I turn on the system again and this is what appears:
root@mini:~# ps auxww | grep mrjehjtnwa
root 3770 0.0 0.0 8996 876 pts/1 S+ 11:04 0:00 grep mrjehjtnwa
root@mini:~# ps auxww | grep 2048
root 2048 98.1 0.0 33608 276 ? Ssl 11:00 4:15 sh
root 3891 0.0 0.0 9000 876 pts/1 S+ 11:05 0:00 grep 2048
root@mini:~# ps axo pid,command,args | grep 2048
2048 sh sh
4058 grep 2048 grep 2048
---------------------------------------------
once again, if I kill the process exactly in this moment:
an again:
root@mini:~# ps auxww | grep ymbtnsjkys
root 4884 0.0 0.0 8996 880 pts/1 S+ 11:19 0:00 grep ymbtnsjkys
root@mini:~# ps auxww | grep 4060
root 4060 97.9 0.0 33608 276 ? Ssl 11:15 4:35 ps -ef
root 4991 0.0 0.0 8996 876 pts/1 S+ 11:20 0:00 grep 4060
root@mini:~# ps axo pid,command,args | grep 4060
4060 ps -ef ps -ef
5167 grep 4060 grep 4060