Malware | Breaking Cybersecurity News | The Hacker News

A search result isn't always safe. An access request isn't always harmless. And a familiar account doesn't always mean a familiar person is using it. Simple things to remember. Yet a surprising amount of this week's trouble starts right there. Attackers are using fake websites, stolen access, and trusted tools to get into places they shouldn't be. AI is helping them build attacks faster, while also giving them new systems to target. Some intruders are staying hidden even after security holes are fixed. Others are moving stolen money through a maze of transactions. And researchers keep finding small coding mistakes that can cause much bigger problems. Different stories, but much of the trouble comes down to making something dangerous look normal. There is some good news, too. Criminal servers have been seized, and a few defenses are getting stronger. Still, plenty of things are going wrong in ways that shouldn't be this easy. Here's what turned up this w...

Cybersecurity researchers have found that lookalike domains masquerading as artificial intelligence (AI) tools are being used to serve ClickFix -style lures, browser-hijacking malware, and a set of extensions that hijack user searches. This delivery pattern has been codenamed TypoPrompting by Island. "AI-app lookalikes that turn an attempt to reach a familiar tool into a prompt to verify, install or run something else," the cybersecurity company said in a report shared with The Hacker News. In all, the campaign spans 186 bogus domains spanning 27 AI brands, including Anthropic Claude, OpenAI ChatGPT, Google Gemini and Gemini Notebook (formerly NotebookLM), Microsoft Copilot, SpaceXAI Grok, DeepSeek, Mistral, Perplexity, Midjourney, ElevenLabs, Lovable, and Cursor. While one category leads to a ClickFix lure that serves a PowerShell command via a fake Cloudflare verification page, the second route takes unsuspecting users to "Security Check" pages that del...

The ongoing campaign targeting ConnectWise ScreenConnect deployments involves the exploitation of a now-patched critical security flaw in the remote access software, and not a new vulnerability, it has emerged. Blackpoint Cyber's Adversary Pursuit Group (APG), which shared the details with The Hacker News, said the recovered attacker toolkit exploits CVE-2026-84869 (CVSS score: 9.9), an improper privilege management and missing authorization vulnerability that could allow an attacker to file transfer and execute through an active remote session without authorization or host confirmation. The cybersecurity company confirmed that testing against a fully patched ScreenConnect client successfully prevents execution of the exploit's payload. "Our testing confirmed that the exploit targets CVE-2026-84869 and that the existing patch successfully blocks it," APG researchers Sam Decker and Nevan Beal said. "That's an important finding for security teams....

Starting Tuesday, an attacker used stolen credentials for 4,837 GitHub accounts to plant a secret stealer in repositories those accounts could write to, according to Aikido Security, a security software company. The stealer is built to take the secrets and cloud credentials that a repository's CI workflows can reach. It ran in at least 1,806 repositories, where the attacker has likely collected those credentials, the company says. Each attack started with a pull request titled docs: dependency audit notes, opened from a branch named wfx-docs to test whether the account could write to the repository. These test pull requests were opened in 61,764 repositories, and the stealer followed in some of them. In a separate analysis , researchers at SafeDep, which sells software supply chain security tools, counted 8,093 repositories that received malicious commits between 12:46 UTC on Tuesday and 04:36 UTC today. That count covers every repository that received malicious commits, no...

ConnectWise has taken the precautionary step of disabling five third-party extensions in partner environments following reports of unauthorized access . In an advisory posted on its site, the company said there is no evidence that the incident involves a compromise of its infrastructure or a vulnerability in the ScreenConnect software. "Our initial assessment suggests the activity may involve a threat actor's abuse of independent third-party extensions installed in partner environments," it said . "We are continuing to validate this assessment. The initial access method and full scope remain under investigation." ConnectWise has identified about 400 partner environments with at least one of the third-party extensions installed. It also emphasized that the presence of the extensions alone does not indicate or establish compromise. While these extensions provide an API capable of executing remote commands, access to that API is secured by a passphrase c...

Threat actors have been observed targeting Qlik Sense servers to unsuccessfully deliver PowerShell reverse shell commands against multiple environments in October 2026. Cynet's CyOps and Research teams said they identified the suspicious activity in October 2026 against several E.U.-based customers within a narrow window of just over three minutes. The activity has been found to share some level of overlap with a November 2023 campaign documented by Arctic Wolf in which threat actors linked to the CACTUS ransomware operation likely weaponized then-newly-disclosed flaws in Qlik Sense to obtain initial access to target environments. The vulnerabilities in question, which were patched by Qlik Sense in August and September 2023, impact Qlik Sense Enterprise for Windows -

Three distinct threat activity clusters with shared infrastructure and malware code similarities have been observed targeting telecommunications providers, government organizations, military entities, research institutions, and critical infrastructure across Latin America, Asia, and Europe over the past year. Check Point Research is tracking the clusters under the names SilentDelivery , OceanGate , and DarkWire . Although initially assumed to be independent sets of attacks, each with its own backdoors and post-exploitation tooling, they have all been linked through a malware ecosystem called Sparrow. The entity behind the Sparrow framework has been codenamed CopperDragon , and is assessed to be a digital quartermaster developing tools for China-nexus threat actors, including FamousSparrow , Earth Estries , Tropic Trooper , UAT-9244 , and UAT-8302 . "Each cluster employed a different toolset and different initial access techniques, including compromising internet-facing inf...

Cybersecurity researchers have disclosed details of an attack that exploited two now-patched vulnerabilities in AhsayCBS to deliver a Python-based implant. The activity, observed by Huntress in early October 2026, involves the exploitation of a chain comprising CVE-2026-105133 and CVE-2026-105134 to bypass authentication and execute arbitrary commands on affected systems. Patches for the two vulnerabilities were released by Ahsay Backup in mid-October 2026. The two vulnerabilities are assessed to have been weaponized as zero-days, with the managed security platform first observing threat actors employing a smash-and-grab approach to deploy web shells and XMRig cryptocurrency miners on compromised systems. "However, this incident reflects a much larger intrusion with more patience; the operator planted shells in several places, ran two different miners, staged tunneling tools, and installed a custom implant, all on servers whose job is to hold backups," Huntress rese...

The threat actor known as Blind Eagle has resurfaced with a new campaign targeting organizations in Latin America through judicial and administrative-themed phishing lures to deliver a remote access trojan (RAT) that shares its lineage with AsyncRAT and DCRat. "The campaign uses Portuguese and Spanish lures that resemble court notifications, fiscalía notices, tutela proceedings , and administrative documents," Zenox said in a report shared with The Hacker News. Assessed to be a Spanish-speaking group and active since 2018, Blind Eagle (aka APT-C-36) has a track record of using spear-phishing lures to distribute commodity RATs like AsyncRAT, BitRAT, Lime RAT, NjRAT, Quasar RAT, and Remcos RAT. Attack chains begin with phishing emails targeting individuals who handle cases, contracts, judicial, or institutional service requests to trick them into opening a malware-laced attachment. One email containing a Colombian judicial-themed XHTML file has been identified as ...

The Russia-aligned state-sponsored threat actor known as Turla (aka Snake) is wielding a previously undocumented cyber espionage toolset called Cereal that's used to break into victims' Microsoft Exchange servers with an aim to surreptitiously collect emails. According to an ESET report shared with The Hacker News ahead of publication, the sophisticated and modular tool is designed for long-term intelligence gathering and has been observed against two governmental entities in Kazakhstan and Romania in late 2025. "The Cereal toolset is a carefully constructed instrument for long-term, stealthy cyber espionage," the Slovakian cybersecurity company said . "It leaves little on disk, avoids external infrastructure that could be discovered and blocked, and conceals itself within legitimate Exchange processes." "The Cereal toolset demonstrates that, for Turla, Exchange servers are not just mail servers – they are durable collection points, internal e...

Attackers used the Ethersphere project's own release automation to publish malicious versions of two of its tools for the Swarm decentralized storage network: bee-js 13.3.0 and Swarm Desktop 0.56.2. Both releases download and run code built to steal the wallet key that Swarm Desktop keeps for its node, along with the stored password that unlocks it. The code is also built to install a backdoor on Windows, macOS, and Linux machines. The bee-js package is the JavaScript library behind Swarm Desktop and the swarm-cli command-line tool. Swarm Desktop runs a Swarm node on a user's own computer and saves the node's private keys there. Both malicious releases have been taken down, and the project's maintainers released a clean Swarm Desktop update today. Neither step removes a backdoor already installed nor protects a key already sent. No theft of funds had been reported at the time of writing. Swarm Desktop 0.56.2 appeared on GitHub at about 00:36 UTC today and was w...

The South Asian cyber espionage group known as Bitter (aka APT-C-08, APT-Q-37, Hazy Tiger, Orange Yali, T-APT-17, and TA397) has been observed targeting South Asian organizations with a previously unreported remote access trojan called PapRAT. "PapRAT has both C++ and Rust implementations," Fortinet FortiGuard Labs researcher Cara Lin said . "Its capabilities include command execution, file uploads and downloads, file deletion, directory and drive enumeration, and screenshot capture. The Rust variant adds PowerShell execution and other commands." The campaign is notable for making use of three different infection chains - A Windows Shortcut (LNK) file that abuses the native "ftp.exe" utility to run scripts and create scheduled tasks designed to maintain contact with a command-and-control (C2) server. A VHDX disk image containing a LNK file that launches a lure Microsoft Excel spreadsheet, while running an MSI installer in the background to d...

A system doesn't always need a complicated bug to let someone in. Sometimes, a blank password is enough. That's one of the bigger stories this week. And it gets worse when the tools meant to keep systems updated or running safely become part of the attack. Elsewhere, attackers are hiding inside normal web traffic, stealing credentials from network devices, and finding new uses for exposed systems. AI is helping some of them move faster, but old mistakes are doing plenty of the work too. Even forgotten settings and small changes made months ago are coming back to cause trouble. There's a lot packed into this week's news, including some strange research findings, fresh attacks, and a few warnings worth taking seriously. Here's the full recap. ⚡ Threat of the Week OpenSSH Flaw Sees Exploitation Attempts — Threat actors are attempting to exploit a recently disclosed security flaw impacting OpenSSH that can enable sign-ins to accounts that have no password set....

A backdoor has been found hiding in the web server that runs Control Web Panel (CWP), a free panel for managing Linux hosting servers, researchers at QiAnXin's XLab said this week. The backdoored web server executes commands that attackers send via web requests, and those requests never appear in its access logs. Installing it takes root access, so the attackers must already control the server. The researchers, who named the backdoor cwpdoor , captured its installer, a shell script posing as a version update, on June 29. The installer handles only two versions of that web server, cwpsrv 1.15.10 and 1.24.0. The researchers do not yet know how attackers get the root access the installer needs. On September 30, an archive holding a copy of the backdoor was uploaded to VirusTotal from Brazil. The researchers say this indicates that "real victims already exist in the wild." They give no count of infected servers. The backdoor is cwpsrv itself, rebuilt with extra code...

How much damage can someone do without breaking much? Quite a lot, it seems. A stolen login can open doors across several systems. A trusted setting can be used to lock people out. Even a simple file copy can reach places it shouldn't. And while new tools are helping find security holes faster, some important systems are still taking months, sometimes over a year, to get patched. Not exactly a great match. The stranger part is how little some attacks now need. Ransom demands without encrypted files. Fake websites that look real enough to steal money. AI tools picking up dangerous instructions while trying to help. Even the attackers are making mistakes in their own code. This week's stories are a reminder that the biggest problems don't always come from clever tricks. Sometimes the easy way works just fine. Here's what else happened. The threats change every week. Subscribe, and we’ll alert you when each new ThreatsDay Bulletin is out.

October 2026 brought another wave of cyber threats targeting US businesses, with attackers exploiting trusted platforms, legitimate authentication processes, and everyday business workflows. For enterprises, these campaigns raise the stakes beyond individual security incidents, increasing the risk of financial losses, data breaches, and costly operational disruption. Below, we examine five active cyber threats through real-world sandbox investigations, revealing how they operate, the risks they pose to organizations, and how security teams can detect and contain attacks faster to minimize business impact. 1. SkyW4lker: Microsoft 365 Phishing Puts US Corporate Accounts at Risk SkyW4lker is an active phishing kit that exploits Microsoft's legitimate device-code authentication to compromise corporate accounts without stealing passwords or bypassing MFA. ANY.RUN researchers identified 618 related sandbox analyses between June and October 21, 2026, with 46% coming from the US. ...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a medium-severity security flaw impacting multiple Apple operating systems to its Known Exploited Vulnerabilities ( KEV ) catalog, following reports of active exploitation. The vulnerability in question is CVE-2024-27834 (CVSS score: 5.5), a case of improper authentication that could allow an attacker with arbitrary read and write capability to bypass Pointer Authentication. It was addressed by Apple in May 2024 with improved checks in iOS 16.7.8 and iPadOS 16.7.8, iOS 17.5 and iPadOS 17.5, macOS Sonoma 14.5, tvOS 17.5, watchOS 10.5, and Safari 17.5. The vulnerability was demonstrated as a zero-day at the Pwn2Own Vancouver hacking contest held in March that year. The addition of CVE-2024-27834 to the KEV catalog follows a report from Sekoia that threat actors possibly linked to Russia exploited previously patched vulnerabilities in Safari and Google Chrome to deliver malware capable of harves...

The Russia-linked threat actor known as APT29 is presumed to be behind a large-scale watering hole campaign targeting iOS and Android users through compromised websites, fake domains, and a supply chain attack involving a Ukrainian web analytics service called Plerdy SEO Tracker. "The injected JavaScript code collects browser and device attributes," Sekoia researchers Amaury-Jacques Garçon and Félix Aime said in a technical report shared with The Hacker News. "Then, the delivery infrastructure delivers a platform-specific N-day exploit chain targeting either iOS or Android." The end goal of the attacks is to serve payloads capable of stealing browser cookies, and in some cases, Wi-Fi passwords or full mobile device data. The activity, codenamed Poisoned Source , was discovered by the French cybersecurity company in mid-October 2026. A defining aspect of the campaign is the use of three infection vectors - Compromise of legitimate websites to inject mal...

A China-aligned threat actor known as SlippyNunchucks has been attributed to a Domain Name System (DNS) hijacking operation abusing insecure HTTP communications in Windows versions of Sogou Input Method as part of a surveillance campaign designed to deploy an implant called DarkVigil (aka FDMTP). The campaign, observed starting July 1, 2026, is assessed to have targeted organizations and Chinese-speaking individuals in Hong Kong, Thailand, Japan, Vietnam, Oman, and Sri Lanka, according to ESET. "DarkVigil implants are typically deployed through popular Chinese applications," ESET researcher Anh Ho said in a report shared with The Hacker News. "By abusing these applications, the SlippyNunchucks threat actor has been able to reach Chinese-speaking users across Asia and Europe." Some of the applications abused by the adversary include Sogou Input Method, QuickFox, QingTalk, MiYunChat, SoftCam, and tawk.to. Active since at least September 15, 2023, SlippyNunc...

Russian authorities have arrested three suspected members of a threat group known as VasyGrek and dismantled its criminal infrastructure. Also known as Fluffy Wolf, the threat actor has a history of targeting Russian and international companies since 2016. The Ministry of Internal Affairs of the Russian Federation (MVD) said members of the group are "suspected of embezzling funds from the accounts of organizations, as well as creating, distributing, and using malicious software." In one September 2025 case highlighted by the ministry, the attackers are said to have sent a phishing email to an unnamed organization, masquerading it as business correspondence and instructing recipients to open a reconciliation report that triggered the execution of malware. The incident resulted in losses of 660,000 rubles ($8,000) from the organization's bank account, with the attackers transferring the funds to accounts under their control. "The attacks utilized a vast ...