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Two Russia-aligned cyber attack campaigns have continued to exploit a security flaw in WinRAR to target Ukrainian organisations, almost a year after patches for the vulnerability were released. The activity has been attributed by Trend Micro to Earth Dahu (aka Gamaredon) and SHADOW-EARTH-066 (aka UAC-0226). It involves the exploitation of CVE-2025-8088 , a path traversal flaw that allows an attacker to write files outside the extraction directory via NTFS Alternate Data Streams (ADS). It was patched by WinRAR in July 2025. The findings show "how unmanaged software keeps an exploited entry point open long after the fix ships," Trend Micro researchers Hiroyuki Kakara and Feike Hacquebord said in an analysis published Monday. The WinRAR exploit chain exploited by SHADOW-EARTH-066 is a departure from Excel macro droppers previously used by the threat actor to deliver an information stealer called GIFTEDCROOK. The latest iteration makes use of crafted RAR archives featur...

University of Toronto researchers have built and tested a proof-of-concept AI-driven computer worm that uses a locally hosted open-weight large language model to reason its way through a network, generate tailored attack strategies for each target it encounters, and replicate itself, all without human intervention and without touching a commercial AI service. The preprint, posted to arXiv on June 2 and currently under peer review, shows why single-CVE patching breaks down when malware can inspect exposed services, read fresh advisories, and generate a new attack path at runtime. In 15 isolated runs on a deliberately vulnerable 33-host network, the worm identified an average of 31.3 vulnerabilities and gained elevated access on 23.1 hosts, roughly three-quarters of the hosts it actively targeted. It then replicated autonomously to 20.4 of those hosts, or 62% of the full network, over seven days, with no prior knowledge of the network topology and no human input. Traditional worm...

The Miasma supply chain campaign has sparked a fresh attack wave called Hades , this time involving 37 malicious wheel artifacts across 19 packages in the Python Package Index (PyPI) registry, as the Mini Shai-Hulud-style attacks continue to be refined and splintered to target specific ecosystems. "The compromised releases shipped a *-setup.pth file that attempts to execute automatically during Python startup, download the Bun JavaScript runtime, and run an obfuscated JavaScript payload named _index.js," Socket said in a new analysis. The list of identified packages is below - bramin 0.0.2, 0.0.3, 0.0.4 cmd2func 0.2.2, 0.2.3 coolbox 0.4.1, 0.4.2 dynamo-release 1.5.4 executor-engine 0.3.4, 0.3.5 executor-http 0.1.3, 0.1.4 funcdesc 0.2.2, 0.2.3 magique 0.6.8, 0.6.9 magique-ai 0.4.4, 0.4.5 mrbios 0.1.1, 0.1.2 napari-ufish 0.0.2, 0.0.3 nucbox 0.1.2, 0.1.3 okite 0.0.7, 0.0.8 pantheon-agents 0.6.1, 0.6.2 pantheon-toolsets 0.5....

Phishing has always been a numbers game. AI has turned it into a volume machine. Attackers can now create convincing emails, fake login pages, and tailored lures in minutes. Every polished message adds another case for Tier 1 to review, another link to inspect, and another alert that cannot be dismissed at a glance. As the queue grows, a credential theft attempt or malware delivery can easily get buried among routine checks. SOC leaders need to help their teams cut through the noise faster and catch the alerts that could turn into a serious incident. Where Tier 1 Teams Lose Time on AI Phishing AI helps attackers launch more convincing campaigns, vary the message, and rotate infrastructure faster. For Tier 1 teams, that means fewer alerts can be ruled out quickly. AI-driven change What Tier 1 has to deal with SOC impact More lure variations Similar campaigns no longer look identical. More alert...

Monday again. The weekend was meant to be quiet. It wasn't. Last week had poisoned packages, a broken AI helper, and a worm tearing through repos. The ugly part: basic tricks still worked. A chatbot got fooled. A bot token got leaked inside the malware. The same old mistakes showed up again. And while everyone chased the loud stuff, quieter attackers sat in inboxes for months, reading mail and stealing it bit by bit. Lots to cover. Grab coffee. Read up. ⚡ Threat of the Week Miasma Worm Hits 73 Microsoft GitHub Repositories in Supply Chain Attack - Microsoft's GitHub repositories became the latest to fall victim to the ongoing Miasma self-replicating supply chain attack campaign. The incident impacted 73 Microsoft repositories across four of its GitHub organizations, including Azure, Azure-Samples, Microsoft, and MicrosoftDocs. The development prompted GitHub to disable access to those repositories. Miasma is assessed to be a variant of the Mini Shai-Hulud worm that T...