What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Win32/Filecoder.Hydra.A detection usually means that your system is in big danger. This computer virus can correctly be identified as ransomware – type of malware which encrypts your files and asks you to pay for their decryption. Removing it requires some specific steps that must be taken as soon as possible.
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Win32/Filecoder.Hydra.A detection is a malware detection you can spectate in your computer. It usually appears after the provoking actions on your PC – opening the untrustworthy e-mail messages, clicking the banner in the Internet or setting up the program from suspicious sources. From the second it shows up, you have a short time to do something about it until it begins its destructive action. And be sure – it is better not to await these malicious actions.

What is Win32/Filecoder.Hydra.A virus?

Win32/Filecoder.Hydra.A is ransomware-type malware. It looks for the documents on your disk drives, encrypts it, and then asks you to pay the ransom for getting the decryption key. Besides making your documents locked, this malware also does a lot of harm to your system. It modifies the networking setups in order to stop you from checking out the removal manuals or downloading the antivirus. In some cases, Win32/Filecoder.Hydra.A can also block the setup of anti-malware programs.

Win32/Filecoder.Hydra.A Summary

Summarizingly, Win32/Filecoder.Hydra.A virus activities in the infected computer are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Dynamic (imported) function loading detected;
  • Starts servers listening on;
  • Manipulates data from or to the Recycle Bin;
  • 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;
  • Attempts to interact with an Alternate Data Stream (ADS);
  • Encrypting the documents located on the victim’s disk drive — so the victim cannot open these documents;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of anti-virus apps

Ransomware has been a horror story for the last 4 years. It is challenging to realize a more dangerous virus for both individuals and companies. The algorithms utilized in Win32/Filecoder.Hydra.A (usually, 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 actually exists, and possibly will exist. But that malware does not do all these horrible things immediately – it may require up to several hours to cipher all of your documents. Therefore, seeing the Win32/Filecoder.Hydra.A detection is a clear signal that you need to begin the removal procedure.

Where did I get the Win32/Filecoder.Hydra.A?

Common methods of Win32/Filecoder.Hydra.A distribution are common for all other ransomware variants. Those are one-day landing sites where users are offered to download and install the free software, so-called bait e-mails and hacktools. Bait emails are a pretty modern method in malware distribution – you get the email that imitates some standard notifications about deliveries or bank service conditions changes. Inside of the e-mail, there is a malicious MS Office file, or a web link which leads to the exploit landing page.

Malicious email spam

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

Avoiding it looks quite simple, however, still requires a lot of focus. Malware can hide in various spots, and it is better to stop it even before it invades your system than to rely on an anti-malware program. Simple cybersecurity awareness is just an important thing in the modern-day world, even if your relationship with a computer remains on YouTube videos. That may save you a great deal of money and time which you would spend while trying to find a fix guide.

Win32/Filecoder.Hydra.A malware technical details

File Info:

name: 4D853C855E3DC9FA5C66.mlw
path: /opt/CAPEv2/storage/binaries/665f879a3530069740aebb8db06056f6a70bd314a0542fa72a0bf3e4ce020766
crc32: 385EB562
md5: 4d853c855e3dc9fa5c66f42c9b5bb74b
sha1: 417bdd0255b1fd4a557f294ec0427c534fc310ca
sha256: 665f879a3530069740aebb8db06056f6a70bd314a0542fa72a0bf3e4ce020766
sha512: 34d07636d9ec3b678044c046aa4565cdf88fcde523cf74e8fa90845c7203239f14e419f405b19621534573751cf79a62a0bd5a59b4dd6bc7bf29f526933e9b14
ssdeep: 24576:C+p2JBlC+zvS9CH+lG1QGogCjsC4kMNpeuRx6yRA1vwaMNKsaRQ/b4Olox97:L0m+zvS9CH+lG1QG8BK0KaIaRCS97
type: PE32 executable (console) Intel 80386, for MS Windows
tlsh: T1D325CF217E41C0B6DA92817218B9EB3A197DB9310B3189DBA3D44B3D6F305C17B3779A
sha3_384: 38432165323b73ae02187c186f55bedcd45ace5bc62da98f739bb38fe95b7e9e1a4490c96054dcd380ac6f58f173deec
ep_bytes: e8c0090000e987feffffff25d0234c00
timestamp: 2021-11-02 22:30:08

Version Info:

0: [No Data]

Win32/Filecoder.Hydra.A also known as:

Elasticmalicious (high confidence)
K7GWTrojan ( 0058d54c1 )
ESET-NOD32a variant of Win32/Filecoder.Hydra.A
CynetMalicious (score: 100)
AvastWin32:MalwareX-gen [Trj]
EmsisoftGen:Variant.Ransom.Hydra.1 (B)
MAXmalware (ai score=80)
RisingRansom.Dmr!8.11602 (CLOUD)
AVGWin32:MalwareX-gen [Trj]

How to remove Win32/Filecoder.Hydra.A?

Win32/Filecoder.Hydra.A malware is very hard to erase manually. It places its files in several locations throughout the disk, and can recover itself from one of the elements. In addition, a lot of changes in the registry, networking setups and Group Policies are fairly hard to find and revert to the initial. It is far better to utilize a special program – exactly, an anti-malware program. GridinSoft Anti-Malware will definitely fit the best for virus elimination purposes.

Why GridinSoft Anti-Malware? It is really light-weight and has its detection databases updated almost every hour. Furthermore, it does not have such problems and exposures as Microsoft Defender does. The combination of these facts makes GridinSoft Anti-Malware ideal for taking out 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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