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Cyware Daily Threat Intelligence

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Daily Threat Briefing • Aug 8, 2023

A sophisticated campaign intertwining the TargetCompany ransomware and Remcos RAT has surfaced. Both exhibit enhanced evasive maneuvers to breach systems and ensure persistence. The seamless execution of components within unveils an alarming trend toward multi-layered attacks. It’s ‘Patch Tuesday’ and we have updates from SAP, Siemens, and Schneider Electric. Siemens has issued advisories addressing over 30 security issues, whereas Schneider Electric has released just one advisory notifying customers about a solitary flaw.

Separately, Cisco Talos has moderately attributed a new global ransomware operation to a likely Vietnamese-origin adversary. The ransomware strain, Yashma, can be traced back to Chaos ransomware and features a ransom note reminiscent of WannaCry.

Top Breaches Reported in the Last 24 Hours

Missile manufacturer targeted

An investigation is ongoing within the Russian defense industrial base as North Korean perpetrators targeted missile engineering giant NPO Mashinostroyeniya. Two distinct instances of compromise have emerged: the email server intrusion (attributed to the ScarCruft threat actor) and a Windows backdoor dubbed OpenCarrot (by the Lazarus Group) infiltrating the internal network.

Medical center hit by ransomware attack

Mayanei Hayeshua Medical Center in Bnei Brak, Israel, experienced a ransomware attack that disrupted administrative computer systems. It temporarily shut down outpatient clinics and imaging centers, though the hospital continues to provide care. While the perpetrators remain unknown, this incident underscores the persistent cyber threats faced by Israeli institutions, particularly in the health sector.

Cyberattack disrupts health services

Regional Health Service of the Autonomous Region of Madeira (SESARAM) suffered internal disruptions owing to a cyber incident. The incident's severity has led to the suspension of non-urgent clinical activities, affecting consultations, surgeries, and diagnostic procedures. SESARAM urges individuals to visit the Emergency Service only in cases of clear necessity, and the Regional Health Service will provide updates as the situation unfolds.

Top Malware Reported in the Last 24 Hours

Yashma variant targets multinational organizations

A newly identified strain of Yashma ransomware has raised concerns as it was found targeting organizations across Bulgaria, China, Vietnam, and English-speaking countries since June 4. The Yashma ransomware, a rebranding of the Chaos strain, fetches ransom notes from a controlled GitHub repository through an embedded batch file. The ransom note's eerie resemblance to WannaCry adds to the intrigue, suggesting an effort to cloud attribution.

Stealthy Ransomware and RAT assault

Trend Micro has uncovered a ransomware onslaught orchestrated by TargetCompany ransomware actors, also known as Mallox or Xollam. Employing the elusive BatCloak obfuscator engine, this campaign infiltrates vulnerable systems with Remcos RAT, establishing a foothold on targeted networks. Subsequently, the Remcos RAT masterminds the deployment of TargetCompany ransomware, further concealed within a fully undetectable (FUD) packer.

Top Vulnerabilities Reported in the Last 24 Hours

SAP’s August patch day

SAP has unveiled a series of critical security notes addressing vulnerabilities affecting SAP Message Server, SAP NetWeaver AS ABAP and ABAP Platform, and SAP Host Agent. While a HotNews Note highlighted an OS command injection vulnerability in IS-OIL, another new HotNews Note was dedicated to SAP PowerDesigner, addressing two vulnerabilities affecting client connections to a shared model repository via proxy. SAP PowerDesigner clients must be updated simultaneously to prevent potential issues.

Critical bugs in industrial products

Siemens and Schneider Electric have taken substantial steps to rectify critical vulnerabilities in their industrial products. Siemens published advisories outlining serious weaknesses in Ruggedcom products, including a Crossbow server application with multiple critical and high-severity vulnerabilities. A critical mirror port isolation flaw in Ruggedcom ROS devices was also addressed. Meanwhile, Siemens identified high-severity vulnerabilities across multiple products, emphasizing the potential exploitation via specially crafted files.

Related Threat Briefings

Feb 11, 2025

Cyware Daily Threat Intelligence, February 11, 2025

Hackers are widening their attack surface, and Linux is now in their crosshairs. A new variant of the SystemBC RAT has emerged, stealthily infiltrating Linux environments. Given its history of pairing with ransomware, this development signals a growing threat to corporate systems and cloud infrastructures. Physical access shouldn’t mean instant compromise, but for iPhones and iPads, it briefly did. Apple has rushed to patch a flaw that allowed attackers to disable USB Restricted Mode on locked devices. Designed to prevent unauthorized access, this feature was rendered useless by the vulnerability. Thousands of firewalls meant to protect businesses are instead exposing them to serious risks. Over 12,000 GFI KerioControl firewalls remain unpatched against a critical remote code execution flaw. Despite a fix being available since December, many instances are still vulnerable.

Feb 10, 2025

Cyware Daily Threat Intelligence, February 10, 2025

Cybercriminals are finding new ways to poison the AI supply chain. Researchers uncovered two malicious ML models on Hugging Face, where attackers used corrupted pickle files to smuggle Python malware. This novel technique, dubbed nullifAI, aimed to bypass security scans and establish a backdoor. In another case of SEO manipulation, threat actors hijacked IIS servers in Asia, injecting BadIIS malware to manipulate search results and drive unsuspecting users to illegal gambling sites. Government and university servers in Asian countries were among those exploited. Researchers linked the campaign to DragonRank, a Chinese-speaking group. Patching delays could turn into a disaster. CISA warned that a vulnerability in Trimble Cityworks GIS software is being actively exploited for remote code execution. Even though patches were released, attackers continued taking advantage of unpatched systems, prompting its urgent addition to the KEV catalog.

Feb 7, 2025

Cyware Daily Threat Intelligence, February 07, 2025

North Korean hackers are refining their phishing playbook, now using the forceCopy malware to hijack credentials. The Kimsuky hacking group is targeting victims with deceptive emails containing Windows shortcut files disguised as Microsoft Office or PDF documents. The attack also involves the usage of additional malware. CISA has added critical vulnerabilities to its KEV catalog, signaling an urgent need for patching. The list includes flaws in Microsoft Outlook and Sophos XG Firewall, both carrying a CVSS score of 9.8. Federal agencies have until February 27 to patch these. A long-standing Chinese cyber-espionage group, GreenSpot APT, is running a phishing campaign that preys on users of the popular Chinese email service 163[.]com. The group, which has been active since 2007, has registered fake domains to steal login credentials from government and military personnel

Feb 6, 2025

Cyware Daily Threat Intelligence, February 06, 2025

Cybercriminals are getting more sophisticated, turning search engines into traps. A fake Google ad for Cisco AnyConnect led unsuspecting users to a counterfeit website, mimicking a German university to evade security filters. The fraudulent site redirected victims to a spoofed Cisco download page, pushing NetSupport RAT as the legitimate AnyConnect installer. Russian organizations are under fire as attackers distribute NOVA stealer, a new variant of SnakeLogger, through phishing emails. Advertised on underground forums as MaaS for as little as $50 per month, NOVA is designed for credential theft, keylogging, and clipboard data extraction. Cisco has patched two critical vulnerabilities in its Identity Services Engine, which could allow remote attackers to execute commands and manipulate system configurations. Exploited through specially crafted API requests, these flaws pose significant risks for enterprises using ISE for authentication and network control.

Feb 5, 2025

Cyware Daily Threat Intelligence, February 05, 2025

North Korean hackers are turning fake job interviews into a gateway for cyber espionage. SentinelOne identified new variants of the macOS malware FlexibleFerret, used in the Contagious Interview operation to lure targets with fake job interviews. Victims are tricked into downloading malicious software disguised as virtual meeting tools, allowing attackers to gain control over their systems. Cyberespionage groups are shifting their sights to the backbone of enterprise networks. A newly discovered malware, linked to the DaggerFly APT group, is targeting Linux-based network devices instead of standard endpoints. By hijacking SSH connections and replacing system binaries, the malware ensures long-term persistence while silently extracting sensitive data. A security flaw in AMD processors has raised concerns over hardware-based attacks. This bug could allow attackers with admin access to load malicious microcode, potentially undermining system integrity. This exploit underscores the growing risks of hardware security gaps, where even minor weaknesses can have major consequences.

Feb 4, 2025

Cyware Daily Threat Intelligence, February 04, 2025

Cybercriminals are finding new ways to weaponize everyday tools, and this time, they’re using TryCloudflare to hide their tracks. Researchers uncovered a phishing campaign that stealthily delivers AsyncRAT via Python scripting and cloud tunnels. The attack starts with a Dropbox link leading to a maze of scripts that ultimately drop a harmful payload. Even AI developers aren’t safe from deception. Threat actors have infiltrated PyPI with two malicious packages disguised as legitimate tools for DeepSeek. These fraudulent packages steal sensitive data, from user credentials to API keys, proving once again that trust in open-source repositories can be a double-edged sword. One small vulnerability, one massive risk. Russian cybercriminals exploited a zero-day in 7-Zip to deliver SmokeLoader in attacks on Ukrainian entities. By bypassing Windows Mark-of-the-Web protections, the attackers tricked victims into executing malware-laden files.

Feb 3, 2025

Cyware Daily Threat Intelligence, February 03, 2025

Cybercriminals are exploiting trust and social engineering at scale, preying on unsuspecting victims across industries. The Russian-speaking cybercrime gang Crazy Evil has been linked to over 10 social media scams, tricking users into installing malware like StealC and AMOS. Operating primarily through Telegram, the group specializes in identity fraud, cryptocurrency theft, and info-stealers. A wedding invitation should bring good news, not malware. Hackers in Malaysia and Brunei are targeting users with fake wedding invites spread via WhatsApp and Telegram, tricking them into installing a new Android malware called Tria. The campaign resembles UdangaSteal but focuses on new social engineering tactics. Even the tightest security can come undone with a race condition. Apple patched a critical vulnerability in macOS Sonoma, Sequoia, and iPadOS, which allowed hackers to escalate privileges and run code at the kernel level. Apple fixed the issue by improving memory management, but this serves as another reminder that even the most secure systems need constant vigilance.

Jan 31, 2025

Cyware Daily Threat Intelligence, January 31, 2025

Cybercriminals are sharpening their tactics, and Brazilian financial firms are the latest target. The Coyote banking trojan is on the prowl, using malicious Windows LNK files to execute PowerShell scripts that steal data and compromise systems. Meanwhile, a new browser-based threat is emerging—syncjacking. This attack exploits malicious extensions to hijack browsers, disable security settings, and access stored credentials. In its final stage, attackers gain full control of devices, including cameras and audio, without detection. Speaking of hidden threats, users of Microsoft Ads are being tricked by fraudulent Google ads leading to phishing pages designed to steal their login credentials. This campaign has persisted for two years, slipping past security filters and mimicking Microsoft’s login process with deceptive precision. For detailed Cyber Threat Intel, click ‘Read More’.

Jan 29, 2025

Cyware Daily Threat Intelligence, January 29, 2025

Cybercriminals are refining their tactics, blending deception with persistence to breach defenses. A financially motivated threat actor has been running a phishing email campaign since last year, targeting users in Poland and Germany. The attacks use payloads like Agent Tesla, Snake Keylogger, and a new backdoor named TorNet. Zyxel CPE Series devices are under siege as researchers uncover an actively exploited zero-day vulnerability. This flaw allows attackers to execute remote commands, potentially leading to system takeovers, data loss, and network intrusions. The attacks, originating primarily from Taiwan, have compromised over 1,500 devices, sparking urgent calls for users to apply security updates. Phishing scams continue to evolve, with a new campaign exploiting PDF documents to steal Amazon Prime credentials. Victims receive emails warning of an expired membership, leading them to a fake Amazon login page where they unknowingly hand over personal and credit card information.

Jan 28, 2025

Cyware Daily Threat Intelligence, January 28, 2025

Even the sleekest systems have their cracks. Apple has patched a critical CoreMedia vulnerability that hackers have already exploited to target devices. The flaw, which impacts how audio and video are processed, had been actively used against earlier versions of iOS prior to iOS 17.2. Apple’s fix is now available for iPhones XS and later, select iPads, and the company’s latest hardware. Security shouldn’t feel like Swiss cheese. Yet, SonicWall’s SMA1000 appliances are under siege, with attackers exploiting a critical vulnerability to install malware without requiring credentials. Despite a patch being available, over 5,000 devices remain exposed, allowing hackers to hijack SSL VPN sessions remotely. Think twice before clicking on that delivery notification. Phishers posing as USPS are sending fraudulent SMS messages claiming a package couldn’t be delivered due to “incomplete address information.” With over 630 phishing pages spanning 50 countries, the campaign targets unsuspecting individuals at an alarming scale. In today’s digital landscape, not all deliveries are worth opening - especially the fraudulent ones.

Jan 27, 2025

Cyware Daily Threat Intelligence, January 27, 2025

Once again proving there’s no honor among thieves, hackers were found preying on script kiddies via a trojanized XWorm RAT builder, compromising over 18,000 devices globally. The fake builder allowed operators to steal data and issue commands through a Telegram-based C2. LTE and 5G networks face a critical challenge as researchers uncover 119 vulnerabilities that could disrupt services or breach core networks. These flaws, linked to buffer overflows and memory corruption, leave mobile users exposed to potential monitoring and targeted attacks. A deceptive malware campaign leverages fake CAPTCHA pages and clipboard hijacking to spread Lumma Stealer across industries in multiple regions. The malware uses advanced evasion tactics to outmaneuver security defenses while stealing sensitive data.

Jan 24, 2025

Cyware Daily Threat Intelligence, January 24, 2025

Hackers are crafting convincing traps by mimicking trusted platforms. Nearly 1,000 fake web pages imitating Reddit and WeTransfer are being used to distribute Lumma Stealer. Fraudsters fake Reddit discussions and provide malicious WeTransfer links, creating an illusion of authenticity. Juniper edge devices are under attack by J-magic, a stealthy malware that activates only when it detects a specific magic packet. Targeting multiple industries J-magic’s reverse shell remains dormant until triggered, enabling covert communications. A flaw in Cloudflare's CDN exposes users’ locations via images sent through apps like Signal and Discord. By exploiting this vulnerability, attackers can pinpoint a target’s location within a 250-mile radius, leveraging Cloudflare's caching system to silently gather data.