What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the TrojanRansom.HiddenTear detection name usually means that your system is in big danger. This virus can correctly be named as ransomware – type of malware which encrypts your files and forces you to pay for their decryption. Removing it requires some unusual steps that must be taken as soon as possible.
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TrojanRansom.HiddenTear detection is a virus detection you can spectate in your computer. It often shows up after the preliminary activities on your PC – opening the untrustworthy email, clicking the banner in the Web or setting up the program from unreliable sources. From the moment it appears, you have a short time to do something about it until it starts its malicious activity. And be sure – it is much better not to wait for these malicious effects.

What is TrojanRansom.HiddenTear virus?

TrojanRansom.HiddenTear is ransomware-type malware. It searches for the files on your computer, encrypts it, and then asks you to pay the ransom for getting the decryption key. Besides making your documents locked, this virus additionally does a lot of damage to your system. It alters the networking setups in order to stop you from checking out the elimination articles or downloading the anti-malware program. In some cases, TrojanRansom.HiddenTear can also prevent the launching of anti-malware programs.

TrojanRansom.HiddenTear Summary

Summarizingly, TrojanRansom.HiddenTear malware activities in the infected system are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Dynamic (imported) function loading detected;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Possible date expiration check, exits too soon after checking local time;
  • Enumerates the modules from a process (may be used to locate base addresses in process injection);
  • CAPE extracted potentially suspicious content;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • CAPE detected the RedLine malware family;
  • Anomalous binary characteristics;
  • Encrypting the documents located on the target’s disks — so the victim cannot check these files;
  • Blocking the launching of .exe files of anti-virus apps
  • Blocking the launching of installation files of security tools

Ransomware has actually been a headache for the last 4 years. It is hard to imagine a more damaging virus for both individuals and corporations. The algorithms used in TrojanRansom.HiddenTear (usually, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have a lot more time than our galaxy actually exists, and possibly will exist. However, that virus does not do all these terrible things immediately – it may require up to a few hours to cipher all of your documents. Hence, seeing the TrojanRansom.HiddenTear detection is a clear signal that you should begin the elimination procedure.

Where did I get the TrojanRansom.HiddenTear?

Typical ways of TrojanRansom.HiddenTear spreading are standard for all other ransomware examples. Those are one-day landing web pages where victims are offered to download and install the free software, so-called bait e-mails and hacktools. Bait e-mails are a relatively modern strategy in malware distribution – you get the e-mail that mimics some regular notifications about deliveries or bank service conditions changes. Inside of the email, there is a malicious MS Office file, or a 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 quite easy, however, still requires a lot of awareness. Malware can hide in different spots, and it is far better to prevent it even before it gets into your system than to trust in an anti-malware program. General cybersecurity knowledge is just an essential item in the modern-day world, even if your interaction with a PC remains on YouTube videos. That may save you a lot of time and money which you would spend while searching for a fix guide.

TrojanRansom.HiddenTear malware technical details

File Info:

name: 77580B6CC849438BBF90.mlw
path: /opt/CAPEv2/storage/binaries/7766e820597240c78253c0129566ec7b75d1fdb0727325b991e944459f7b5734
crc32: B62A6187
md5: 77580b6cc849438bbf90653e0e125a14
sha1: 51269ee18392c4bb7469435b4973f5f947852082
sha256: 7766e820597240c78253c0129566ec7b75d1fdb0727325b991e944459f7b5734
sha512: 53880b2da9528e133c19fb689515c8ba6c0ecf2c026039725d21bfc594637f05fa71836e3a5e77d2c2eae3ad833fc96b129d4d7753c41f665167fb3699ac8bcd
ssdeep: 3072:aDKW1LgppLRHMY0TBfJvjcTp5Xk0RS6LAopzPJGwnFhUE6x5hog:aDKW1Lgbdl0TBBvjc/k0RmWKThD
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1DF24CF2131C0C2B3D4B6113485D6CB769A7A3071477A95D7B7DC1BBA6E213E1A33A2CE
sha3_384: 13196ec23ee63933716c372602299822127d74df08851175d8e2cfdbf5e2ee533e7db326a4eba4db2ed587c530c33ad2
ep_bytes: e8e15c0000e9a4feffff8bff558bec83
timestamp: 2012-07-13 22:47:16

Version Info:

Translation: 0x0000 0x04b0
CompanyName: HP Inc.
FileDescription: -__----_-
InternalName: -__----_-.exe
LegalCopyright: Copyright © HP Inc. 2020
OriginalFilename: -__----_-.exe
ProductName: -__----_-
Assembly Version:

TrojanRansom.HiddenTear also known as:

Elasticmalicious (high confidence)
CynetMalicious (score: 100)
K7AntiVirusTrojan ( 0050ac851 )
K7GWTrojan ( 0050ac851 )
ESET-NOD32a variant of MSIL/Filecoder.FU
SophosGeneric ML PUA (PUA)
EmsisoftTrojan.GenericKD.48112537 (B)
MAXmalware (ai score=85)
RisingTrojan.Filecoder!8.68 (CLOUD)
SentinelOneStatic AI – Malicious PE
CrowdStrikewin/malicious_confidence_70% (W)

How to remove TrojanRansom.HiddenTear?

TrojanRansom.HiddenTear malware is incredibly hard to eliminate by hand. It places its data in a variety of locations throughout the disk, and can recover itself from one of the elements. In addition, a range of alterations in the windows registry, networking settings and also Group Policies are really hard to discover and change to the initial. It is far better to utilize a specific tool – exactly, an anti-malware program. GridinSoft Anti-Malware will definitely fit the best for malware elimination objectives.

Why GridinSoft Anti-Malware? It is very light-weight and has its databases updated nearly every hour. Additionally, it does not have such bugs and vulnerabilities as Microsoft Defender does. The combination of these facts makes GridinSoft Anti-Malware suitable for eliminating 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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