Ransom:Win32/StopCrypt.MZB!MTB

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Ransom:Win32/StopCrypt.MZB!MTB detection name means that your system is in big danger. This virus can correctly be identified as ransomware – type of malware which ciphers your files and forces you to pay for their decryption. Removing it requires some peculiar steps that must be done as soon as possible.
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Ransom:Win32/StopCrypt.MZB!MTB detection is a virus detection you can spectate in your system. It generally shows up after the preliminary actions on your PC – opening the dubious e-mail, clicking the advertisement in the Internet or installing the program from dubious resources. From the second it appears, you have a short time to take action before it begins its harmful action. And be sure – it is far better not to wait for these malicious actions.

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

Ransom:Win32/StopCrypt.MZB!MTB is ransomware-type malware. It searches for the documents on your disk drive, ciphers it, and after that asks you to pay the ransom for receiving the decryption key. Besides making your documents locked, this virus additionally does a ton of harm to your system. It changes the networking settings in order to prevent you from reading the elimination articles or downloading the antivirus. Sometimes, Ransom:Win32/StopCrypt.MZB!MTB can also prevent the launching of anti-malware programs.

Ransom:Win32/StopCrypt.MZB!MTB Summary

Summarizingly, Ransom:Win32/StopCrypt.MZB!MTB malware actions in the infected computer are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Behavioural detection: Executable code extraction – unpacking;
  • Executed a command line with /C or /R argument to terminate command shell on completion which can be used to hide execution;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Dynamic (imported) function loading detected;
  • Reads data out of its own binary image;
  • A process created a hidden window;
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Divehi;
  • Authenticode signature is invalid;
  • Uses Windows utilities for basic functionality;
  • Enumerates services, possibly for anti-virtualization;
  • Installs itself for autorun at Windows startup;
  • Installs itself for autorun at Windows startup;
  • CAPE detected the Tofsee malware family;
  • Created a service that was not started;
  • Anomalous binary characteristics;
  • Uses suspicious command line tools or Windows utilities;
  • Encrypting the documents located on the victim’s drives — so the victim cannot open 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 major problem for the last 4 years. It is hard to realize a more damaging malware for both individual users and companies. The algorithms utilized in Ransom:Win32/StopCrypt.MZB!MTB (generally, 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 actually exists, and possibly will exist. But that malware does not do all these terrible things instantly – it can take up to a few hours to cipher all of your files. Thus, seeing the Ransom:Win32/StopCrypt.MZB!MTB detection is a clear signal that you need to begin the removal process.

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

Typical tactics of Ransom:Win32/StopCrypt.MZB!MTB injection are common for all other ransomware variants. Those are one-day landing websites where users are offered to download the free program, so-called bait emails and hacktools. Bait e-mails are a relatively modern strategy in malware distribution – you receive the email that mimics some routine notifications about deliveries or bank service conditions updates. Inside of the e-mail, there is an infected MS Office file, or a web 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 uncomplicated, but still needs tons of awareness. Malware can hide in various spots, and it is far better to stop it even before it gets into your computer than to rely on an anti-malware program. General cybersecurity awareness is just an important item in the modern world, even if your relationship with a PC remains on YouTube videos. That can save you a great deal of money and time which you would spend while looking for a fix guide.

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

File Info:

name: 8B5EA6585BE11FB5E4AD.mlw
path: /opt/CAPEv2/storage/binaries/0d92a909c18f8af9bc3a7298eff150565394c26fe136218038927bbe9214a6fa
crc32: 5C01AB80
md5: 8b5ea6585be11fb5e4adb18a42d29b4e
sha1: 8bfce6aab3ad273ec72812783c9e9efbe0c28a8b
sha256: 0d92a909c18f8af9bc3a7298eff150565394c26fe136218038927bbe9214a6fa
sha512: 389810febae01e0d6ebd58f2e6eea6830d85bef8b61661be08231954a7a07d91a42fe348497ec2dda54efeff4602ac6e70f09d78f3255ff30f1538fc334f394a
ssdeep: 12288:qrxwqlOkPJGsK4+nax+bIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIr:IiqnGbn7
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T127F64C2658269263E12812FD372F3792DEEDCBF9E15041F7319984F44C22EAE449B25F
sha3_384: 6da725f3468d5e5dc77595ec232b079fbbc14e7a22b9e52212acc931a0ccf84605fb78f3c99dbc75aff8f34ac6839e03
ep_bytes: 8bff558bece876610000e8110000005d
timestamp: 2020-08-01 14:11:38

Version Info:

0: [No Data]

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

BkavW32.AIDetect.malware2
Elasticmalicious (high confidence)
DrWebTrojan.Siggen16.16834
MicroWorld-eScanTrojan.GenericKDZ.81961
FireEyeGeneric.mg.8b5ea6585be11fb5
ALYacTrojan.GenericKDZ.81961
CylanceUnsafe
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 0058c3841 )
K7GWTrojan ( 0058c3841 )
CyrenW32/Kryptik.FSC.gen!Eldorado
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.HNUT
ClamAVWin.Packed.Ulise-9917518-0
KasperskyHEUR:Trojan.Win32.Bingoml.gen
BitDefenderTrojan.GenericKDZ.81961
AvastWin32:CrypterX-gen [Trj]
TencentBackdoor.Win32.Tofsee.16000134
Ad-AwareTrojan.GenericKDZ.81961
EmsisoftTrojan.GenericKDZ.81961 (B)
BaiduWin32.Trojan.Kryptik.jm
ZillyaTrojan.Kryptik.Win32.3660733
McAfee-GW-EditionBehavesLike.Win32.Dropper.vz
SophosML/PE-A
SentinelOneStatic AI – Malicious PE
GDataWin32.Trojan.BSE.1C41Z77
JiangminTrojan.Agent.dtnq
MaxSecureTrojan.Malware.121218.susgen
MAXmalware (ai score=84)
ArcabitTrojan.Generic.D14029
MicrosoftRansom:Win32/StopCrypt.MZB!MTB
CynetMalicious (score: 100)
AhnLab-V3Infostealer/Win.SmokeLoader.R460442
Acronissuspicious
McAfeePacked-GEE!8B5EA6585BE1
MalwarebytesTrojan.MalPack
APEXMalicious
RisingMalware.Obscure!1.A3BB (RDMK:cmRtazqLZUahjJ2uLBElH+tetGZn)
YandexTrojan.GenKryptik!WHEpes3HNf8
IkarusTrojan.Win32
eGambitUnsafe.AI_Score_69%
FortinetW32/Kryptik.FSC!tr
AVGWin32:CrypterX-gen [Trj]
PandaTrj/GdSda.A
CrowdStrikewin/malicious_confidence_90% (D)

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

Ransom:Win32/StopCrypt.MZB!MTB malware is very hard to eliminate by hand. It puts its data in numerous places throughout the disk, and can restore itself from one of the elements. Furthermore, various changes in the registry, networking setups and Group Policies are pretty hard to discover and return to the initial. It is far better to utilize a specific program – exactly, an anti-malware tool. GridinSoft Anti-Malware will fit the most ideal for virus elimination purposes.

Why GridinSoft Anti-Malware? It is really lightweight and has its detection databases updated just about every hour. Furthermore, it does not have such bugs and exposures as Microsoft Defender does. The combination of these facts makes GridinSoft Anti-Malware ideal for eliminating malware of any kind.

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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