Trojan Horse

This is odd, the first time I ran Avast after the ComboFix script it picked up the Trojan Horse again and I selected Fix automatically and Avast moved it to chest. I reopened Firefox and ran a search in google(this activated the script to put a new Trojan Horse in the cache). I ran the scan again and this time it didn’t show any threats. The full system scan was clean too.

Added the FRST files in the attachments.

avast! may have detected the script quarantined by Combofix but give it a day and see if it comes back. In the meantime do an online scan with ESET.

  • Step #6 ESET Online Scanner
    Disable your security programs which includes but not limited to anti-virus, anti-malware, anti-spyware et cetera. Peruse this for additional information.

      [li]Download [b]esetsmartinstaller_enu.exe[/b] by clicking [url=http://download.eset.com/special/eos/esetsmartinstaller_enu.exe][b]here[/b][/url].
      - Right-click on the program and choose [i]Run as administrator[/i].
      - Accept their terms and condition and proceed.
      - Install [b]Add-On/Active X[/b] if prompted.
      - From the [b]Computer Scan Setting[/b] --
    

[list]
[li]Uncheck the box beside Remove Found Threats;
- Check the box beside Scan archives
[/li]
- Click on Advanced Setting and check the following boxes–

		[li][b]Scan for potentially unwanted applications[/b]
		- [b]Scan for potentially unsafe applications[/b]
		- [b]Enable Anti-Stealth Technology[/b]
	[/li]
	- Click on [b]Start[/b] and wait for the [b]virus signature database[/b] to update.
	- The online scan will begin [i]automatically[/i] and can take several hours.

		[li][b]Note:[/b] Do not touch either the Mouse or keyboard during the scan. Otherwise it may stall.
	[/li]
	- After the Scan finishes --
	- 
		[li][b]If no threats were found:[/b]

[list]
[li]Put a checkmark in Uninstall application on close.
- Close the program and report that nothing was found
[/li]
- If threats were found:

			[li]Open the file located in [b]C:\Program Files\ESET\ESET Online Scanner\log.txt[/b] (32-bit) or [b]C:\Program Files (x86)\ESET\ESET Online Scanner\log.txt[/b] (64-bit).
			- Attach the log file in your next reply.
		[/li]
	[/list][/li]
[/list][b]Note:[/b] Enable your security programs afterwards.[/li]

  • Required Log(s):

      [li]ESET Scan Log
    

    [/li]
    Regards,
    Valinorum

Hi Valinorum,

Running the ESET scan now, your text is a bit outdated. The scan options have changed a bit.

First option is Enable or disable detection of potentially unwanted applications.

In the advanced options these are the options given that you can tick or untick:

  • Remove found threats
  • Scan archives
  • Scan for potentially unsafe applications
  • Enable Anti-Stealth technology
    Current scan targets: operating memory, Local drives Change…
  • Use custom proxy settings Configure…

Might be a bit confusing to some as your description doesn’t line up with the software. Just a heads up :slight_smile:

Oh! thank you. I have been away from avast! board for sometimes and my canned-speeches for this board has not been updated yet. My apology.

No apology needed, you help me out, I’ll help you out :smiley:

ESET scan finished, no threats detected. I also have a desktop with the same Trojan Horse, can you fix that one as well?

Please wait a day to see if it returns. Then I will post clean-up instructions. By your Desktop, did you mean the thread at Bleeping Computer?

I will, rebooted the laptop and visited regular websites that triggered avast but it’s silent now. A scan in the Firefox folder showed no threats and it looks like FBListener-A is gone.

My desktop had Acestream also and became infected too with the exact same malware and trojan horse, that computer is still infected and needs fixing too :frowning:

Please create a new topic here and post the required logs to get started.

Will do, thank you so much for your assistance in this thread!

Hi,

Perusing your logs, I see no infection currently present in your system. Unless you are having any issue(s), the machine appears to be Malware-free as we speak.


[b]♣ Removal of Tools and Quarantined Files ♣ [/b]

Despite the tools we have used are clean, they are powerful removal tools and made in a way so that they carry out any commands given to them without (most cases) asking for a confirmation. In the hands of an inept person, they can make the machine un-bootable – a scenario we do not wish to see. Also, we need to remove the quarantined files/folders from your system as a dormant malware can be as bad as an active one if given the proper environment. I shall now give you the guidelines to remove the tools and the quarantined files from your system.

It is time to uninstall Combofix. Please follow the instructions:

http://www.bleepstatic.com/combofix/en/windows-7-start-menu.jpg

- Once you have typed this in, press [b]Enter[/b] on your keyboard.
- A Open File security warning will appear asking if you are sure you want to run ComboFix. Please click on the [b]Run[/b] button to start the program.

ComboFix will now uninstall itself from your computer and remove any backups and quarantined files. When it has finished you will be greeted by a dialog box stating that ComboFix has been uninstalled. You can now delete the ComboFix.exe program from your computer. ComboFix has now been uninstalled from your Windows Vista or Windows 7 computer.

  • Cleanup with Delfix
    Please download DelFix by Xplode to your Desktop.
    Download Link

      [li]Double-click to run the program;
      - [list]
      	[li][b]Note[/b]: Windows Vista/7/8 users right-click and choose [i]Run as administrator[/i]
      [/li]
      - Make sure that all the boxes are checked;
      - Click [b]Run[/b];
      - A log will be opened after the operation is finished;
      - [i]Copy[/i] and [i]Paste[/i] it in your next reply
    

    [/list][/li]


[b]♣ Prevention and Future Guidelines ♣ [/b]

Prevention is better than cure – goes the old saying. As much as we love to see you visit our site, we do not want to see you having your PC infected by malwares again.

  • Keep Windows up-to-date.
    It is extremely important that you keep your operating system (Windows) updated when updates are made available. It is set to alert you, so be sure not to ignore these notices and to allow the updates to install. Many of these are critical security packages which could very possibly be the difference between your picking up a future infiltration and simply passing right by it unharmed.
    • Run antivirus software and keep it up-to-date, too.
      Antivirus software is your safety net if all other protections fail. The first line of defense is smart computing, of course, but everyone needs a backup. Once they’re installed, check periodically to ensure they have been successfully updating as well. An out-of-date antivirus is not a happy antivirus!
    • Keep your web browser plugins and other programs updated also.
      This tip is rarely shared by technicians and its importance is not widely recognized, but it’s absolutely critical. Programs such as Java, Adobe Flash Player and Adobe Reader, Internet Explorer, and myriad other such web-exposed items are deeply vulnerable to attack, which can quickly lead to a hopelessly infected system no matter what protection you currently have installed. The reason is that these programs are ubiquitous, but are also not perfect and are extremely complex… and as such, security vulnerabilities are discovered and exploited by hackers hoping to gain control over your machine. By performing every update for these programs as soon as it’s made available, you will greatly reduce your exposure to dangerous internet threats.

A great way to do this is to install the Filehippo Update Checker and run it regularly. Also, try not to ignore any notifications you receive regarding updates to programs already installed on your PC.

No scripts is an excellent security device too. I like it but it is not for everyone because it requires you to take action if you want to see some things (pop ups, banners etc.) on sites you visit.

Download NoSript by Giorgio Maone.

Note: Sometimes you will get a site telling you that you need to install Java when actually all you need to do is enable the site through the no script icon down on the right hand side of your computer.

- [b]Watch out for new threat named CryptoLocker[/b]

CryptoLocker is a new type ransomware family malware that encrypts your important files and asks for a ransom to decrypt them. At the moment of posting this reply there are no tools that can undo the havoc this malware causes. We can help you to remove the malware from your system but the files that was encrypted cannot be recovered without the decryption key. So, I ask for your forbearance and practice constant vigilance. Please read the following article to acknowledge yourself about the safety measures.
How to prevent your computer from becoming infected by CryptoLocker.

- [b]And last of all, surf smart.[/b]

It doesn’t matter how well the autopilot system works if the pilot keeps flying the plane into mountain ranges. Don’t forget that no matter how much you have protecting yourself, your security ultimately begins and ends with you. Don’t visit dangerous or questionable web sites, avoid suspicious links on Facebook and emails/email attachments you’re unsure about, and just generally keep your wits about you, and you’ll be much safer. Also, avoid illegal downloads, cracks, “warez”, and all other too-good-to-be-true internet offerings: they’re typically laden with malware. Be smart and you can avoid most threats lurking about the darker corners of the internet! And for even more tips, see our article, How Did I Get Infected in the First Place?

Regards,
Valinorum

All done and cleaned up, thanks for your guidance through this process Valinorum. I will post a new thread for my desktop in a week or two, when I’m back from my trip.

Okay. :slight_smile: