But there is a way to avoid it, that is encrypting the Keylogger with encryption software with will spare it from detecting by most of anti-viruses.The Software that I have found is UD Crypter software: that you can download from
Step 1: Download the software
Step 2: Extract the Zip file to obtain FUD Crypter free software.
Step 3. Run Krypter.exe application on your computer system.
Step 4. Now, browse to the file ( keylogger or any Trojan ) you want crypt to bypass antivirus detection and hit on "Encrypt".
Step 5. A new file will be created in same directory. Now, scan this file with your antivirus and it will not detect any virus (except Avira and Kaspersky).
Enjoy and don't for get to share it with your friends