Ransom:Win32/HiddenTear

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Ransom:Win32/HiddenTear infection?

In this article you will discover regarding the definition of Ransom:Win32/HiddenTear and also its unfavorable influence on your computer. Such ransomware are a kind of malware that is specified by on the internet fraudulences to require paying the ransom by a victim.

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Most of the cases, Ransom:Win32/HiddenTear virus will certainly advise its victims to initiate funds transfer for the objective of reducing the effects of the amendments that the Trojan infection has introduced to the sufferer’s gadget.

Ransom:Win32/HiddenTear Summary

These alterations can be as complies with:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • Expresses interest in specific running processes;
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • A process created a hidden window;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • Checks for the presence of known windows from debuggers and forensic tools;
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Checks for the presence of known devices from debuggers and forensic tools;
  • Detects VirtualBox through the presence of a device;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the files found on the victim’s hard disk drive — so the sufferer can no more utilize the data;
  • Preventing routine access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Ransom:Win32/HiddenTear

The most normal channels where Ransom:Win32/HiddenTear Ransomware are infused are:

  • By ways of phishing e-mails;
  • As a repercussion of individual ending up on a resource that organizes a malicious software program;

As quickly as the Trojan is efficiently infused, it will either cipher the data on the victim’s PC or avoid the device from operating in a correct fashion – while additionally placing a ransom money note that mentions the demand for the victims to effect the settlement for the function of decrypting the papers or bring back the data system back to the initial condition. In many instances, the ransom note will show up when the customer restarts the COMPUTER after the system has actually already been damaged.

Ransom:Win32/HiddenTear circulation networks.

In different corners of the world, Ransom:Win32/HiddenTear grows by jumps and bounds. However, the ransom money notes as well as methods of obtaining the ransom money amount might differ depending upon specific neighborhood (local) setups. The ransom notes and also methods of extorting the ransom quantity may differ depending on certain neighborhood (local) settings.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software application.

    In particular areas, the Trojans often wrongfully report having detected some unlicensed applications allowed on the target’s tool. The alert then requires the individual to pay the ransom.

    Faulty statements regarding illegal web content.

    In nations where software piracy is much less popular, this technique is not as efficient for the cyber frauds. Conversely, the Ransom:Win32/HiddenTear popup alert may falsely declare to be deriving from a police organization and will report having situated kid porn or other unlawful data on the tool.

    Ransom:Win32/HiddenTear popup alert may incorrectly claim to be deriving from a regulation enforcement institution and will certainly report having located child pornography or other illegal data on the tool. The alert will similarly contain a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: 00A39656
md5: 80143152971ee77d14bb77c8d10346ec
name: upload_file
sha1: 6c6e9ebe1e11714bd4c3584fc5b732ccfb782a05
sha256: 7860832a25f403c43865c00bd072fa58b2da66bc81152eec30582ad0a72932e6
sha512: 133f5a81542f5475597b5d2dea84af932ff49df5286a27dc9ce0dfdaa200d52f6cec8fd9f44c07e86e2585195c278874953e4dcd15a5b1a7845f704125e0c36b
ssdeep: 12288:CeXzSAp2noO6CvOJHLc3vYndhqXtMLPCu4QRxEI:CejCnoFOqHLc2dhGMLPCu4QRxL
type: MS-DOS executable, MZ for MS-DOS

Version Info:

LegalCopyright: Copyright (C) 2018
InternalName: TODO:
FileVersion: 1,0,0,0
CompanyName: TODO:
ProductName: TODO:
ProductVersion: 1.0.0.0
FileDescription: TODO:
Translation: 0x0000 0x04e4

Ransom:Win32/HiddenTear also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware2
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.43938747
McAfee Generic-FAWW!80143152971E
Cylance Unsafe
AegisLab Trojan.Win32.Generic.4!c
K7AntiVirus Trojan ( 0052438a1 )
BitDefender Trojan.GenericKD.43938747
K7GW Trojan ( 0052438a1 )
Cybereason malicious.2971ee
Arcabit Trojan.Generic.D29E73BB
Invincea Mal/Generic-R + Mal/EncPk-ANL
Symantec ML.Attribute.HighConfidence
APEX Malicious
Paloalto generic.ml
Kaspersky HEUR:Trojan.Win32.Generic
Alibaba Ransom:Win32/HiddenTear.c9e6893b
Avast Win32:Trojan-gen
Ad-Aware Trojan.GenericKD.43938747
Emsisoft Trojan.GenericKD.43938747 (B)
F-Secure Trojan.TR/Crypt.XPACK.Gen
DrWeb Trojan.Encoder.32725
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HiddenTear.R002C0DIU20
McAfee-GW-Edition BehavesLike.Win32.Yahlover.gc
FireEye Generic.mg.80143152971ee77d
Sophos Mal/EncPk-ANL
SentinelOne DFI – Malicious PE
Webroot W32.Malware.Gen
Avira TR/Crypt.XPACK.Gen
eGambit Unsafe.AI_Score_70%
MAX malware (ai score=82)
Microsoft Ransom:Win32/HiddenTear.gen
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.GenericKD.43938747
Cynet Malicious (score: 100)
Acronis suspicious
VBA32 BScope.TrojanPSW.Banker
ALYac Trojan.GenericKD.43938747
Malwarebytes Ransom.HiddenTear
ESET-NOD32 a variant of Win32/Packed.Obsidium.AS
TrendMicro-HouseCall Ransom_HiddenTear.R002C0DIU20
Rising [email protected] (RDML:qizetFRirkk2dVctJx8/Yg)
Ikarus Trojan.Win32.Obsidium
Fortinet W32/Generic!tr
BitDefenderTheta Gen:NN.ZexaF.34282.Aq3@aWR3vpf
AVG Win32:Trojan-gen
CrowdStrike win/malicious_confidence_90% (W)
Qihoo-360 Generic/HEUR/QVM19.1.465B.Malware.Gen

How to remove Ransom:Win32/HiddenTear ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Ransom:Win32/HiddenTear files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

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If the guide doesn’t help you to remove Ransom:Win32/HiddenTear you can always ask me in the comments for getting help.

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: https://gridinsoft.com/comparison

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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