Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Obfuscation-resilient Android Malware Analysis Based on Contrastive
  Learning   Due to its open-source nature, Android operating system has been the main
target of attackers to exploit. Malware creators always perform different code
obfuscations on their apps to hide malicious activities. Features extracted
from these obfuscated samples through program analysis contain many useless and
disguised features, which leads to many false negatives. To address the issue,
in this paper, we demonstrate that obfuscation-resilient malware analysis can
be achieved through contrastive learning. We take the Android malware
classification as an example to demonstrate our analysis. The key insight
behind our analysis is that contrastive learning can be used to reduce the
difference introduced by obfuscation while amplifying the difference between
malware and benign apps (or other types of malware).
  Based on the proposed analysis, we design a system that can achieve robust
and interpretable classification of Android malware. To achieve robust
classification, we perform contrastive learning on malware samples to learn an
encoder that can automatically extract robust features from malware samples. To
achieve interpretable classification, we transform the function call graph of a
sample into an image by centrality analysis. Then the corresponding heatmaps
are obtained by visualization techniques. These heatmaps can help users
understand why the malware is classified as this family. We implement IFDroid
and perform extensive evaluations on two widely used datasets. Experimental
results show that IFDroid is superior to state-of-the-art Android malware
familial classification systems. Moreover, IFDroid is capable of maintaining
98.2% true positive rate on classifying 8,112 obfuscated malware samples.

2
The categories of this paper are: math
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol