June 14, 2021


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Resilient and Adaptive Framework for Large Scale Android Malware Fingerprinting using Deep Learning and NLP Techniques. (arXiv:2105.13491v1 [cs.CR])

Android malware detection is a significat problem that affects billions of
users using millions of Android applications (apps) in existing markets. This
paper proposes PetaDroid, a framework for accurate Android malware detection
and family clustering on top of static analyses. PetaDroid automatically adapts
to Android malware and benign changes over time with resilience to common
binary obfuscation techniques. The framework employs novel techniques
elaborated on top of natural language processing (NLP) and machine learning
techniques to achieve accurate, adaptive, and resilient Android malware
detection and family clustering. PetaDroid identifies malware using an ensemble
of convolutional neural network (CNN) on proposed Inst2Vec features. The
framework clusters the detected malware samples into malware family groups
utilizing sample feature digests generated using deep neural auto-encoder. For
change adaptation, PetaDroid leverages the detection confidence probability
during deployment to automatically collect extension datasets and periodically
use them to build new malware detection models. Besides, PetaDroid uses
code-fragment randomization during the training to enhance the resiliency to
common obfuscation techniques. We extensively evaluated PetaDroid on multiple
reference datasets. PetaDroid achieved a high detection rate (98-99% f1-score)
under different evaluation settings with high homogeneity in the produced
clusters (96%). We conducted a thorough quantitative comparison with
state-of-the-art solutions MaMaDroid, DroidAPIMiner, MalDozer, in which
PetaDroid outperforms them under all the evaluation settings.