chkrootkit: shell script that checks system binaries for rootkit modification.

How To Install CHKROOTKIT

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The following tests are made:
aliens asp bindshell lkm rexedcs sniffer wted w55808 scalper slapper z2 amd basename biff chfn chsh cron date du dirname echo egrep env find fingerd gpm grep hdparm su ifconfig inetd inetdconf init identd killall ldsopreload login ls lsof mail mingetty netstat named passwd pidof pop2 pop3 ps pstree rpcinfo rlogind rshd slogin sendmail sshd syslogd tar tcpd tcpdump top telnetd timed traceroute vdir w write

1. Login to your server as root. (SSH)

2. Down load the chkrootkit.
Type: wget ftp://ftp.pangeia.com.br/pub/seg/pac/chkrootkit.tar.gz

3. Unpack the chkrootkit you just downloaded.
Type: tar xvzf chkrootkit.tar.gz

4. Change to new directory

Type: cd chkrootkit*

5. Compile chkrootkit
Type: make sense

6. Run chkrootkit
Type: ./chkrootkit

If it says “Checking `bindshell’… INFECTED (PORTS: 465)”

This is normal and it is NOT really a virus.