Ransom:Win32/StopCrypt.MZF!MTB

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Ransom:Win32/StopCrypt.MZF!MTB detection name usually means that your system is in big danger. This malware can correctly be named as ransomware – virus which ciphers your files and forces you to pay for their decryption. Removing it requires some peculiar steps that must be taken as soon as possible.
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Ransom:Win32/StopCrypt.MZF!MTB detection is a virus detection you can spectate in your computer. It frequently appears after the preliminary procedures on your computer – opening the untrustworthy e-mail messages, clicking the banner in the Web or mounting the program from dubious sources. From the instance it appears, you have a short time to do something about it before it starts its malicious activity. And be sure – it is better not to await these harmful actions.

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

Ransom:Win32/StopCrypt.MZF!MTB is ransomware-type malware. It looks for the files on your disks, ciphers it, and after that asks you to pay the ransom for getting the decryption key. Besides making your documents locked, this malware also does a lot of harm to your system. It changes the networking setups in order to avoid you from checking out the elimination tutorials or downloading the anti-malware program. In some cases, Ransom:Win32/StopCrypt.MZF!MTB can even block the launching of anti-malware programs.

Ransom:Win32/StopCrypt.MZF!MTB Summary

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

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Behavioural detection: Executable code extraction – unpacking;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Possible date expiration check, exits too soon after checking local time;
  • Dynamic (imported) function loading detected;
  • A process created a hidden window;
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Chinese;
  • Authenticode signature is invalid;
  • Behavioural detection: Injection (Process Hollowing);
  • Executed a process and injected code into it, probably while unpacking;
  • Detects Sandboxie through the presence of a library;
  • Detects Avast Antivirus through the presence of a library;
  • Behavioural detection: Injection (inter-process);
  • Created a process from a suspicious location;
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization;
  • Ciphering the files kept on the victim’s drive — so the victim cannot use these documents;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of anti-malware apps

Ransomware has been a nightmare for the last 4 years. It is challenging to imagine a more hazardous virus for both individual users and businesses. The algorithms utilized in Ransom:Win32/StopCrypt.MZF!MTB (usually, 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. But that virus does not do all these bad things without delay – it can take up to a few hours to cipher all of your documents. Hence, seeing the Ransom:Win32/StopCrypt.MZF!MTB detection is a clear signal that you must begin the clearing procedure.

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

Typical ways of Ransom:Win32/StopCrypt.MZF!MTB injection are standard for all other ransomware examples. Those are one-day landing sites where victims are offered to download the free program, so-called bait e-mails and hacktools. Bait emails are a pretty new tactic in malware distribution – you receive the e-mail that simulates some routine notifications about shipments or bank service conditions updates. Inside of the e-mail, there is a corrupted MS Office file, or a web link which leads to the exploit landing page.

Malicious email spam

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

Avoiding it looks fairly simple, but still needs a lot of attention. Malware can hide in various spots, and it is far better to prevent it even before it goes into your computer than to rely upon an anti-malware program. Simple cybersecurity knowledge is just an important thing in the modern world, even if your relationship with a computer remains on YouTube videos. That may keep you a lot of money and time which you would spend while seeking a solution.

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

File Info:

name: 3CAB009FCA0C8A4F5FB3.mlw
path: /opt/CAPEv2/storage/binaries/60a3322cbdb5caf90c4545ff16d22d685b3570749c26c184c38c3e74c26b8167
crc32: 83F028C1
md5: 3cab009fca0c8a4f5fb3ae33103470bd
sha1: df124db9dd161f0830936fc20e7a6071c92c9ff0
sha256: 60a3322cbdb5caf90c4545ff16d22d685b3570749c26c184c38c3e74c26b8167
sha512: 42586e2adb0b7b186ae50b7d7c7eb6ba1c9a10dac224cd3df108a24aa427fc4f51dd20fca74205450f92e4b58cc1a9ec897dea1c2c62bf75dca3fc695341a5a1
ssdeep: 3072:MBuaYDomPPSPbQbclLXkhYsza8y7+Rx6VoKk2vWrxpzbgqru:MtmPPSkbcyhYs28y7+zvKFvuzbgwu
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1CD54AD31F5EBC871C49305358821DAA19A3AF8317A65958F3764173E5F30E8C8AE637E
sha3_384: a1f5e65f8f41523a01c83b3d14489a8dbef24b63e40fff7f4f7b8f221af55c5baa97d4b438a404c97a8cad60bbcb1a86
ep_bytes: e8c25e0000e978feffffcccccccccccc
timestamp: 2020-07-21 18:29:12

Version Info:

InternationalName: bomgvioci.iwa
Copyright: Copyrighz (C) 2021, fudkort
ProjectVersion: 3.10.70.17
Translation: 0x0129 0x0794

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

BkavW32.AIDetect.malware2
LionicTrojan.Win32.Injuke.trXd
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.GenericKD.38502940
FireEyeGeneric.mg.3cab009fca0c8a4f
ALYacTrojan.GenericKD.38502940
CylanceUnsafe
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 0053d5971 )
AlibabaTrojanSpy:Win32/Stealer.a388b1e6
K7GWTrojan ( 0053d5971 )
CrowdStrikewin/malicious_confidence_100% (W)
CyrenW32/Qbot.FK.gen!Eldorado
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.HNZI
APEXMalicious
ClamAVWin.Trojan.Generic-9935605-0
KasperskyHEUR:Trojan-Spy.Win32.Stealer.gen
BitDefenderTrojan.GenericKD.38502940
AvastWin32:CrypterX-gen [Trj]
Ad-AwareTrojan.GenericKD.38502940
SophosMal/Generic-R + Mal/Agent-AWV
F-SecureTrojan.TR/AD.MalwareCrypter.ssazf
DrWebTrojan.PWS.Stealer.26952
TrendMicroTROJ_GEN.R002C0PAD22
McAfee-GW-EditionBehavesLike.Win32.Injector.dm
EmsisoftTrojan.GenericKD.38502940 (B)
IkarusTrojan.Win32.Crypt
GDataWin32.Trojan.BSE.16VOW5Z
AviraTR/AD.MalwareCrypter.ssazf
MAXmalware (ai score=80)
Antiy-AVLTrojan/Win32.SGeneric
KingsoftWin32.Troj.Generic_a.a.(kcloud)
ArcabitTrojan.Generic.D24B821C
MicrosoftRansom:Win32/StopCrypt.MZF!MTB
CynetMalicious (score: 100)
AhnLab-V3Trojan/Win.MalPE.R464704
McAfeeGenericRXAA-AA!3CAB009FCA0C
VBA32BScope.TrojanSpy.Stealer
MalwarebytesTrojan.MalPack.GS
TrendMicro-HouseCallTROJ_GEN.R002C0PAD22
RisingTrojan.Kryptik!1.DB29 (CLOUD)
SentinelOneStatic AI – Malicious PE
eGambitUnsafe.AI_Score_50%
FortinetW32/GenKryptik.ERHN!tr
BitDefenderThetaGen:NN.ZexaF.34160.rqW@a0kjQ4mG
AVGWin32:CrypterX-gen [Trj]
Cybereasonmalicious.9dd161
PandaTrj/GdSda.A
MaxSecureTrojan.Malware.300983.susgen

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

Ransom:Win32/StopCrypt.MZF!MTB malware is very difficult to remove manually. It puts its documents in a variety of locations throughout the disk, and can get back itself from one of the elements. In addition, countless modifications in the windows registry, networking configurations and Group Policies are quite hard to discover and revert to the original. It is far better to utilize a special program – exactly, an anti-malware tool. GridinSoft Anti-Malware will definitely fit the most ideal for malware elimination objectives.

Why GridinSoft Anti-Malware? It is very lightweight and has its detection databases updated just about every hour. Additionally, it does not have such problems and vulnerabilities as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware suitable for getting rid of malware of any type.

Remove the viruses with GridinSoft Anti-Malware

  • Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
  • Gridinsoft Anti-Malware during the scan process

  • Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
  • GridinSoft Anti-Malware scan results

  • When the scan is over, you may choose the action for each detected virus. For all files of [SHORT_NAME] the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
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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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