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Cyware Daily Threat Intelligence

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Daily Threat Briefing • May 15, 2024

Yet another decade-long attack campaign was unearthed. ESET took the wraps off Ebury botnet's prolonged infiltration of Linux servers, which exceeds 100,000 compromised systems. As noted, attackers’ tactics include SSH credential theft and AitM attacks.

On the vulnerability side, D-Link's DIR-X4860 router is riddled with severe vulnerabilities that enable unauthenticated remote command execution. Exploitation involves bypassing authentication and leveraging a command injection flaw. Watch out for Microsoft's May 2024 Patch Tuesday updates as it addressed dozens of security flaws, including two zero-days exploited in the wild. Critical issues include CVE-2024-30040 and CVE-2024-30051, requiring immediate attention.

Top Malware Reported in the Last 24 Hours

Decade-long botnet campaign uncovered

ESET divulged the extensive infiltration of the Ebury botnet into over 400,000 Linux servers since 2009, with over 100,000 servers still compromised as of late 2023. The sophisticated campaign involved various monetization activities, including spam distribution, web traffic redirection, and credential theft, with actors also engaged in cryptocurrency heists and credit card theft. The attackers employ diverse delivery methods, including SSH credential theft and exploitation of web panel vulnerabilities.

Top Vulnerabilities Reported in the Last 24 Hours

Microsoft addresses 61 security flaws

Microsoft released its Patch Tuesday updates, addressing a total of 61 security vulnerabilities which includes two zero-day issues being actively exploited in the wild. These are a critical flaw in the Windows MSHTML Platform and an elevation of privilege vulnerability in the Windows Desktop Window Manager (DWM) Core Library. These flaws could allow attackers to execute arbitrary code and gain SYSTEM privileges.

Code execution threat in Mozilla products

Multiple vulnerabilities in Mozilla Firefox, Firefox ESR, and Thunderbird were reported, allowing for arbitrary code execution. Exploitation could lead to program installation, data manipulation, or unauthorized account creation. Affected versions include Firefox ESR prior to 115.11, Thunderbird prior to 115.11, and Firefox prior to 126. While no active exploits are reported, users are urged to update to mitigate risks.

D-Link flaws enable RCE

The D-Link EXO AX4800 (DIR-X4860) router is vulnerable to unauthenticated remote command execution. Researchers from SSD Secure Disclosure discovered flaws in the latest firmware version, allowing attackers to gain root access via the Home Network Administration Protocol (HNAP) port. A POC exploit has also been publicly released.

NHS warns of active exploitation of Arcserve bugs

The U.K's NHS alerted organizations about the potential exploitation of vulnerabilities in Arcserve Unified Data Protection (UDP) software, disclosed in March. These include authentication bypass and path traversal flaws, with Tenable rating them ‘critical’ and the Centre for Cybersecurity Belgium emphasizing urgent action. Risks range from data theft to ransomware attacks, necessitating heightened monitoring alongside patching.

Adobe releases critical security updates

Adobe rolled out a series of critical security patches addressing code execution vulnerabilities across various products such as Illustrator, Substance3D Painter, Aero, and Dreamweaver. This update addresses vulnerabilities that could allow malicious actors to execute arbitrary code on affected systems. Users were strongly advised to apply the latest patches to mitigate potential risks.

ICS advisories by multiple organizations

Several major ICS providers have released Patch Tuesday advisories addressing critical vulnerabilities in their products. Siemens, Rockwell Automation, Mitsubishi Electric, and Johnson Controls have all issued advisories detailing vulnerabilities ranging from remote code execution to SQL injection. These vulnerabilities, if exploited, could lead to unauthorized access, privilege escalation, and data tampering. The CISA has also alerted organizations about these vulnerabilities.

Apple addresses Safari zero-day

Apple issued security updates to address a zero-day vulnerability in Safari (CVE-2024-27834) exploited during the Pwn2Own Vancouver hacking competition. The flaw could allow attackers to bypass pointer authentication, potentially leading to RCE. The update is available for macOS Monterey and macOS Ventura, with Safari 17.5 also released for iOS, iPadOS, macOS Sonoma, and visionOS.

VMware fixes multiple flaws including three zero-days

VMware fixed four vulnerabilities in its Workstation and Fusion desktop hypervisors, including three zero-days demonstrated at Pwn2Own Vancouver 2024. These flaws included a use-after-free vulnerability in Bluetooth (CVE-2024-22267) and information disclosure vulnerabilities. Threat actors with local administrative privileges on virtual machines could exploit these issues for code execution or to read privileged information from hypervisor memory.

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Jan 15, 2025

Cyware Daily Threat Intelligence, January 15, 2025

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Jan 14, 2025

Cyware Daily Threat Intelligence, January 14, 2025

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Jan 10, 2025

Cyware Daily Threat Intelligence, January 10, 2025

China-linked RedDelta has intensified its cyber-espionage activities across Asia, targeting government and political entities across multiple countries. The group used sophisticated spear-phishing tactics to deliver a modified PlugX backdoor. Notable breaches include the Mongolian Ministry of Defense and the Communist Party of Vietnam, underscoring RedDelta’s evolving methods and broad geographical reach. In a deceptive twist, threat actors have created a fake PoC exploit tied to a patched Microsoft Windows LDAP vulnerability to lure security researchers. The malicious PoC, hosted on a repository, drops a PowerShell script upon execution, stealing computer information and sending it to an external FTP server. CrowdStrike uncovered a phishing scheme where attackers impersonated the company, offering fake job opportunities to lure victims. Targets were directed to download a fraudulent CRM application, which bypassed sandbox checks to install a Monero miner. The malware operated stealthily in the background, ensuring persistence through startup scripts and registry entries.

Jan 9, 2025

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Malicious actors continue to exploit trusted ecosystems, with researchers uncovering npm packages stealing Solana private keys and exfiltrating them via Gmail. Masquerading as legitimate tools, these packages drain victims' wallets while amplifying their reach through GitHub repositories. Threat actors are actively exploiting a critical flaw in GFI KerioControl firewalls, to achieve remote code execution. Despite a patch released by GFI, attempts to abuse the vulnerability have surged, targeting over 23,800 exposed instances worldwide. Meanwhile, the Fancy Product Designer plugin for WordPress remains vulnerable to critical flaws, including file upload and SQL injection vulnerabilities. With no response from the developer, over 20,000 sites face heightened risk from these exploits.

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Cyware Daily Threat Intelligence, January 08, 2025

The Gayfemboy botnet has emerged as a powerful tool in the Mirai-based arsenal, evolving with zero-day exploits targeting industrial routers and smart home devices. With around 15,000 active bot nodes daily, it uses vulnerabilities in industrial routers to launch high-intensity DDoS attacks exceeding 100 Gbps. A cunning social engineering campaign in the Middle East sees fraudsters posing as government officials to exploit customer trust. Victims are lured into installing remote access software under the guise of resolving purchase complaints. Using tools like RedLine Stealer, the attackers steal credit card details and intercept OTPs. CISA’s KEV catalog now includes critical flaws in Mitel MiCollab and Oracle WebLogic Server, highlighting active exploitation. The vulnerabilities like allow unauthorized access and remote code execution, urging federal agencies to update systems by January 28 to mitigate risks effectively.

Jan 7, 2025

Cyware Daily Threat Intelligence, January 07, 2025

PhishWP, a rogue WordPress plugin, is redefining payment fraud with its ability to mimic trusted platforms. By harvesting card details, one-time passwords, and more in real time, this plugin enables sophisticated phishing attacks. Its arsenal includes browser profiling, obfuscation, and fake confirmation emails, delaying detection while users unknowingly fall victim. Android’s January Security Bulletin underscores the urgency of patching critical vulnerabilities in devices running Android 12 to 15. With flaws enabling remote code execution without permissions, Google’s update addresses risks in System, Framework, and hardware components. Hardware giants MediaTek, HPE, and Dell have issued patches for severe vulnerabilities in their products. MediaTek patched a critical modem flaw, Dell resolved privilege escalation vulnerabilities, and HPE addressed issues in SAN switches.

Jan 6, 2025

Cyware Daily Threat Intelligence, January 06, 2025

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Cyware Daily Threat Intelligence, January 03, 2025

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Cyware Daily Threat Intelligence, January 02, 2025

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Dec 23, 2024

Cyware Daily Threat Intelligence, December 23, 2024

Compromised npm packages are yet another reminder of the fragility of supply chains in the digital age. Threat actors inserted cryptomining malware into popular packages, impacting hundreds of thousands of users before developers patched and re-released them. The malicious code executed via npm's postinstall script, emphasizing the need for vigilance and prompt updates in package management. IBM’s Cognos Analytics platform has been diagnosed with critical vulnerabilities that could undermine system security and expose sensitive data. Flaws like CVE-2024-51466, an Expression Language Injection vulnerability, and CVE-2024-40695, tied to poor file validation, affect several versions of the platform. IBM recommends urgent upgrades to patched versions to safeguard enterprise systems. In the murky world of Phishing-as-a-Service (PhaaS), FlowerStorm has emerged as a dangerous new player, potentially taking over from the now-defunct Rockstar2FA. With majority of its attacks focused on U.S. users, the platform is setting its sights on key sectors, raising fresh alarms for cybersecurity defenders.