Ransom:MSIL/HiddenTear.TH!MTB

Written by Robert Bailey

What is Ransom:MSIL/HiddenTear.TH!MTB infection?

In this post you will discover concerning the definition of Ransom:MSIL/HiddenTear.TH!MTB and its unfavorable influence on your computer. Such ransomware are a form of malware that is clarified by on the internet frauds to require paying the ransom money by a victim.

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Most of the cases, Ransom:MSIL/HiddenTear.TH!MTB ransomware will advise its targets to start funds transfer for the objective of counteracting the amendments that the Trojan infection has introduced to the target’s tool.

Ransom:MSIL/HiddenTear.TH!MTB Summary

These modifications can be as complies with:

  • 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.
  • A process attempted to delay the analysis task.;
  • 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.
  • Deletes its original binary from disk;
  • Installs itself for autorun at Windows startup.

    There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Exhibits possible ransomware file modification behavior;
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • 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.
  • Likely virus infection of existing system binary;
  • Creates a copy of itself;
  • Ciphering the records found on the sufferer’s hard drive — so the sufferer can no more make use of the information;
  • Preventing regular accessibility to the victim’s workstation;

Ransom:MSIL/HiddenTear.TH!MTB

One of the most common channels where Ransom:MSIL/HiddenTear.TH!MTB Ransomware Trojans are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a repercussion of customer ending up on a source that organizes a harmful software;

As soon as the Trojan is effectively infused, it will either cipher the data on the target’s PC or protect against the device from functioning in a proper manner – while also positioning a ransom note that discusses the need for the targets to effect the settlement for the objective of decrypting the papers or recovering the data system back to the preliminary problem. In a lot of instances, the ransom note will certainly turn up when the customer restarts the PC after the system has already been harmed.

Ransom:MSIL/HiddenTear.TH!MTB distribution networks.

In different edges of the globe, Ransom:MSIL/HiddenTear.TH!MTB grows by leaps and bounds. However, the ransom notes as well as techniques of extorting the ransom money amount may vary depending upon particular regional (regional) setups. The ransom money notes and tricks of obtaining the ransom money quantity might differ depending on specific regional (regional) setups.

Ransomware injection

For example:

    Faulty informs about unlicensed software program.

    In particular areas, the Trojans typically wrongfully report having detected some unlicensed applications allowed on the victim’s gadget. The alert after that requires the customer to pay the ransom money.

    Faulty statements concerning illegal web content.

    In countries where software application piracy is less preferred, this technique is not as efficient for the cyber frauds. Conversely, the Ransom:MSIL/HiddenTear.TH!MTB popup alert may falsely claim to be originating from a law enforcement organization and also will certainly report having situated kid pornography or various other illegal information on the device.

    Ransom:MSIL/HiddenTear.TH!MTB popup alert may falsely claim to be acquiring from a law enforcement organization as well as will report having situated kid pornography or other prohibited information on the device. The alert will similarly contain a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 801187F9
md5: 38ac9be95966ac112b27307b7f9eb956
name: 38AC9BE95966AC112B27307B7F9EB956.mlw
sha1: a97a8ba02cf46eb8e7bba1c050980097121c477f
sha256: f919c22eca04627332b5857baea5694027845c7858c8d93f3cec4d41657e8fa7
sha512: a8fef6e1af120f97b925763e9f31e9f2847aff806c913b2e425c51c227568ff3bc3bb804f92b30a246aea6398a1e6aa86a234a959e9661d3b8b79e3a6604e5c9
ssdeep: 1536:AScse4VgQAIrclHM8Bx4Cyyyb1WtSp0kVoR4Q9i0iJOVp:AScGilHM8BxhtSpXD0ZVp
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright:
Assembly Version: 0.0.0.0
InternalName: ttyskfj2.exe
FileVersion: 0.0.0.0
ProductVersion: 0.0.0.0
FileDescription:
OriginalFilename: ttyskfj2.exe

Ransom:MSIL/HiddenTear.TH!MTB also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Backdoor.Erica.2
FireEye Generic.mg.38ac9be95966ac11
McAfee Artemis!38AC9BE95966
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
AegisLab Trojan.Win32.Generic.4!c
Sangfor Malware
K7AntiVirus Trojan ( 0052c0671 )
BitDefender Gen:Variant.Backdoor.Erica.2
K7GW Trojan ( 0052c0671 )
Cybereason malicious.95966a
BitDefenderTheta Gen:NN.ZemsilF.34804.fq0@aWap13nG
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast MSIL:Injector-GY [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
NANO-Antivirus Trojan.Win32.Kazy.ekxdqx
Tencent Win32.Trojan.Generic.Llro
Ad-Aware Gen:Variant.Backdoor.Erica.2
Sophos Mal/Generic-S
Comodo Malware@#1wcwuzcis7eer
F-Secure Trojan.TR/Dropper.Gen
DrWeb Trojan.MulDrop7.21264
Zillya Trojan.Injector.Win32.466788
McAfee-GW-Edition BehavesLike.Win32.Trojan.mm
Emsisoft Gen:Variant.Backdoor.Erica.2 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Generic.aroeh
Avira TR/Dropper.Gen
Antiy-AVL Trojan/Win32.AGeneric
Microsoft Ransom:MSIL/HiddenTear.TH!MTB
Arcabit Trojan.Backdoor.Erica.2
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Variant.Backdoor.Erica.2
Cynet Malicious (score: 100)
ALYac Gen:Variant.Backdoor.Erica.2
MAX malware (ai score=82)
Panda Trj/CI.A
ESET-NOD32 a variant of MSIL/Injector.DKR
Ikarus Virus.ILCrypt
eGambit Unsafe.AI_Score_100%
Fortinet MSIL/Injector.PE!tr
AVG MSIL:Injector-GY [Trj]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 Win32/Trojan.d5d

How to remove Ransom:MSIL/HiddenTear.TH!MTB virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

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:MSIL/HiddenTear.TH!MTB 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:MSIL/HiddenTear.TH!MTB 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/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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