Ransom:Win32/StopCrypt.SW!MTB

Written by Robert Bailey
Seeing the Ransom:Win32/StopCrypt.SW!MTB detection usually means that your system is in big danger. This computer virus can correctly be named as ransomware – virus which ciphers 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.SW!MTB detection is a malware detection you can spectate in your computer. It generally appears after the provoking activities on your computer – opening the dubious e-mail messages, clicking the advertisement in the Internet or mounting the program from dubious resources. From the second it shows up, you have a short time to act until it begins its harmful activity. And be sure – it is better not to await these destructive things.

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

Ransom:Win32/StopCrypt.SW!MTB is ransomware-type malware. It looks for the documents on your disk drives, encrypts it, and after that asks you to pay the ransom for getting the decryption key. Besides making your documents locked, this malware additionally does a ton of harm to your system. It alters the networking settings in order to avoid you from checking out the elimination guides or downloading the antivirus. Sometimes, Ransom:Win32/StopCrypt.SW!MTB can even stop the setup of anti-malware programs.

Ransom:Win32/StopCrypt.SW!MTB Summary

In summary, Ransom:Win32/StopCrypt.SW!MTB ransomware actions in the infected computer are next:

  • Behavioural detection: Executable code extraction – unpacking;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Romanian;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization;
  • Encrypting the files located on the target’s disk drive — so the victim cannot use these files;
  • Blocking the launching of .exe files of anti-malware programs
  • Blocking the launching of installation files of security tools

Ransomware has actually been a horror story for the last 4 years. It is difficult to imagine a more damaging malware for both individual users and companies. The algorithms used in Ransom:Win32/StopCrypt.SW!MTB (usually, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need more time than our galaxy already exists, and possibly will exist. But that virus does not do all these unpleasant things instantly – it may require up to several hours to cipher all of your files. Therefore, seeing the Ransom:Win32/StopCrypt.SW!MTB detection is a clear signal that you have to start the clearing process.

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

Usual methods of Ransom:Win32/StopCrypt.SW!MTB distribution are basic for all other ransomware examples. Those are one-day landing websites where victims are offered to download the free app, so-called bait emails and hacktools. Bait emails are a relatively new tactic in malware spreading – you receive the email that mimics some regular notifications about deliveries or bank service conditions changes. 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.

Avoiding it looks fairly easy, but still demands tons of focus. Malware can hide in different spots, and it is better to stop it even before it goes into your PC than to depend on an anti-malware program. Essential cybersecurity awareness is just an important thing in the modern world, even if your interaction with a computer remains on YouTube videos. That can save you a lot of time and money which you would certainly spend while trying to find a solution.

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

File Info:

name: AA7A2EF84D2DED0D8DB3.mlw
path: /opt/CAPEv2/storage/binaries/d1d3ed6835bddd4d5b83f9e8efc2f7cbf266c24dfb90dffc2f904c252f3cd896
crc32: EEF312EF
md5: aa7a2ef84d2ded0d8db330bce729a330
sha1: ab3e13bebbbd5a90fe68823824081b28be7103e1
sha256: d1d3ed6835bddd4d5b83f9e8efc2f7cbf266c24dfb90dffc2f904c252f3cd896
sha512: ad666aebccbe48e120b2b6bf39167fe0a5e693f2f9e10515de2d81c5a19df3204ec90ffd3ba1e63fea9be0733319975579d63d60e516ad8dee8121cc70fa408f
ssdeep: 3072:yLZpt44D314nL/GAlK6gjSX5AjHNCnatIw2zNsOxriclSDsLVKx:yLV5DlYL/GAlKXjSUPI/JJhltL4
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1B024C0223680C032D76B1275A811D7B56A7FB8B40A79A6CB7FD80A7C5F312E39D25347
sha3_384: e9f7a9e4872ae109712c6d22b20b27cdae127d3d455c308cc0aa58fa9ac3949d8ca6bdb364ced23eafaa856cd2162599
ep_bytes: e803960000e979feffff8bff558bec8b
timestamp: 2021-08-02 17:09:50

Version Info:

Translations: 0x0519 0x007f

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

BkavW32.AIDetect.malware2
tehtrisGeneric.Malware
ClamAVWin.Packed.Tofsee-9975829-0
FireEyeGeneric.mg.aa7a2ef84d2ded0d
CAT-QuickHealRansom.Stop.P5
CylanceUnsafe
SangforTrojan.Win32.Save.a
Cybereasonmalicious.ebbbd5
SymantecPacked.Generic.528
Elasticmalicious (high confidence)
APEXMalicious
Paloaltogeneric.ml
CynetMalicious (score: 100)
KasperskyUDS:Backdoor.Win32.Mokes.gen
AvastBotX-gen [Trj]
SophosML/PE-A + Troj/Krypt-QV
McAfee-GW-EditionBehavesLike.Win32.Worm.dh
Trapminesuspicious.low.ml.score
SentinelOneStatic AI – Suspicious PE
MicrosoftRansom:Win32/StopCrypt.SW!MTB
GoogleDetected
VBA32Malware-Cryptor.2LA.gen
RisingTrojan.Generic@AI.100 (RDML:BVjezJQkIE59D8Rq+aHMxg)
IkarusTrojan.SmokeLoader
FortinetW32/Kryptik.HACT!tr
AVGBotX-gen [Trj]
CrowdStrikewin/malicious_confidence_100% (W)

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

Ransom:Win32/StopCrypt.SW!MTB malware is extremely difficult to eliminate by hand. It stores its data in numerous places throughout the disk, and can restore itself from one of the elements. Furthermore, numerous alterations in the registry, networking setups and Group Policies are fairly hard to locate and return to the original. It is better to utilize a specific tool – exactly, an anti-malware program. GridinSoft Anti-Malware will fit the best for virus elimination reasons.

Why GridinSoft Anti-Malware? It is pretty light-weight and has its detection databases updated nearly every hour. Furthermore, it does not have such bugs and exploits as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware ideal for removing 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

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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