Ransom:Win32/Tescrypt.Q

Written by Robert Bailey

What is Ransom:Win32/Tescrypt.Q infection?

In this article you will certainly discover regarding the meaning of Ransom:Win32/Tescrypt.Q and also its negative impact on your computer. Such ransomware are a kind of malware that is specified by on the internet frauds to demand paying the ransom money by a target.

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Most of the instances, Ransom:Win32/Tescrypt.Q ransomware will instruct its sufferers to start funds move for the purpose of counteracting the modifications that the Trojan infection has presented to the sufferer’s device.

Ransom:Win32/Tescrypt.Q Summary

These adjustments 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Compression (or decompression);
  • 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.
  • 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;
  • Unconventionial language used in binary resources: Czech;
  • Uses Windows utilities for basic functionality;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to delete volume shadow copies;
  • Executed a process and injected code into it, probably while unpacking;
  • Behavior consistent with a dropper attempting to download the next stage.;
  • 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
  • Writes a potential ransom message to disk;
  • 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.
  • Attempts to identify installed AV products by registry key;
  • 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 records situated on the sufferer’s hard disk drive — so the target can no more utilize the data;
  • Preventing routine access to the target’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/Tescrypt.Q

The most regular networks through which Ransom:Win32/Tescrypt.Q Trojans are injected are:

  • By means of phishing e-mails;
  • As a consequence of customer ending up on a resource that holds a malicious software application;

As soon as the Trojan is effectively injected, it will either cipher the data on the victim’s PC or protect against the device from functioning in a proper manner – while additionally putting a ransom note that points out the requirement for the victims to effect the repayment for the function of decrypting the records or bring back the documents system back to the first problem. In most instances, the ransom note will certainly turn up when the client reboots the PC after the system has currently been damaged.

Ransom:Win32/Tescrypt.Q circulation channels.

In different corners of the globe, Ransom:Win32/Tescrypt.Q grows by leaps as well as bounds. Nonetheless, the ransom money notes as well as techniques of extorting the ransom amount may differ relying on particular neighborhood (local) settings. The ransom notes and tricks of obtaining the ransom money amount might vary depending on certain neighborhood (regional) settings.

Ransomware injection

For example:

    Faulty notifies about unlicensed software.

    In specific locations, the Trojans typically wrongfully report having actually identified some unlicensed applications enabled on the target’s device. The alert after that requires the user to pay the ransom money.

    Faulty declarations concerning prohibited web content.

    In nations where software piracy is less preferred, this technique is not as efficient for the cyber frauds. Alternatively, the Ransom:Win32/Tescrypt.Q popup alert may incorrectly assert to be stemming from a law enforcement establishment and also will report having located kid porn or other prohibited data on the tool.

    Ransom:Win32/Tescrypt.Q popup alert may wrongly declare to be acquiring from a regulation enforcement institution and will certainly report having situated child pornography or other unlawful data on the tool. The alert will in a similar way consist of a need for the customer to pay the ransom.

Technical details

File Info:

crc32: D2955954
md5: b9dede0904a7405f744e1231603aff4b
name: B9DEDE0904A7405F744E1231603AFF4B.mlw
sha1: e1621558f252af9f6926805253c79ddb09295523
sha256: c806a9e831c2b4492a0570e35ae16fda071d7a619c61e588a267d8d6c0114506
sha512: 3348ff39057444777cf853dcaf28557f892d9158d13b594cab384d5d346b859f73e2e0906e6c2ed90146ff1f197c18e92cc8e998dd5cce1ceac7a9f8758ed8b0
ssdeep: 12288:wpMCsOfMaUJnei6Q8oCK/VODpGpNQwpdirufVVtCIoA:wpMCsOfMnJ36NmcGjbFvoA
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2016
InternalName: Divinest
FileVersion: 0.55.146.226
CompanyName: Computer Associates International, Inc.
LegalTrademarks: Identification
ProductName: Holing Larks
ProductVersion: 0.94.173.130
FileDescription: Girded Homelier Environs
OriginalFilename: Lionisel.EXE

Ransom:Win32/Tescrypt.Q also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 004e08581 )
Elastic malicious (high confidence)
DrWeb Trojan.AVKill.60559
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Teslacrypt.OL4
ALYac Trojan.TeslaCrypt.Gen.4
Cylance Unsafe
Zillya Trojan.CryptGen.Win32.1
Sangfor Trojan.Win32.Save.a
Alibaba Ransom:Win32/Tescrypt.7233b633
K7GW Trojan ( 004e08581 )
Cybereason malicious.904a74
Symantec Ransom.TeslaCrypt
ESET-NOD32 Win32/Filecoder.TeslaCrypt.K
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Ransomware.Teslacrypt-7557167-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.TeslaCrypt.Gen.4
NANO-Antivirus Virus.Win32.Gen-Crypt.ccnc
SUPERAntiSpyware Trojan.Agent/Gen-Dropper
MicroWorld-eScan Trojan.TeslaCrypt.Gen.4
Tencent Trojan.Win32.Kryptik.jsfd
Ad-Aware Trojan.TeslaCrypt.Gen.4
Sophos ML/PE-A + Troj/Ransom-CNM
Comodo Malware@#2krwqdxnuvefu
BitDefenderTheta Gen:NN.ZexaF.34670.yq3@auS2@OlO
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HPCRYPTESLA.SM2
McAfee-GW-Edition BehavesLike.Win32.Ransomware.fh
FireEye Generic.mg.b9dede0904a7405f
Emsisoft Trojan.TeslaCrypt.Gen.4 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Generic.qnzc
Webroot Trojan.Dropper.Gen
Avira HEUR/AGEN.1120430
eGambit Unsafe.AI_Score_99%
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/Tescrypt.Q
Arcabit Trojan.TeslaCrypt.Gen.4
AegisLab Trojan.Win32.Generic.4!c
GData Trojan.TeslaCrypt.Gen.4
TACHYON Trojan/W32.Ransom.406040
AhnLab-V3 Trojan/Win32.Teslacrypt.C1350667
McAfee Ransomware-FGN!B9DEDE0904A7
MAX malware (ai score=100)
VBA32 BScope.Trojan.Encoder
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_HPCRYPTESLA.SM2
Rising Ransom.Tescrypt!8.3AF (CLOUD)
Ikarus Trojan.Win32.Filecoder
Fortinet W32/Kryptik.ERPT!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Bitman.HwcBZRkA

How to remove Ransom:Win32/Tescrypt.Q ransomware?

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

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

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/Tescrypt.Q 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Ransom:Win32/Tescrypt.Q 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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