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Microsoft is warning of a new variant of the Sysrv botnet that's exploiting multiple security flaws in web applications and databases to install coin miners on both Windows and Linux systems. The tech giant, which has called the new version Sysrv-K , is said to weaponize an  array of exploits  to gain control of web servers. The cryptojacking botnet first emerged in December 2020. "Sysrv-K scans the internet to find web servers with various vulnerabilities to install itself," the company  said  in a series of tweets. "The vulnerabilities range from path traversal and remote file disclosure to arbitrary file download and remote code execution vulnerabilities." This also includes  CVE-2022-22947  (CVSS score: 10.0), a code injection vulnerability in Spring Cloud Gateway that could be exploited to allow arbitrary remote execution on a remote host via a maliciously crafted request. It's worth noting that the abuse of CVE-2022-22947 has prompted the U...

More than 200 Android apps masquerading as fitness, photo editing, and puzzle apps have been observed distributing spyware called Facestealer to siphon user credentials and other valuable information.  "Similar to  Joker , another piece of mobile malware, Facestealer changes its code frequently, thus spawning many variants," Trend Micro analysts Cifer Fang, Ford Quin, and Zhengyu Dong  said  in a new report. "Since its discovery, the spyware has continuously beleaguered Google Play." Facestealer, first  documented  by Doctor Web in July 2021, refers to a group of fraudulent apps that invade the official app marketplace for Android with the goal of plundering sensitive data such as Facebook login credentials. Of the 200 apps, 42 are VPN services, followed by a camera (20) and photo editing applications (13). In addition to harvesting credentials, the apps are also designed to collect Facebook cookies and personally identifiable information associated w...

Image source: z3r00t The U.S. Cybersecurity and Infrastructure Security Agency on Monday  added  two security flaws, including the recently disclosed remote code execution bug affecting Zyxel firewalls, to its  Known Exploited Vulnerabilities Catalog , citing evidence of active exploitation. Tracked as  CVE-2022-30525 , the vulnerability is rated 9.8 for severity and relates to a command injection flaw in select versions of the Zyxel firewall that could enable an unauthenticated adversary to execute arbitrary commands on the underlying operating system. Impacted devices include - USG FLEX 100, 100W, 200, 500, 700 USG20-VPN, USG20W-VPN ATP 100, 200, 500, 700, 800, and VPN series The issue, for which patches were released by the Taiwanese firm in late April (ZLD V5.30), became public knowledge on May 12 following a coordinated disclosure process with Rapid7. Source: Shadowserver Merely a day later, the Shadowserver Foundation  said  it began dete...

If you invite guest users into your Entra ID tenant, you may be opening yourself up to a surprising risk.  A gap in access control in Microsoft Entra's subscription handling is allowing guest users to create and transfer subscriptions into the tenant they are invited into, while maintaining full ownership of them.  All the guest user needs are the permissions to create subscriptions in their home tenant, and an invitation as a guest user into an external tenant. Once inside, the guest user can create subscriptions in their home tenant, transfer them into the external tenant, and retain full ownership rights. This stealthy privilege escalation tactic allows a guest user to gain a privileged foothold in an environment where they should only have limited access. Many organizations treat guest accounts as low-risk based on their temporary, limited access, but this behavior, which works as designed, opens the door to known attack paths and lateral movement within the resource t...

A first-of-its-kind security analysis of iOS Find My function has identified a novel attack surface that makes it possible to tamper with the firmware and load malware onto a Bluetooth chip that's executed while an iPhone is "off." The mechanism takes advantage of the fact that wireless chips related to Bluetooth, Near-field communication ( NFC ), and ultra-wideband ( UWB ) continue to operate while iOS is shut down when entering a "power reserve" Low Power Mode (LPM). While this is done so as to enable features like  Find My  and facilitate  Express Card transactions , all the three wireless chips have direct access to the secure element, academics from the Secure Mobile Networking Lab ( SEEMOO ) at the Technical University of Darmstadt  said  in a paper entitled "Evil Never Sleeps." "The Bluetooth and UWB chips are hardwired to the Secure Element (SE) in the NFC chip, storing secrets that should be available in LPM," the researchers sa...

Are you aware of fake clickjacking bug bounty reports? If not, you should be. This article will get you up to speed and help you to stay alert. What are clickjacking bug bounty reports? If we start by breaking up the term into its component parts, a bug bounty is a program offered by an organization, in which individuals are rewarded for finding and reporting software bugs. These programs are often used by companies as a cost-effective way to find and fix software vulnerabilities, thereby improving the security of their products. They also help to build goodwill with the security community.  For the bounty hunters (or white hat hackers), they have an opportunity to earn money and recognition for their skills.  Clickjacking is a malicious technique used to trick users into clicking on something that they think is safe, but is actually harmful. For example, a hacker could create a fake button that looks like the "like" button on a social media site. When users click on it,...

An unidentified threat actor has been linked to an actively in-development malware toolkit called the "Eternity Project" that lets professional and amateur cybercriminals buy stealers, clippers, worms, miners, ransomware, and a distributed denial-of-service (DDoS) bot. What makes this malware-as-a-service (MaaS) stand out is that besides using a Telegram channel to communicate updates about the latest features, it also employs a  Telegram Bot  that enables the purchasers to build the binary. "The [threat actors] provide an option in the Telegram channel to customize the binary features, which provides an effective way to build binaries without any dependencies," researchers from Cyble  said  in a report published last week. Each of the modules can be leased separately and provides paid access to a wide variety of functions - Eternity Stealer  ($260 for an annual subscription) - An information stealer to siphon passwords, cookies, credit cards, browser cr...

The European Parliament announced a "provisional agreement" aimed at improving cybersecurity and resilience of both public and private sector entities in the European Union. The revised directive, called " NIS2 " (short for network and information systems), is expected to replace the  existing legislation  on cybersecurity that was established in July 2016. The revamp sets ground rules, requiring companies in energy, transport, financial markets, health, and digital infrastructure sectors to adhere to risk management measures and reporting obligations. Among the provisions in the new legislation are flagging cybersecurity incidents to authorities within 24 hours, patching software vulnerabilities, and readying risk management measures to secure networks, failing which can incur monetary penalties. "The directive will formally establish the European Cyber Crises Liaison Organization Network, EU-CyCLONe, which will support the coordinated management of larg...