SANS Stormcast Thursday Mar 27th: Classifying Malware with ML; Malicious NPM Packages; Google Chrome 0-day
Update: 2025-03-27
Description
Leveraging CNNs and Entropy-Based Feature Selection to Identify Potential Malware Artifacts of Interest
This diary explores a novel methodology for classifying malware by integrating entropy-driven feature selection with a specialized Convolutional Neural Network (CNN). Motivated by the increasing obfuscation tactics used by modern malware authors, we will focus on capturing high-entropy segments within files, regions most likely to harbor malicious functionality, and feeding these distinct byte patterns into our model.
https://isc.sans.edu/diary/%5BGuest%20Diary%5D%20Leveraging%20CNNs%20and%20Entropy-Based%20Feature%20Selection%20to%20Identify%20Potential%20Malware%20Artifacts%20of%20Interest/31790
Malware found on npm infecting local package with reverse shell
Researchers at Reversinglabs found two malicious NPM packages, ethers-provider2, and ethers-providerz that patch the well known (and not malicious) ethers package to add a reverse shell and downloader.
https://www.reversinglabs.com/blog/malicious-npm-patch-delivers-reverse-shell
Google Patched Google Chrome 0-day
Google patched a vulnerability in Chrome that was already exploited in attacks against media and educational organizations in Russia
https://chromereleases.googleblog.com/2025/03/stable-channel-update-for-desktop_25.html
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