Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

Trojan Viruses On My Computer


  • Please log in to reply
3 replies to this topic

#1 daffernee

daffernee

  • Members
  • 3 posts
  • OFFLINE
  •  
  • Local time:09:20 PM

Posted 01 February 2008 - 10:55 AM

Please help...I have these files on my computer and am trying to get rid of them. One of them is causing an annoying popup about every 5 minutes that says I need update my registry and to download "registryupdate.com" They are:

Trojan:Win32/Drastwor:A
Win32/Malagent
Win32/Patched.J
Win32/Virantix.A
Win32/Vundo.gen!A
Win32/Wantvi.F

Trojan Downloader:Java/Agent.A
Win32/Agent
Win32/Agent.ADe
Win32/Fomish
Win 32/Nonaco.E
Win32/Renos

Virun: Win32/Trats.C

Exploit: JS/Heapspray.gen!A
Java/Byteverify.B
Java/Byteverigy.C

BC AdBot (Login to Remove)

 


#2 quietman7

quietman7

    Bleepin' Janitor


  • Global Moderator
  • 51,117 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Virginia, USA
  • Local time:11:20 PM

Posted 01 February 2008 - 11:04 AM

Please follow the the instructions for using Vundofix in BC's self-help tutorial: "How To Remove Vundo/Winfixer Infection".
After running VundoFix, a text file named vundofix.txt will have automatically been saved to the root of the system drive, usually at C:\vundofix.txt. Please copy & paste the contents of that text file into your next reply.

Please download ATF Cleaner by Atribune & save it to your desktop. DO NOT use yet.
Please download Dr.Web CureIt & save it to your desktop. DO NOT perform a scan yet.

Reboot your computer in "Safe Mode" using the F8 method. To do this, restart your computer and after hearing your computer beep once during startup (but before the Windows icon appears) press the F8 key repeatedly. A menu will appear with several options. Use the arrow keys to navigate and select the option to run Windows in "Safe Mode".

Double-click ATF-Cleaner.exe to run the program.
  • Under Main "Select Files to Delete" choose: Select All.
  • Click the Empty Selected button.
  • If you use Firefox browser click Firefox at the top and choose: Select All
  • Click the Empty Selected button.
    If you would like to keep your saved passwords, please click No at the prompt.
  • If you use Opera browser click Opera at the top and choose: Select All
  • Click the Empty Selected button.
    If you would like to keep your saved passwords, please click No at the prompt.
  • Click Exit on the Main menu to close the program.
Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp" ATF-Cleaner must be "Run as an Administrator".

Scan with Dr.Web CureIt as follows:
  • Double-click on cureit.exe to start the program. (ignore any prompts to update or check for a new version)
  • When the Dr.Web opens, an "Express Scan of your PC" notice will appear.
  • Under "Start the Express Scan Now", Click "OK" to start. This is a short scan that will scan the files currently running in memory and when something is found, click the Yes button when it asks you if you want to cure it.
  • Once the short scan has finished, Click Options > Change settings
  • Choose the "Scan tab" and UNcheck "Heuristic analysis"
  • Back at the main window, click "Custom Scan", then Select drives (a red dot will show which drives have been chosen).
  • Then click the "Start/Stop Scanning" button (green arrow on the right) and the scan will start.
  • When done, a message will be displayed at the bottom advising if any viruses were found.
  • Click "Yes to all" if it asks if you want to cure/move the file.
  • When the scan has finished, look if you can see the icon next to the files found. If so, click it, then click the next icon right below and select "Move incurable".
    (This will move it to the C:\Documents and Settings\userprofile\DoctorWeb\Quarantine folder if it can't be cured)
  • Next, in the Dr.Web CureIt menu on top, click file and choose save report list.
  • Save the DrWeb.csv report to your desktop. (You can use Notepad to open the DrWeb.cvs report)
  • Exit Dr.Web Cureit when done.
  • Important! Reboot your computer because it could be possible that files in use will be moved/deleted during reboot.
  • After reboot, post the contents of the log from Dr.Web in your next reply.
Then perform an Online Virus Scan like BitDefender.
(These require Internet Explorer to work. Watch the Address bar in IE. You may receive alerts that "This site might require the following ActiveX control...Click here to install...". Click on that alert and then Click Install ActiveX component. If given the option, choose "Quarantine" instead of delete.)
.
.
Windows Insider MVP 2017-2018
Microsoft MVP Reconnect 2016
Microsoft MVP Consumer Security 2007-2015 kO7xOZh.gif
Member of UNITE, Unified Network of Instructors and Trusted Eliminators

If I have been helpful & you'd like to consider a donation, click 38WxTfO.gif

#3 daffernee

daffernee
  • Topic Starter

  • Members
  • 3 posts
  • OFFLINE
  •  
  • Local time:09:20 PM

Posted 04 February 2008 - 12:15 PM

Thank you so much for your quick reply and for the help. I will try this and let you know what happens!!!!

#4 quietman7

quietman7

    Bleepin' Janitor


  • Global Moderator
  • 51,117 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Virginia, USA
  • Local time:11:20 PM

Posted 04 February 2008 - 12:56 PM

Ok.

I forgot to address this.

Java.ByteVerify is actually a method to exploit a security vulnerability in the Microsoft Virtual Machine that is stored in the java cache as a java-applet. The vulnerability arises as the ByteCode verifier in the Microsoft VM does not correctly check for the presence of certain malformed code when a java-applet is loaded. Attackers can exploit the vulnerability by creating malicious Java applets and inserting them into web pages that could be hosted on a web site or sent to users as an attachment. Trojan Exploit ByteVerify indicates that a Java applet - a malicious Java archive file (JAR) - was found on your system containing the exploit code.

When a browser runs an applet, the Java Runtime Environment (JRE) stores all the downloaded files into its cache directory for better performance. Microsoft stores the applets in the Temporary Internet Files. The Java.ByteVerify will typically arrive as a component of other malicious content. An attacker could use the compiled Java class file to execute other code...Notification of infection does not always indicate that a machine has been infected; it only indicates that a program included the viral class file. This does not mean that it used the malicious functionality.

These malicious applets are designed to exploit vulnerabilities in the Microsoft VM (Microsoft Security Bulletin MS03-011). If you are using the Sun JVM as your default virtual machine, these malicious applets cannot cause any harm to your computer. See: here.

AVG, eTrust EZ Antivirus, Pest Patrol and others will find Java/ByteVerify but cannot get rid of them. If you have the Java-Plugin installed, then deleting them from the Java cache should eliminate the problem. The Java Plug-In in the Control Panel is only present if you are using Sun's Java. If you don't have the Java-Plugin installed then just delete the files manually. The Microsoft Virtual machine stores the applets in the Temporary Internet Files.

Recommended Solution:
If your using Sun Java, Clear the Java Runtime Environment (JRE) Cache.
If your using IE, Netscape, Mozilla, Opera, or AOL, Clear your Web Browser Cache.

However, since I have asked you to use ATFCleaner, it will do this for you.
.
.
Windows Insider MVP 2017-2018
Microsoft MVP Reconnect 2016
Microsoft MVP Consumer Security 2007-2015 kO7xOZh.gif
Member of UNITE, Unified Network of Instructors and Trusted Eliminators

If I have been helpful & you'd like to consider a donation, click 38WxTfO.gif




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users