Trojan:MSIL/AsyncRAT.Z!MTB Virus Removal

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

Seeing the Trojan:MSIL/AsyncRAT.Z!MTB malware detection usually means that your PC is in big danger. This virus can correctly be named as ransomware – sort of malware which ciphers your files and asks you to pay for their decryption. Removing it requires some specific steps that must be done as soon as possible.

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Trojan:MSIL/AsyncRAT.Z!MTB detection is a virus detection you can spectate in your computer. It usually appears after the preliminary activities on your PC – opening the untrustworthy e-mail, clicking the banner in the Web or mounting the program from suspicious resources. From the second it shows up, you have a short time to take action before it begins its malicious activity. And be sure – it is much better not to wait for these malicious things.

What is Trojan:MSIL/AsyncRAT.Z!MTB virus?

Trojan:MSIL/AsyncRAT.Z!MTB is ransomware-type malware. It looks for the documents on your computer, encrypts it, and then asks you to pay the ransom for receiving the decryption key. Besides making your documents inaccessible, this virus also does a ton of harm to your system. It modifies the networking settings in order to prevent you from reading the removal articles or downloading the antivirus. In some cases, Trojan:MSIL/AsyncRAT.Z!MTB can also block the setup of anti-malware programs.

Trojan:MSIL/AsyncRAT.Z!MTB Summary

In total, Trojan:MSIL/AsyncRAT.Z!MTB virus activities in the infected computer are next:

  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Anomalous .NET characteristics;
  • Encrypting the documents kept on the target’s drive — so the victim cannot use these files;
  • Blocking the launching of .exe files of anti-virus apps
  • Blocking the launching of installation files of anti-virus programs

Ransomware has been a headache for the last 4 years. It is challenging to realize a more damaging virus for both individual users and companies. The algorithms utilized in Trojan:MSIL/AsyncRAT.Z!MTB (typically, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have a lot more time than our galaxy currently exists, and possibly will exist. However, that virus does not do all these unpleasant things instantly – it can require up to several hours to cipher all of your files. Thus, seeing the Trojan:MSIL/AsyncRAT.Z!MTB detection is a clear signal that you have to begin the elimination procedure.

Where did I get the Trojan:MSIL/AsyncRAT.Z!MTB?

Routine methods of Trojan:MSIL/AsyncRAT.Z!MTB injection are basic for all other ransomware examples. Those are one-day landing web pages where users are offered to download the free app, so-called bait emails and hacktools. Bait emails are a quite new tactic in malware distribution – you receive the email that simulates some regular notifications about shipments or bank service conditions modifications. Inside of the email, there is an infected MS Office file, or a link which leads to the exploit landing page.

Malicious email spam

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

Preventing it looks quite simple, however, still requires a lot of attention. Malware can hide in various spots, and it is better to stop it even before it gets into your PC than to rely upon an anti-malware program. Simple cybersecurity knowledge is just an essential item in the modern world, even if your interaction with a computer remains on YouTube videos. That may keep you a great deal of time and money which you would certainly spend while trying to find a fixing guide.

Trojan:MSIL/AsyncRAT.Z!MTB malware technical details

File Info:

name: AA12FF45C4279701963B.mlw
path: /opt/CAPEv2/storage/binaries/e6db950824ebaa85c4bd6b49915bee14d1bbdb7124e68e5494fce0b6d4ae7b38
crc32: 4797B60A
md5: aa12ff45c4279701963b9c2dababd52f
sha1: 66268d4c6af13d741fcfa06fb0471525b93b65f7
sha256: e6db950824ebaa85c4bd6b49915bee14d1bbdb7124e68e5494fce0b6d4ae7b38
sha512: bf9a68c5c86fd752956bbbe257f0805c837c5a5346f0be3ac6b80e846a2c6334076914f1a5718efc8b8dbbdd9672a3f160499a3e5aa6ea1fa8466d84ad52be71
ssdeep: 49152:ovkXwNjQ2NxfVtKststCcuJFhHIuwBv/t+nQpMSv/NOH:bAlvN9BtTPPouG3tGcMkkH
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1B0B5330746D8B3F1E5EC2FB98062217B85A144DD156B8EF11DAD4FCE48251BBBEA08C7
sha3_384: cfbb8f78406377c113e364c55c7959833b3f8e52918cb6141dd62084afb458d132e8e92384de8e95ad732c10d2ca7d91
ep_bytes: ff250020400000000000000000000000
timestamp: 2023-07-31 15:49:41

Version Info:

Translation: 0x0000 0x04b0
FileDescription:
FileVersion: 0.0.0.0
InternalName: Script.exe
LegalCopyright:
OriginalFilename: Script.exe
ProductVersion: 0.0.0.0
Assembly Version: 0.0.0.0

Trojan:MSIL/AsyncRAT.Z!MTB also known as:

Bkav W32.AIDetectMalware.CS
Lionic Trojan.Win32.Agent.Y!c
MicroWorld-eScan Gen:Variant.Ransom.Loki.5934
FireEye Generic.mg.aa12ff45c4279701
Skyhigh BehavesLike.Win32.Generic.vc
McAfee Artemis!AA12FF45C427
Cylance unsafe
Zillya Dropper.Agent.Win32.552268
Sangfor Suspicious.Win32.Save.a
K7AntiVirus Trojan ( 005979a91 )
Alibaba Trojan:MSIL/RedLine.f29bd6cb
K7GW Trojan ( 005979a91 )
CrowdStrike win/malicious_confidence_100% (W)
VirIT Trojan.Win32.Genus.SLL
Symantec Trojan Horse
ESET-NOD32 a variant of MSIL/TrojanDropper.Agent.FPU
APEX Malicious
Kaspersky HEUR:Trojan.MSIL.Agent.gen
BitDefender Gen:Variant.Ransom.Loki.5934
NANO-Antivirus Trojan.Win32.Sirefef.jyexsa
Avast Win32:CrypterX-gen [Trj]
Tencent Malware.Win32.Gencirc.13eb6b53
Sophos Troj/MDrop-JWW
F-Secure Trojan.TR/Dropper.Gen
DrWeb Trojan.PackedNET.2595
VIPRE Gen:Variant.Ransom.Loki.5934
TrendMicro TROJ_GEN.R002C0DAT24
Trapmine malicious.moderate.ml.score
Emsisoft Gen:Variant.Ransom.Loki.5934 (B)
Ikarus Trojan.MSIL.Krypt
GData Gen:Variant.Ransom.Loki.5934
Google Detected
Avira TR/Dropper.Gen
Antiy-AVL Trojan/MSIL.AsyncRAT
Kingsoft MSIL.Trojan.Agent.gen
Xcitium Malware@#3udf9f5dnm31c
Arcabit Trojan.Ransom.Loki.D172E
ViRobot Trojan.Win.Z.Agent.2370560.D
ZoneAlarm HEUR:Trojan.MSIL.Agent.gen
Microsoft Trojan:MSIL/AsyncRAT.Z!MTB
Varist W32/Azorult.D.gen!Eldorado
AhnLab-V3 Trojan/Win.Generic.C5173441
VBA32 TScope.Trojan.MSIL
ALYac Gen:Variant.Ransom.Loki.5934
MAX malware (ai score=81)
Malwarebytes Trojan.Dropper
Panda Trj/GdSda.A
TrendMicro-HouseCall TROJ_GEN.R002C0DAT24
Rising Malware.Obfus/[email protected] (RDM.MSIL2:XrQvdx0Wp8JXdqpo/6FCbw)
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.8703358.susgen
Fortinet MSIL/GenKryptik.FVDD!tr
BitDefenderTheta Gen:NN.ZemsilF.36744.qo0@aON2pOh
AVG Win32:CrypterX-gen [Trj]
Cybereason malicious.c6af13
DeepInstinct MALICIOUS

How to remove Trojan:MSIL/AsyncRAT.Z!MTB?

Trojan:MSIL/AsyncRAT.Z!MTB malware is extremely difficult to erase manually. It places its data in several locations throughout the disk, and can recover itself from one of the elements. Moreover, a number of alterations in the registry, networking setups and Group Policies are pretty hard to find and revert to the initial. It is far better to make use of a special app – exactly, an anti-malware tool. GridinSoft Anti-Malware will fit the best for malware elimination goals.

Remove Trojan:MSIL/AsyncRAT.Z!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 Trojan:MSIL/AsyncRAT.Z!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 gridinsoft.com.

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

setup-gridinsoft-fix.exe

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 Trojan:MSIL/AsyncRAT.Z!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 Trojan:MSIL/AsyncRAT.Z!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 Trojan:MSIL/AsyncRAT.Z!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 “Trojan:MSIL/AsyncRAT.Z!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 (gridinsoft.com) 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 Trojan:MSIL/AsyncRAT.Z!MTB Virus

Step 4: Remove Found Threats:

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

Searching Trojan:MSIL/AsyncRAT.Z!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 Trojan:MSIL/AsyncRAT.Z!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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