The purpose of a reverse shell is to obtain the command prompt of the computer system so that attackers can misuse them as per their needs. There are many different reverse shells available, and the most commonly known and stable has been the windows/meterpreter/reverse_tcp payload. The problem with windows/meterpreter/reverse_tcp payload is that this payload gets easily detected by the antivirus solutions to avoid this detection as part of our red team research we have created a custom payload which is able to bypass BitDefender Total Security Antivirus & capable of providing reverse meterpreter shell.
It is clear that Antiviruses do protect us from various threats & attacks and it is always recommened to invest in a good antivirus for your security in cyberspace. However, Antiviruses can not protect us from ZeroDay attacks plus a specially designed malware can bypass AVs. From an enduser prespective it is always advised not to download files and binaries from untrusted sources & we should think twice before double clicking any file/binary.