Cyber Attack | Breaking Cybersecurity News | The Hacker News

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...

An October cyberattack on refrigeration controllers at about 700 French retail sites was carried out by a cyber unit of Iran's Islamic Revolutionary Guard Corps (IRGC), the French government said yesterday. The attackers broke into controllers on the night of October 11 and changed their defrost settings to high temperatures. That caused food losses and, in at least 15 cases, fires. The unit is called Shahid Kaveh . It is known mainly through hacktivist personas, such as CyberAveng3rs and Cyber Isnaad Front , that publicly claim some of its attacks, France says. France's Foreign Ministry plans to summon Iran's ambassador and to ask its European partners to adopt new sanctions against Iranian organizations and individuals involved in the attack. The Paris prosecutor's office opened a judicial investigation yesterday against the unit's head, the head's two deputies and anyone else identified. It has asked for international arrest warrants. The offenses u...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday added four security flaws impacting GPUStack, SignalWire FreeSwitch, OpenBSD OpenSSH, and IBM Aspera Faspex to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation. The vulnerabilities are listed below - CVE-2026-123218 (CVSS score: 9.8) - An incorrect authorization vulnerability in IBM Aspera Faspex that could allow an authenticated user to craft a specific message to bypass authorization, causing privilege escalations. (Fixed in November 2026) CVE-2026-116779 (CVSS score: 9.8) - A code injection vulnerability in SignalWire FreeSwitch that could result in configuration and credential disclosure, arbitrary call control, and command execution. (Fixed in October 2026) CVE-2026-123158 aka SSHole (CVSS score: 8.1) - An unexpected status code or return value vulnerability in OpenBSD OpenSSH on Linux that could allow for authentication bypass. (Fixed in November...

An attacker broke into AWS accounts belonging to multiple Qubole customers between October 14 and October 26 and stole stored secrets and data, cloud security company Wiz said today. The attacker used credentials for an AWS account that Qubole's platform uses to reach those customers. How the attacker got those credentials has not been disclosed. Qubole , a data lake platform owned by Idera, operates within its customers' AWS accounts. To let it in, a customer creates an IAM role, which is an AWS identity with its own set of permissions. The role's trust policy allows Qubole's AWS account to assume the role, granting those permissions. Each request to do this, called AssumeRole , must include a matching code from Qubole known as an External ID. Apart from the attack, most of the roles the attacker assumed were unused, according to Wiz's researchers. But each role still trusted Qubole's account, so the attacker's requests worked. Any organization...

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...

Everyone running LNbits , a free, open-source Bitcoin Lightning wallet system, should shut down their servers now because of a wave of attacks, the project said yesterday. It has several security fixes to release and asked operators to be careful until they are out. One operator said new accounts used an exploit to withdraw 2,285,545 satoshis, about 0.023 bitcoin, from his server before he could stop it. The shutdown notice came about 80 minutes after a first, narrower warning. That warning asked operators to disable Paywall, an add-on that makes people pay to view content, while the project looked into a possible bug. As of 09:00 UTC today, the project had not released a fixed version. On X, it had not canceled the notice, offered another option, or told operators how to check whether their servers were hit before they were shut down. Ben Arc, an LNbits developer, said in a  patch estimate  yesterday that patches "should be merged and available within 24-48hrs." Cou...

A single attacker using AI agents pulled emergency dispatch records covering seven Taipei districts, researchers at Acronis's Threat Research Unit said last week. The agents also found a Taipei fire department platform exposing patient data from 2018, including ECG readings and ambulance video footage, without a login. The researchers are highly confident that the attacker is a single person based in Hualien City, Taiwan. He aimed the agents at hundreds of organizations in at least 11 countries, including emergency services, banks, universities and military systems. The agents collected data or accessed systems at about 10 of them in Taiwan, Mexico and Thailand. The evidence comes from the attacker's own server, which initially appeared to be a misconfigured development system. It turned out to be his operational attack platform, containing more than 90,000 files, including the agents' conversations, his command history, hacking tools, credentials, and victims' d...

U.S. government agencies have warned that threat actors are actively targeting industrial refrigeration and cold-chain monitoring systems globally with an aim to cause service disruptions, fire hazards, and loss of inventory. "The actors may exploit vulnerabilities or weaknesses in unpatched or internet-accessible controllers to remotely alter settings and force units into continuous heating and defrost cycles, which can cause widespread inventory loss and equipment hazards," according to a joint advisory. According to the U.S. Cybersecurity and Infrastructure Security Agency (CISA), Federal Bureau of Investigation (FBI), Health and Human Services (HHS), Department of Agriculture (USDA), and Department of Transportation (DOT), threat actors are likely to exploit authentication bypasses, arbitrary code injection, and weak configurations to gain access to these systems and cause the following effects - Change of temperature, which, in turn, could affect the service l...

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, according to Previdian . The vulnerability, tracked as CVE-2026-123158 (CVSS score: 8.1) and codenamed SSHole (or *sshole), impacts Linux systems that run OpenSSH on the musl C library with Pluggable Authentication Modules (PAM) disabled, including Alpine Linux's default OpenSSH server configuration. An unauthenticated attacker can supply an oversized password to access accounts that are deliberately configured without usable passwords, without having to steal credentials or SSH keys. The issue, discovered by security researcher Ozgun Kultekin, has been addressed in OpenSSH 10.6p2 . The underlying issue dates back to a patch introduced in 2016 to fix a username enumeration vulnerability tracked as CVE-2016-6210 . Under specific conditions, the password-handling behavior in OpenSSH mistakenly interprets a failed pas...

Blockchain analysis firm Chainalysis has revealed that its ongoing investigation into the agentic cyber attack targeting its systems also exposed names, usernames, password hashes and live tokens for all users. "While we investigated, we removed access to Reactor and Data Solutions," the company said. "At this time we continue to have no evidence that any investigations data has been accessed or Chainalysis attribution data has been manipulated." Chainalysis said it has implemented additional proactive monitoring systems to detect unusual activity, adding it took the Know Your Transaction (KYT) user interface and API offline, alongside other address screening products and the login page. Previously, Chainalysis said it was probing what it described as an "ongoing multi-front cyber attack," leading to the discovery of an "on-path attack" that exposed a subset of customer passwords. The company said the attack vector has since been addres...

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 Indian Computer Emergency Response Team (CERT-In) has disclosed that an artificial intelligence (AI)-assisted threat actor it tracks as Crafty Falcon is targeting organizations in the Banking, Financial Services, and Insurance (BFSI) sectors in the country. Describing the threat as active and ongoing, the activity involves the use of publicly-available AI-driven offensive security tools like ARTEX, PentAGI, Cairn, and CyberStrikeAI . "These tools execute complete attack chains autonomously at machine speed, generate and refine large numbers of tailored attack scripts in rapid succession, and adapt their payloads based on target responses," CERT-In said . "The supporting attack infrastructure rotates IP addresses within hours to days." The agency said the attacks have also targeted cryptocurrency exchanges and digital asset service providers, resulting in the theft of keys and funds. The update follows an October 2026 alert issued by CERT-In, which wa...

Zyxel GS1900 network switches that received the vendor's earlier fix for an actively exploited flaw are still open to the exploit attackers used, researchers at Binarly found. The exploit lets anyone who can reach a switch's web management interface run commands on it without logging in. Zyxel has released new firmware for 10 GS1900 models that closes the hole. The earlier fix is the 2.90 Patch 2 firmware, named in a June 16 advisory for a flaw tracked as CVE-2026-7273 . The new 2.90 Patch 3 firmware fixes a flaw now tracked separately as CVE-2026-107441, which the exploit relies on. It was posted on October 23, and the vendor announced it in an advisory earlier this week. The researchers, who reported the flaw to the vendor on September 29, call it a zero-day. Attackers already had a working exploit for it by then. GreyNoise, which monitors attack traffic through a network of sensors, reported on September 21 that attackers took data from 996 GS1900 switches around Au...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a security flaw in WordPress Core to the Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation. The high-severity vulnerability, tracked as CVE-2026-119977 (CVSS score: 8.1), is a case of Time-of-check Time-of-use (TOCTOU) race condition that could be exploited to achieve arbitrary code execution on affected servers. Patches for the flaw were released late last month. "WordPress Core contains a time-of-check time-of-use (TOCTOU) race condition vulnerability that could allow unauthenticated attackers to execute code on the server during the upgrade window," CISA said. "This is due to predictable, web-accessible staging paths used during full-package core upgrades." Details of the flaw emerged last week when Wordfence said exploiting the vulnerability does not require an account on the site. That said, it does require an attacker to exploit a brief w...

Blockchain infrastructure provider Chainstack on Tuesday disclosed that it was targeted in a cyber attack that allowed an unauthorized party to gain access to some parts of its infrastructure. The incident is assessed to be part of a large-scale, artificial intelligence (AI)-powered attack campaign that came to light last week. "An external attacker gained unauthorized access to part of Chainstack's infrastructure through a third-party component," the company said . "We detected the intrusion, cut the access paths, and are hardening our systems." According to the timeline of events shared by Chainstack, the attacker gained access to a development environment on October 26, 2026, and then escalated their access to break into "some parts of our production environment." The intrusion was subsequently detected on October 31, 2026, and the attacker's access was cut off that same day, the company noted. As part of the digital break-in, the ...

Binance on Tuesday said the record-setting theft of $6.43 billion in assets from the world's largest cryptocurrency exchange was the culmination of a "sophisticated, multi-stage campaign" that involved the use of a tampered Homebrew installation and recruitment-themed social engineering attack targeting two of its engineers. "It was not a single isolated breach or a simple phishing incident," the company said . "The attackers combined a range of techniques, including social engineering by fake recruitment interviews, malicious software downloads, compromised internal AI tooling, endpoint compromise, and an advanced transaction-authorisation method." The starting point has been traced back to a supply chain attack targeting one of its engineers from the Wallet DevOps team (named "Engineer A"), who downloaded a trojanized Homebrew installer to install a popular artificial intelligence (AI) tool after searching for it on a search engine....

An attacker broke into the update system of the cPGuard security tool on November 2 and used it to send a malicious script to customers' Linux servers. The script installed a backdoor and collected password hashes and other sensitive files from servers that ran it, cPGuard maker OPSSHIELD said in an advisory . In a later disclosure , OPSSHIELD said about 2,950 customer servers ran the script, which sent the files it collected back to the attacker. OPSSHIELD first named cPGuard 5.88.25 as the fix. Its later disclosure says version 5.88.26 removes the backdoor, and a follow-up update removes a scheduled task the script also left. Admins should install the latest version and then check that those files are gone. Credentials the script copied may still work after the update, so any server that may have run the script also needs new passwords and keys. At 02:06 UTC, the attacker, who has not been identified, used compromised credentials to get into cPGuard's update system. ...

BTCPay Server, a self-hosted, open-source cryptocurrency payment processor, has urged users to install the latest version of its software in response to reports of Bitcoin and Litecoin being stolen from hot wallets on instances running older versions. "Our investigation found that these attacks targeted servers running BTCPay Server 2.4.1 (released on 23 July 2026) or earlier," BTCPay Server said . "The attackers used a different method to exploit the vulnerability fixed in 2.4.2, released on 7 August 2026." Users who are running versions 2.4.1 or earlier are recommended to move to a fresh server with a new wallet, even in scenarios where users have not noticed a theft. In the event of stolen funds or suspected unauthorized access, it's imperative that users consider the entire machine and all secrets stored on it as compromised and follow the same recovery procedures. It's currently unknown when the attackers behind the campaign first began exploi...

Synology is urging customers to update the DiskStation Manager (DSM) software powering its Network Attached Storage (NAS) devices following ransomware attacks. The Taiwanese vendor said it observed threat actors exploiting a vulnerability patched in December 2024 to target devices running outdated versions of DSM. "These attacks aim to encrypt data and extort ransom," it said in a statement released last week. While Synology did not disclose the exact security flaw that's being exploited in these attacks, the company linked to a November 2024 security advisory that listed three vulnerabilities - CVE-2024-10441 (CVSS score: 9.8) - An improper encoding or escaping of output vulnerability in the system plugin daemon of DSM that could lead to remote code execution via unspecified vectors. CVE-2024-50629 (CVSS score: 5.3) - An improper encoding or escaping of output vulnerability in the webapi component of DSM that could allow remote attackers to read limite...