Ransom:Win32/Tescrypt.N

Written by Robert Bailey

What is Ransom:Win32/Tescrypt.N infection?

In this post you will certainly find concerning the definition of Ransom:Win32/Tescrypt.N and also its adverse effect on your computer. Such ransomware are a form of malware that is specified by on the internet scams to require paying the ransom by a victim.

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Most of the situations, Ransom:Win32/Tescrypt.N virus will certainly instruct its targets to start funds move for the function of neutralizing the changes that the Trojan infection has actually presented to the victim’s device.

Ransom:Win32/Tescrypt.N 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.
  • 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.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to delete volume shadow copies;
  • 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.
  • Creates a copy of itself;
  • 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 documents located on the sufferer’s disk drive — so the target can no more make use of 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.N

The most normal channels where Ransom:Win32/Tescrypt.N Ransomware are injected are:

  • By means of phishing emails;
  • As a consequence of customer winding up on a source that organizes a malicious software;

As quickly as the Trojan is efficiently infused, it will either cipher the information on the victim’s PC or protect against the device from working in a proper way – while additionally positioning a ransom money note that discusses the demand for the targets to effect the payment for the function of decrypting the documents or bring back the documents system back to the initial problem. In most instances, the ransom note will come up when the customer restarts the PC after the system has actually currently been damaged.

Ransom:Win32/Tescrypt.N circulation channels.

In various edges of the world, Ransom:Win32/Tescrypt.N expands by jumps and also bounds. Nonetheless, the ransom notes and also methods of extorting the ransom money amount may differ depending upon specific local (local) setups. The ransom money notes and tricks of extorting the ransom money amount may vary depending on specific regional (regional) settings.

Ransomware injection

For instance:

    Faulty alerts concerning unlicensed software program.

    In particular locations, the Trojans often wrongfully report having detected some unlicensed applications enabled on the target’s device. The alert then demands the user to pay the ransom.

    Faulty declarations about unlawful web content.

    In nations where software piracy is much less prominent, this technique is not as efficient for the cyber frauds. Alternatively, the Ransom:Win32/Tescrypt.N popup alert might incorrectly declare to be stemming from a law enforcement establishment and also will certainly report having located kid pornography or other unlawful data on the gadget.

    Ransom:Win32/Tescrypt.N popup alert may wrongly claim to be obtaining from a law enforcement institution as well as will certainly report having located youngster pornography or other prohibited data on the gadget. The alert will in a similar way consist of a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: 5FAFA71C
md5: 39ddc6626e8fd9d75bdc6288cf8194a4
name: 39DDC6626E8FD9D75BDC6288CF8194A4.mlw
sha1: 07a41a45011dd50cf4b5b62cb122fb5c6edf8e87
sha256: 0e2da69f601ef8c62c3e894d04f172ac4994b81abb0a02023c3063728d36bd15
sha512: 693a6c9e98dde0827987a50cd8f329b2a598eeeaa9c16067634b800d56da2a0d48b258342691a29caef1b60f89d497b0bfd8ac9b6479e1c390b311db66ea43ad
ssdeep: 6144:ECLsrQv/WUTD5HG9xT/+y2KOzK9hv6ePVbhWDpZ:lL8Qve8M9t+qB6SVcD
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Evaer.com All rights reserved.
InternalName: Aid
CompanyName: Evaer.com
FileDescription: Teamfoundation Elf Stealing
LegalTrademarks: Evaer.com All rights reserved.
ProductName: Aid
Languages: English
ProductVersion: 5.1.6.4
PrivateBuild: 5.1.6.4
OriginalFilename: Aid
Translation: 0x0409 0x04b0

Ransom:Win32/Tescrypt.N also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.Common.B9BE96C5
K7AntiVirus Trojan ( 0055e3ef1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.3953
Cynet Malicious (score: 99)
ALYac Trojan.BrsecmonE.1
Cylance Unsafe
Zillya Trojan.Foreign.Win32.54771
Sangfor Trojan.Win32.GenericKD.3
CrowdStrike win/malicious_confidence_90% (D)
K7GW Trojan ( 0055e3ef1 )
Cybereason malicious.26e8fd
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/Filecoder.Crysis.D
APEX Malicious
Avast Win32:Evo-gen [Susp]
ClamAV Win.Trojan.Agent-6370290-0
Kaspersky Trojan-Ransom.Win32.Foreign.nbot
BitDefender Trojan.BrsecmonE.1
NANO-Antivirus Trojan.Win32.Encoder.ecjdgt
ViRobot Trojan.Win32.Crysis.238592
MicroWorld-eScan Trojan.BrsecmonE.1
Tencent Win32.Trojan.Foreign.Lnez
Ad-Aware Trojan.BrsecmonE.1
Sophos Mal/Generic-S
Comodo Malware@#1rgl8yddoje2r
BitDefenderTheta Gen:NN.ZexaF.34678.oq0@aGoqnMdi
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CRYPAURA.CBQ165C
McAfee-GW-Edition BehavesLike.Win32.Emotet.dc
FireEye Generic.mg.39ddc6626e8fd9d7
Emsisoft Trojan.BrsecmonE.1 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan.Foreign.awz
Webroot W32.Trojan.GenKD
Avira HEUR/AGEN.1103897
eGambit Unsafe.AI_Score_85%
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/Tescrypt.N
Arcabit Trojan.BrsecmonE.1
AegisLab Trojan.Win32.Foreign.j!c
GData Trojan.BrsecmonE.1
AhnLab-V3 Malware/Win32.Ransom_.C1452747
Acronis suspicious
McAfee Artemis!39DDC6626E8F
MAX malware (ai score=80)
VBA32 BScope.TrojanPSW.Papras
Malwarebytes MachineLearning/Anomalous.97%
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_CRYPAURA.CBQ165C
Yandex Trojan.Foreign!N2HT832asLk
Ikarus Trojan.Win32.Zlader
Fortinet W32/Foreign.NBOT!tr
AVG Win32:Evo-gen [Susp]
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Foreign.HwoCEpsA

How to remove Ransom:Win32/Tescrypt.N 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

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.N 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.N 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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