What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Ransom:Win32/StopCrypt.PAH!MTB detection means that your PC is in big danger. This malware can correctly be identified as ransomware – sort of malware which encrypts your files and asks you to pay for their decryption. Stopping it requires some unusual steps that must be taken as soon as possible.
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Ransom:Win32/StopCrypt.PAH!MTB detection is a malware detection you can spectate in your system. It generally shows up after the provoking actions on your PC – opening the suspicious e-mail, clicking the advertisement in the Internet or setting up the program from dubious resources. From the second it shows up, you have a short time to act before it begins its malicious activity. And be sure – it is far better not to wait for these harmful effects.

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

Ransom:Win32/StopCrypt.PAH!MTB is ransomware-type malware. It looks for the documents on your disk drive, ciphers 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 setups in order to avoid you from reading the elimination guides or downloading the antivirus. In rare cases, Ransom:Win32/StopCrypt.PAH!MTB can also block the launching of anti-malware programs.

Ransom:Win32/StopCrypt.PAH!MTB Summary

In summary, Ransom:Win32/StopCrypt.PAH!MTB ransomware 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: Spanish (Colombia);
  • The binary contains an unknown PE section name indicative of packing;
  • The binary likely contains encrypted or compressed data.;
  • 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;
  • Encrypting the files kept on the victim’s drive — so the victim cannot use these documents;
  • Blocking the launching of .exe files of anti-malware programs
  • Blocking the launching of installation files of anti-virus apps

Ransomware has been a nightmare for the last 4 years. It is challenging to picture a more hazardous virus for both individuals and businesses. The algorithms utilized in Ransom:Win32/StopCrypt.PAH!MTB (usually, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have more time than our galaxy currently exists, and possibly will exist. However, that malware does not do all these bad things instantly – it may take up to several hours to cipher all of your files. Thus, seeing the Ransom:Win32/StopCrypt.PAH!MTB detection is a clear signal that you need to begin the elimination procedure.

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

Typical tactics of Ransom:Win32/StopCrypt.PAH!MTB spreading are common for all other ransomware examples. Those are one-day landing websites where users are offered to download and install the free software, so-called bait emails and hacktools. Bait e-mails are a relatively new strategy in malware spreading – you get the e-mail that imitates some regular notifications about deliveries or bank service conditions updates. Within the email, there is a corrupted MS Office file, or a 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 quite easy, but still needs tons of attention. Malware can hide in various places, and it is much better to prevent it even before it goes into your system than to rely upon an anti-malware program. Common cybersecurity knowledge is just an essential item in the modern-day world, even if your interaction with a PC stays on YouTube videos. That can keep you a great deal of money and time which you would spend while searching for a fixing guide.

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

File Info:

name: 8F339C98BCC14680C0CE.mlw
path: /opt/CAPEv2/storage/binaries/1574b1e507f25d7dcd3d53dffe3765a651145e4adf0e067f2fd6624337e76df5
crc32: 528A7FD0
md5: 8f339c98bcc14680c0ced5a6eb362ee1
sha1: 56053c554aaee201659963b6291498b09b561b47
sha256: 1574b1e507f25d7dcd3d53dffe3765a651145e4adf0e067f2fd6624337e76df5
sha512: f0f375ace22b2d7a3c1a8a4ca041eac907d2ad67eed60ba35357073731f13908ee4f39a620ebd6d13869d84fa2f04fc91576596d724c8bc4698e9c1def31ba1e
ssdeep: 6144:/YQwIKwowWN79O109agyJqoJbUCI2C9MrVcKM7uYQy:/oIHo9f94o0bhI2/rVI7t
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1E0649E10BBA0C035F5B722F446B5936CB93E3EA1973494CB62D52AEE56346E1EC31317
sha3_384: f827452e64efa3e38480e4131fa0adfbe46437043d2b4b7fc6484a054913af91842aa6f35479dd73e77c623877d7181b
ep_bytes: 8bff558bece826cf0000e8110000005d
timestamp: 2020-09-20 18:22:59

Version Info:

0: [No Data]

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

Elasticmalicious (high confidence)
CrowdStrikewin/malicious_confidence_100% (W)
K7GWTrojan ( 0058d0241 )
K7AntiVirusTrojan ( 0058d0241 )
ESET-NOD32a variant of Win32/Kryptik.HNZU
AvastWin32:CrypterX-gen [Trj]
EmsisoftTrojan.Crypt (A)
SophosMal/Generic-S + Troj/Krypt-FV
CynetMalicious (score: 100)
MAXmalware (ai score=86)
RisingTrojan.Kryptik!8.8 (TFE:dGZlOgUmPm4b0YeDZA)
SentinelOneStatic AI – Malicious PE
AVGWin32:CrypterX-gen [Trj]

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

Ransom:Win32/StopCrypt.PAH!MTB malware is extremely hard to delete manually. It places its data in a variety of locations throughout the disk, and can recover itself from one of the parts. Furthermore, countless changes in the registry, networking settings and also Group Policies are fairly hard to locate and return to the initial. It is better to utilize a specific tool – exactly, an anti-malware tool. GridinSoft Anti-Malware will definitely fit the best for virus elimination reasons.

Why GridinSoft Anti-Malware? It is pretty light-weight and has its databases updated just about every hour. Moreover, it does not have such bugs and vulnerabilities as Microsoft Defender does. The combination of these facts makes GridinSoft Anti-Malware ideal for getting rid of malware of any form.

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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