Greetings, guys!
I want to sincerely thank everyone who responded and decided to help solve the problem! Thank you very much!
I apologize for expressing thoughts with a somewhat inaccurate form. English is not my native language, so there are some difficulties in building sentences.
I am very surprised to receive information that our site contained malicious code. It is not true. There could not be any dangerous files referenced by the developers there, since as an administrator of the site I closely monitor its content.
The application (Gridis-KS.exe) is referred to by antiviruses and marked as malicious, in fact it is not! And I do not understand why, due to some imaginary threats, antiviruses respond incorrectly to a self-extracting archive. It's more than weird. This file has now been deleted from the server.
However, our site is still marked as malicious and blocked by antivirus (((