RE: Suspicious joe.exe

From: Petruzel, Oliver (OliverPat_private)
Date: Thu Aug 02 2001 - 08:23:33 PDT

  • Next message: Markus Kern: "Re: KaZaA + Morpheus sharing files"

    Well, the kaiten.c DDoS comes to mind.  it's an updated knight.c DoS that
    someone has simply renamed to joe when they compiled it...or maybe they
    added to it.
    
    basically, from what i know of it (which is admittedly very little since ive
    never seen it near me) is that you've been zombie-fied.  for IRC DDoS.  I
    also dont know the "cleaning" process offhand, but im sure symantec or
    someone has one since the source for kaiten.c is readily available
    everywhere. (packetstorm)
    
    do me a favor, plz analyze it with everything you can get your hands on.
    just to make sure "joe" didnt add to kaiten.  I would check your logs and
    start from there... shouldnt be too hard since the box is 2 weeks old,
    right?  If you need help analyzing the logs, ill help any way i can.  we all
    will :)
    
    but you've most certainly been compromised = my guess.
    
    1. is it a production box? internet facing? web server?  what is it?...
    
    -oliver p.
    
    
    > -----Original Message-----
    > From: Reb [mailto:rebat_private]
    > Sent: Thursday, August 02, 2001 1:22 AM
    > To: VULN-DEV List
    > Subject: Suspicious joe.exe
    > 
    > 
    > Greetings all,
    > 
    > While troubleshooting a problem with Win2k server doing a 
    > hard lock ( no
    > response to keyboard/mouse) I happened upon the Run key
    > (SOFTWARE\Microsoft\Windows\CurrentVersion\Run\) and noticed 
    > that joe.exe
    > was being started.  Being that this box was no more than 2 
    > weeks old I found
    > this highly odd since it wasn't being loaded as a service and 
    > whatnot.  So
    > I'm done dealing with the 2k server hang for a bit and I 
    > start looking at
    > this file. After I've googled and bugtraq'd my way around I can't find
    > anything that mentions such a Trojan/virus. It seems to be 
    > some type of irc
    > client that connects to 205.188.253.230 and joins #penr0x, 
    > which is +I.  If
    > asked I can gzip/zip up the file and send it to someone.  If 
    > anyone has any
    > insight to this I'd love to hear from you. Here's a bit of 
    > information on
    > the exe.
    > 
    > [reb@ reb]$ ls -al joe.exe
    > -rw-r--r--   1 reb      reb         53248 Aug  1 17:58 joe.exe
    > [reb@ reb]$ md5sum joe.exe
    > 488c80ba0b2186a1ba52c4e69c590bc6  joe.exe
    > 
    > Some of the more useful strings from `strings joe.exe` are:
    > 
    > Microsoft Visual C++ Runtime Library
    > Runtime Error!
    > Program:
    > <program name unknown>
    > SunMonTueWedThuFriSat
    > JanFebMarAprMayJunJulAugSepOctNovDec
    > GetLastActivePopup
    > GetActiveWindow
    > MessageBoxA
    > NICK
    > VERSION
    > KILL
    > HELP
    > PRIVMSG
    > PING
    > NOTICE %s :DNS <host>
    > NOTICE %s :Resolving %s...
    > NOTICE %s :Unable to resolve.
    > NOTICE %s :Resolved to %s.
    > NOTICE %s :GET <host> <save as>
    > NOTICE %s :Unable to create socket.
    > http://
    > NOTICE %s :Unable to resolve address.
    > NOTICE %s :Unable to connect to http.
    > GET /%s HTTP/1.0
    > Connection: Keep-Alive
    > User-Agent: Mozilla/4.75 [en] (X11; U; Linux 2.2.16-3 i686)
    > Host: %s:80
    > Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, 
    > image/png, */*
    > Accept-Encoding: gzip
    > Accept-Language: en
    > Accept-Charset: iso-8859-1,*,utf-8
    > NOTICE %s :Receiving file.
    > NOTICE %s :Saved as %s
    > NOTICE %s :Voyager Alpha Force: Age of Kaiten
    > NOTICE %s :NICK <nick>
    > NOTICE %s :Nick cannot be larger than 9 characters.
    > NICK %s
    > NOTICE %s :UDP <target> <secs>
    > NOTICE %s :GET <http address> <save as> = Downloads a file off the
    > web and saves it onto the hd
    > NOTICE %s :NICK <nick> = Changes the nick of the knight
    > NOTICE %s :DNS <host> = DNSs a host
    > NOTICE %s :IRC <command> = Sends this command to the server
    > NOTICE %s :KILL = Kills the knight
    > NOTICE %s :VERSION = Requests version of knight
    > NOTICE %s :HELP = Displays this
    > IRC
    > SYSTEM
    > HIDE
    > SHOW
    > MODE %s -xi
    > JOIN %s :
    > WHO %s
    > PONG %s
    > SOFTWARE\Microsoft\Windows\CurrentVersion\Run\
    > TaskReg
    > #penr0x
    > 205.188.253.230
    > NICK %s
    > USER %s localhost localhost :%s
    > ERROR
    > 
    > 
    > Reb
    > 
    



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