ActivityShielder: An Activity Hijacking Defense Scheme for Android Devices

摘要: With the growing popularity of smartphones in vast areas, security Android has been a vital pursuit for developers. Among issues Android, Activity hijacking attacks pose severe threat to normal APPs and sensitive input data by exploiting flaws UI management mechanism with high elusiveness extensive harmfulness. However, our best knowledge, existing defenses either only work under particular scenarios or incur obvious false positives. To make up this vacancy, we propose novel defense scheme named "ActivityShielder" tasks. The is designed manage entities it can detect block multiple explicitly. We have developed fully functioning prototype ActivityShielder, evaluation results show that ActivityShielder (1) effectively resist activity avoid positives multi-version systems; (2) minor performance impact (lower than 2%) system.