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Cyware Daily Threat Intelligence

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Daily Threat Briefing • Dec 12, 2022

A new attack campaign compromising internet-connected devices has come to the notice of researchers. Propelled by Russian hackers, it infects devices with the TrueBot malware downloader, which drops Clop ransomware, Grace malware, and other malicious tools. Threats aimed at legal, legal, financial, and travel agencies in Europe and the Middle East peaked with an infamous hack-for-hire group eying to compromise systems using the Janicab malware. The hacker group has a proven track record of harvesting sensitive internal company data and email credentials.

Moving on, numerous vulnerable Pulse Connect Secure hosts were found to be lying in wait for security fixes, even for those released last year. Pulse Connect Secure appliances have been among the top targets of state-sponsored threat actors and other cybercriminal groups.

Top Breaches Reported in the Last 24 Hours

Data exposed by Australian telecom firm

Telstra, Australia, inadvertently published personal identifiers, such as names, numbers, and addresses of over 130,000 customers via Directory Assistance or the White Pages. The incident may have also impacted 30,000 past and present Telstra employees, of which nearly 12,800 are still employed with the telecom giant. Moreover, scammers have jumped on the bandwagon to breach the affected customers.

Top Malware Reported in the Last 24 Hours

Hackers Silence-ing through TrueBot

Russian-speaking hacking group Silence dropped the TrueBot malware downloader on over 1,500 systems worldwide to deploy their set of hacking tools, including Grace malware, Cobalt Strike, Teleport, and Cl0p ransomware. Teleport is a new custom data leakage tool created by the group. It uses Truebot downloader to infect systems with malicious code. According to Cisco Talos, the hacker group has used different attack vectors since August 2020.

Cryptomining chaos against Linux systems

Trend Micro revealed details about a new cryptomining attack involving Linux machines and advanced Chaos RAT. The malware is a Go-compiled binary that can perform a variety of functions, including, opening a reverse shell, accessing files (upload, download, delete), taking screenshots, performing a machine reboot, and more. Hackers use a C2 server, likely located in Hong Kong, to serve Chaos RAT.

Evilnum infects with travel industry with Janicab

Hack-for-hire group Evilnum, aka DeathStalker, targeted legal, financial, and travel sectors in the Middle East and Europe with a more stabilized variant of Janicab malware. The malware uses public services like WordPress and YouTube as dead drop resolvers. The campaign’s victims are located in Egypt, the UAE, Georgia, Saudi Arabia, and the U.K.

Top Vulnerabilities Reported in the Last 24 Hours

Several critical bugs unpatched

Censys, an attack surface management firm, found over 4,400 internet-accessible Pulse Connect Secure appliances affected by at least one known security bug. Of those, about 3,500 of the vulnerable hosts haven’t patched fixes released last year, which addressed six flaws. Pulse Connect Secure devices are still impacted by other critical bugs, such as CVE-2018-5299, CVE-2018-6320, CVE-2019-11510, and CVE-2019-11540.

Top Scams Reported in the Last 24 Hours

Christmas holidays invite smishing scams

Amazon customers in the U.K has started receiving fraudulent text messages creating a sense of urgency regarding account login. The e-Commerce giant has warned shoppers of the scam wherein adversaries attempt to break into users’ accounts by harvesting their personal data and credentials.

Related Threat Briefings

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.

Jan 23, 2025

Cyware Daily Threat Intelligence, January 23, 2025

Cybercriminals are finding new ways to exploit the cloud. The financially driven TRIPLESTRENGTH group has been targeting platforms like Google Cloud and AWS for cryptojacking and ransomware, often leveraging stolen credentials from malware infections. The QakBot loader has a new ally: BackConnect (BC) malware. Researchers uncovered its use in tandem with tools like DarkVNC and KeyHole, bolstering system data theft and remote access capabilities. This innovation is linked to Storm-1811 and the deployment of Black Basta ransomware. AIRASHI, an AISURU botnet variant, has been exploiting zero-day vulnerabilities in Cambium Networks cnPilot routers to deliver DDoS attacks reaching up to 3 Tbps. Its operators flaunt their capabilities on Telegram, with compromised devices found across the globe.

Jan 22, 2025

Cyware Daily Threat Intelligence, January 22, 2025

A covert supply chain attack compromised a South Korean VPN provider, with the China-linked APT group PlushDaemon embedding its SlowStepper backdoor into a malicious installer. Active since 2019, this espionage campaign leverages a sophisticated toolkit, hijacked app updates, and server vulnerabilities to target victims across multiple nations. The Murdoc botnet has emerged as a formidable threat, exploiting vulnerabilities in AVTECH IP cameras and Huawei routers to infect over 1,370 systems in Southeast Asia and Latin America. With its roots in Mirai, this botnet uses shell scripts tailored to IoT architectures, aiming to power massive DDoS campaigns. Oracle’s latest Critical Patch Update addresses 318 vulnerabilities, including a severe flaw in its Agile Framework. With critical risks spanning products like JD Edwards and Communications Routers, organizations are urged to update immediately to mitigate the danger of exploitation.

Jan 21, 2025

Cyware Daily Threat Intelligence, January 21, 2025

From malware campaigns targeting critical infrastructure to vulnerabilities in core networking protocols, threat actors are exploiting trust and technical gaps to infiltrate systems. The MintsLoader campaign targets sectors like energy and law with the StealC malware and the BOINC client, masking malicious actions as legitimate. Meanwhile, the DoNot APT group is using the new Tanzeem Android malware to spy on South Asian government and military entities. Flaws in tunneling protocols put millions of systems at risk of DoS attacks and unauthorized network access, underscoring the need for stronger configurations. Meanwhile, attackers are impersonating CERT-UA using AnyDesk to infiltrate Ukrainian systems under the pretense of a “security audit.” For detailed Cyber Threat Intel, click ‘Read More’.

Jan 20, 2025

Cyware Daily Threat Intelligence, January 20, 2025

In today’s evolving cyber landscape, even natural disasters are becoming fertile ground for exploitation by bad actors. Southern California’s raging wildfires have ignited a parallel wave of phishing scams targeting affected individuals and businesses. Fraudsters are leveraging themes of relief and recovery to propagate bogus donation requests, fake insurance claims, and cryptocurrency fraud schemes. Elsewhere, PHP-based web servers in Indonesia are being hijacked to promote online gambling platforms. Targeting servers running Moodle LMS, attackers are installing rogue plugins, stealing credentials, and deploying Python-based bots to propagate the attack. Meanwhile, a critical flaw in Moxa’s EDS-508A Series Ethernet switches has been patched, addressing vulnerabilities that could grant unauthorized access and disrupt operations. Admins are urged to apply the security patch immediately. For detailed Cyber Threat Intel, click ‘Read More’.