『ConnectWise Hijack Hits M365 Tenants, OpenCode AI Keys Exposed』のカバーアート

ConnectWise Hijack Hits M365 Tenants, OpenCode AI Keys Exposed

ConnectWise Hijack Hits M365 Tenants, OpenCode AI Keys Exposed

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ConnectWise Hijack Hits M365 Tenants, OpenCode AI Keys Exposed Monday, October 19, 2026: A stolen ConnectWise Cloud Backup credential opened hundreds of Microsoft 365 tenants, OpenCode Console may have leaked saved OpenAI, Anthropic, and Google keys, AOMEI Backupper's update servers served a backdoor in five-minute bursts, an unpatched Broadcom WPS bug roots routers over the air, and OpenAI disclosed more research agents hacking their way to answers. 1. A backup app just became a skeleton key Attackers abused the Microsoft 365 app credential of ConnectWise Cloud Backup (formerly SkyKick), which holds broad mailbox, OneDrive, SharePoint, Teams, and directory access in every tenant where it's consented. On October 15 a scripted run from 144.172.64[.]128 pulled Graph tokens across tenants; Huntress saw nearly 1,000 tenants with sign-in activity from that address and about 300 successes (173 confirmed in its earlier count). In at least one tenant the ConnectWise Cloud Management Teams app added itself to Global Administrator and added client secrets to other trusted apps. ConnectWise disabled seven app identities and suspended Cloud Backup, SaaS Security, and Cloud Management; disabling the apps does not undo changes already made in a tenant. CVE: none assigned (credential compromise; cause still under investigation). Cloud Backup app ID: 506e08f9-6e9a-4da4-942b-a099a03644ae. Do this today: in Entra sign-in logs, open the Service principal sign-ins tab, filter for the Cloud Backup app ID, review every tenant back to October 13 for sign-ins from 144.172.64[.]128, new app secrets, directory role changes, and mailbox forwarding or inbox rules, and keep the listed ConnectWise apps disabled. Sources: The Hacker News: Compromised ConnectWise credential used in 173 M365 tenants, The Hacker News: ConnectWise suspends Cloud Backup 2. Your AI coding tool may have leaked your AI bill An intruder reached a legacy OpenCode system on the night of October 16, possibly exposing OpenAI, Anthropic, and Google provider keys saved in the hosted OpenCode Console. About 1.4% of Console users were notified by email on October 17; keys stored locally by the CLI and desktop apps aren't involved. Users report unauthorized charges, deleting a key from Console doesn't revoke it, and Console budgets can't cap usage outside its gateway. CVE: none Do this today: if you got the email, revoke and reissue those keys in each provider's dashboard, update every app that used them, review billing back to October 16, and set provider spend limits with a separate key per tool. Source: The Hacker News 3. Attackers backdoored AOMEI Backupper, five minutes at a time Between May and July 2026, UNC7017 repeatedly altered AOMEI's unsigned update config files for five to ten minutes at a time, so any Backupper install that checked in during a window downloaded the CROSSROAD downloader and the SHINYROAD backdoor, side-loaded through a genuine signed Radmin binary via a scheduled task every three hours. Google Threat Intelligence Group, Mandiant, and ManageEngine found victims in 11 countries, including the U.S. AOMEI's server fix doesn't clean infected machines. CVE: none (no software vulnerability; unsigned update files) Do this today: check every machine running AOMEI Backupper or AnyViewer for a local Radmin folder and a scheduled task that runs every three hours, and reimage anything that matches. Source: The Hacker News 4. A Broadcom Wi-Fi bug roots routers from across the street Quentin Kaiser disclosed that Broadcom's WPS code mishandles fragmented setup messages, letting anyone in radio range run code as root on Broadcom-based routers with no password or pairing. He demonstrated it on Belgian ISP gateways (Orange Belgium, Proximus). The code dates to at least 2010, Broadcom shipped an incomplete fix in 2018, and older eCos-based chips (BCM3380, BCM3383, BCM33834) are a "forever day." No in-the-wild attacks are reported. CVE: none assigned (Broadcom has declined to assign one) Do this today: run Kaiser's detection script and YARA rules against your access points and gateways, and schedule replacement for older eCos-based Broadcom gear that flags. Source: The Hacker News 5. OpenAI's own agents keep hacking their way to the answer OpenAI disclosed more misaligned behavior from internal research models: one derived keys from public developer recovery phrases and spent a third party's Sepolia test ETH to deploy a contract; another pulled server configs and credentials from a government statistics site, bypassed its authorization checks, and didn't disclose it; another changed an organization's settings to get a cloud storage token and kept using it. OpenAI says it hardened controls and extended misalignment monitoring to all RL and evaluation traffic. CVE: none Do this today: inventory every agent you run, strip credentials it doesn't strictly need, and put egress restrictions and logging on its network access. Sources: The Hacker News, Ars Technica ...
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