Darkbot Banking Malware
Virus | 07/17/2018

How to remove Dorkbot Banking Malware from the Computer?

About: Dorkbot banking Malware is again infecting systems in 2018 after it was active six years ago in 2012. Now it acts as a remote access Trojan (RAT) which allows the cyber miscreant to enable remote code execution capability to steal sensitive bank logi...  Read More  

| Virus | How to remove Dorkbot Banking Malware from the Computer?

What is Dorkbot Banking Malware?

Dorkbot is a banking malware that was first detected in 2012. It targeted and attacked banks all over the world to cause chaos and destruction on an extensive level. Dorkbot Banking Malware can download additional malware into the infected system with the Primary goal of stealing sensitive user information and DDoS attacks.

Dorkbot Banking Malware is now attacking banks again in 2018 and this malware is categorized as an IRC worm which is designed to work as a Remote Access Trojan (RAT) in its latest version. It targets passwords, usernames, keystrokes typed, login details on banking sites to get access to user’s funds.

The new version allows the cyber attacker to look at the history of your computer for any passwords and data entered previously. Dorkbot Banking Malware targets users Skype, Facebook and Twitter accounts to gain entry into the system using an infected message with the title “Is this your new profile pic”. The infected message downloads the virus payload into the system once the user opens the message.

The Dorkbot Banking Malware is a botnet infection that now has the capabilities to spread to computer systems on a network. It sends the contacts of the victim to the malicious archive of the cyber attacker. These contacts can then be used to spread the infection to unsuspecting users.

 

Dorkbot Banking Malware – Threat Behavior

The Dorkbot Banking Malware targets %AppData% and %Temp% Folders. It drops multiple files different worm infection files in these locations which enables it to spread through multiple machines. The windows registry keys are heavily modified by it to avoid detection. It can overwrite the following files to hinder diagnosis

  • cmd.exe
  • regedit.exe
  • rundll32.exe
  • regsvr32.exe
  • ipconfig.exe
  • verclsid.exe

The Dorkbot banking malware injects a code in the ‘explorer.exe’ and other processes to avoid detection from anti-virus software. It then connects to IRC server and generates a nickname for the infected system using the following format “n{<country code>|<OS version><user type>}<random string>”.

Dorkbot Banking Malware deletes its virus payload files and other files that it downloads in the system to stay hidden from detection. It runs in a user-mode rootkit to prevent the user to view and tamper its files. It is done by adding these functions to all the processes it is injected in:

  • CopyFileA/W
  • DeleteFileA/W
  • NtQueryDirectoryFile
  • NtEnumerateValueKey

Dorkbot Banking Malware can log into a remote FTP server to infect various HTML files by adding an IFrame. This allows the malware to enable its spread function and infect multiple devices. It prevents user access to security websites from its list of targeted websites.

The malware infects several APIs to hide its components including registry entries, process names and files dropped on the system. The Remote code execution capability of Dorkbot banking Malware was recently added has allowed the cyber miscreant to:

  1. Collect sensitive login details mainly on banking websites via form grabbing and through FTP, POP3 or cached login from web browsers
  2. URLs can be used to Download and run files as required by the miscreant
  3. It can allow the miscreant to block or redirect web pages to be persistent in the system and avoid detection.

 

How Did Your System Get Infected?

The cyber criminals use various strategies for malware distribution which include –

  1. Software Bundling: Software bundling is the process in which a malicious program is distributed with other free software, to get an unnoticed entry into your computer system. When a user installs a free application, the malicious programs gains a front door entry with the free application, the user has downloaded. Thus, it is a good idea to keep an eye on the installation screens while installing these free applications.
  2. Infected Storage Devices: Your system can also get infected by using removable media such as USB hard drives and jump drives without scanning them with an anti-virus.
  3. Spam Emails – Spamming is the most economic and common method used for the distribution of such malware. The targeted users get genuine looking emails which contain .doc, .txt, and other similar attachments. These attachments can be named as anything which can grab the user’s attention and triggers him/her to open the attachment. As soon as the user opens this attachment, the malware infects the user’s computer system.
  4. Malicious Websites or Malevolent Advertisements: The malicious websites are the ones which are created just for promoting the malware infections. Such websites include but are not limited to porn sites, torrent sites and other free downloading platforms. By visiting such websites, the adware infects the user’s computer without permission. Fake advertisements and updates like Flash player and windows updates which ask the user to update to the latest version are a few examples. When the users click on such links, their computer system gets infected. That is why, it is highly recommended to resist clicking on such links. Also avoid clicking on advertisements offering free stuff such as Win an iPhones, cars or free overseas trips etc.

 

Threat Summary

Name – Dorkbot

Category – Malware, Botnet Virus,

Targeted Operating Systems – Windows XP, Windows Vista, Windows 7, Windows 8.0/8.1, Windows 10

Symptoms – Certain web pages and security domains don’t open on the system, various new processes and registry keys added to steal sensitive user data.

 

How to remove Dorkbot banking Malware from the PC?

To remove Dorkbot banking malware from the system, the user should follow these steps in perfect order to avoid leaving any residual files. If the users attempts to delete dorkbot banking malware on their own then there is a chance that the dorkbot banking malware might return into the system.

 

 

Tips to prevent your computer system from getting infected

  1. Keeping the Operating System Updated- In order to remain protected and avoid such infections, it is recommended to keep your Operating System updated by enabling the automatic update on your system. The systems with outdated or older versions of Operating System become an easy target for the attackers.
  2. Resist clicking on spam emails – One of the major techniques used for malware distribution is forwarding spam emails to the user. The system gets infected as soon as the user clicks on the attachment. These mails appear to be genuine, so be aware and resist falling for these tricks.
  3. Keep an eye on third party installations- It is quite important that you take due care while installing any third party applications for they are major source of such infections. Such malware programs come bundled with the free applications thereby requiring the user to remain cautious.
  4. Regular periodical backup- In order to keep your data and files safe, it is recommended to take regular back up of all your data and files either on an external drive or cloud.
  5. Use Anti-Virus Protection- We strongly recommend the use of antivirus protection/internet security in your PC like 360 Total Security and Avira so that it remains safe.
  6. Enable the Ad Blocker/Popup Blocker in your browser- Enabling the popup blocker/ ad blocker in your chosen browser will help you to stay protected from annoying adware.

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