Ransom:Win32/StopCrypt.KS!MTB Virus Removal

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

Seeing the Ransom:Win32/StopCrypt.KS!MTB detection name usually means that your PC is in big danger. This malware can correctly be named as ransomware – virus which encrypts your files and asks you to pay for their decryption. Deleteing it requires some peculiar steps that must be taken as soon as possible.

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When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
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Ransom:Win32/StopCrypt.KS!MTB detection is a malware detection you can spectate in your system. It usually appears after the provoking activities on your computer – opening the untrustworthy email messages, clicking the banner in the Internet or installing the program from unreliable resources. From the instance it appears, you have a short time to take action before it begins its destructive action. And be sure – it is better not to await these harmful actions.

What is Ransom:Win32/StopCrypt.KS!MTB virus?

Ransom:Win32/StopCrypt.KS!MTB is ransomware-type malware. It looks for the files on your disks, encrypts it, and after that asks you to pay the ransom for getting the decryption key. Besides making your documents inaccessible, this malware additionally does a lot of damage to your system. It alters the networking setups in order to stop you from reading the removal guides or downloading the antivirus. In some cases, Ransom:Win32/StopCrypt.KS!MTB can even prevent the launching of anti-malware programs.

Ransom:Win32/StopCrypt.KS!MTB Summary

In total, Ransom:Win32/StopCrypt.KS!MTB malware actions in the infected PC are next:

  • Behavioural detection: Executable code extraction – unpacking;
  • Sample contains Overlay data;
  • Presents an Authenticode digital signature;
  • Reads data out of its own binary image;
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Saami;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Accessed credential storage registry keys;
  • Collects information to fingerprint the system;
  • Anomalous binary characteristics;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Encrypting the documents kept on the target’s disk drives — so the victim cannot check these documents;
  • Blocking the launching of .exe files of anti-malware apps
  • Blocking the launching of installation files of security tools

Ransomware has actually been a headache for the last 4 years. It is challenging to realize a more damaging virus for both individual users and businesses. The algorithms used in Ransom:Win32/StopCrypt.KS!MTB (generally, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have more time than our galaxy already exists, and possibly will exist. But that virus does not do all these unpleasant things without delay – it may take up to several hours to cipher all of your documents. Thus, seeing the Ransom:Win32/StopCrypt.KS!MTB detection is a clear signal that you should begin the elimination process.

Where did I get the Ransom:Win32/StopCrypt.KS!MTB?

Typical ways of Ransom:Win32/StopCrypt.KS!MTB distribution are typical for all other ransomware variants. Those are one-day landing websites where users are offered to download the free software, so-called bait e-mails and hacktools. Bait e-mails are a relatively modern method in malware spreading – you get the e-mail that simulates some standard notifications about shipments or bank service conditions changes. Inside of the email, there is an infected MS Office file, or a link which opens the exploit landing page.

Malicious email spam

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

Preventing it looks pretty simple, but still needs a lot of focus. Malware can hide in different spots, and it is better to prevent it even before it gets into your PC than to depend on an anti-malware program. Simple cybersecurity awareness is just an essential item in the modern world, even if your relationship with a computer stays on YouTube videos. That may save you a great deal of money and time which you would spend while seeking a solution.

Ransom:Win32/StopCrypt.KS!MTB malware technical details

File Info:

name: 4A4F1AE2232ADFCA73B1.mlw
path: /opt/CAPEv2/storage/binaries/a7032f8b9aea271601db6674a9e4c43dfd0d7625dea6da8294768e7fdfce90de
crc32: 93E92B86
md5: 4a4f1ae2232adfca73b1ee2dcc114ad3
sha1: 38f9ff0612971ae67a218c692613118defd55316
sha256: a7032f8b9aea271601db6674a9e4c43dfd0d7625dea6da8294768e7fdfce90de
sha512: 8ea9dd373c94e79732990bd7f30c5ef8425f9826bdaaa465716ee89cf370c10dfe2f0b39b539c7d5d9da513bf85a7aee1d1eadb3d11c1ca355a2d69cdb81da93
ssdeep: 98304:Ia3inGKt/6ZpALsWXm8odTyyYqR3xqmOW:z6/6Iy8oYuYpW
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T14C16334332907CA5F6235F325F2E86E96B0EFC804E9473DA2A191E1F4D7067AD623716
sha3_384: 433c8420948be60a7f33ec049443d128717a5c10e1f86ef6d7a9bfe81402eb6b4b63b6a59bec1db6e4ada1e738eb4f24
ep_bytes: e8293a0000e989feffffff350c538100
timestamp: 2023-03-12 03:53:19

Version Info:

FileDescriptions: Nuts
InternalName: Buckiyarn.exe
LegalTrademark1: Gurumess
LegalTrademarks2: Gunshutting
OriginalFilename: Buskebaser.exe
ProductVersion: 76.47.92.28
Translation: 0x0709 0x04e2

Ransom:Win32/StopCrypt.KS!MTB also known as:

Bkav W32.AIDetectMalware
Lionic Trojan.Win32.Windigo.l!c
tehtris Generic.Malware
MicroWorld-eScan Trojan.GenericKD.70271945
Skyhigh Artemis!Trojan
McAfee GenericRXWL-IR!4A4F1AE2232A
Malwarebytes Trojan.MalPack.GS
Sangfor Trojan.Win32.Save.a
BitDefender Trojan.GenericKD.70271945
Cybereason malicious.612971
Symantec ML.Attribute.HighConfidence
Elastic Windows.Trojan.Smokeloader
ESET-NOD32 a variant of Win32/Kryptik.HVEQ
Cynet Malicious (score: 100)
APEX Malicious
ClamAV Win.Dropper.Tofsee-10013797-0
Kaspersky HEUR:Trojan-Spy.Win32.Windigo.gen
Alibaba Ransom:Win32/StopCrypt.50f00ff9
ViRobot Trojan.Win.Z.Windigo.4348792
Rising [email protected] (RDML:R+eiz+CxVtjXQOsuweoa8g)
Sophos Mal/Generic-S
F-Secure Heuristic.HEUR/AGEN.1305378
DrWeb Trojan.PackedENT.147
Trapmine malicious.moderate.ml.score
FireEye Generic.mg.4a4f1ae2232adfca
Emsisoft Trojan.GenericKD.70271945 (B)
Ikarus Trojan-Ransom.StopCrypt
Webroot W32.Windigo
Varist W32/Kryptik.LAE.gen!Eldorado
Avira HEUR/AGEN.1305378
Kingsoft malware.kb.a.998
Microsoft Ransom:Win32/StopCrypt.KS!MTB
Arcabit Trojan.Generic.D43043C9
ZoneAlarm HEUR:Trojan-Spy.Win32.Windigo.gen
GData Trojan.GenericKD.70271945
Google Detected
AhnLab-V3 Trojan/Win.Amadey.R611968
MAX malware (ai score=81)
DeepInstinct MALICIOUS
Cylance unsafe
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_GEN.R06CH07K723
Tencent Trojan.Win32.Obfuscated.gen
SentinelOne Static AI – Suspicious PE
Fortinet W32/Kryptik.HVEG!tr
AVG Win32:BotX-gen [Trj]
Avast Win32:BotX-gen [Trj]
CrowdStrike win/malicious_confidence_100% (W)

How to remove Ransom:Win32/StopCrypt.KS!MTB?

Ransom:Win32/StopCrypt.KS!MTB malware is incredibly difficult to eliminate manually. It places its files in several locations throughout the disk, and can restore itself from one of the elements. In addition, numerous modifications in the registry, networking settings and also Group Policies are really hard to find and return to the initial. It is better to utilize a specific tool – exactly, an anti-malware program. GridinSoft Anti-Malware will fit the most ideal for malware removal reasons.

Remove Ransom:Win32/StopCrypt.KS!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 Ransom:Win32/StopCrypt.KS!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 Ransom:Win32/StopCrypt.KS!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 Ransom:Win32/StopCrypt.KS!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 Ransom:Win32/StopCrypt.KS!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 “Ransom:Win32/StopCrypt.KS!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 Ransom:Win32/StopCrypt.KS!MTB Virus

Step 4: Remove Found Threats:

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

Searching Ransom:Win32/StopCrypt.KS!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 Ransom:Win32/StopCrypt.KS!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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