I would not expect the IPS to block this kind of malware.
This is more a task for the AV-engine or the Sky ATP file emulation service combined with the threatfeed for C&C servers (actually I do not know if C&C for crypto miners are in this category, you will have to ask Juniper SE's to get this information).
It could also to some extend be accomplished by the enhanced webfilter blocking categories like "Compromised Websites", "Suspicious Content", "Bot Networks", "Potentially Unwanted Software" or similar.
(all categories are listed here: https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/security-edit-category-web-filtering.html)
If both AV and Sky ATP should have a chance catching this malware, I would also expect you should run ssl forward proxy on the SRX gateway to be able to scan https traffic.
Sky ATP threatfeeds and Enhanced webfilter will work without ssl forward proxy.
I hope this clarifies your options to mitigate this kind of threat.