ISC StormCast for Tuesday, August 3rd, 2021

Unsolicited DNS Queries
https://isc.sans.edu/forums/diary/Unsolicited+DNS+Queries/27694/
Changing BAT Files on the Fly
https://isc.sans.edu/forums/diary/Changing+BAT+Files+On+The+Fly/27700/
Empty NPM Package has Over 700,000 Downloads
https://www.bleepingcomputer.com/news/software/empty-npm-package-has-over-700-000-downloads-heres-why/
Blocking PetitPotam with netsh RPC Filters
https://twitter.com/gentilkiwi/status/1421949715986403329
Pneumatic Tube Vulnerabilities
https://www.blackhat.com/us-21/briefings/schedule/index.html#a-hole-in-the-tube-uncovering-vulnerabilities-in-critical-infrastructure-of-healthcare-facilities-23546