Antivirus solutions continue to fail us. This talk will highlight my research of the effectiveness of the leading AV solutions. The overall strategy is to create a RAT in every language, then test it against AV. As part of the talk, I will be releasing the source code for the RATs I have built to date (15+ languages) for red teams to use. Additionally, recommendations will be given to AV vendors to solve the issue and to blue teams to protect their environment until the AV vendors catch up.The video from the talk, slides, code and raw AV results are here: https://penconsultants.com/home/presentation-rats-without-borders/