Security Incidents mailing list archives

RE: New Trojan


From: "Tiago Halm" <thalm () netcabo pt>
Date: Sun, 26 Oct 2003 02:03:36 -0000

I believe you can, while you don't find a utility that may help you delete
the ADS, empty the ADS of its data.
Below, there's an example of such action. In this example you'll find an
open source utility named ScanADS available at
http://www.kodeit.org/products/scanads/default.htm that scans ADS in local
and remote machines.

^Z = CTRL + Z
^C = CTRL + C

------------------------------------------------------------------
C:\>mkdir c:\zzz

C:\>mkdir c:\zzz\xxx

C:\>more > c:\zzz\xxx:aaa
a
b
c
^Z

C:\>ScanADS.exe -v -s c:\zzz\

ScanADS 1.1 - Scan Alternate Data Streams
Copyright (C) 2003 Tiago Halm
KodeIT - http://www.kodeit.com

Verbose:     yes
Recursive:   yes
Get Data:    no
Server:      localhost
Path:        c:\zzz\

(1 ADS): c:\zzz\xxx
        (11 bytes) :aaa

C:\>more > c:\zzz\xxx:aaa
^C

C:\>ScanADS.exe -v -s c:\zzz\

ScanADS 1.1 - Scan Alternate Data Streams
Copyright (C) 2003 Tiago Halm
KodeIT - http://www.kodeit.com

Verbose:     yes
Recursive:   yes
Get Data:    no
Server:      localhost
Path:        c:\zzz\

(1 ADS): c:\zzz\xxx
        (0 bytes) :aaa
------------------------------------------------------------------

Hope it helps,
Tiago Halm
http://www.kodeit.org



-----Original Message-----
From: Jay Castaldo [mailto:fupayme2003 () hotmail com]
Sent: Saturday, October 25, 2003 4:18 AM
To: incidents () securityfocus com
Subject: New Trojan




I don't know if this is a new trojan or anything, but I have
tried doing some research on the Internet and couldn't find 
anything on it. Well it has two registry entries in my Run, 
and RunOnce.  Here is the name of both keys acbdhpd and the 
values are pointing to a file1129 I can not seem to find 
rundll32 C:\WINNT\system32:acbdhpd.dll,Init 1.  I tried 
killing my explorer.exe to see if that is reason I can't find 
it because I am most likely using a trojanized explorer.exe, 
but I could only find a copy in my temp, I delete through DOS 
and delete the registry entries to no success, the registry 
keys appear within 30 seconds and the file pops right back 
up.  Anybody seen this or can give me some help to get this 
out without reloading? It has also opened up two TCP, 3799, 
and 41225 and two UDP ports, 1129, 1241.  Thanks


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