Abstract: A semantic-based approach that classifies Android malware via dependency graphs. To battle transformation attacks, a weighted contextual API dependency graph is extracted as program semantics to construct feature sets. To fight against malware variants and zero-day malware, graph similarity metrics are used to uncover homogeneous application behaviors while tolerating minor implementation differences.

Abstract: The present invention relates to a mobile phone with a stereo recording function, which includes a stereo sound frequency receiving module including sound receiving components for receiving sounds from different places within a sound field and converting the received sounds into a digital signal, a central processing unit (CPU) for encoding and compressing the digital signal, and a storage unit for storing the digital signal therein as an audio file having a stereo effect during being played back by the mobile phone.

Abstract: The present invention discloses a method of using a wireless terminal to instantly receive and play back an audio data from a wireless network server without requiring the user to download and save the audio data into the wireless terminal first. When the wireless terminal requests the wireless network server to download an audio data, the wireless network server divides the audio data into a several batches of data according to the request of the wireless network server. The batches of data are sequentially downloaded to a voice download buffer of the wireless terminal, and then sequentially sent to a voice playback buffer of the wireless terminal after each batch of data is decoded. Thus, achieving the function of immediately and continuously play back the audio data online through the wireless terminal.