Public availability of a good data set in PCAP format (TCPDUMP) for IDS / IPS tests

I am trying to pass a reputable malicious traffic from an IPS. There are several sources on the Internet to explore datasets as the oldest set that I think DARPA (not available in pcap format and not as efficient for modern use) or NSL-KDD data set, etc. examine. However, none of them has a data set available in pcap format. Is there any reputable data set available in PCAP or TCPDUMP or convertible to PCAP?

Thank you.