malware
Microsoft Removes 119 Edge Extensions That Hid Malware in Images and Fonts
High
Summary
Microsoft removed 119 malicious Edge extensions from its add-on store that employed steganography to hide malware, including credential theft and ad fraud capabilities. The operation, dubbed StegoAd, had been active since at least 2021 and utilized techniques like hiding code in image and font files to evade detection. Microsoft identified connections to the DarkSpectre APT group and highlighted the importance of user vigilance and security best practices.
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