What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Ransom:Win32/StopCrypt.PAW!MTB detection usually means that your computer is in big danger. This malware can correctly be identified as ransomware – virus which encrypts your files and asks you to pay for their decryption. Stopping it requires some unusual steps that must be done as soon as possible.
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Ransom:Win32/StopCrypt.PAW!MTB detection is a virus detection you can spectate in your computer. It often shows up after the preliminary activities on your PC – opening the untrustworthy e-mail messages, clicking the banner in the Internet or setting up the program from unreliable sources. From the second it appears, you have a short time to act before it starts its harmful activity. And be sure – it is better not to await these destructive things.

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

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

Ransom:Win32/StopCrypt.PAW!MTB Summary

Summarizingly, Ransom:Win32/StopCrypt.PAW!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;
  • Guard pages use detected – possible anti-debugging.;
  • Dynamic (imported) function loading detected;
  • Performs HTTP requests potentially not found in PCAP.;
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Xhosa;
  • Authenticode signature is invalid;
  • Attempts to modify proxy settings;
  • Encrypting the documents kept on the target’s drives — so the victim cannot use these files;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of anti-virus programs

Ransomware has actually been a headache for the last 4 years. It is hard to realize a more harmful virus for both individual users and corporations. The algorithms utilized in Ransom:Win32/StopCrypt.PAW!MTB (generally, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need a lot more time than our galaxy currently exists, and possibly will exist. However, that virus does not do all these terrible things immediately – it can take up to several hours to cipher all of your files. Therefore, seeing the Ransom:Win32/StopCrypt.PAW!MTB detection is a clear signal that you have to start the removal process.

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

Typical methods of Ransom:Win32/StopCrypt.PAW!MTB distribution are usual for all other ransomware examples. Those are one-day landing websites where users are offered to download the free app, so-called bait e-mails and hacktools. Bait emails are a relatively modern tactic in malware spreading – you receive the e-mail that mimics some normal notifications about shippings or bank service conditions modifications. Inside of the email, there is a corrupted 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.

Preventing it looks quite easy, but still demands a lot of awareness. Malware can hide in different spots, and it is far better to prevent it even before it invades your computer than to depend on an anti-malware program. Standard cybersecurity awareness is just an essential item in the modern world, even if your interaction with a PC remains on YouTube videos. That can save you a lot of money and time which you would certainly spend while looking for a fix guide.

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

File Info:

name: 45B39868745888B8190E.mlw
path: /opt/CAPEv2/storage/binaries/80cd0d21b194dfe51e804ae9cc8c310c9dad7f7a7c29158bfc1b06cb5598918d
crc32: B5F9BA0A
md5: 45b39868745888b8190e3ee7b5a83aae
sha1: 6685d5652d305798619838f6ea724ebc7ce7910b
sha256: 80cd0d21b194dfe51e804ae9cc8c310c9dad7f7a7c29158bfc1b06cb5598918d
sha512: 46fafcd4b83a66eebeb08151c35bb609784b55d2f0d5199fa531f594e529df77868ecb5ed4eee6a24db5f1e680e1228cecb8704f5e3cd3b3937b9ee758d1b79a
ssdeep: 3072:Mgocnb0LLkDwxYxYT+RRp4VuWgrX5gaHQsFapDnwN60sxkgaBCh+D6Qa9:MgoJLLgwS/Gu/X51HmVBigayQi
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T19564BE117AC0E872C4921D749964DAE15A3BF831DA60A247F7E8BB2F2E303E15776353
sha3_384: 221e3c04f354a647c00e28d0462108ffcbc66ddb260a99b221d8cdd34cb9f62d592dcbd17b110277cb4594574908edba
ep_bytes: e8cd5e0000e979feffff8bff558bec8b
timestamp: 2020-08-15 01:17:06

Version Info:

InternationalName: pomgveoci.iwe
Copyright: Copyrighz (C) 2021, fudkorta
Translations: 0x0127 0x010f

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

Elasticmalicious (high confidence)
K7AntiVirusTrojan ( 003e58dd1 )
K7GWTrojan ( 0058e13b1 )
CrowdStrikewin/malicious_confidence_100% (W)
ESET-NOD32a variant of Win32/Kryptik.HOGS
CynetMalicious (score: 100)
EmsisoftTrojan.GenericKD.48279666 (B)
SophosMal/Generic-R + Mal/Agent-AWV
MAXmalware (ai score=84)
RisingRansom.Stop!8.10810 (CLOUD)
SentinelOneStatic AI – Malicious PE

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

Ransom:Win32/StopCrypt.PAW!MTB malware is very hard to erase manually. It places its data in numerous places throughout the disk, and can restore itself from one of the parts. Moreover, countless modifications in the windows registry, networking settings and Group Policies are pretty hard to locate and return to the original. It is far better to utilize a specific app – exactly, an anti-malware app. GridinSoft Anti-Malware will fit the most ideal for virus elimination purposes.

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