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Microsoft released fixes for a record 1,411 CVEs in its October 2026 Patch Tuesday on October 13, more than the roughly 1,100 issued in all of 2025 and above the records set in July and September. The surge is attributed to Microsoft's use of AI-driven vulnerability discovery, including its multi-model agentic scanning harness (MDASH). Th…
Bitdefender documented Midnight Mimosa, an Android malware campaign that embeds a platform-signed malicious system app in the firmware of low-cost, MediaTek-based handsets and counterfeit flagship models before they reach buyers. Thousands of infected devices were observed in more than 150 countries over roughly two years. The implant dri…
The Mini Shai-Hulud worm from May 2026 is still infecting new GitHub repositories. SafeDep found six repositories that received malicious hook files between 20 and 24 September 2026. The cause is that all tags of the actions-cool/issues-helper GitHub Action, hijacked on 18 May 2026, still point to the malicious commit, and the payload is …
This SentinelOne analysis argues that EDR killing, mostly through bring your own vulnerable driver (BYOVD), has grown from one-off tooling into a maintained, shared and sold capability. Ransomware actors disabled security tools in about 48% of 2024 intrusions, and BYOVD is the fastest-growing method within that figure. The article traces …
This SentinelOne weekly roundup (Week 39, 2026) covers one law enforcement success and two active threat campaigns. A US court sentenced Armenian national Karen Serobovich Vardanyan ("Maneeken"/"Karl Lagerfeld"), an initial access specialist for Ryuk ransomware, to two years in prison and over $1.2 million in restitution. SentinelLABS ide…
Unit 42 detailed a multi-stage intrusion in September 2024 against a telecommunications managed service provider, tracked as CL-STA-0954 (aka UNC5820). The attackers gained initial access by exploiting CVE-2024-47575 (FortiJump) on a central FortiManager and exfiltrated an archive with running configurations, credentials and private keys …
Kaspersky GERT reports that the NightEagle APT (also tracked as APT-Q-95), active since at least 2023 and previously focused on Asia, is now attacking businesses in Russia. The attackers usually gain access through compromised valid credentials on corporate VPNs, connecting from Russian IPs tied to Cloudflare WARP tunnels and from Europea…
Kaspersky analysis of an installer first classified as adware (MD5 c24e99f9437feacaa63766a3cde3fe3d) found that it delivers the ValleyRAT backdoor. The installer drops a modified, signed Chinese wallpaper tool, QN Wallpaper, and uses it for DLL sideloading of a malicious libcef.dll. The adware's advertising function does not work. Attacke…
SentinelOne reports observing APT29 (Midnight Blizzard / Cozy Bear, Russia's SVR) running the CaptiveCrunch campaign, disclosed by Microsoft in July 2026, across multiple customer environments in three regions. The operation abuses captive-portal behaviour and forged name resolution to push fake browser updater downloads to roaming Window…
Elastic Security Labs is tracking REF8801, a campaign in which a fake Web3 venture capital accelerator, Apex Accelerator (Apex Foundation), targets cryptocurrency startups and founders with malicious npm packages. The packages, @apexacc/cli and @apexacc/audit, pose as an AI advisor and an MCP-based security scanner, with offers of free Cl…
Unit 42 reports a campaign, tracked as CL-UNK-1211, that targeted government entities and state-affiliated infrastructure between October 2025 and April 2026. The cluster has not been attributed to a nation-state or to cybercrime. The attackers focused on Linux servers for reconnaissance, persistence and intelligence collection, including…
