backdoor

From: Fabio Miranda (fmirandat_private)
Date: Sat Jun 22 2002 - 20:02:19 PDT

  • Next message: steveg: "Re: backdoor"

    hi, My box was compromised, and i cant rm a binary
    that listens over tcp, i need help support, watch:
    1. %nmap foo
    ....
    898/tcp    open        unknown
    
    2. %nc foo 898
    HTTP/1.0 400 Bad Request
    Date: Sat, 22 Jun 2002 16:36:02 GMT
    Server: Tomcat/2.1
    Content-Type: text/html
    <h1>Error: 400</h1>
    No detailed message
    
    3. %netstat
    ...
    30001303a88 stream-ord 3000108acd8 00000000
    /tmp/smc898/cmdsock
    
    4. % /usr/local/bin/lsof -U
    java    436 root   25u  unix 105,25      0t0 35169
    /devices/pseudo/tl@0:ticots->
    /tmp/smc898/cmdsock (0x30001303a88)
    (Vnode=0x3000108acd8)
    
    5. %find / -inum 35169 -print  -exec ls -sal {} \;
    /var/sadm/pkg/SUNWapdoc
    total 34
       2 drwxr-xr-x   4 root     root         512 Mar 24 
    2001 .
      26 dr-xr-xr-x 680 root     sys        13312 Jun 22
    20:58 ..
       2 drwxr-xr-x   2 root     root         512 Mar 24 
    2001 install
       2 -rw-r--r--   1 root     root         932 Mar 24 
    2001 pkginfo
       2 drwxr-xr-x   2 root     root         512 Mar 24 
    2001 save
    /devices/pseudo/tl@0:ticots
       0 crw-rw-rw-   1 root     sys      105,  0 Mar 24 
    2001 /devices/pseudo/tl@0:
    ticots
    
    
    Ok, What's happening?, I am very confused, the inode
    number fsol show points to a direcroty and a character
    device. How can i stop
     that listening binary?
    
    
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