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Category — Malware
Compromised GitHub Actions Came Back Online and Resumed Executing Mini Shai-Hulud Malware

Compromised GitHub Actions Came Back Online and Resumed Executing Mini Shai-Hulud Malware

Sep 25, 2026 Malware / Supply Chain Attack
Two actions-cool GitHub Actions have been disabled for a second time after the repositories became accessible last week, months after they were compromised during the May 2026 Mini Shai-Hulud campaign . The affected GitHub Actions are listed below - actions-cool/issues-helper actions-cool/maintain-one-comment Visiting either of the repositories now shows the message: "Access to this repository has been disabled by GitHub Staff due to a violation of GitHub's terms of service. If you are the owner of the repository, you may reach out to GitHub Support for more information." "On September 16, 2026, both repositories became accessible again," Socket researcher Karlo Zanki said . "Their release tags were not cleaned up first. They still point to the malicious content introduced on May 18, so any workflow that references either action by a version tag resumed downloading and executing the payload on its next run." The two GitHub Actions work...
PamStealer macOS Malware Adds Live C2 Payload Decryption and Multi-Layer Persistence

PamStealer macOS Malware Adds Live C2 Payload Decryption and Multi-Layer Persistence

Sep 25, 2026 Malware / Social Engineering
Cybersecurity researchers have flagged a new version of PamStealer that ensures that the main payload can only be recovered using a server-side decryption chain. The latest artifacts, per Jamf Threat Labs, continue to rely on the same JavaScript for Automation (JXA) dropper mechanism, but modify the lure and the delivery method. "Where earlier variants embedded their payload key material directly in the JXA source, it now fetches a purpose-built decryption utility and completes a key exchange with the server before the payload can be unwrapped," security researcher Thijs Xhaflaire said in an analysis. "Without the server's cooperation, the payload cannot be recovered statically." A second major change is the choice of the decoy itself. While previous versions observed in July and August 2026 were observed using fake websites masquerading as Maccy, Scoppr, and Nancy Clipboard, victims are now lured through a bogus website ("wavel[.]app") advert...
ThreatsDay: AI Search Poisoning, AI Coding Tool Leaking Repos, One-Click Code Execution and 13 More Stories

ThreatsDay: AI Search Poisoning, AI Coding Tool Leaking Repos, One-Click Code Execution and 13 More Stories

Sep 24, 2026 Hacking News / Cybersecurity News
This week, the dangerous stuff keeps arriving dressed as something boring. An update. A login box. A search answer. A coding tool. A link you have clicked a hundred times before. That is the thread running through the pile. Trusted paths get poisoned. Old bugs find new jobs. AI tools leak more than expected. Fake prompts look real enough. And some attacks barely need an exploit at all — just one weak setting or one person doing what the screen tells them. Nothing here looks especially dramatic. That is what makes it useful. The threats change every week. Subscribe, and we’ll alert you when each new ThreatsDay Bulletin is out.
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Mikko Hyppönen and Enterprise CISOs on What AI-Speed Attacks Actually Change

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Placeholder third-party[.]com Referenced Across 1,700+ Repositories Now Serves Malicious Content

Placeholder third-party[.]com Referenced Across 1,700+ Repositories Now Serves Malicious Content

Sep 24, 2026 Phishing / Malware
The "third-party[.]com" domain, commonly used as a documentation placeholder, has been observed serving a ClickFix lure to Windows browsers while displaying a harmless decoy to other users. "third-party[.]com has been a generic documentation placeholder for years, the same role example.com plays," Manifold Security's Head of Research, Ax Sharma, said . "Unlike 'example[.]com,' third-party[.]com is not IANA-reserved . Anyone could register it, and someone did. Every doc, test, and skill that hard-coded it now points readers at attacker infrastructure." As of writing, the domain has been marked as malicious and unsafe on both VirusTotal and Google's Safe Browsing list . ClickFix is a social engineering attack technique in which either malicious or legitimate-but-compromised websites display error messages, browser alerts, or CAPTCHA verification prompts, tricking users into copying and executing hidden commands via the Windows Run d...
Hacked Ukrainian Sites Serve Fake Cloudflare ClickFix Lures for Psychedelic Stealer

Hacked Ukrainian Sites Serve Fake Cloudflare ClickFix Lures for Psychedelic Stealer

Sep 24, 2026 Malware / Social Engineering
An active ClickFix campaign has been observed compromising legitimate Ukrainian business websites to inject bogus Cloudflare verification pages and trick victims into downloading a previously undocumented information stealer called Psychedelic . "When a visitor interacts with the page, the lure copies a Windows Installer command to the clipboard and instructs the visitor to paste it into the Windows Run dialog," Arctic Wolf Labs said in a technical report shared with The Hacker News. The ClickFix chain uses an "msiexec.exe" command to fetch a Windows MSI installer that's used to deliver the stealer malware. The malicious tool is designed to harvest browser passwords, account tokens, and cryptocurrency-wallet data, set up scheduled-task persistence, and contact a command-and-control (C2) server for additional tasking. Some of the compromised websites include a hair-treatment clinic, a scale-model manufacturer, a specialist bookseller and publisher, a psy...
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