Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Understanding Money Trails of Suspicious Activities in a
  cryptocurrency-based Blockchain   The decentralization, redundancy, and pseudo-anonymity features have made
permission-less public blockchain platforms attractive for adoption as
technology platforms for cryptocurrencies. However, such adoption has enabled
cybercriminals to exploit vulnerabilities in blockchain platforms and target
the users through social engineering to carry out malicious activities. Most of
the state-of-the-art techniques for detecting malicious actors depend on the
transactional behavior of individual wallet addresses but do not analyze the
money trails. We propose a heuristics-based approach that adds new features
associated with money trails to analyze and find suspicious activities in
cryptocurrency blockchains. Here, we focus only on the cyclic behavior and
identify hidden patterns present in the temporal transactions graphs in a
blockchain. We demonstrate our methods on the transaction data of the Ethereum
blockchain. We find that malicious activities (such as Gambling, Phishing, and
Money Laundering) have different cyclic patterns in Ethereum. We also identify
two suspicious temporal cyclic path-based transfers in Ethereum. Our techniques
may apply to other cryptocurrency blockchains with appropriate modifications
adapted to the nature of the crypto-currency under investigation.

16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph