iMazing's spyware detection tool is available as a free feature in iMazing 2.14 and above. It can be used to detect signs of infection by NSO's Pegasus and has the potential to evolve to detect other threats. The methodology implemented closely mirrors that of the open-source Mobile Verification Kit by Amnesty International's Security Lab. The ability for the user to customize the analyzer by providing indicators of compromise in STIX format may be useful for early investigations of future threats. For more context on the development of iMazing's spyware detection tool, please refer to this blog post.
More details here https://imazing.com/guides/detect-pegasus-and-other-spyware-on-iphone