What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Trojan:Win32/Encoder.B detection means that your PC is in big danger. This virus can correctly be named as ransomware – sort of malware which ciphers your files and forces you to pay for their decryption. Removing it requires some peculiar steps that must be taken as soon as possible.
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Trojan:Win32/Encoder.B detection is a malware detection you can spectate in your system. It often appears after the preliminary activities on your computer – opening the suspicious e-mail messages, clicking the banner in the Web or installing the program from untrustworthy sources. From the moment it appears, you have a short time to act until it starts its destructive action. And be sure – it is much better not to await these harmful things.

What is Trojan:Win32/Encoder.B virus?

Trojan:Win32/Encoder.B is ransomware-type malware. It looks for the files on your disk, encrypts it, and then asks you to pay the ransom for receiving the decryption key. Besides making your documents locked, this virus also does a lot of harm to your system. It alters the networking settings in order to avoid you from looking for the removal manuals or downloading the antivirus. In some cases, Trojan:Win32/Encoder.B can additionally block the setup of anti-malware programs.

Trojan:Win32/Encoder.B Summary

Summarizingly, Trojan:Win32/Encoder.B virus activities in the infected computer are next:

  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Dynamic (imported) function loading detected;
  • The binary contains an unknown PE section name indicative of packing;
  • Authenticode signature is invalid;
  • Installs itself for autorun at Windows startup;
  • Checks for the presence of known devices from debuggers and forensic tools;
  • Checks for the presence of known devices from debuggers and forensic tools;
  • Creates a copy of itself;
  • Harvests cookies for information gathering;
  • Encrypting the documents kept on the target’s disks — so the victim cannot open these files;
  • Blocking the launching of .exe files of anti-virus programs
  • Blocking the launching of installation files of anti-malware apps

Ransomware has actually been a horror story for the last 4 years. It is challenging to realize a more damaging virus for both individual users and organizations. The algorithms utilized in Trojan:Win32/Encoder.B (generally, 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 terrible things instantly – it can require up to a few hours to cipher all of your documents. Hence, seeing the Trojan:Win32/Encoder.B detection is a clear signal that you need to begin the clearing procedure.

Where did I get the Trojan:Win32/Encoder.B?

Routine tactics of Trojan:Win32/Encoder.B distribution are common for all other ransomware variants. Those are one-day landing web pages where users are offered to download the free program, so-called bait emails and hacktools. Bait e-mails are a quite new method in malware spreading – you receive the e-mail that imitates some normal notifications about shippings or bank service conditions changes. Within the email, there is a corrupted MS Office file, or a web link which leads to the exploit landing site.

Malicious email spam

Malicious email message. This one tricks you to open the phishing website.

Preventing it looks pretty easy, but still demands tons of focus. Malware can hide in different places, and it is much better to prevent it even before it goes into your computer than to rely on an anti-malware program. General cybersecurity knowledge is just an important item in the modern world, even if your interaction with a computer stays on YouTube videos. That may save you a great deal of time and money which you would certainly spend while seeking a solution.

Trojan:Win32/Encoder.B malware technical details

File Info:

name: 1777AB55EF1F335B58FE.mlw
path: /opt/CAPEv2/storage/binaries/006b3a5c8b206f0e6f9e58c1343563ebc45db6804608a5dbbbfbb5223cd3dde3
crc32: 3DBE7238
md5: 1777ab55ef1f335b58fe2d8e8e1fd476
sha1: 4948ab5c37701539b1b4a4a6214ed3c865adab29
sha256: 006b3a5c8b206f0e6f9e58c1343563ebc45db6804608a5dbbbfbb5223cd3dde3
sha512: 72113b6196aaf2cae421a6303a93047c74e9ce1581f734339756973f5bfdf3170ac8fcd57688ab2bfeaacb50d9f129ea155645fabff75dd305d2ec26fe5b5b7e
ssdeep: 12288:6pvb1E5BOt0cfWmqsqmVqereeoXX1HYQEBLBld77:6daCtzfW/sXV4eoViRx
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1DDE44B61B3E1C43AD5B2163D8C6BD2F86935BF212D14E9473AE43F0D7E39A823815297
sha3_384: 99537d9d466d9c19e645d22b0a4a5515eeb3eddf54389ee04c9a9c319abfcc47f639c12e89d6f2800602ceb2e8cf81df
ep_bytes: 558bec83c4f0b8c8de4600e8ec7ef9ff
timestamp: 1992-06-19 22:22:17

Version Info:

Translation: 0x0409 0x04e4

Trojan:Win32/Encoder.B also known as:

K7AntiVirusTrojan ( 0055e3ef1 )
K7GWTrojan ( 0055e3ef1 )
ESET-NOD32a variant of Win32/Filecoder.W
EmsisoftTrojan.Ransom.GenericKD.48967542 (B)
CynetMalicious (score: 99)
MAXmalware (ai score=81)
PandaGeneric Malware
RisingTrojan.Generic@AI.89 (RDML:LPGjKo3wXHUzPcGUQY/Fww)
AVGWin32:Delf-PAH [Trj]
AvastWin32:Delf-PAH [Trj]

How to remove Trojan:Win32/Encoder.B?

Trojan:Win32/Encoder.B malware is incredibly difficult to erase manually. It puts its data in several locations throughout the disk, and can recover itself from one of the parts. Moreover, countless modifications in the registry, networking setups and also Group Policies are quite hard to locate and return to the initial. It is much better to utilize a specific tool – exactly, an anti-malware program. GridinSoft Anti-Malware will fit the most ideal for malware removal goals.

Why GridinSoft Anti-Malware? It is pretty lightweight and has its databases updated almost every hour. Additionally, it does not have such bugs and exposures as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware suitable for removing 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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