Re: Can Viruses Do The Following . . (Hide on a system and unzip
- From: HelenD <HelenD@xxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Tue, 13 Mar 2007 19:01:06 -0700
Hi David,
Our IT Deparment says that it is not possible for zip files (unzipped at
180MB) of data to have come through the firewall without being detected.
AND, it is also not possible that this large volume of files could have sat
on the C:\ without being picked up.
Not sure how they are scanning - but if they are scanning for a volume
retrospectively, how could they be sure?
I'd really appreciate your comments.
Helen
"David H. Lipman" wrote:
From: "HelenD" <HelenD@xxxxxxxxxxxxxxxxxxxxxxxxx>.
| Microsoft Windows XP Professional V2002 SP2
| Symantec Client Firewall Version 7.1.3.1039
| Symantec AntiVirus Version 9.0.3.1000
| Microsoft ActiveSync V4.1
| Internet Download Accelerator
|
| A few days ago 2245 *.JPEG Files appeared on my computer. The total volume
| equated to 180MB. The files were pornographic in nature. They appeared to
| 'unzip' near midnight, when the computer was turned on - but I wasn't logged
| onto it - and I was not connected to the internet. When a work colleauge of
| mine was using my machine, she clicked on a couple of files eg/ woman2.png.
| These files opened folders i.e. Temporary Directory 1
| ix_fs_all.zip/24x24/shadow. Neither the folders nor the *.png files were
| able to be seen in the directory listing. AND the 2245 *.JPEG files were
| visible in the directory listing, but were not visible in the windows
| explorer environment - unless the 'Hide protected operating system files'
| options was not selected. Further, she clicked on one file twice and it
| created two lots of Temporary Directories as opposed to re-using the one it
| had already created.
|
< snip >
Yes, Malware is at is the root. Maybe not a virus but definitely malware.
If you are using any version of Sun Java that is prior to JRE Version 6.0,
then you are strongly urged to remove any/all versions.
There are numerous vulnerabilities in them and they are actively being exploited.
It is highly suggested that you update to the latest version which is Sun Java JRE/JSE
Version 6.0
Simple check, look under...
C:\Program Files\Java
The only folder under that folder should be the latest version.
Such as...
C:\Program Files\Java\jre1.6.0
http://java.sun.com/javase/downloads/index.jsp
http://www.java.com/en/download/manual.jsp
FYI:
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102557-1
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102622-1
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102648-1
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102729-1
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102732-1
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102760-1
For non-viral malware...
Please download, install and update the following software...
* Ad-aware SE v1.06
http://www.lavasoft.de/
http://www.lavasoftusa.com/
http://www.lavasoft.de/ms/index.htm
* SpyBot Search and Destroy v1.4
http://security.kolla.de/
http://www.safer-networking.org/microsoft.en.html
* SuperAntiSpyware
http://www.superantispyware.com/superantispywarefreevspro.html
After the software is updated, I suggest scanning the system in Safe Mode.
I also suggest downloading, installing and updating BHODemon for any Browser Helper Objects
that may be on the PC.
* BHODemon
http://www.majorgeeks.com/downloadget.php?id=3550&file=11&evp=245a87539eea8ed6904332b4b8b8442d
For viral malware...
* Download MULTI_AV.EXE from the URL --
http://www.ik-cs.com/programs/virtools/Multi_AV.exe
To use this utility, perform the following...
Execute; Multi_AV.exe { Note: You must use the default folder C:\AV-CLS }
Choose; Unzip
Choose; Close
Execute; C:\AV-CLS\StartMenu.BAT
{ or Double-click on 'Start Menu' in C:\AV-CLS }
NOTE: You may have to disable your software FireWall or allow WGET.EXE to go through your
FireWall to allow it to download the needed AV vendor related files.
C:\AV-CLS\StartMenu.BAT -- { or Double-click on 'Start Menu' in C:\AV-CLS}
This will bring up the initial menu of choices and should be executed in Normal Mode.
This way all the components can be downloaded from each AV vendor's web site.
The choices are; Sophos, Trend, McAfee, Kaspersky, Exit this menu and Reboot the PC.
You can choose to go to each menu item and just download the needed files or you can
download the files and perform a scan in Normal Mode. Once you have downloaded the files
needed for each scanner you want to use, you should reboot the PC into Safe Mode [F8 key
during boot] and re-run the menu again and choose which scanner you want to run in Safe
Mode. It is suggested to run the scanners in both Safe Mode and Normal Mode.
When the menu is displayed hitting 'H' or 'h' will bring up a more comprehensive PDF help
file. http://www.ik-cs.com/multi-av.htm
Additional Instructions:
http://pcdid.com/Multi_AV.htm
* * * Please report back your results * * *
--
Dave
http://www.claymania.com/removal-trojan-adware.html
http://www.ik-cs.com/got-a-virus.htm
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