What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Ransom:Win32/MedusaLocker.B!MTB detection means that your PC is in big danger. This computer virus can correctly be named as ransomware – type of malware which encrypts your files and asks you to pay for their decryption. Stopping it requires some peculiar steps that must be taken as soon as possible.
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Ransom:Win32/MedusaLocker.B!MTB detection is a virus detection you can spectate in your system. It generally shows up after the provoking activities on your PC – opening the untrustworthy e-mail messages, clicking the advertisement in the Internet or mounting the program from suspicious sources. From the moment it appears, you have a short time to act before it starts its malicious activity. And be sure – it is much better not to await these harmful actions.

What is Ransom:Win32/MedusaLocker.B!MTB virus?

Ransom:Win32/MedusaLocker.B!MTB is ransomware-type malware. It looks for the files on your disk, ciphers it, and after that asks you to pay the ransom for getting the decryption key. Besides making your documents inaccessible, this virus additionally does a ton of damage to your system. It alters the networking setups in order to avoid you from looking for the elimination guides or downloading the antivirus. In some cases, Ransom:Win32/MedusaLocker.B!MTB can additionally block the launching of anti-malware programs.

Ransom:Win32/MedusaLocker.B!MTB Summary

In summary, Ransom:Win32/MedusaLocker.B!MTB virus actions in the infected computer are next:

  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • CAPE extracted potentially suspicious content;
  • The binary contains an unknown PE section name indicative of packing;
  • Creates an autorun.inf file;
  • Authenticode signature is invalid;
  • Uses Windows utilities for basic functionality;
  • Behavioural detection: Transacted Hollowing;
  • CAPE detected the MedusaLocker malware family;
  • Creates a copy of itself;
  • Attempts to disable UAC;
  • Attempts to masquerade or mimic a legitimate process or file name;
  • Attempts to modify UAC prompt behavior;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the files kept on the target’s drive — 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 apps

Ransomware has actually been a nightmare for the last 4 years. It is hard to imagine a more hazardous malware for both individuals and organizations. The algorithms used in Ransom:Win32/MedusaLocker.B!MTB (generally, 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 actually exists, and possibly will exist. However, that virus does not do all these horrible things immediately – it can require up to several hours to cipher all of your files. Thus, seeing the Ransom:Win32/MedusaLocker.B!MTB detection is a clear signal that you need to start the clearing procedure.

Where did I get the Ransom:Win32/MedusaLocker.B!MTB?

Routine methods of Ransom:Win32/MedusaLocker.B!MTB spreading are usual for all other ransomware variants. Those are one-day landing sites where users are offered to download and install the free app, so-called bait e-mails and hacktools. Bait emails are a pretty new method in malware spreading – you get the email that simulates some normal notifications about shipments or bank service conditions changes. Inside of the e-mail, there is an infected 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.

Preventing it looks pretty uncomplicated, however, still demands tons of awareness. Malware can hide in different places, and it is much better to prevent it even before it invades your computer than to rely upon an anti-malware program. Common cybersecurity knowledge is just an essential thing in the modern-day world, even if your relationship with a PC remains on YouTube videos. That may save you a lot of money and time which you would spend while seeking a fixing guide.

Ransom:Win32/MedusaLocker.B!MTB malware technical details

File Info:

name: 792C63E062E97BDBA54F.mlw
path: /opt/CAPEv2/storage/binaries/5e0587e61d94a40091480a2f5f78621362265b8702b3558a0db536693159865f
crc32: 99931A77
md5: 792c63e062e97bdba54ffb95636b38d9
sha1: ba3e10ce06ea67224ae577eab44f17d16e08e22b
sha256: 5e0587e61d94a40091480a2f5f78621362265b8702b3558a0db536693159865f
sha512: 1f2378036c4031f05248b56a032063093daf02910bde5ac4ef2d546bc5fdaf4f5cb465a8a8c3286410642275ae7d45803dd1d53d533f770e26037072e2a03735
ssdeep: 24576:mVUtCZxVgDxcIKHcN2xcdbp+OJulrrXpobWMNhG/VO3Q0hN9jfWKXN:mmt0/6xKHmdYflrrXpovn3Q0hN9D
type: PE32 executable (console) Intel 80386, for MS Windows
tlsh: T1E8C53911BB518129FEF301F78EFD649D142DBAD00B9894C7A18C56EE866ABE13D32353
sha3_384: 37102341de8aa0e03f12ff67c5c08f06554eeab24922c819947ecfdd2eba133aa3aa921cbac1d76c4439b5a96d3b826f
ep_bytes: e9d1ca0c00e90cc01000e9d70a0400e9
timestamp: 2019-11-18 18:09:18

Version Info:

0: [No Data]

Ransom:Win32/MedusaLocker.B!MTB also known as:

Elasticmalicious (high confidence)
K7AntiVirusTrojan ( 0055a9531 )
K7GWTrojan ( 0055a9531 )
ESET-NOD32a variant of Win32/Filecoder.MedusaLocker.C
EmsisoftGeneric.Ransom.MedusaLocker.3B192263 (B)
MAXmalware (ai score=100)
CynetMalicious (score: 100)
RisingRansom.MedusaLocker!1.BE63 (CLASSIC)
CrowdStrikewin/malicious_confidence_100% (W)

How to remove Ransom:Win32/MedusaLocker.B!MTB?

Ransom:Win32/MedusaLocker.B!MTB malware is incredibly difficult to erase by hand. It stores its files in several places throughout the disk, and can get back itself from one of the elements. Moreover, a range of modifications in the windows registry, networking setups and also Group Policies are really hard to discover and return to the original. It is far better to make use of a specific tool – exactly, an anti-malware tool. GridinSoft Anti-Malware will fit the most ideal for virus removal goals.

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