By | September 9, 2012 | 1 Comment

Backdoor.Bot is a pass-spreading Trojan that has a main function of allowing remote attacker to access your computer. Presence of this threat causes identify theft and stolen online accounts to banking and gaming web sites. Additionally, Backdoor.Bot robs your computer with privacy information by recording all key presses and save it to a log file. On a scheduled time, all gathered data are delivered to the attacked using HTTP and FTP protocols. This Trojan also saves screenshot of your screen, capturing some of your important information.

Backdoor.Bot also connects to its Command and Control (C&C) server for further attacker’s instructions. It may receive other malware that executes on the computer to conduct separate purposes. The threat may receive new commands or update itself using the same link. As the name suggests, its main function is to open the port to allow unauthorized remote access. However, there are several versions of Backdoor.Bot that carry out extra tasks such as the following:

  • Drop and execute other malware
  • Hide files and folders
  • Delete, rename, or execute other malware files
  • Receive instructions from a remote attacker
  • Download and install rogue security product
  • Record key presses on the affected computer

As there are many variants of Backdoor.Bot, each has own ways of infiltrating your computer. Thus, leaving your entire protection to antivirus program is not sufficient. Proper and secure ways of using the Internet helps in preventing Backdoor.Bot infection.

Type Trojan
Sub-Type Bot
OS Affected Windows XP, Windows Vista, Windows 7

What are the Symptoms of Backdoor.Bot Infection?

Backdoor.Bot automatically process interaction on various system and spreads over the Internet so fast. When your computer is protected while online, avoiding the infection is highly feasible. As shown in the screenshot image, MalwareBytes Anti-Malware detects and prevents Backdoor.Bot from entering the computer.

Backdoor.Bot by MBAM

Follow these Procedures to Remove Backdoor.Bot

Procedure 1: Start Computer in Safe Mode

1. Restart your computer in Safe Mode with Networking

- To run Windows system in Safe Mode, please press F8 after turning ON the computer. Hit the keyboard button before the appearance of Windows logo. If successful, you will see a screen of Windows Advanced Options Menu. See image below for your reference. This area will allow you to choose preferences on how you want to boot the system.

- From the selections, choose Safe Mode with Networking. Please use keyboard's arrow up/down to navigate between selections and press Enter on the keyboard to proceed. Keep in mind that booting Windows in Safe Mode only loads minimum driver files. Thus, most of the devices will not be available on this mode. Seeing pixilated images on the screen is normal since your current resolution is set to low.

SafeMode Networking

Procedure 2: Scan and remove Backdoor.Bot files with MalwareBytes Anti-Malware

To remove Backdoor.Bot, download Malwarebytes Anti-Malware by clicking on the button below. This tool is effective in getting rid of Trojans, viruses and malware.

Download Backdoor.Bot Removal Tool

1. After downloading, please install the program using the default settings.
2. At the end of the installation, please make sure that it will download necessary updates.
3. Once update has completed. The tool will launch.
4. Thoroughly scan the computer and remove all threats detected by this anti-malware program.

Procedure 3: Run Symantec's ZeroAccess Fix Tool to remove Backdoor.Bot components.

This tool from Symantec can remove infections of Backdoor.Bot as well as other variants of the same nature.

1. Click on the button below to download ZeroAccess Fix Tool. Save the file FixZeroAccess.exe to your desktop or any convenient location.

Download FixZeroAccess

2. You need to close any running programs before running this tool.
3. Turn OFF System Restore if you are using Windows XP. Backdoor.Bot files may hide some of its components on system restore files.
4. Next, browse the folder where you saved the file FixZeroAccess.exe. Double-click on it to initiate the tool. To run the file in Windows Vista and Windows 7, right-click on it and choose 'Run as administrator' from the selection.

Icon of ZeroAccessFix Run As Administrator

5. It will display End User License Agreement (EULA), please click on I accept to use the program.
6.Click on Proceed to begin the removal process, let the tool to run and do its course.
7. If it requires you to restart Windows, please do so. This method may remove Backdoor.Bot components such as files and hidden modules.

Restart Windows

8. When Windows starts, ZeroAccess Fix Tool will provide some details of the infection.
9. If it prompts for update, you need to run LiveUpdate to make sure that it contains the most recent virus definitions.
10. Wait for the tool to complete the scan process. When done, it will issue a message and specify identified threats. These threats are removed during the scan process, so, there is no need to worry about their presence.

Procedure 4: Make sure that Backdoor.Bot is 100% deleted with Avast aswMBR

A Trojan often drops malware using an advance technology known as rootkit. It hides the installation of Backdoor.Bot from your anti-virus program and injects malicious code to running Windows processes. To complete the clean-up process, you also need to scan and remove rootkit Trojan.

1. Download aswMBR from Avast server. Save it to your computer.

Avast Rootkit Scanner

2. Double-click on the file aswMBR.exe to run the program.
3. If it prompts you to download the latest Avast! virus definition, please click Yes. This is necessary to identify most recent version of the Trojan as well as hidden files of Backdoor.Bot.

Updating aswMBR

4. Click on Scan button to start checking your computer for presence of rootkit Trojan and other viruses. It will display a message "Scan finished successfully" when done.

aswMBR Scan

5. Click Fix or FixMBR to start removing infection. If aswMBR contains the latest Avast! virus definition file, it will automatically clean infected files on your PC.

Protect your PC from Backdoor.Bot or Similar Attack

Turn On Security Features of your Internet Browser

Internet Explorer - Activate SmartScreen Filter

Internet Explorer versions 8 and 9 has this feature called SmartScreen Filter. It helps detect phishing web sites and protect you from downloading malicious files online. You may have avoided Backdoor.Bot virus if this has been active on your PC. To turn on SmartScreen Filter, follow these steps:

1. Please open Internet Explorer.
2. On top menu, select Tools (IE 9). For IE 8, please look for Safety menu.
3. Select SmartScreen Filter from the drop-down list and click on Turn on SmartScreen Filter.

IE SmartScreen Filter

4. Please restart Internet Explorer.

SEE MORE : Comprehensive steps to activate SmartScreen Filter

Google Chrome's Enable Phishing and Malware Protection

With Google Chrome's Phishing and Malware Detection feature, you will have lesser risks browsing the web. It will display a warning when the site you are trying to visit is suspicious. To enable Phishing and Malware Protection, please do these steps:

1. Open Google Chrome.
2. Click on the Customize and control Google Chrome (3-Bars Icon) located on top right corner of the browser.
3. Select Settings from the drop-down list.
4. Once on the settings page, click on Show advanced settings... at the bottom of the page to see the rest of the Chrome setup.
5. Locate Privacy section and mark 'Enable phishing and malware protection'.

Chrome Security Settings

6. Please restart Google Chrome. New settings keep your browser safe while surfing the web.

SEE MORE : Enable Phishing and Malware Protection on Google Chrome

Mozilla Firefox - Block Attack Sites and Web Forgeries

Phishing and Malware Protection is a built-in feature on Firefox version 3 or later. It warns you when a page you are trying to visit contains phishing content or an attack site designed to drop threats on the computer. To help you keep safe while browsing the Internet using Firefox, please follow this guide:

1. Open Mozilla Firefox browser.
2. On top menu, click on Tools. Then select Options from the list.
3. Select Security and put a check mark on the following items:

  • Warn me when sites try to install add-ons
  • Block reported attack sites
  • Block reported web forgeries

Firefox Security Settings

One thought on “Backdoor.Bot

  1. Brent Rossiter

    Thank you Malwarebytes. Mcafee detected nothing on a full scan, and let this through its realtime protection also. But Malwarebytes found it, on my Mothers Windows 8 pc, named as IOBit Start button application. I installed the W8 start button a year ago, and it was fine then by itself. But in the recent month she had many many IObit things running. Fake AV’s and all.

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