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Cybersecurity researchers are calling attention to a new type of credential phishing scheme that ensures that the stolen information is associated with valid online accounts. The technique has been codenamed precision-validating phishing by Cofense, which it said employs real-time email validation so that only a select set of high-value targets are served the fake login screens. "This tactic not only gives the threat actors a higher success rate on obtaining usable credentials as they only engage with a specific pre-harvested list of valid email accounts," the company said . Unlike "spray-and-pray" credential harvesting campaigns that typically involve the bulk distribution of spam emails to obtain victims' login information in an indiscriminate fashion, the latest attack tactic takes spear-phishing to the next level by only engaging with email addresses that attackers have verified as active, legitimate, and high-value. In this scenario, the email address...

The Chinese threat actor known as FamousSparrow has been linked to a cyber attack targeting a trade group in the United States and a research institute in Mexico to deliver its flagship backdoor SparrowDoor and ShadowPad. The activity, observed in July 2024, marks the first time the hacking crew has deployed ShadowPad , a malware widely shared by Chinese state-sponsored actors. "FamousSparrow deployed two previously undocumented versions of the SparrowDoor backdoor, one of them modular," ESET said in a report shared with The Hacker News. "Both versions constitute considerable progress over previous ones and implement parallelization of commands." FamousSparrow was first documented by the Slovak cybersecurity company in September 2021 in connection with a series of cyber attacks aimed at hotels, governments, engineering companies, and law firms with SparrowDoor, an implant exclusively used by the group. Since then, there have been reports of the adversarial...

Opposition activists in Belarus as well as Ukrainian military and government organizations are the target of a new campaign that employs malware-laced Microsoft Excel documents as lures to deliver a new variant of PicassoLoader .  The threat cluster has been assessed to be an extension of a long-running campaign mounted by a Belarus-aligned threat actor dubbed Ghostwriter (aka Moonscape, TA445, UAC-0057, and UNC1151) since 2016. It's known to align with Russian security interests and promote narratives critical of NATO. "The campaign has been in preparation since July-August 2024 and entered the active phase in November-December 2024," SentinelOne researcher Tom Hegel said in a technical report shared with The Hacker News. "Recent malware samples and command-and-control (C2) infrastructure activity indicate that the operation remains active in recent days." The starting point of the attack chain analyzed by the cybersecurity company is a Google Drive shar...

Cybersecurity researchers have shed light on a new Golang-based backdoor that uses Telegram as a mechanism for command-and-control (C2) communications. Netskope Threat Labs, which detailed the functions of the malware, described it as possibly of Russian origin. "The malware is compiled in Golang and once executed it acts like a backdoor," security researcher Leandro Fróes said in an analysis published last week. "Although the malware seems to still be under development it is completely functional." Once launched, the backdoor is designed to check if it's running under a specific location and using a specific name – "C:\Windows\Temp\svchost.exe" – and if not, it reads its own contents, writes them to that location, and creates a new process to launch the copied version and terminate itself. A notable aspect of the malware is that it uses an open-source library that offers Golang bindings for the Telegram Bot API for C2 purposes. This involves...

Microsoft is calling attention to an emerging threat cluster it calls Storm-2372 that has been attributed to a new set of cyber attacks aimed at a variety of sectors since August 2024. The attacks have targeted government, non-governmental organizations (NGOs), information technology (IT) services and technology, defense, telecommunications, health, higher education, and energy/oil and gas sectors in Europe, North America, Africa, and the Middle East.  The threat actor, assessed with medium confidence to be aligned with Russian interests, victimology, and tradecraft, has been observed targeting users via messaging apps like WhatsApp, Signal, and Microsoft Teams by falsely claiming to be a prominent person relevant to the target in an attempt to build trust. "The attacks use a specific phishing technique called 'device code phishing' that tricks users to log into productivity apps while Storm-2372 actors capture the information from the log in (tokens) that they can us...

Gcore's latest DDoS Radar report analyzes attack data from Q3–Q4 2024, revealing a 56% YoY rise in the total number of DDoS attacks with the largest attack peaking at a record 2 Tbps. The financial services sector saw the most dramatic increase, with a 117% rise in attacks, while gaming remained the most-targeted industry. This period's findings emphasize the need for robust, adaptive DDoS mitigation as attacks become more precise and frequent. Let's dive into the numbers. Key takeaways: the future of DDoS defense Here are the four key takeaways from Gcore Radar: DDoS attacks are increasing in volume and sophistication. The 17% growth in total attacks and new peak volume of 2 Tbps highlight the need for advanced protection. Financial services face growing risks. With a 117% increase in attacks, this sector requires heightened security measures. Shorter, high-intensity attacks are now the norm. Traditional mitigation approaches must adapt to rapid burst attacks that can evad...

Threat actors have observed the increasingly common ClickFix technique to deliver a remote access trojan named NetSupport RAT since early January 2025. NetSupport RAT, typically propagated via bogus websites and fake browser updates, grants attackers full control over the victim's host, allowing them to monitor the device's screen in real-time, control the keyboard and mouse, upload and download files, and launch and execute malicious commands. Originally known as NetSupport Manager, it was developed as a legitimate remote IT support program, but has since been repurposed by malicious actors to target organizations and capture sensitive information, including screenshots, audio, video, and files. "ClickFix is a technique used by threat actors to inject a fake CAPTCHA webpage on compromised websites, instructing users to follow certain steps to copy and execute malicious PowerShell commands on their host to download and run malware payloads," eSentire said in an...

Bogus websites advertising Google Chrome have been used to distribute malicious installers for a remote access trojan called ValleyRAT. The malware, first detected in 2023, is attributed to a threat actor tracked as Silver Fox, with prior attack campaigns primarily targeting Chinese-speaking regions like Hong Kong, Taiwan, and Mainland China. "This actor has increasingly targeted key roles within organizations—particularly in finance, accounting, and sales department — highlighting a strategic focus on high-value positions with access to sensitive data and systems," Morphisec researcher Shmuel Uzan said in a report published earlier this week. Early attack chains have been observed delivering ValleyRAT alongside other malware families such as Purple Fox and Gh0st RAT, the latter of which has been extensively used by various Chinese hacking groups . As recently as last month, counterfeit installers for legitimate software have served as a distribution mechanism for t...

The Council of the European Union has sanctioned three individuals for allegedly carrying out "malicious cyber activities" against Estonia. The three Russian nationals – Nikolay Alexandrovich Korchagin, Vitaly Shevchenko, and Yuriy Fedorovich Denisov – are officers of the General Staff of the Armed Forces of the Russian Federation (GRU) Unit 29155, it said. Per the council decision, all the individuals are said to be responsible for cyber attacks against computer systems with the aim of collecting data from the data systems of multiple institutions with an aim to gain insights into the cyber security policy of Estonia. "The cyber-attacks granted attackers unauthorized access to classified information and sensitive data stored within several government ministries — including Economic Affairs and Communications, Social Affairs, and Foreign Affairs — leading to the theft of thousands of confidential documents," per the Council . This included business secrets, h...

The new Trump administration has terminated all memberships of advisory committees that report to the Department of Homeland Security (DHS).  "In alignment with the Department of Homeland Security's (DHS) commitment to eliminating the misuse of resources and ensuring that DHS activities prioritize our national security, I am directing the termination of all current memberships on advisory committees within DHS, effective immediately," Acting Secretary Benjamine C. Huffman said in a January 20, 2025, memo. "Future committee activities will be focused solely on advancing our critical mission to protect the homeland and support DHS's strategic priorities." This includes members of the Cybersecurity and Infrastructure Security Agency's (CISA) Cyber Safety Review Board (CSRB), which last year issued a scathing report excoriating Microsoft for a "cascade" of avoidable errors that led to its infrastructure being abused by a China-based nation-st...

Cybersecurity researchers are calling attention to a series of cyber attacks that have targeted Chinese-speaking regions like Hong Kong, Taiwan, and Mainland China with a known malware called ValleyRAT. The attacks leverage a multi-stage loader dubbed PNGPlug to deliver the ValleyRAT payload, Intezer said in a technical report published last week. The infection chain commences with a phishing page that's designed to encourage victims to download a malicious Microsoft Installer (MSI) package disguised as legitimate software.  Once executed, the installer deploys a benign application to avoid arousing suspicion, while also stealthily extracting an encrypted archive containing the malware payload. "The MSI package uses the Windows Installer's CustomAction feature, enabling it to execute malicious code, including running an embedded malicious DLL that decrypts the archive (all.zip) using a hardcoded password 'hello202411' to extract the core malware components,...

The Threat actor known as DoNot Team has been linked to a new Android malware as part of highly targeted cyber attacks. The artifacts in question, named Tanzeem (meaning "organization" in Urdu) and Tanzeem Update, were spotted in October and December 2024 by cybersecurity company Cyfirma. The apps in question have been found to incorporate identical functions, barring minor modifications to the user interface. "Although the app is supposed to function as a chat application, it does not work once installed, shutting down after the necessary permissions are granted," Cyfirma noted in a Friday analysis. "The app's name suggests that it is designed to target specific individuals or groups both inside and outside the country." DoNot Team, also tracked as APT-C-35, Origami Elephant, SECTOR02, and Viceroy Tiger, is a hacking group believed to be of Indian origin, with historical attacks leveraging spear-phishing emails and Android malware families to...

The U.S. Treasury Department's Office of Foreign Assets Control (OFAC) has imposed sanctions against a Chinese cybersecurity company and a Shanghai-based cyber actor for their alleged links to the Salt Typhoon group and the recent compromise of the federal agency. "People's Republic of China-linked (PRC) malicious cyber actors continue to target U.S. government systems, including the recent targeting of Treasury's information technology (IT) systems, as well as sensitive U.S. critical infrastructure," the Treasury said in a press release. The sanctions target Yin Kecheng, who is assessed to have been a cyber actor for over a decade and affiliated with China's Ministry of State Security (MSS). Kecheng, per the Treasury, was associated with the breach of its own network that came to light earlier this month. The incident involved a hack of BeyondTrust's systems that allowed the threat actors to infiltrate some of the company's Remote Support SaaS inst...

Mongolia, Taiwan, Myanmar, Vietnam, and Cambodia have been targeted by the China-nexus RedDelta threat actor to deliver a customized version of the PlugX backdoor between July 2023 and December 2024. "The group used lure documents themed around the 2024 Taiwanese presidential candidate Terry Gou, the Vietnamese National Holiday, flood protection in Mongolia, and meeting invitations, including an Association of Southeast Asian Nations (ASEAN) meeting," Recorded Future's Insikt Group said in a new analysis. It's believed that the threat actor compromised the Mongolian Ministry of Defense in August 2024 and the Communist Party of Vietnam in November 2024. It's also said to have targeted various victims in Malaysia, Japan, the United States, Ethiopia, Brazil, Australia, and India from September to December 2024. RedDelta, active since at least 2012, is the moniker assigned to a state-sponsored threat actor from China. It's also tracked by the cybersecurity co...

2024 had its fair share of high-profile cyber attacks, with companies as big as Dell and TicketMaster falling victim to data breaches and other infrastructure compromises. In 2025, this trend will continue. So, to be prepared for any kind of malware attack, every organization needs to know its cyber enemy in advance. Here are 5 common malware families that you can start preparing to counter right now. Lumma Lumma is a widely available malware designed to steal sensitive information. It has been openly sold on the Dark Web since 2022. This malware can effectively collect and exfiltrate data from targeted applications, including login credentials, financial information, and personal details. Lumma is regularly updated to enhance its capabilities. It can log detailed information from compromised systems, such as browsing history and cryptocurrency wallet data. It can be used to install other malicious software on infected devices. In 2024, Lumma was distributed through various methods...