Re: https://urlhaus.abuse.ch/url/297962/ because of downloading “elf”.
See: https://www.shodan.io/host/218.21.170.6
Telnet vulnerability: https://www.hackingarticles.in/penetration-testing-telnet-port-23/
Re: https://www.techrepublic.com/article/protect-your-network-from-this-telnet-vulnerability/
See various abuse attempts: https://viz.greynoise.io/ip/218.21.170.6
detecting solutions: https://www.virustotal.com/gui/url/b8aee68c7ba0b01e1cf6381ff46711732d0176d73b27c936426d15b4058c5646/detection
detected url’s: https://www.virustotal.com/gui/ip-address/218.21.170.6/relations
pol