RE: Suspicious joe.exe

["Haul" <Haul () Terrorists net>]

The joe.exe that you have is a trojan called the Knight..  It is used for DDoS attacks.  It connects to one of ICQ's 
IRC servers,
and waits for commands by the "master" of the zombies.  The master can use your computer to UDP flood a target.  
Fortunately, ICQ
has known about this for some time and restricted access to #penr0x more than two weeks ago, so your computer hasn't 
participated in
any attacks.  You really should get a virus scanner.

> -----Original Message-----
> From: Reb [mailto:reb () viametrix com]
> 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