Cyber Defense | Breaking Cybersecurity News | The Hacker News

A joint advisory issued by Australia, Canada, New Zealand, and the U.S. has warned of a broad cyber espionage campaign undertaken by People's Republic of China (PRC)-affiliated threat actors targeting telecommunications providers. "Identified exploitations or compromises associated with these threat actors' activity align with existing weaknesses associated with victim infrastructure; no novel activity has been observed," government agencies said . U.S. officials told Tuesday that the threat actors are still lurking inside U.S. telecommunications networks about six months after an investigation into the intrusions commenced. The attacks have been attributed to a nation-state group from China referred to as Salt Typhoon, which overlaps with activities tracked as Earth Estries, FamousSparrow, GhostEmperor, and UNC2286. The group is known to be active since at least 2020, with some of the artifacts developed as early as 2019. Last week, T-Mobile acknowledged that...

Multi-stage cyber attacks, characterized by their complex execution chains, are designed to avoid detection and trick victims into a false sense of security. Knowing how they operate is the first step to building a solid defense strategy against them. Let's examine real-world examples of some of the most common multi-stage attack scenarios that are active right now. URLs and Other Embedded Content in Documents Attackers frequently hide malicious links within seemingly legitimate documents, such as PDFs or Word files. Upon opening the document and clicking the embedded link, users are directed to a malicious website. These sites often employ deceptive tactics to get the victim to download malware onto their computer or share their passwords. Another popular type of embedded content is QR codes. Attackers conceal malicious URLs within QR codes and insert them into documents. This strategy forces users to turn to their mobile devices to scan the code, which then directs them to ph...

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As a relatively new security category, many security operators and executives I've met have asked us "What are these Automated Security Validation (ASV) tools?" We've covered that pretty extensively in the past, so today, instead of covering the " What is ASV?" I wanted to address the " Why ASV?" question. In this article, we'll cover some common use cases and misconceptions of how people misuse and misunderstand ASV tools daily (because that's a lot more fun). To kick things off, there's no place to start like the beginning. Automated security validation tools are designed to provide continuous, real-time assessment of an organization's cybersecurity defenses. These tools are continuous and use exploitation to validate defenses like EDR, NDR, and WAFs. They're more in-depth than vulnerability scanners because they use tactics and techniques that you'll see in manual penetration tests. Vulnerability scanners won't relay hashes or combine vulnerabilities to further attacks, whic...

Budget season is upon us, and everyone in your organization is vying for their slice of the pie. Every year, every department has a pet project that they present as absolutely essential to profitability, business continuity, and quite possibly the future of humanity itself. And no doubt that some of these actually may be mission critical. But as cybersecurity professionals, we understand that the rollout of a viable CTEM ( Continuous Threat Exposure Management ) program actually is . In any year, cybersecurity investments are tough budgetary sells – they're hard to quantify and don't always clearly drive revenues or cut costs. In today's belt-tightening climate, all the more so. Even though cybersecurity budgets will likely grow this year according to Forrester, it's still important to make sure today that CTEM doesn't slip down the budget priority list.  In this article, we'll discuss how to keep CTEM on the budgetary radar. But First – Here are Some Reasons Why CTEM is Obje...

Cybersecurity researchers have discovered a new version of a well-known Android malware family dubbed FakeCall that employs voice phishing (aka vishing) techniques to trick users into parting with their personal information. "FakeCall is an extremely sophisticated Vishing attack that leverages malware to take almost complete control of the mobile device, including the interception of incoming and outgoing calls," Zimperium researcher Fernando Ortega said in a report published last week. "Victims are tricked into calling fraudulent phone numbers controlled by the attacker and mimicking the normal user experience on the device." FakeCall, also tracked under the names FakeCalls and Letscall, has been the subject of multiple analyses by Kaspersky, Check Point , and ThreatFabric since its emergence in April 2022. Previous attack waves have primarily targeted mobile users in South Korea. The names of the malicious package names, i.e., dropper apps, bearing the ma...

Did you know that advanced threat actors can infiltrate the identity systems of major organizations and extract sensitive data within days? It's a chilling reality, becoming more common and concerning by the day. These attackers exploit vulnerabilities in SaaS and cloud environments, using compromised identities to move laterally within networks, causing widespread damage. Cybersecurity and IT professionals now face an uphill battle against these sophisticated threats. Traditional security measures are proving insufficient, leaving organizations vulnerable to data breaches, financial losses, and reputational harm. This webinar provides crucial insights and actionable strategies to help safeguard your organization against these evolving threats. Join us to hear from a renowned expert with firsthand experience in cyber defense. Ian Ahl, SVP of P0 Labs and former Head of Advanced Practices at Mandiant, brings extensive experience from responding to hundreds of breaches. He will shar...

Cybersecurity researchers have discovered an improved version of an Apple iOS spyware called LightSpy that not only expands on its functionality, but also incorporates destructive capabilities to prevent the compromised device from booting up. "While the iOS implant delivery method closely mirrors that of the macOS version, the post-exploitation and privilege escalation stages differ significantly due to platform differences," ThreatFabric said in an analysis published this week. LightSpy, first documented in 2020 as targeting users in Hong Kong, is a modular implant that employs a plugin-based architecture to augment its capabilities and allow it to capture a wide range of sensitive information from an infected device. Attack chains distributing the malware leverage known security flaws in Apple iOS and macOS to trigger a WebKit exploit that drops a file with the extension ".PNG," but is actually a Mach-O binary responsible for retrieving next-stage payloads...

Threat actors linked to North Korea have been implicated in a recent incident that deployed a known ransomware family called Play, underscoring their financial motivations. The activity, observed between May and September 2024, has been attributed to a threat actor tracked as Jumpy Pisces , which is also known as Andariel, APT45, DarkSeoul, Nickel Hyatt, Onyx Sleet (formerly Plutonium), Operation Troy, Silent Chollima, and Stonefly. "We believe with moderate confidence that Jumpy Pisces, or a faction of the group, is now collaborating with the Play ransomware group," Palo Alto Networks Unit 42 said in a new report published today. "This incident is significant because it marks the first recorded collaboration between the Jumpy Pisces North Korean state-sponsored group and an underground ransomware network." Andariel, active since at least 2009, is affiliated with North Korea's Reconnaissance General Bureau (RGB). It has been previously observed deploying ...

Sherlock Holmes is famous for his incredible ability to sort through mounds of information; he removes the irrelevant and exposes the hidden truth. His philosophy is plain yet brilliant: "When you have eliminated the impossible, whatever remains, however improbable, must be the truth." Rather than following every lead, Holmes focuses on the details that are needed to move him to the solution. In cybersecurity, exposure validation mirrors Holmes' approach: Security teams are usually presented with an overwhelming list of vulnerabilities, yet not every vulnerability presents a real threat. Just as Holmes discards irrelevant clues, security teams must eliminate exposures that are unlikely to be exploited or do not pose significant risks. Exposure validation (sometimes called Adversarial Exposure Validation) enables teams to concentrate on the most significant issues and minimize distractions. Similar to Holmes' deductive reasoning, validation of exposures directs organizations towa...

A government entity and a religious organization in Taiwan were the target of a China-linked threat actor known as Evasive Panda that infected them with a previously undocumented post-compromise toolset codenamed CloudScout. "The CloudScout toolset is capable of retrieving data from various cloud services by leveraging stolen web session cookies," ESET security researcher Anh Ho said . "Through a plugin, CloudScout works seamlessly with MgBot, Evasive Panda's signature malware framework." The use of the .NET-based malware tool, per the Slovak cybersecurity company, was detected between May 2022 and February 2023. It incorporates 10 different modules, written in C#, out of which three are meant for stealing data from Google Drive, Gmail, and Outlook. The purpose of the remaining modules remains unknown. Evasive Panda, also tracked as Bronze Highland, Daggerfly, and StormBamboo, is a cyber espionage group that has a track record of striking various entitie...

Cybersecurity researchers have discovered an advanced version of the Qilin ransomware sporting increased sophistication and tactics to evade detection. The new variant is being tracked by cybersecurity firm Halcyon under the moniker Qilin.B. "Notably, Qilin.B now supports AES-256-CTR encryption for systems with AESNI capabilities, while still retaining Chacha20 for systems that lack this support," the Halcyon Research Team said in a report shared with The Hacker News. "Additionally, RSA-4096 with OAEP padding is used to safeguard encryption keys, making file decryption without the attacker's private key or captured seed values impossible." Qilin, also known as Agenda , first came to the attention of the cybersecurity community in July/August 2022, with initial versions written in Golang before switching to Rust. A May 2023 report from Group-IB revealed that the ransomware-as-a-service (RaaS) scheme allows its affiliates to anywhere between 80% to 85% of ...

Two malware families that suffered setbacks in the aftermath of a coordinated law enforcement operation called Endgame have resurfaced as part of new phishing campaigns. Bumblebee and Latrodectus , which are both malware loaders, are designed to steal personal data, along with downloading and executing additional payloads onto compromised hosts. Tracked under the names BlackWidow, IceNova, Lotus, or Unidentified 111, Latrodectus, is also considered to be a successor to IcedID owing to infrastructure overlaps between the two malware families. It has been used in campaigns associated with two initial access brokers (IABs) known as TA577 (aka Water Curupira) and TA578. In May 2024, a coalition of European countries said it dismantled over 100 servers linked to several malware strains such as IcedID (and, by extension, Latrodectus), SystemBC, PikaBot, SmokeLoader, Bumblebee, and TrickBot. "Although Latrodectus was not mentioned in the operation, it was also affected and its ...

Pentest Checklists Are More Important Than Ever Given the expanding attack surface coupled with the increasing sophistication of attacker tactics and techniques, penetration testing checklists have become essential for ensuring thorough assessments across an organization's attack surface, both internal and external. By providing a structured approach, these checklists help testers systematically uncover vulnerabilities in various assets like networks, applications, APIs, and systems. They ensure no critical area is overlooked and guide the testing process, making it more efficient and effective at identifying security weaknesses that could be exploited by attackers. A pentest checklist essentially leaves no stone unturned and is a detailed and comprehensive list of every type of vulnerability in which to simulate an attack against. Each asset being tested, however, requires a different pentest checklist tailored to its specific characteristics and risks. For example, a checklist fo...