Thank you. All my files came out clear. Phew.
For anyone else with 5.4c, don't just check the zip hash, since other phoenix downloads (such as mine) came with a bunch of .bat files for different pools. Instead extract it and check the 4 files individually

For 5.4c here are the hashes you should get

SHA256 hash of EIO.dll:
287e44f5067a4e770e8a0605f5720d3d1477ecc4aa4f3a26ce5d3a489ae79780

SHA256 hash of EIO.exe:
402438684406d1e3b2d1d5629151259ad864ffc55c8e6ab176f4c47c543d4fee

SHA256 hash of IOMap64.sys:
ad20e44954960278ad965b05e8c67d9d314c200809b99b1b5a219a916ce06b21

SHA256 hash of PhoenixMiner.exe:
5b4e725e584e67fc5831481d42a999b81e99acbbbb1df8f5054300daccb4409f

This only applies to version 5.4c and any version after or before that would probably have will have a different hash for PhoenixMiner.exe (but not the other 3 files) if I'm not mistaken.

Cheers