Sign in Get started

Back to results

LowSigmaHQ Gavin Knapp

Potentially Suspicious Network Connection To Notion API

Detects a non-browser process communicating with the Notion API. This could indicate potential use of a covert C2 channel such as "OffensiveNotion C2"

Detection logic

Detection requirements

Platform: ESXi Linux macOS Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: windows
Log source category: network_connection

Known benign triggers

Legitimate applications communicating with the "api.notion.com" endpoint that are not already in the exclusion list. The desktop and browser applications do not appear to be using the API by default unless integrations are configured.

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
github.com/mttaggart/OffensiveNotion	Tool	Only this detection cites it
medium.com/@huskyhacks.mk/we-put-a-c2-in-your-notetaking-app-offensivenotion-3e933bace332	Unclassified	Only this detection cites it

Detections can measure how the public catalogue is used — which detections people look for, and which pages bring them here. It sets a cookie that recognises this browser for 180 days. It is never linked to an account and never follows you to other sites. Privacy notice