WebAssembly Is Abused by eCriminals to Hide Malware

CrowdStrike's research on WebAssembly (Wasm) reveals its significant potential for abuse by eCrime groups, with findings showing that over 75% of analyzed Wasm modules were malicious. Originally developed to enhance browser performance for resource-intensive applications, WebAssembly is being exploited for illicit activities such as hiding malware and mining cryptocurrency. The analysis highlights how Wasm's capability to execute compiled programs directly in browsers makes it an attractive tool for threat actors, who use it to embed malicious scripts and achieve near-native execution performance on targeted devices. This trend aligns with the financial motivations of cybercriminals and indicates that as Wasm adoption grows, so too does its potential for misuse in the cyber threat landscape.

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