cryptojacking | Breaking Cybersecurity News | The Hacker News

Threat actors have been found leveraging a new technique that abuses extended attributes for macOS files to smuggle a new malware called RustyAttr . The Singaporean cybersecurity company has attributed the novel activity with moderate confidence to the infamous North Korea-linked Lazarus Group, citing infrastructure and tactical overlaps observed in connection with prior campaigns, including RustBucket .  Extended attributes refer to additional metadata associated with files and directories that can be extracted using a dedicated command called xattr . They are often used to store information that goes beyond the standard attributes, such as file size, timestamps, and permissions. The malicious applications discovered by Group-IB are built using Tauri , a cross-platform desktop application framework, and signed with a leaked certificate that has since been revoked by Apple. They include an extended attribute that's configured to fetch and run a shell script. The execution of...

The infamous cryptojacking group known as TeamTNT appears to be readying for a new large-scale campaign targeting cloud-native environments for mining cryptocurrencies and renting out breached servers to third-parties. "The group is currently targeting exposed Docker daemons to deploy Sliver malware, a cyber worm, and cryptominers, using compromised servers and Docker Hub as the infrastructure to spread their malware," Assaf Morag, director of threat intelligence at cloud security firm Aqua, said in a report published Friday. The attack activity is once again a testament to the threat actor's persistence and its ability to evolve its tactics and mounting multi-stage assaults with the goal of compromising Docker environments and enlisting them into a Docker Swarm. Besides using Docker Hub to host and distribute their malicious payloads, TeamTNT has been observed offering the victims' computational power to other parties for illicit cryptocurrency mining, thus di...

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Cybersecurity researchers have uncovered a new cryptojacking campaign targeting the Docker Engine API with the goal of co-opting the instances to join a malicious Docker Swarm controlled by the threat actor. This enabled the attackers to "use Docker Swarm's orchestration features for command-and-control (C2) purposes," Datadog researchers Matt Muir and Andy Giron said in an analysis. The attacks leverage Docker for initial access to deploy a cryptocurrency miner on compromised containers, while also fetching and executing additional payloads that are responsible for conducting lateral movement to related hosts running Docker, Kubernetes, or SSH. Specifically, this involves identifying unauthenticated and exposed Docker API endpoints using Internet scanning tools, such as masscan and ZGrab . On vulnerable endpoints, the Docker API is used to spawn an Alpine container and then retrieve an initialization shell script (init.sh) from a remote server ("solscan[.]liv...

The cryptojacking operation known as TeamTNT has likely resurfaced as part of a new campaign targeting Virtual Private Server (VPS) infrastructures based on the CentOS operating system. "The initial access was accomplished via a Secure Shell (SSH) brute force attack on the victim's assets, during which the threat actor uploaded a malicious script," Group-IB researchers Vito Alfano and Nam Le Phuong said in a Wednesday report. The malicious script, the Singaporean cybersecurity company noted, is responsible for disabling security features, deleting logs, terminating cryptocurrency mining processes, and inhibiting recovery efforts. The attack chains ultimately pave the way for the deployment of the Diamorphine rootkit to conceal malicious processes, while also setting up persistent remote access to the compromised host. The campaign has been attributed to TeamTNT with moderate confidence, citing similarities in the tactics, techniques, and procedures (TTPs) observed...

Threat actors are actively exploiting a now-patched, critical security flaw impacting the Atlassian Confluence Data Center and Confluence Server to conduct illicit cryptocurrency mining on susceptible instances. "The attacks involve threat actors that employ methods such as the deployment of shell scripts and XMRig miners, targeting of SSH endpoints, killing competing crypto mining processes, and maintaining persistence via cron jobs," Trend Micro researcher Abdelrahman Esmail said . The security vulnerability exploited is CVE-2023-22527 , a maximum severity bug in older versions of Atlassian Confluence Data Center and Confluence Server that could allow unauthenticated attackers to achieve remote code execution. It was addressed by the Australian software company in mid-January 2024. Trend Micro said it observed a high number of exploitation attempts against the flaw between mid-June and end of July 2024 that leveraged it to drop the XMRig miner on unpatched hosts. At l...

The peer-to-peer malware botnet known as P2PInfect has been found targeting misconfigured Redis servers with ransomware and cryptocurrency miners. The development marks the threat's transition from what appeared to be a dormant botnet with unclear motives to a financially motivated operation. "With its latest updates to the crypto miner, ransomware payload, and rootkit elements, it demonstrates the malware author's continued efforts into profiting off their illicit access and spreading the network further, as it continues to worm across the internet," Cado Security said in a report published this week. P2PInfect came to light nearly a year ago, and has since received updates to target MIPS and ARM architectures. Earlier this January, Nozomi Networks uncovered the use of the malware to deliver miner payloads. It typically spreads by targeting Redis servers and its replication feature to transform victim systems into a follower node of the attacker-controlled server...

Cybersecurity researchers have uncovered a new malware campaign that targets publicly exposed Docket API endpoints with the aim of delivering cryptocurrency miners and other payloads. Included among the tools deployed is a remote access tool that's capable of downloading and executing more malicious programs as well as a utility to propagate the malware via SSH, cloud analytics platform Datadog said in a report published last week. Analysis of the campaign has uncovered tactical overlaps with a previous activity dubbed Spinning YARN , which was observed targeting misconfigured Apache Hadoop YARN, Docker, Atlassian Confluence, and Redis services for cryptojacking purposes. The attack commences with the threat actors zeroing in on Docker servers with exposed ports (port number 2375 ) to initiate a series of steps, starting with reconnaissance and privilege escalation before proceeding to the exploitation phase. Payloads are retrieved from adversary-controlled infrastructure by...

Cybersecurity researchers have warned of an ongoing cryptojacking campaign targeting misconfigured Kubernetes clusters to mine Dero cryptocurrency. Cloud security firm Wiz, which shed light on the activity, said it's an updated variant of a financially motivated operation that was first documented by CrowdStrike in March 2023. "In this incident, the threat actor abused anonymous access to an Internet-facing cluster to launch malicious container images hosted at Docker Hub, some of which have more than 10,000 pulls," Wiz researchers Avigayil Mechtinger, Shay Berkovich, and Gili Tikochinski said . "These docker images contain a UPX-packed DERO miner named 'pause.'" Initial access is accomplished by targeting externally accessible Kubernetes API servers with anonymous authentication enabled to deliver the miner payloads. Unlike the 2023 version that deployed a Kubernetes DaemonSet named "proxy-api," the latest flavor makes use of seemingly b...

The threat actor known as Commando Cat has been linked to an ongoing cryptojacking attack campaign that leverages poorly secured Docker instances to deploy cryptocurrency miners for financial gain. "The attackers used the cmd.cat/chattr docker image container that retrieves the payload from their own command-and-control (C&C) infrastructure," Trend Micro researchers Sunil Bharti and Shubham Singh said in a Thursday analysis. Commando Cat, so named for its use of the open-source Commando project to generate a benign container, was first documented earlier this year by Cado Security. The attacks are characterized by the targeting of misconfigured Docker remote API servers to deploy a Docker image named cmd.cat/chattr, which is then used as a basis to instantiate a container and break out of its confines using the chroot command, and gain access to the host operating system. The final step entails retrieving the malicious miner binary using a curl or wget command fr...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added a security flaw impacting the Oracle WebLogic Server to the Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation. Tracked as CVE-2017-3506 (CVSS score: 7.4), the issue concerns an operating system (OS) command injection vulnerability that could be exploited to obtain unauthorized access to susceptible servers and take complete control. "Oracle WebLogic Server, a product within the Fusion Middleware suite, contains an OS command injection vulnerability that allows an attacker to execute arbitrary code via a specially crafted HTTP request that includes a malicious XML document," CISA said. While the agency did not disclose the nature of attacks exploiting the vulnerability, the China-based cryptojacking group known as the 8220 Gang (aka Water Sigbin) has a history of leveraging it since early last year to co-opt unpatched devices into a crypto-mining bot...

Cybersecurity researchers have discovered a new cryptojacking campaign that employs vulnerable drivers to disable known security solutions (EDRs) and thwart detection in what's called a Bring Your Own Vulnerable Driver ( BYOVD ) attack. Elastic Security Labs is tracking the campaign under the name REF4578 and the primary payload as GHOSTENGINE. Previous research from Chinese cybersecurity firm Antiy Labs has codenamed the activity as HIDDEN SHOVEL. "GHOSTENGINE leverages vulnerable drivers to terminate and delete known EDR agents that would likely interfere with the deployed and well-known coin miner," Elastic researchers Salim Bitam, Samir Bousseaden, Terrance DeJesus, and Andrew Pease said . "This campaign involved an uncommon amount of complexity to ensure both the installation and persistence of the XMRig miner." It all starts with an executable file ("Tiworker.exe"), which is used to run a PowerShell script that retrieves an obfuscated Power...

The cryptojacking group known as  Kinsing  has demonstrated an ability to continuously evolve and adapt, proving to be a persistent threat by swiftly integrating newly disclosed vulnerabilities to the exploit arsenal and expand its botnet. The  findings  come from cloud security firm Aqua, which described the threat actor as actively orchestrating illicit cryptocurrency mining campaigns since 2019. Kinsing (aka  H2Miner ), a name given to both the malware and the adversary behind it, has consistently expanded its toolkit with new exploits to enroll infected systems in a crypto-mining botnet. It was  first documented  by TrustedSec in January 2020. In recent years, campaigns involving the Golang-based malware have weaponized  various flaws  in  Apache ActiveMQ ,  Apache Log4j ,  Apache NiFi ,  Apache Tomcat ,  Atlassian Confluence ,  Citrix ,  Liferay Portal ,  Linux ,  Openfire ,  Oracle W...

Cybersecurity researchers have discovered an intricate multi-stage attack that leverages invoice-themed phishing decoys to deliver a wide range of malware such as  Venom RAT , Remcos RAT, XWorm, NanoCore RAT, and a stealer that targets crypto wallets. The email messages come with Scalable Vector Graphics (SVG) file attachments that, when clicked, activate the infection sequence, Fortinet FortiGuard Labs  said  in a technical report. The modus operandi is notable for the use of the BatCloak malware obfuscation engine and ScrubCrypt to deliver the malware in the form of obfuscated batch scripts. BatCloak , offered for sale to other threat actors since late 2022, has its foundations in another tool called Jlaive. Its primary function is to load a next-stage payload in a manner that circumvents traditional detection mechanisms. ScrubCrypt, a crypter that was  first documented  by Fortinet in March 2023 in connection with a cryptojacking campaign orchestra...

Bogus installers for Adobe Acrobat Reader are being used to  distribute  a new multi-functional malware dubbed  Byakugan . The starting point of the attack is a PDF file written in Portuguese that, when opened, shows a blurred image and asks the victim to click on a link to download the Reader application to view the content. According to Fortinet FortiGuard Labs, clicking the URL leads to the delivery of an installer ("Reader_Install_Setup.exe") that activates the infection sequence. Details of the campaign were  first disclosed  by the AhnLab Security Intelligence Center (ASEC) last month. The attack chain leverages techniques like DLL hijacking and Windows User Access Control (UAC) bypass to load a malicious dynamic-link library (DLL) file named "BluetoothDiagnosticUtil.dll," which, in turn, loads unleashes the final payload. It also deploys a legitimate installer for a PDF reader like Wondershare PDFelement. The binary is equipped to gather and exfiltra...

A critical security flaw has been disclosed in a popular WordPress plugin called  Ultimate Member  that has more than 200,000 active installations. The vulnerability, tracked as CVE-2024-1071, carries a CVSS score of 9.8 out of a maximum of 10. Security researcher Christiaan Swiers has been credited with discovering and reporting the flaw. In an advisory published last week, WordPress security company Wordfence  said  the plugin is "vulnerable to SQL Injection via the 'sorting' parameter in versions 2.1.3 to 2.8.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query." As a result, unauthenticated attackers could take advantage of the flaw to append additional SQL queries into already existing queries and extract sensitive data from the database. It's worth noting that the issue only affects users who have checked the "Enable custom table for usermeta" option in the plugin settings. ...

A novel malware campaign has been observed targeting Redis servers for initial access with the ultimate goal of mining cryptocurrency on compromised Linux hosts. "This particular campaign involves the use of a number of novel system weakening techniques against the data store itself," Cado security researcher Matt Muir  said  in a technical report. The cryptojacking attack is facilitated by a malware codenamed Migo, a Golang ELF binary that comes fitted with compile-time obfuscation and the ability to persist on Linux machines. The cloud security company said it detected the campaign after it identified an "unusual series of commands" targeting its Redis honeypots that are engineered to lower security defenses by disabling the following configuration options - protected-mode   replica-read-only aof-rewrite-incremental-fsync , and rdb-save-incremental-fsync It's suspected that these options are turned off in order to send additional commands to the Re...