Advanced Persistent Threat | Breaking Cybersecurity News | The Hacker News

Microsoft has released patches to fix 67 security flaws , including one zero-day bug in Web Distributed Authoring and Versioning (WebDAV) that it said has come under active exploitation in the wild. Of the 67 vulnerabilities, 11 are rated Critical and 56 are rated Important in severity. This includes 26 remote code execution flaws, 17 information disclosure flaws, and 14 privilege escalation flaws. The patches are in addition to 13 shortcomings addressed by the company in its Chromium-based Edge browser since the release of last month's Patch Tuesday update . The vulnerability that has been weaponized in real-world attacks concerns a remote code execution in WebDAV ( CVE-2025-33053 , CVSS score: 8.8) that can be triggered by deceiving users into clicking on a specially crafted URL. The tech giant credited Check Point researchers Alexandra Gofman and David Driker for discovering and reporting the bug. It's worth mentioning that CVE-2025-33053 is the first zero-day vulnerab...

The threat actor known as Rare Werewolf (formerly Rare Wolf) has been linked to a series of cyber attacks targeting Russia and the Commonwealth of Independent States (CIS) countries. "A distinctive feature of this threat is that the attackers favor using legitimate third-party software over developing their own malicious binaries," Kaspersky said . "The malicious functionality of the campaign described in this article is implemented through command files and PowerShell scripts." The intent of the attacks is to establish remote access to compromised hosts, and siphon credentials, and deploy the XMRig cryptocurrency miner. The activity impacted hundreds of Russian users spanning industrial enterprises and engineering schools, with a smaller number of infections also recorded in Belarus and Kazakhstan. Rare Werewolf , also known by the names Librarian Ghouls and Rezet, is the moniker assigned to an advanced persistent threat (APT) group that has a track record of...

A critical infrastructure entity within Ukraine was targeted by a previously unseen data wiper malware named PathWiper, according to new findings from Cisco Talos. "The attack was instrumented via a legitimate endpoint administration framework, indicating that the attackers likely had access to the administrative console, that was then used to issue malicious commands and deploy PathWiper across connected endpoints," researchers Jacob Finn, Dmytro Korzhevin, and Asheer Malhotra said in an analysis published Thursday. The attack is assessed to be the work of a Russia-nexus advanced persistent threat (APT) actor based on the tradecraft observed and the overlapping capabilities with destructive malware used in attacks against Ukraine. Talos said the commands issued by the administrative tool's console were received by its client running on the victim endpoints and then executed as a batch (BAT) file. The BAT file, in turn, consisted of a command to run a malicious Visu...

The threat actor known as Bitter has been assessed to be a state-backed hacking group that's tasked with gathering intelligence that aligns with the interests of the Indian government. That's according to new findings jointly published by Proofpoint and Threatray in an exhaustive two-part analysis. "Their diverse toolset shows consistent coding patterns across malware families, particularly in system information gathering and string obfuscation," researchers Abdallah Elshinbary, Jonas Wagner, Nick Attfield, and Konstantin Klinger said. Bitter, also known as APT-C-08, APT-Q-37, Hazy Tiger, Orange Yali, T-APT-17, and TA397, has a history of focusing primarily on South Asian entities , with select intrusions also targeting China, Saudi Arabia, and South America. In December 2024, evidence emerged of the threat actor's targeting of Turkey using malware families such as WmRAT and MiyaRAT, indicating a gradual geographical expansion. Stating that Bitter fr...

Cybersecurity researchers have disclosed that a threat actor codenamed ViciousTrap has compromised nearly 5,300 unique network edge devices across 84 countries and turned them into a honeypot-like network. The threat actor has been observed exploiting a critical security flaw impacting Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers (CVE-2023-20118) to corral them into a set of honeypots en masse. A majority of the infections are located in Macau, with 850 compromised devices.

Threat hunters have exposed the tactics of a China-aligned threat actor called UnsolicitedBooker that targeted an unnamed international organization in Saudi Arabia with a previously undocumented backdoor dubbed MarsSnake. ESET, which first discovered the hacking group's intrusions targeting the entity in March 2023 and again a year later, said the activity leverages spear-phishing emails using flight tickets as lures to infiltrate targets of interest. "UnsolicitedBooker sends spear-phishing emails, generally with a flight ticket as the decoy, and its targets include governmental organizations in Asia, Africa, and the Middle East," the company said in its latest APT Activity Report for the period ranging from October 2024 to March 2025. Attacks mounted by the threat actor are characterized by the use of backdoors like Chinoxy, DeedRAT, Poison Ivy, and BeRAT, which are widely used by Chinese hacking crews. UnsolicitedBooker is assessed to share overlaps with a clu...

The nation-state threat actor known as MirrorFace has been observed deploying malware dubbed ROAMINGMOUSE as part of a cyber espionage campaign directed against government agencies and public institutions in Japan and Taiwan. The activity, detected by Trend Micro in March 2025, involved the use of spear-phishing lures to deliver an updated version of a backdoor called ANEL. "The ANEL file from the 2025 campaign discussed in this blog implemented a new command to support an execution of BOF (Beacon Object File) in memory," security researcher Hara Hiroaki said . "This campaign also potentially leveraged SharpHide to launch the second stage backdoor NOOPDOOR." The China-aligned threat actor, also known as Earth Kasha, is assessed to be a sub-cluster within APT10. In March 2025, ESET shed light on a campaign referred to as Operation AkaiRyū that targeted a diplomatic organization in the European Union in August 2024 with ANEL (aka UPPERCUT). The targeting of v...

A China-aligned advanced persistent threat (APT) group called TheWizards has been linked to a lateral movement tool called Spellbinder that can facilitate adversary-in-the-middle (AitM) attacks. "Spellbinder enables adversary-in-the-middle (AitM) attacks, through IPv6 stateless address autoconfiguration ( SLAAC ) spoofing , to move laterally in the compromised network, intercepting packets and redirecting the traffic of legitimate Chinese software so that it downloads malicious updates from a server controlled by the attackers," ESET researcher Facundo Muñoz said in a report shared with The Hacker News. The attack paves the way for a malicious downloader that's delivered by hijacking the software update mechanism associated with Sogou Pinyin. The downloader then acts as a conduit to drop a modular backdoor codenamed WizardNet. This is not the first time Chinese threat actors have abused Sogou Pinyin's software update process to deliver their own malware. In Janu...

Cybersecurity researchers have shed light on a Russian-speaking cyber espionage group called Nebulous Mantis that has deployed a remote access trojan called RomCom RAT since mid-2022. RomCom "employs advanced evasion techniques, including living-off-the-land (LOTL) tactics and encrypted command and control (C2) communications, while continuously evolving its infrastructure – leveraging bulletproof hosting to maintain persistence and evade detection," Swiss cybersecurity company PRODAFT said in a report shared with The Hacker News. Nebulous Mantis, also tracked by the cybersecurity community under the names CIGAR , Cuba , Storm-0978, Tropical Scorpius, UAC-0180, UNC2596 , and Void Rabisu , is known to target critical infrastructure, government agencies, political leaders, and NATO-related defense organizations. Attack chains mounted by the group typically involve the use of spear-phishing emails with weaponized document links to distribute RomCom RAT. The domains and com...

Government and telecommunications sectors in Southeast Asia have become the target of a "sophisticated" campaign undertaken by a new advanced persistent threat (APT) group called Earth Kurma since June 2024. The attacks, per Trend Micro, have leveraged custom malware, rootkits, and cloud storage services for data exfiltration. The Philippines, Vietnam, Thailand, and Malaysia are among the prominent targets. "This campaign poses a high business risk due to targeted espionage, credential theft, persistent foothold established through kernel-level rootkits, and data exfiltration via trusted cloud platforms," security researchers Nick Dai and Sunny Lu said in an analysis published last week. The threat actor's activities date back to November 2020, with the intrusions primarily relying on services like Dropbox and Microsoft OneDrive to siphon sensitive data using tools like TESDAT and SIMPOBOXSPY. Two other noteworthy malware families in its arsenal include r...

The China-linked threat actor known as Mustang Panda has been attributed to a cyber attack targeting an unspecified organization in Myanmar with previously unreported tooling, highlighting continued effort by the threat actors to increase the sophistication and effectiveness of their malware. This includes updated versions of a known backdoor called TONESHELL , as well as a new lateral movement tool dubbed StarProxy, two keyloggers codenamed PAKLOG, CorKLOG, and an Endpoint Detection and Response (EDR) evasion driver referred to as SplatCloak . "TONESHELL, a backdoor used by Mustang Panda, has been updated with changes to its FakeTLS command-and-control (C2) communication protocol as well as to the methods for creating and storing client identifiers," Zscaler ThreatLabz researcher Sudeep Singh said in a two-part analysis . Mustang Panda, also known as BASIN, Bronze President, Camaro Dragon, Earth Preta, HoneyMyte, and RedDelta, is a China-aligned state-sponsored threat ...

Cybersecurity researchers have shed light on a new China-linked threat actor called Earth Alux that has targeted various key sectors such as government, technology, logistics, manufacturing, telecommunications, IT services, and retail in the Asia-Pacific (APAC) and Latin American (LATAM) regions. "The first sighting of its activity was in the second quarter of 2023; back then, it was predominantly observed in the APAC region," Trend Micro researchers Lenart Bermejo, Ted Lee, and Theo Chen said in a technical report published Monday. "Around the middle of 2024, it was also spotted in Latin America." The primary targets of the adversarial collective span countries such as Thailand, the Philippines, Malaysia, Taiwan, and Brazil. The infection chains begin with the exploitation of vulnerable services in internet-exposed web applications, using them to drop the Godzilla web shell for facilitating the deployment of additional payloads, including backdoors dubbed VA...