To cite package 'virustotal' in publications use:

Sood G (2021). virustotal: R Client for the virustotal API. R package version 0.2.2.

Corresponding BibTeX entry:

  @Manual{,
    title = {virustotal: R Client for the virustotal API},
    author = {Gaurav Sood},
    year = {2021},
    note = {R package version 0.2.2},
  }