CuraSec

Act archived

CSuite Phishing Campaign Steals M365 Sessions, Deploys RMM Tools

2026-09-30 16:48 UTC · The Hacker News · read the source ↗ #phishing#rmm-abuse#microsoft-365
  • Engineer — Plan: Session token theft bypasses MFA controls — review M365 Conditional Access policies for continuous access evaluation and token binding; audit which RMM tools are permitted to execute in your environment to limit post-phishing persistence.
  • SOC/IR — Act: Active campaign with a clear behavioral signature: hunt for unauthorized RMM tool installations on endpoints and anomalous M365 sessions (new device or geolocation logins shortly following phishing delivery) since campaign has 351 tracked sandbox submissions concentrated in the US.
  • Leader — Plan: Campaign explicitly targets C-suite at technology, manufacturing, government, and consulting organizations — brief senior executives and their assistants on the risk this quarter and confirm whether your sector shows up in threat intel targeting lists.
This entry was curated and judged by AI (Claude) with automated enrichment (CISA KEV / EPSS / public PoC). Verify against the original source before acting. Found a bad verdict? Report it — confirmed errors go to the corrections log.