTP cracker, it exploits SMTP using various strategies such as credential exploitation, web shell deployment, and vulnerability scanning." AndroxGh0st has been detected in the wild since at least 2022, with threat actors leveraging it to access Laravel environment files and steal credentials for various cloud-based applications like Amazon Web Services (AWS), SendGrid, and Twilio. Attack chains involving the Python malware are known to exploit known security flaws in Apache HTTP Server, Laravel Framework, and PHPUnit to gain initial access and for privilege escalation and persistence. Earlier this January, U