Attention: We have transitioned to a new AAD or Microsoft Entra ID from the week of May 20, 2024. In case your tenant requires admin consent, please refer to this document located at Overview of user and admin consent - Microsoft Entra ID | Microsoft Learn and grant access to App ID: 6ba09155-cb24-475b-b24f-b4e28fc74365 with graph permissions for Directory.Read.All and User.Read for continued access. While the app may appear unverified, you can confirm its legitimacy by verifying the App ID provided.
You should also run a full scan. A full scan might find hidden malware.
Use cloud protection
Use cloud protection to help guard against the latest malware threats. It’s turned on by default for Microsoft Security Essentials and Windows Defender for Windows 10.
Go to All settings > Update & security > Windows Defender and make sure that your Cloud-based Protection settings is turned On.
This threat is malicious JavaScript code hidden in images. This technique is called steganography.
This threat can create files in the Temporary Internet Files folder, for example:
countly.min.js
It collects sensitive information from your PC, including details about your browser environment like locale, screen resolution, GMT time offset, current date, user-agent, and pixel ratio.
It then connects to any of the following command-and-control (C&C) servers to send collected information:
It can then receive configuration or other data from the C&C server. We have seen the C&C server reply with a portable network graphics (PNG) image file that also contains hidden JavaScript code using steganography.