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js seeker virus, can't repair

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Name: stayczhere31
Date: May 22, 2002 at 10:38:51 Pacific
Comment:

I just got a js seeker virus and my norton couldn't repair it , only quarantine it. I tried to submit it to them for analysis but for some reason it wouldn't send. So does anyone know what I should now? Can I just try and delete the file? Is it ok just quaratined? Does anyone know what this virus is capable of? I know, a lot of questions!!! Thanks in advance!!!



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Response Number 1
Name: jds
Date: May 22, 2002 at 11:36:32 Pacific
Reply:

This is some information from www.symantec.com 's website about this type of virus. Hope it helps.

JS.Seeker
Discovered on: December 15, 2000
Last Updated on: April 15, 2002 at 05:01:54 PM PDT



JS.Seeker is a Trojan horse program that alters the default startup and search pages of your Web browser.

The Trojan horse sometimes arrives as a file named Runme.hta. This file runs only if the Windows Scripting Host is installed.

Type: Trojan Horse


Virus Definitions (Intelligent Updater)*
December 19, 2000


*
Intelligent Updater virus definitions are released daily, but require manual download and installation.
Click here to download manually.

**
LiveUpdate virus definitions are usually released every Wednesday.
Click here for instructions on using LiveUpdate.


Wild:

Number of infections: More than 1000
Number of sites: More than 10
Geographical distribution: Low
Threat containment: Easy
Removal: Easy
Threat Metrics


Wild:
High
Damage:
Low
Distribution:
Low


Damage:

Payload:
Modifies files: Registry
Distribution:

Name of attachment: Runme.hta
Size of attachment: 3 to 5 K


When JS.Seeker is executed, it makes changes to the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\Start Page
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\Search Bar
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\Default_Page_URL
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\Default_Search_URL
HKEY_CURRENT_USER\Software\Netscape\Netscape Navigator\Main\Home Page

The original registry values are saved in the \Windows folder as Backup1.reg and Backup2.reg .

The Trojan horse creates the file Homereg111.reg in the \Windows folder and sets the previously mentioned registry keys to its own values. It then runs Removeit.hta, which deletes the file Runme.hta from the C:\Windows\Start Menu\Programs\Startup folder.

JS.Seeker also creates the Prefs.js file in the \Windows folder. This is a JavaScript file that changes Netscape Preferences to its own.


Symantec Security Response encourages all users and administrators to adhere to the following basic security "best practices":

Turn off and remove unneeded services. By default, many operating systems install auxiliary services that are not critical, such as an FTP server, a telnet server, and a Web server. These services are avenues of attack. If they are removed, blended threats have less avenues of attack and you have fewer services to maintain through patch updates.
If a blended threat exploits one or more network services, disable, or block access to, those services until a patch is applied.
Always keep your patch levels up-to-date, especially on computers that host public services and are accessible through the firewall, such as HTTP, FTP, mail, and DNS services.
Enforce a password policy. Complex passwords make it difficult to crack password files on compromised computers. This helps to prevent or limit damage when a computer is compromised.
Configure your email server to block or remove email that contains file attachments that are commonly used to spread viruses, such as .vbs, .bat, .exe, .pif and .scr files.
Isolate infected computers quickly to prevent further compromising your organization. Perform a forensic analysis and restore the computers using trusted media.
Train employees not to open attachments unless they are expecting them. Also, do not execute software that is downloaded from the Internet unless it has been scanned for viruses. Simply visiting a compromised Web site can cause infection if certain browser vulnerabilities are not patched.

To remove JS.Seeker you need to:
Run a full system scan and delete any files that are detected as infected.
Delete the Homereg111.reg and Prefs.js files.
Restore original settings by merging Backup1.reg and Backup2.reg into the registry.

For instructions on how to do this, see the sections that follow.

To run a full system scan:
1. Make sure that Norton AntiVirus is set to scan all files.
2. Run a complete system scan.
3. Delete all files found to be infected with JS.Seeker.

To find and delete the Homereg111.reg and Prefs.js files:
1. Click Start, point to Find, and click Files or Folders.
2. Make sure that Look in is set to (C:) and that Include subfolders is checked.
3. In the Named box, type the following file names:

homereg111.reg prefs.js

4. Click Find Now. Windows will find the files (if they exist) and display them in the lower pane of the Find dialog box.
5. Select each displayed file, press Delete, and click Yes to confirm.
6. Leave the Find: All Files window open, and go on to the next section.

To find and merge Backup1.reg and Backup2.reg into the registry:
1. Click New Search, and click OK to confirm.
2. Make sure that Look in is set to (C:) and that Include subfolders is checked.
3. In the Named box, type the following file names:

backup1.reg backup2.reg

4. When found, double-click each of these files to restore the registry settings.
5. Once the registry has been restored and the computer is working correctly, delete Backup1.reg and Backup2.reg.



Additional information:

There are other things that you can do to protect your system from this type of Trojan Horse.

Script Blocking

If you are using Norton AntiVirus 2001, a free program update that includes Script Blocking is available. Please run LiveUpdate to obtain this.
For other versions of Norton AntiVirus, SARC offers a tool to disable the Windows Scripting Host.


Install the Microsoft patch
This worm takes advantage of a known Microsoft Outlook/Outlook Express security hole. Microsoft has provided a patch for this security hole at http://www.microsoft.com/technet/security/bulletin/MS99-032.asp




0

Response Number 2
Name: Tim
Date: May 22, 2002 at 22:27:52 Pacific
Reply:

DELETE IT!


0

Response Number 3
Name: stayczhere31
Date: May 23, 2002 at 13:38:46 Pacific
Reply:

Thanks for that indepth explanation!!! I did end up just deleting the file. I have zone alarm pro, and I had all patches installed and all my defenitions were up to date. Some times you think you have done enough to keep the crap out and then BAM!!! There it is in big bright red letters!!! Live and learn, I guess it could have been alot worse though. I did full system scan after delete and it says I'm infection free. I used NAV and housecall. I know, paranoid!!! Can anyone be too careful though?!!! Thanks again for the help and like I said so far so good!!!


0

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