The window message said in substance [....modification occurred... it could be a malware trying to communicate... if you trust... allow or deny]...
I rather learn the way to correct the mistakes in the ESET GUI windows. I guess this red window is only firewall related (vs. the AV red window)?...
ESET SS v.3 I got a Red Window notification "... modification zyx/could be a malware attempting..." select Allow/Deny, following an soft...
Separate names with a comma.