Post #113 782 Mar 17, 2022, 08:52 UTC B1txor20, A Linux Backdoor Using DNS Tunnel.https://blog.netlab.360.com/b1txor20-use-of-dns-tunneling_en 360 Netlab Blog - Network Security Research Lab at 360 New Threat: B1txor20, A Linux Backdoor Using DNS Tunnel Background Since the Log4J vulnerability was exposed, we see more and more malware jumped on the wagon, Elknot, Gafgyt, Mirai are all too familiar, on February 9, 2022, 360Netlab's honeypot system captured an unknown ELF file propagating through the Log4J…