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caribbeansun

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Received the following pop-up this morning:

Trojan.Win32.Generic!BT
c:\users\user\appdata\local\mciuser80\confnetwan.dll

Tried quarantining the dll file, system restart, pop-up saying the dll file wasn't found.

- I couldn't detect any issue despite the removal of the dll file other than the annoying pop-up.
- removed the file from quarantine, no pop-up but Ad-aware flagged it again
- can't find anything in regard to what "mciuser80" is
- can't find anything in regard to what "confnetwan.dll" is

Should I be concerned or should I place this on my ignore list for the time being?

Thanks in advance

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Hi,

A few logs need to be created to see if there's something bad going on in your system.

Download DDS and save it to your desktop from [url=http://download.bleepingcomputer.com/sUBs/dds.com][b][color=seagreen]here[/color][/b][/url] or [url=http://download.bleepingcomputer.com/sUBs/dds.scr][b][color=seagreen]here[/color][/b][/url] or [url=http://www.forospyware.com/sUBs/dds][b][color=seagreen]here[/color][/b][/url].
Disable any script blocker, and then double click [b]dds file [/b]to run the tool. [list]
[*]When done, DDS will open two (2) logs: [list=1]
[*] DDS.txt
[*] Attach.txt
[/list]
[*]Save both reports to your desktop. Post them back to your topic.
[/list]

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Hi,

* Go [url=http://www.eset.eu/online-scanner][color=red][b][u]here[/u][/b][/color][/url] to run an online scanner from ESET.[list]
[*][color=red][b]Note:[/b][/color] You will need to use [color=blue][b]Internet explorer[/b][/color] for this scan
[*]Tick the box next to [b]YES, I accept the Terms of Use.[/b]
[*]Click [b]Start[/b]
[*]When asked, allow the activex control to install
[*]Click [b]Start[/b]
[*]Make sure that the option [b]Remove found threats[/b] is UNchecked and the option [b]Scan unwanted applications[/b] is checkmarked.
[*]Click [b]Scan[/b]
[*]Wait for the scan to finish. Copy-paste list of the findings.
[/list]

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Hi,

Please visit this webpage for download links, and instructions for running ComboFix tool:

[url]http://www.bleepingcomputer.com/combofix/how-to-use-combofix[/url]

[COLOR=Blue]Please ensure you read this guide carefully first.[/COLOR]


Please continue as follows:

[LIST=1]
[*][b]Close/disable all anti virus and anti malware programs so they do not interfere with the running of ComboFix[/b], [url=http://www.bleepingcomputer.com/forums/topic114351.html]link[/url]
Remember to re-enable them afterwards.


[*]Click [B]Yes[/B] to allow ComboFix to continue scanning for malware.
[/LIST]

When the tool is finished, it will produce a report for you.

Please include the following reports for further review, and so we may continue cleansing the system:

[B]C:\ComboFix.txt
New dds log.[/B]

[COLOR=#ff0000][B]A word of warning: Neither I nor sUBs are responsible for any damage you may have caused your machine by running ComboFix. This tool is not a toy and not for everyday use.[/B][/COLOR]

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Hi again,


Open notepad and copy/paste the text in the quotebox below into it:

[code]
Folder::
c:\users\User\AppData\Local\mciUser80
[/code]


Save this as
CFScript

[COLOR=#ff0000][B]A word of warning: Neither I nor sUBs are responsible for any damage you may have caused your machine. This tool is not a toy and not for everyday use.[/B][/COLOR]

[img]http://img.photobucket.com/albums/v666/sUBs/CFScriptB-4.gif[/img]

Close all browser windows and refering to the picture above, drag CFScript into ComboFix.exe (let the tool to update itself if prompted).
Then post the resultant log.



Uninstall vulnerable [b]Flash [/b]versions by following instructions [url=http://kb2.adobe.com/cps/141/tn_14157.html]here[/url]. Fresh version can be obtained [url=http://get.adobe.com/flashplayer/]here[/url].


[b][color=blue]Your Java is out of date.[/color][/b] Older versions have vulnerabilities that malware can use to infect your system. [b]Please follow these steps to remove older version Java components and update to the latest version...[/b]

[b][color=blue]Updating Java:[/color][/b]
[list]
[*]Download the latest version of [b][URL=http://www.oracle.com/technetwork/java/javase/downloads/index.html]Java Runtime Environment (JRE) 7 Update 1[/URL][/b].
[*]Click the
[b]Download[/b]
button to the right.
[*]Select Windows on platform combobox and check the box that says:
[b][i]Accept[/b] License Agreement[/i]. Click continue.

[*]The page will refresh.
[*]Click on the link to download [i]Windows Offline Installation[/i] with or without Multi-language and save to your desktop.
[*]Close any programs you may have running - especially your web browser.
[*]Go to [b]Start[/b] > [b]Control Panel[/b] double-click on [b]Add/Remove[/b] programs and remove all older versions of Java.
[*]Check any item with Java Runtime Environment (JRE or J2SE) in the name.
[*]Click the [b]Remove[/b] or [b]Change/Remove[/b] button.
[*]Repeat as many times as necessary to remove each Java versions.
[*]Reboot your computer once all Java components are removed.
[*]Then from your desktop double-click on [b]jre-7u1-windows-i586.exe[/b] to install the newest version. Uncheck Carbonite online backup trial if it's offered there.[/list]


* Go [url=http://www.eset.eu/online-scanner][color=red][b][u]here[/u][/b][/color][/url] to run an online scanner from ESET.[list]
[*][color=red][b]Note:[/b][/color] You will need to use [color=blue][b]Internet explorer[/b][/color] for this scan
[*]Tick the box next to [b]YES, I accept the Terms of Use.[/b]
[*]Click [b]Start[/b]
[*]When asked, allow the activex control to install
[*]Click [b]Start[/b]
[*]Make sure that the option [b]Remove found threats[/b] is UNchecked and the option [b]Scan unwanted applications[/b] is checkmarked.
[*]Click [b]Scan[/b]
[*]Wait for the scan to finish.
[/list]

Post back its report, a fresh dds.txt log and above mentioned ComboFix resultant log. How's the system running?

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Hi, please find below the ESET scan result:

C:\Qoobox\Quarantine\C\Users\User\AppData\Local\mciUser80\confnetWan.dll.vir a variant of Win32/Sefnit.CB trojan

Installed latest Flash as well as Java as per your instructions

I've attached the Combofix log as well as fresh DDS logs.

As to the computer the virus was redirecting Google search results but not all the time. I haven't really done much other than visiting a couple of known sites as well as bouncing back here to post results, etc.


Thanks again for your assistance thus far. Edited by caribbeansun

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Hi,

Are you still noticing any problems? If not, it's time to secure your system to prevent against further intrusions.


[color=blue]THESE STEPS ARE VERY IMPORTANT[/color]

[color=purple]Let's reset system restore[/color]
Reset and Re-enable your System Restore to remove infected files that have been backed up by Windows. The files in System Restore are protected to prevent any programs changing those files. This is the only way to clean these files: You will lose all previous restore points which are likely to be infected. Please note you need Administrator Access to do clean the restore points.

A To disable the System Restore feature:

1. Click on the Start button.
2. Hover over the Computer option, right click on it and then click Properties.
3. On the left hand side, click Advanced Settings.
4. If asked to permit the action, click on Allow.
5. Click on the System Protection tab.
6. Uncheck any checkboxes listed for your hard drives.
7. Press OK.


B. Reboot.

C Turn ON System Restore.
Follow the steps like you did when disabling system restore but on step 6. check any checkboxes listed for your hard drives.



Now lets uninstall ComboFix:
[list]
[*]Click START then RUN
[*]Now copy-paste [B]Combofix /uninstall[/B] in the runbox and click OK
[/list]


[color=orange]UPDATING WINDOWS AND INTERNET EXPLORER[/color]

IMPORTANT: You Need to Update Windows and Internet Explorer to protect your computer from the malware that is around on the Internet. Please go to [url=http://windowsupdate.microsoft.com/][color=blue]the windows update site[/color][/url] to get the critical updates.

If you are running Microsoft Office, or any portion thereof, go to the Microsoft's Office Update site and make sure you have at least all the critical updates installed (Free) Microsoft Office Update.

[color=purple]Make your Internet Explorer more secure[/color]

This can be done by following these simple instructions:
From within Internet Explorer click on the Tools menu and then click on Options.
Click once on the Security tab
Click once on the Internet icon so it becomes highlighted.
Click once on the Custom Level button.
Change the Download signed ActiveX controls to Prompt
Change the Download unsigned ActiveX controls to Disable
Change the Initialize and script ActiveX controls not marked as safe to Disable
Change the Installation of desktop items to Prompt
Change the Launching programs and files in an IFRAME to Prompt
Change the Navigate sub-frames across different domains to Prompt
When all these settings have been made, click on the OK button.
If it prompts you as to whether or not you want to save the settings, press the Yes button.
Next press the Apply button and then the OK to exit the Internet Properties page.



Download and run [url=http://secunia.com/vulnerability_scanning/personal/]Secunia Personal Software Inspector (PSI)[/url] and fix its findings. Leave the program installed so you'll stay alarmed about vulnerable components in future too.


[b]Just a final reminder for you. I am trying to stress these two points.[/b]
[color=green][size=18]UPDATE UPDATE UPDATE!!![/size][/color] Make sure you do this about every 1-2 weeks.
Make sure all of your security programs are up to date.
[color=purple]Visit Microsoft's Windows Update Site Frequently[/color] - It is important that you visit [url=http://www.windowsupdate.com]http://www.windowsupdate.com[/url] regularly. This will ensure your computer has always the latest security updates available installed on your computer. If there are new updates to install, install them immediately, reboot your computer, and revisit the site until there are no more critical updates.


Once again, please post and tell me how things are going with your system... problems etc.

[color=green]Have a great day,[/color]
Blade B)

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Everything seems to be running fine. I had resisted installing IE upgrades due to it disabling Outlook Express and I use Firefox and Chrome for browsing so I'll have to look for an alternative mail program.

Thank you for all your help with this!

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You're welcome :)

You may want to give Mozilla's [url=https://www.mozilla.org/en-US/thunderbird/]Thunderbird[/url] email client a try.

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Since this issue appears to be resolved ... this Topic has been closed. Glad we could help. :)

If you're the topic starter, and need this topic reopened, please contact the staff member who was helping you with your issue.

Everyone else please begin a New Topic.

Thank you !

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