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  • Open Access

    ARTICLE

    MemHookNet: Real-Time Multi-Class Heap Anomaly Detection with Log Hooking

    Siyi Wang, Yan Zhuang*, Zhizhuang Zhou, Xinhao Wang, Menglan Li

    CMC-Computers, Materials & Continua, Vol.85, No.2, pp. 3041-3066, 2025, DOI:10.32604/cmc.2025.067636 - 23 September 2025

    Abstract Heap memory anomalies, such as Use-After-Free (UAF), Double-Free, and Memory Leaks, pose critical security threats including system crashes, data leakage, and remote exploits. Existing methods often fail to handle multiple anomaly types and meet real-time detection demands. To address these challenges, this paper proposes MemHookNet, a real-time multi-class heap anomaly detection framework that combines log hooking with deep learning. Without modifying source code, MemHookNet non-intrusively captures memory operation logs at runtime and transforms them into structured sequences encoding operation types, pointer identifiers, thread context, memory sizes, and temporal intervals. A sliding-window Long Short-Term Memory (LSTM) More >

  • Open Access

    ARTICLE

    Leak Detection of Gas Pipelines Based on Characteristics of Acoustic Leakage and Interfering Signals

    Lingya Meng1, *, Cuiwei Liu2, Liping Fang2, Yuxing Li2, Juntao Fu3

    Sound & Vibration, Vol.53, No.4, pp. 111-128, 2019, DOI:10.32604/sv.2019.03835

    Abstract When acoustic method is used in leak detection for natural gas pipelines, the external interferences including operation of compressor and valve, pipeline knocking, etc., should be distinguished with acoustic leakage signals to improve the accuracy and reduce false alarms. In this paper, the technologies of extracting characteristics of acoustic signals were summarized. The acoustic leakage signals and interfering signals were measured by experiments and the characteristics of time-domain, frequency-domain and time-frequency domain were extracted. The main characteristics of time-domain are mean value, root mean square value, kurtosis, skewness and correlation function, etc. The features in More >

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