Rules Tuning

[nasbench]

Summary of the Pull Request

This PR tune some false positives found in the wild as well as offer some updates to increase coverage of some rules.

Changelog

fix: Dllhost.EXE Initiated Network Connection To Non-Local IP Address - Add additional filter
fix: Outbound RDP Connections Over Non-Standard Tools - Update filters
fix: Rundll32 Execution With Uncommon DLL Extension - Error in filter logic
remove: Suspicious Non-Browser Network Communication With Reddit API
update: BITS Transfer Job Download From File Sharing Domains - Add additional domains
update: Dfsvc.EXE Initiated Network Connection Over Uncommon Port - Update image and list of ports
update: HH.EXE Initiated HTTP Network Connection - Update list of ports
update: Microsoft Binary Suspicious Communication Endpoint - Enhance list of paths and filters
update: Msiexec.EXE Initiated Network Connection Over HTTP - Update destination ports
update: Network Connection Initiated To Mega.nz - Update domains
update: Office Application Initiated Network Connection Over Uncommon Ports - Update list of ports
update: Office Application Initiated Network Connection To Non-Local IP - update list of filters
update: Potential Dead Drop Resolvers - Update domains and filters
update: Remote CHM File Download/Execution Via HH.EXE - Enhance logic
update: Suspicious Download From File-Sharing Website Via Bitsadmin - Add additional domains
update: Suspicious File Download From File Sharing Domain Via Curl.EXE - Add additional domains
update: Suspicious File Download From File Sharing Websites - Add additional domains
update: Suspicious File Downloaded From File-Sharing Website Via Certutil.EXE - Add additional domains
update: Suspicious Remote AppX Package Locations - Add additional domains
update: Unusual File Download From File Sharing Websites - Add additional domains

Example Log Event

N/A

Fixed Issues

Fixes #4708 - Thanks @omaramin17

SigmaHQ Rule Creation Conventions

• If your PR adds new rules, please consider following and applying these conventions

[nasbench]

Merging this without a true 2nd review for release reasons. But it'll be reviewed later by @phantinuss