Article View: de.comp.security
Article #219Re: Warnung vor Worm.Explore.Zip
From: Christian Kurz
Date: Fri, 11 Jun 1999 00:00
Date: Fri, 11 Jun 1999 00:00
50 lines
3445 bytes
3445 bytes
Hatto von Hatzfeld <hatzfeld@tronet.de> wrote:
> Wenn man die Datei zipped_files.exe dummerweise �ffnet, l�scht das
> Programm *.doc-Dateien auf dem Rechner und verschickt sich als Mail an
> auf dem Rechner zu findenden E-Mail-Adressen.
Nicht nur. Das Cert-Advisory ist da eindeutig genauer:
- - - - - - - - Snip here to damage your screeen - - - - - - - -
Opening the zipped_files.exe file causes the program to execute. At
this time, there is conflicting information about the exact actions
taken by zipped_files.exe when executed. One possible reason for
conflicting information may be that there are multiple variations of
the program being propagated, although we have not confirmed this one
way or the other. Currently, we have the following general information
on actions taken by the program.
* The program searches local and networked drives (drive letters C
through Z) for specific file types and attempts to erase the
contents of the files, leaving a zero byte file. The targets may
include Microsoft Office files, such as .doc, .xls, and .ppt, and
various source code files, such as .c, .cpp, .h, and .asm.
* The program propagates by replying to any new email that is
received by an infected computer. A copy of zipped_files.exe is
attached to the reply message.
* The program creates an entry in the Windows 95/98 WIN.INI file:
run=C:\WINDOWS\SYSTEM\Explore.exe
On Windows NT systems, an entry is made in the system registry:
[HKEY_CURRENT_USER\Software\Microsoft\Windows
NT\CurrentVersion\Windows]
run = "c:\winnt\system32\explore.exe"
* The program creates a file called explore.exe in the following
locations:
Windows 95/98 - c:\windows\system\explore.exe
Windows NT - c:\winnt\system32\explore.exe
This file is a copy of the zipped_files.exe Trojan horse, and the
file size is 210432 bytes.
MD5 (Explore.exe) = 0e10993050e5ed199e90f7372259e44b
We will update this advisory with more specific information as we are
able to confirm details. Please check the CERT/CC web site for the
current version containing a complete revision history.
- - - - - - - - Snip here to damage your screeen - - - - - - - -
Cheers
Christian
--
The inherent vice of capitalism is the unequal sharing of blessings;
the inherent virtue of socialism is the equal sharing of misery.
-- Churchill
/* http://www.rhein-neckar.de/~jupiter/ Christian Kurz */
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X-Google-Language: ENGLISH,ASCII X-Google-Thread: 107e1f,30e769dc775583 X-Google-Attributes: gid107e1f,public X-Google-Thread: 112b94,30e769dc775583 X-Google-Attributes: gid112b94,public From: shorty@jupiter.rhein-neckar.de (Christian Kurz) Subject: Re: Warnung vor Worm.Explore.Zip Date: 1999/06/11 Message-ID: <7jrmn2$e1q$1@jupiter.rhein-neckar.de> X-Deja-AN: 488526844 Content-Transfer-Encoding: 8bit References: <7jrcgl$d48$2@fermi.tro.net> Mail-Copies-To: never Content-Type: text/plain; charset=iso-8859-1 X-Complaints-To: abuse@jupiter.rhein-neckar.de X-Trace: jupiter.rhein-neckar.de 929127970 14394 193.197.90.13 (11 Jun 1999 19:06:10 GMT) Organization: Core dumped User-Agent: slrn/0.9.5.6 (UNIX) Mime-Version: 1.0 NNTP-Posting-Date: 11 Jun 1999 19:06:10 GMT Newsgroups: de.comp.security,fido.ger.virus