What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Ransom:Win32/Filecoder.GF!MTB detection means that your PC 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 unusual steps that must be taken as soon as possible.
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Ransom:Win32/Filecoder.GF!MTB detection is a virus detection you can spectate in your computer. It generally appears after the preliminary procedures on your computer – opening the dubious e-mail messages, clicking the advertisement in the Internet or installing the program from suspicious resources. From the moment it shows up, you have a short time to do something about it until it starts its malicious activity. And be sure – it is better not to await these destructive things.

What is Ransom:Win32/Filecoder.GF!MTB virus?

Ransom:Win32/Filecoder.GF!MTB is ransomware-type malware. It looks for the files on your disk drive, ciphers it, and after that asks you to pay the ransom for getting the decryption key. Besides making your files locked, this virus also does a lot of damage to your system. It alters the networking settings in order to prevent you from checking out the elimination articles or downloading the anti-malware program. In rare cases, Ransom:Win32/Filecoder.GF!MTB can even stop the launching of anti-malware programs.

Ransom:Win32/Filecoder.GF!MTB Summary

In summary, Ransom:Win32/Filecoder.GF!MTB ransomware activities 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;
  • Checks adapter addresses which can be used to detect virtual network interfaces;
  • Dynamic (imported) function loading detected;
  • Performs HTTP requests potentially not found in PCAP.;
  • HTTPS urls from behavior.;
  • A process created a hidden window;
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Korean;
  • 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;
  • Behavioural detection: Injection (inter-process);
  • Behavioural detection: Transacted Hollowing;
  • Created a process from a suspicious location;
  • Collects and encrypts information about the computer likely to send to C2 server;
  • Installs itself for autorun at Windows startup;
  • STOP ransomware registry artifacts detected;
  • CAPE detected the STOP malware family;
  • Attempts to modify proxy settings;
  • Creates a copy of itself;
  • STOP ransomware command line behavior detected;
  • Uses suspicious command line tools or Windows utilities;
  • Encrypting the files kept on the victim’s disk drives — so the victim cannot check these documents;
  • Blocking the launching of .exe files of anti-virus programs
  • Blocking the launching of installation files of anti-virus apps

Ransomware has actually been a major problem for the last 4 years. It is challenging to picture a more dangerous malware for both individual users and businesses. The algorithms utilized in Ransom:Win32/Filecoder.GF!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 currently exists, and possibly will exist. But that virus does not do all these horrible things without delay – it may require up to a few hours to cipher all of your documents. Thus, seeing the Ransom:Win32/Filecoder.GF!MTB detection is a clear signal that you have to start the elimination process.

Where did I get the Ransom:Win32/Filecoder.GF!MTB?

Common methods of Ransom:Win32/Filecoder.GF!MTB spreading are usual for all other ransomware variants. Those are one-day landing sites where users are offered to download the free app, so-called bait emails and hacktools. Bait emails are a pretty new tactic in malware distribution – you get the email that imitates some normal notifications about shipments or bank service conditions changes. Within the e-mail, there is a malicious MS Office file, or a web 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 quite uncomplicated, but still requires tons of focus. Malware can hide in various places, and it is far better to stop it even before it goes into your PC than to trust in an anti-malware program. Essential cybersecurity knowledge is just an important item in the modern world, even if your relationship with a PC remains on YouTube videos. That may keep you a lot of money and time which you would certainly spend while seeking a solution.

Ransom:Win32/Filecoder.GF!MTB malware technical details

File Info:

name: 1DA85CC675B9DBA196CE.mlw
path: /opt/CAPEv2/storage/binaries/52e1ddc9a646f3a31f2a5a10d0c69ceade6c0a6cd90d05fbabcace0b9f49c1a6
crc32: 57B7BC3C
md5: 1da85cc675b9dba196cee0e43f38931a
sha1: 822de98d54a3211a78b1ad693a719b93aa0c7648
sha256: 52e1ddc9a646f3a31f2a5a10d0c69ceade6c0a6cd90d05fbabcace0b9f49c1a6
sha512: e5641acbc10f2d7f00f30b45c96d55afaa5948c16ca14b06685a2c1da8ec948b12fbc3a2af2b0bfae3ddecace2a47601811cf8a49e5eeda3feb923ec2015b96c
ssdeep: 24576:l54Ny8uX/b3KudlGtGSzHBUhtprnCLqqCIK5O76qx:l5r/b6ol0lzhU1C2ZIK5O+qx
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1C9050200BAA0C434F8F712F449B6929CB53E7AE1976950CF13D566EA63389E1FC3125B
sha3_384: 74e7ccc55c1b9bf5efc1883820f95baa93043dc18f051df083841be5e50805383fe5283eec5bf573adc811c7e64af9fe
ep_bytes: 8bff558bece8468e0000e8110000005d
timestamp: 2021-06-03 13:36:22

Version Info:

Translations: 0x0353 0x036f

Ransom:Win32/Filecoder.GF!MTB also known as:

CrowdStrikewin/malicious_confidence_100% (W)
Elasticmalicious (high confidence)
SophosML/PE-A + Troj/Krypt-FV
SentinelOneStatic AI – Malicious PE
CynetMalicious (score: 100)
RisingTrojan.Generic@AI.100 (RDML:OpfiaBdvNwNcvNQVpSnXsw)

How to remove Ransom:Win32/Filecoder.GF!MTB?

Ransom:Win32/Filecoder.GF!MTB malware is incredibly difficult to eliminate by hand. It puts its files in a variety of places throughout the disk, and can recover itself from one of the parts. In addition, countless changes in the registry, networking configurations and Group Policies are fairly hard to discover and return to the original. It is better to use a specific app – exactly, an anti-malware tool. GridinSoft Anti-Malware will definitely fit the best for virus removal purposes.

Why GridinSoft Anti-Malware? It is very light-weight and has its detection databases updated nearly every hour. Furthermore, it does not have such problems and vulnerabilities as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware suitable for getting rid of 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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