TrojanDropper:Win32/BcryptInject.A!MTB Virus Removal

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

Seeing the TrojanDropper:Win32/BcryptInject.A!MTB detection name means that your computer is in big danger. This malware can correctly be named as ransomware – type of malware which ciphers your files and forces you to pay for their decryption. Deleteing it requires some specific steps that must be done as soon as possible.

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TrojanDropper:Win32/BcryptInject.A!MTB detection is a virus detection you can spectate in your computer. It generally appears after the preliminary activities on your computer – opening the untrustworthy e-mail, clicking the banner in the Web or setting up the program from dubious resources. From the second it appears, you have a short time to act until it starts its harmful activity. And be sure – it is far better not to wait for these malicious actions.

What is TrojanDropper:Win32/BcryptInject.A!MTB virus?

TrojanDropper:Win32/BcryptInject.A!MTB is ransomware-type malware. It searches for the documents on your disk, ciphers it, and after that asks you to pay the ransom for getting the decryption key. Besides making your files inaccessible, this malware additionally does a lot of harm to your system. It modifies the networking setups in order to avoid you from checking out the removal articles or downloading the anti-malware program. In rare cases, TrojanDropper:Win32/BcryptInject.A!MTB can additionally prevent the launching of anti-malware programs.

TrojanDropper:Win32/BcryptInject.A!MTB Summary

Summarizingly, TrojanDropper:Win32/BcryptInject.A!MTB ransomware actions in the infected PC are next:

  • Sample contains Overlay data;
  • Uses Windows utilities for basic functionality;
  • The binary contains an unknown PE section name indicative of packing;
  • The binary likely contains encrypted or compressed data.;
  • Executable file is packed/obfuscated with MPRESS;
  • Authenticode signature is invalid;
  • Deletes executed files from disk;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Ciphering the documents kept on the victim’s disk drives — so the victim cannot check these files;
  • Blocking the launching of .exe files of anti-malware apps
  • Blocking the launching of installation files of anti-virus programs

Ransomware has been a horror story for the last 4 years. It is hard to imagine a more harmful virus for both individual users and companies. The algorithms used in TrojanDropper:Win32/BcryptInject.A!MTB (typically, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need a lot more time than our galaxy actually exists, and possibly will exist. However, that virus does not do all these horrible things instantly – it can take up to several hours to cipher all of your documents. Thus, seeing the TrojanDropper:Win32/BcryptInject.A!MTB detection is a clear signal that you need to begin the elimination process.

Where did I get the TrojanDropper:Win32/BcryptInject.A!MTB?

Typical ways of TrojanDropper:Win32/BcryptInject.A!MTB spreading are standard for all other ransomware examples. Those are one-day landing sites where victims are offered to download the free app, so-called bait emails and hacktools. Bait e-mails are a quite new strategy in malware distribution – you get the email that imitates some normal notifications about deliveries or bank service conditions modifications. Inside of the e-mail, there is an infected MS Office file, or a link which opens the exploit landing site.

Malicious email spam

Malicious email message. This one tricks you to open the phishing website.

Avoiding it looks fairly uncomplicated, but still demands tons of focus. Malware can hide in different places, and it is much better to prevent it even before it goes into your computer than to rely upon an anti-malware program. Basic cybersecurity knowledge is just an essential thing in the modern world, even if your interaction with a PC stays on YouTube videos. That may save you a lot of money and time which you would certainly spend while looking for a fixing guide.

TrojanDropper:Win32/BcryptInject.A!MTB malware technical details

File Info:

name: A72CA94AB9045FE6336A.mlw
path: /opt/CAPEv2/storage/binaries/d5be82c3c1585b5a7d08d226fe3d7bafa8a38df9d404fe367484adf519dd1993
crc32: 31E0500F
md5: a72ca94ab9045fe6336a975ab9670459
sha1: 5ff247f5dab5a70192d0322794e8e2426a3a391b
sha256: d5be82c3c1585b5a7d08d226fe3d7bafa8a38df9d404fe367484adf519dd1993
sha512: e2cceda9c8c2beacd0c714d928a3082e9ef5efe5837deb4b2603f37b0fb175b25e8023e6270644c142fcba0c39fe8e714f1fe419395281b02991a5edf0f60605
ssdeep: 3072:Wlz3wEAw0N2uoOdOIaOtqk75nOdXz7z0sztKPmB29F+vlsd/C5s33iVDqbxpSRkw:WljeIM5Oxz30sZWCvl0CiitmxWdpP
type: PE32 executable (console) Intel 80386, for MS Windows
tlsh: T14C24121BF94C5322C1625632078DAD8BF719F66231A9C6DBC6EC803F6A0DF4904B7766
sha3_384: 0039313fb3f8f5fbc5fcaccb53e0c2e3f5a82217082051a6b6bfd1ae937d12d8d00b9e85dafac53687d5c3f6ce6a6249
ep_bytes: 60e80000000058055a0b00008b3003f0
timestamp: 2009-11-10 13:17:51

Version Info:

0: [No Data]

TrojanDropper:Win32/BcryptInject.A!MTB also known as:

CynetMalicious (score: 100)
K7AntiVirusTrojan ( 005768dd1 )
K7GWTrojan ( 005768dd1 )
Elasticmalicious (high confidence)
ESET-NOD32a variant of BAT/Agent.NAS
AvastWin32:Evo-gen [Trj]
EmsisoftDropped:Trojan.Bat.AAPW (B)
MAXmalware (ai score=85)
RisingVirus.Agent/BAT!8.132D6 (TFE:1:AWAA0BRVklU)
SentinelOneStatic AI – Malicious PE
AVGWin32:Evo-gen [Trj]
CrowdStrikewin/malicious_confidence_100% (W)

How to remove TrojanDropper:Win32/BcryptInject.A!MTB?

TrojanDropper:Win32/BcryptInject.A!MTB malware is extremely hard to eliminate manually. It puts its data in multiple locations throughout the disk, and can get back itself from one of the parts. Additionally, a number of changes in the registry, networking setups and Group Policies are really hard to find and return to the initial. It is much better to use a special app – exactly, an anti-malware tool. GridinSoft Anti-Malware will fit the best for virus removal goals.

Remove TrojanDropper:Win32/BcryptInject.A!MTB with Gridinsoft Anti-Malware

We have also been using this software on our systems ever since, and it has always been successful in detecting viruses. It has blocked the most common Trojans as shown from our tests with the software, and we assure you that it can remove TrojanDropper:Win32/BcryptInject.A!MTB as well as other malware hiding on your computer.

Gridinsoft Anti-Malware - Main Screen

To use Gridinsoft for remove malicious threats, follow the steps below:

1. Begin by downloading Gridinsoft Anti-Malware, accessible via the blue button below or directly from the official website

2.Once the Gridinsoft setup file (setup-gridinsoft-fix.exe) is downloaded, execute it by clicking on the file.


3.Follow the installation setup wizard's instructions diligently.

Gridinsoft Setup Wizard

4. Access the "Scan Tab" on the application's start screen and launch a comprehensive "Full Scan" to examine your entire computer. This inclusive scan encompasses the memory, startup items, the registry, services, drivers, and all files, ensuring that it detects malware hidden in all possible locations.

Scan for TrojanDropper:Win32/BcryptInject.A!MTB Trojans

Be patient, as the scan duration depends on the number of files and your computer's hardware capabilities. Use this time to relax or attend to other tasks.

5. Upon completion, Anti-Malware will present a detailed report containing all the detected malicious items and threats on your PC.

The TrojanDropper:Win32/BcryptInject.A!MTB was Found

6. Select all the identified items from the report and confidently click the "Clean Now" button. This action will safely remove the malicious files from your computer, transferring them to the secure quarantine zone of the anti-malware program to prevent any further harmful actions.

The TrojanDropper:Win32/BcryptInject.A!MTB has been removed

8. If prompted, restart your computer to finalize the full system scan procedure. This step is crucial to ensure thorough removal of any remaining threats. After the restart, Gridinsoft Anti-Malware will open and display a message confirming the completion of the scan.

Remember Gridinsoft offers a 6-day free trial. This means you can take advantage of the trial period at no cost to experience the full benefits of the software and prevent any future malware infections on your system. Embrace this opportunity to fortify your computer's security without any financial commitment.

Trojan Killer for “TrojanDropper:Win32/BcryptInject.A!MTB” removal on locked PC

In situations where it becomes impossible to download antivirus applications directly onto the infected computer due to malware blocking access to websites, an alternative solution is to utilize the Trojan Killer application.

Trojan Killer - Main View

There is a really little number of security tools that are able to be set up on the USB drives, and antiviruses that can do so in most cases require to obtain quite an expensive license. For this instance, I can recommend you to use another solution of GridinSoft - Trojan Killer Portable. It has a 14-days cost-free trial mode that offers the entire features of the paid version. This term will definitely be 100% enough to wipe malware out.

Trojan Killer is a valuable tool in your cybersecurity arsenal, helping you to effectively remove malware from infected computers. Now, we will walk you through the process of using Trojan Killer from a USB flash drive to scan and remove malware on an infected PC. Remember, always obtain permission to scan and remove malware from a computer that you do not own.

Step 1: Download & Install Trojan Killer on a Clean Computer:

1. Go to the official GridinSoft website ( and download Trojan Killer to a computer that is not infected.

Download Trojan Killer

2. Insert a USB flash drive into this computer.

3. Install Trojan Killer to the "removable drive" following the on-screen instructions.

Install Trojan Killer to Removable Drive

4. Once the installation is complete, launch Trojan Killer.

Step 2: Update Signature Databases:

5. After launching Trojan Killer, ensure that your computer is connected to the Internet.

6. Click "Update" icon to download the latest signature databases, which will ensure the tool can detect the most recent threats.

Click Update Button

Step 3: Scan the Infected PC:

7. Safely eject the USB flash drive from the clean computer.

8. Boot the infected computer to the Safe Mode.

9. Insert the USB flash drive.

10. Run tk.exe

11. Once the program is open, click on "Full Scan" to begin the malware scanning process.

Searching TrojanDropper:Win32/BcryptInject.A!MTB Virus

Step 4: Remove Found Threats:

12. After the scan is complete, Trojan Killer will display a list of detected threats.

Searching TrojanDropper:Win32/BcryptInject.A!MTB Finished

13. Click on "Cure PC!" to remove the identified malware from the infected PC.

14. Follow any additional on-screen prompts to complete the removal process.

Restart needed

Step 5: Restart Your Computer:

15. Once the threats are removed, click on "Restart PC" to reboot your computer.

16. Remove the USB flash drive from the infected computer.

Congratulations on effectively removing TrojanDropper:Win32/BcryptInject.A!MTB and the concealed threats from your computer! You can now have peace of mind, knowing that they won't resurface again. Thanks to Gridinsoft's capabilities and commitment to cybersecurity, your system is now protected.

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About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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