| Name | BKDR_KASIDET.FD |
| Type | Trojan, Backdoor |
| Short Description | The backdoor is aimed at stealing information from the infected PC. |
| Symptoms | Folders, values, and mutexed are added to the system. |
| Distribution Method | Spam emails (attachments) |
| Detection tool | Download Malware Removal Tool, to See If Your System Has Been Affected By BKDR_KASIDET.FD |
BKDR_KASIDET.FD is a malicious Trojan horse with backdoor capabilities that has been detected recently in the wild. Other aliases of the threat are Win32/Kasidet.AD (ESET-NOD32), Backdoor.Neutrino (Malwarebytes), and Trojan:Win32/Lezo.A (Microsoft). Once the Kasider Trojan has sneaked in the system, various types of information are endangered, including banking and credit card credentials. Its primary distribution method is via email (spam)
BKDR_KASIDET.FD Malware Specifications
The backdoor is associated with the Kasidet a.k.a. Neutrino bot which is well-known for its DDoS (distributed denial-of-service) attacks. According to multiple security reports, Kasidet has been leaked in an underground forum in July, 2015. The latest 3.6 version had a brand new feature – ‘ccsearch’. Ccsearch is used to scrap payment card details from PoS systems.
BKDR_KASIDET.FD Attack Resume
As already specified, the backdoor is distributed via corrupted email attachments to mass-mailed email messages. BKDR_KASIDET.FD will delete itself after it is executed.
According to the report by TrendMicro, the Kasidet backdoor is capable of:
- Connecting to a specific URL to send and receive commands from a remote server.
- Executing malicious commands on the infected system.
- Stealing information from the system.
- Hooking Windows API to defined browsers and clients.
Once the backdoor is installed, it will add the following folder:
→%Application Data%\Y1FeZFVYXllb
Then, the malicious piece will drop the following copy of itself:
→%Application Data%\Y1FeZFVYXllb\{random filename}.exe
Finally, a mutex is also added to make sure that only one of the copies runs every single time:
→Y1FeZFVYXllb
BKDR_KASIDET.FD Backdoor Activities
There is a list of activities that will be initiated remotely by the hacker:
- Downloading and executing multiple malicious files and processes.
- Updating itself.
- Uninstalling itself.
- Finding files.
- Performing Remote Shell.
- Performing a DDoS attack.
The backdoor is reported to connect to two URLs (currently blocked) to receive commands and information from a remote location:
→https://{BLOCKED}y.su/mu/tasks.php
https://{BLOCKED}p.su/mu/tasks.php
Types of Stolen Information
According to security researchers at TrendMicro, the backdoor aims at the following data:
- ComputerName
- OS Version
- Machine GUID
WARNING
The BKDR_KASIDET.FD backdoor is associated with the WORM_KASIDET.SC which is known to affect PoS systems and steal money by obtaining credit card information over a command-and-control server. Apart from stealing money and performing distributed denial-of-service attacks, the worm is reported to log keystrokes, copy clipboard data, capture screenshots, and infect removable drives and network folders.
BKDR_KASIDET.FD Removal Options
Malicious threat should be removed automatically via powerful anti-virus software that runs in real time. It is highly recommended to apply automated removal. Because of its backdoor capabilities and the association with a worm of the same family, manual removal is not considered safe. However, we have compiled several steps that apply to Trojan horses. Find them below the article.
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Preparation before removing BKDR_KASIDET.FD.
Before starting the actual removal process, we recommend that you do the following preparation steps.
- Make sure you have these instructions always open and in front of your eyes.
- Do a backup of all of your files, even if they could be damaged. You should back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats.
- Be patient as this could take a while.
- Scan for Malware
- Fix Registries
- Remove Virus Files
Step 1: Scan for BKDR_KASIDET.FD with SpyHunter Anti-Malware Tool
Step 2: Clean any registries, created by BKDR_KASIDET.FD on your computer.
The usually targeted registries of Windows machines are the following:
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
You can access them by opening the Windows registry editor and deleting any values, created by BKDR_KASIDET.FD there. This can happen by following the steps underneath:
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.Step 3: Find virus files created by BKDR_KASIDET.FD on your PC.
1.For Windows 8, 8.1 and 10.
For Newer Windows Operating Systems
1: On your keyboard press + R and write explorer.exe in the Run text box and then click on the Ok button.
2: Click on your PC from the quick access bar. This is usually an icon with a monitor and its name is either “My Computer”, “My PC” or “This PC” or whatever you have named it.
3: Navigate to the search box in the top-right of your PC's screen and type “fileextension:” and after which type the file extension. If you are looking for malicious executables, an example may be "fileextension:exe". After doing that, leave a space and type the file name you believe the malware has created. Here is how it may appear if your file has been found:
N.B. We recommend to wait for the green loading bar in the navigation box to fill up in case the PC is looking for the file and hasn't found it yet.
2.For Windows XP, Vista, and 7.
For Older Windows Operating Systems
In older Windows OS's the conventional approach should be the effective one:
1: Click on the Start Menu icon (usually on your bottom-left) and then choose the Search preference.
2: After the search window appears, choose More Advanced Options from the search assistant box. Another way is by clicking on All Files and Folders.
3: After that type the name of the file you are looking for and click on the Search button. This might take some time after which results will appear. If you have found the malicious file, you may copy or open its location by right-clicking on it.
Now you should be able to discover any file on Windows as long as it is on your hard drive and is not concealed via special software.
BKDR_KASIDET.FD FAQ
What Does BKDR_KASIDET.FD Trojan Do?
The BKDR_KASIDET.FD Trojan is a malicious computer program designed to disrupt, damage, or gain unauthorized access to a computer system. It can be used to steal sensitive data, gain control over a system, or launch other malicious activities.
Can Trojans Steal Passwords?
Yes, Trojans, like BKDR_KASIDET.FD, can steal passwords. These malicious programs are designed to gain access to a user's computer, spy on victims and steal sensitive information such as banking details and passwords.
Can BKDR_KASIDET.FD Trojan Hide Itself?
Yes, it can. A Trojan can use various techniques to mask itself, including rootkits, encryption, and obfuscation, to hide from security scanners and evade detection.
Can a Trojan be Removed by Factory Reset?
Yes, a Trojan can be removed by factory resetting your device. This is because it will restore the device to its original state, eliminating any malicious software that may have been installed. Bear in mind that there are more sophisticated Trojans that leave backdoors and reinfect even after a factory reset.
Can BKDR_KASIDET.FD Trojan Infect WiFi?
Yes, it is possible for a Trojan to infect WiFi networks. When a user connects to the infected network, the Trojan can spread to other connected devices and can access sensitive information on the network.
Can Trojans Be Deleted?
Yes, Trojans can be deleted. This is typically done by running a powerful anti-virus or anti-malware program that is designed to detect and remove malicious files. In some cases, manual deletion of the Trojan may also be necessary.
Can Trojans Steal Files?
Yes, Trojans can steal files if they are installed on a computer. This is done by allowing the malware author or user to gain access to the computer and then steal the files stored on it.
Which Anti-Malware Can Remove Trojans?
Anti-malware programs such as SpyHunter are capable of scanning for and removing Trojans from your computer. It is important to keep your anti-malware up to date and regularly scan your system for any malicious software.
Can Trojans Infect USB?
Yes, Trojans can infect USB devices. USB Trojans typically spread through malicious files downloaded from the internet or shared via email, allowing the hacker to gain access to a user's confidential data.
About the BKDR_KASIDET.FD Research
The content we publish on SensorsTechForum.com, this BKDR_KASIDET.FD how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific trojan problem.
How did we conduct the research on BKDR_KASIDET.FD?
Please note that our research is based on an independent investigation. We are in contact with independent security researchers, thanks to which we receive daily updates on the latest malware definitions, including the various types of trojans (backdoor, downloader, infostealer, ransom, etc.)
Furthermore, the research behind the BKDR_KASIDET.FD threat is backed with VirusTotal.
To better understand the threat posed by trojans, please refer to the following articles which provide knowledgeable details.