Ransom:Win32/StopCrypt.MZA!MTB

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Ransom:Win32/StopCrypt.MZA!MTB malware detection means that your computer is in big danger. This virus can correctly be identified as ransomware – type of malware which encrypts your files and asks 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.MZA!MTB detection is a virus detection you can spectate in your system. It often shows up after the preliminary actions on your PC – opening the dubious e-mail, clicking the banner in the Internet or setting up the program from dubious resources. From the second it shows up, you have a short time to act until it starts its malicious activity. And be sure – it is better not to await these destructive effects.

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

Ransom:Win32/StopCrypt.MZA!MTB is ransomware-type malware. It looks for the files on your disk drive, encrypts it, and after that asks you to pay the ransom for receiving the decryption key. Besides making your files locked, this virus also does a ton of harm to your system. It changes the networking setups in order to stop you from reading the removal manuals or downloading the antivirus. In rare cases, Ransom:Win32/StopCrypt.MZA!MTB can even block the launching of anti-malware programs.

Ransom:Win32/StopCrypt.MZA!MTB Summary

Summarizingly, Ransom:Win32/StopCrypt.MZA!MTB ransomware activities in the infected computer 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;
  • Dynamic (imported) function loading detected;
  • Enumerates the modules from a process (may be used to locate base addresses in process injection);
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Hungarian;
  • The binary contains an unknown PE section name indicative of packing;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • CAPE detected the RedLine malware family;
  • Encrypting the documents located on the victim’s disks — so the victim cannot use these documents;
  • Blocking the launching of .exe files of anti-virus programs
  • Blocking the launching of installation files of security tools

Ransomware has been a horror story for the last 4 years. It is challenging to realize a more damaging virus for both individuals and businesses. The algorithms used in Ransom:Win32/StopCrypt.MZA!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 actually exists, and possibly will exist. But that virus does not do all these bad things instantly – it can require up to several hours to cipher all of your files. Therefore, seeing the Ransom:Win32/StopCrypt.MZA!MTB detection is a clear signal that you have to start the removal process.

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

Standard methods of Ransom:Win32/StopCrypt.MZA!MTB spreading are usual for all other ransomware examples. Those are one-day landing web pages where users are offered to download and install the free program, so-called bait emails and hacktools. Bait emails are a quite modern tactic in malware distribution – you receive the email that simulates some routine notifications about deliveries or bank service conditions updates. Within the e-mail, there is a malicious 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 spots, and it is much better to prevent it even before it goes into your computer than to depend on an anti-malware program. Basic cybersecurity awareness is just an important item in the modern world, even if your relationship with a PC stays on YouTube videos. That may save you a great deal of money and time which you would certainly spend while trying to find a fix guide.

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

File Info:

name: 1D7B798D5EA91FCBE592.mlw
path: /opt/CAPEv2/storage/binaries/7fe9c6169c86f79b884eb269649b1e279d2619cc1fe69982f74f0371629dec33
crc32: FFDA846F
md5: 1d7b798d5ea91fcbe592f9db13e3dcee
sha1: af7bc11d34b285c9b2b89788e04d7e650119fb40
sha256: 7fe9c6169c86f79b884eb269649b1e279d2619cc1fe69982f74f0371629dec33
sha512: d2cdc3d0c4e51ded9198c8418bbf3c084b011ec2cbfe88cb3811e14992fb9f930b0f3638fb6c800a37c2be01ad7fcb5957e20887f742a22e6c65da0b7f43869b
ssdeep: 6144:lL/Wbn4DMICXuyoA/uvJvnFzOeTFnJpuSaIcNIOPf/iF7Rg9uzbgwuQ5:lrWbn4/U/oP97TFJpxaIZW9unnX
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1F754F13179ACC831C59353768860C2E56A7EF8206AE0558B37B9272D6EB0EDC52F135E
sha3_384: 15fcf76df5d60d30e8018a935492ef537e68e1172df72438526aa8cffb5f2291c84bc0fdd7a1db2fdd4a95525c8408ec
ep_bytes: e8aa410000e979feffffcccccccccccc
timestamp: 2021-03-20 14:53:35

Version Info:

InternationalName: bomgpioci.iwa
Copyright: Copyrighz (C) 2021, fudkat
ProjectVersion: 3.14.7.77
Translation: 0x0125 0x078a

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

BkavW32.AIDetect.malware1
LionicTrojan.Win32.Convagent.4!c
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.Generic.31381959
FireEyeGeneric.mg.1d7b798d5ea91fcb
CAT-QuickHealTrojan.IgenericPMF.S25745021
ALYacTrojan.Generic.31381959
CylanceUnsafe
SangforTrojan.Win32.Save.a
K7AntiVirusRiskware ( 0040eff71 )
AlibabaRansom:Win32/StopCrypt.93a0b14a
K7GWTrojan ( 0058bdf21 )
CyrenW32/Kryptik.FWV.gen!Eldorado
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.HNSP
APEXMalicious
Paloaltogeneric.ml
ClamAVWin.Dropper.Tofsee-9916242-0
BitDefenderTrojan.Generic.31381959
AvastWin32:TrojanX-gen [Trj]
TencentWin32.Trojan-spy.Stealer.Eanz
Ad-AwareTrojan.Generic.31381959
EmsisoftTrojan.Crypt (A)
ComodoMalware@#3ijswhn0aczwr
DrWebTrojan.PWS.Stealer.26952
ZillyaTrojan.Kryptik.Win32.3654359
McAfee-GW-EditionBehavesLike.Win32.Generic.dc
SophosMal/Generic-S + Mal/Agent-AWV
SentinelOneStatic AI – Malicious PE
GDataWin32.Trojan.BSE.1J4KG8N
JiangminTrojanSpy.Stealer.kwr
AviraTR/Crypt.Agent.yrtjl
MAXmalware (ai score=100)
Antiy-AVLTrojan/Generic.ASMalwS.34EE9F6
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftRansom:Win32/StopCrypt.MZA!MTB
CynetMalicious (score: 100)
AhnLab-V3CoinMiner/Win.Glupteba.R458917
Acronissuspicious
McAfeePacked-GEE!1D7B798D5EA9
TACHYONTrojan-Spy/W32.InfoStealer.300032.B
VBA32BScope.Trojan.Agent
MalwarebytesTrojan.MalPack.GS
TrendMicro-HouseCallTROJ_GEN.R002C0PLG21
RisingTrojan.Kryptik!1.DB29 (CLOUD)
IkarusTrojan.Win32.Crypt
FortinetW32/Lockbit.FSWW!tr
BitDefenderThetaGen:NN.ZexaF.34160.suW@aC87hnoK
AVGWin32:TrojanX-gen [Trj]
PandaTrj/Genetic.gen

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

Ransom:Win32/StopCrypt.MZA!MTB malware is incredibly hard to delete manually. It stores its data in multiple locations throughout the disk, and can get back itself from one of the elements. In addition, numerous alterations in the windows registry, networking settings and also Group Policies are really hard to locate and return to the initial. It is much better to make use of a specific tool – exactly, an anti-malware tool. GridinSoft Anti-Malware will fit the best for malware elimination reasons.

Why GridinSoft Anti-Malware? It is pretty light-weight and has its detection databases updated practically every hour. Additionally, it does not have such bugs and exposures as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware perfect 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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