-->
#1 Trusted Cybersecurity News Platform
Followed by 5.70+ million
The Hacker News Logo
Get the Latest News
cybersecurity

Malware | Breaking Cybersecurity News | The Hacker News

Category — Malware
Lazarus Abuses South Korean Security Software to Deploy Malware Using Post-Quantum Encryption

Lazarus Abuses South Korean Security Software to Deploy Malware Using Post-Quantum Encryption

Oct 27, 2026 Cyber Espionage / Malware
The North Korea-linked Lazarus Group has been attributed to a cyber espionage campaign dubbed Operation FlashHole targeting at least three organizations in South Korea spanning the construction, software, and wire-communication equipment manufacturing sectors. According to Russian cybersecurity company Kaspersky, the campaign has been active since at least July 2025. It's assessed to pick up from where Operation SyncHole left off. "The group targeted victims more selectively, sending spear‑phishing emails with links to fabricated but relevant sites, such as portfolio and résumé pages tailored to each target," Sojun Ryu, senior security researcher at Kaspersky GReAT, said in an exhaustive analysis. Operation SyncHole was first documented by Kaspersky in April 2025, detailing the state-sponsored adversary's targeting of South Korea's software, IT, financial, semiconductor manufacturing, and telecommunications industries since November 2024 to deliver malwa...
Australia Gets Into Amadey Malware Backend, Cuts Off Access to 180,000 Infected Computers

Australia Gets Into Amadey Malware Backend, Cuts Off Access to 180,000 Infected Computers

Oct 27, 2026 Malware / Cybercrime
A criminal using the Amadey malware can no longer access or steal data from 180,000 infected computers around the world, including some in Australia, the Australian Signals Directorate (ASD) says. The agency's operators gained access to the criminal's operation's backend and cut it off from those computers. "The next steps that we took were to disconnect that Amadey controller from all those victims," Tauri Gregory, ASD's acting deputy director-general of intelligence,  told ABC News  in an interview published on October 27. ASD is Australia's foreign signals intelligence and cyber security agency. Its  offensive cyber operations  need explicit approval from the Australian government and can disrupt cybercriminals overseas by disabling their infrastructure. Amadey was sold to criminals as a service in 2018, according to  ESET's analysis of Amadey . Each buyer runs its own control panel on its own servers. Computers infected with Amadey check ...
Hackers Infect 953 Online Stores With Scanner-Evading JavaScript, Mostly on Magento

Hackers Infect 953 Online Stores With Scanner-Evading JavaScript, Mostly on Magento

Oct 26, 2026 Malware / Web Security
An unknown threat actor has infected 953 online stores, most of them running Magento, as part of a long-running campaign active since July 2025. According to Dutch e-commerce security company Sansec, the activity is designed to add a small piece of code to the store's pages that, when visited by unsuspecting users, serves malicious JavaScript loader code through Magento CMS blocks. "When you visit, that code makes your browser ask the group's server what to do next," Sansec said . "The server first checks whether you are a real shopper or a security scanner, so scanners get nothing." No less than five distinct domains have been observed over time in connection with the campaign - manulfie[.]click, first seen in July 2025 neswnsssn[.]click, first seen in December 2025 lanhd6549tdhse[.]top, first seen in March 2026 additionalver[.]com, first seen in June 2026 deepveindrilling[.]com, first seen in October 2026 Sansec said it found deep...
cyber security

The Toxic Combination: 62% of Agents Are One Prompt Away From Exfiltration

websiteRecoAI Agent Security
Get the report: how one unreviewed pair of permissions turns a single agent into a breach.
cyber security

Turn Your Next Employee Mistake Into a Training Moment, Not a Breach.

websiteAdaptive SecuritySecurity Awareness
Build safer habits with Adaptive's interactive training tailored to your team's roles and real-world risks.
Attackers Use Microsoft Teams IT Support Scams to Deploy Malware and Ransomware

Attackers Use Microsoft Teams IT Support Scams to Deploy Malware and Ransomware

Oct 26, 2026 Social Engineering / Malware
Cybersecurity researchers are calling attention to what they say is a "recurring social engineering pattern" across hundreds of cases in which threat actors use Microsoft Teams' external chat creation feature to conduct impersonation scams or to deliver malware. "A consistent pattern of attacker behavior has emerged across these incidents: the use of the same throwaway tenants, the same 'IT Support (Internal)' display names, the same remote-access tools, and increasingly, the same payload domains," Arctic Wolf Labs said in a report shared with The Hacker News. The attacks consistently employ IT-themed display names or friendly-sounding first names to subvert external-user warnings in Teams. These messages originate from Teams identities established through newly created or acquired Microsoft 365 tenants. Nearly 30–40% of the cases investigated by the cybersecurity company involve the use of *.onmicrosoft[.]com , a permanent fallback domain auto...
⚡ Weekly Recap: This2Shell, That2Shell, Everything's an RCE? Rogue AI, Supply Chain Chaos and More

⚡ Weekly Recap: This2Shell, That2Shell, Everything's an RCE? Rogue AI, Supply Chain Chaos and More

Oct 26, 2026 Cybersecurity News / Hacking
This2Shell, That2Shell, Everything2Shell. That's pretty much how the last week went. Critical bugs that let attackers run code remotely are showing up everywhere. Hackers are scanning for targets, some flaws are already being used in attacks, and security teams have more urgent patches than they can keep up with. And that's not even the full story. A leaked key led to a software supply-chain attack. AI agents are being tricked into following harmful instructions. Old bugs are still being used to break into systems, and some attacks are so simple it's hard to believe they still work. Some websites even went offline to avoid taking chances. It's been a rough week for anyone trying to keep systems safe. Here's what happened. ⚡ Threat of the Week PHP2Shell Flaws Puts Organizations on Alert — The PHP Foundation released patches for two critical vulnerabilities in PHP, CVE-2026-109618 and CVE-2026-109619, that could lead to unauthenticated remote code execution...
⚡ Top Stories This Week
Expert Insights Articles Videos
Cybersecurity Resources