Ransom:Win32/Tescrypt.T

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

What is Ransom:Win32/Tescrypt.T infection?

In this short article you will find regarding the definition of Ransom:Win32/Tescrypt.T and its unfavorable impact on your computer system. Such ransomware are a kind of malware that is clarified by online frauds to demand paying the ransom by a target.

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In the majority of the instances, Ransom:Win32/Tescrypt.T virus will certainly instruct its sufferers to launch funds move for the function of reducing the effects of the amendments that the Trojan infection has actually introduced to the sufferer’s device.

Ransom:Win32/Tescrypt.T Summary

These modifications 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.
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Network activity contains more than one unique useragent.;
  • 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;
  • Writes a potential ransom message to disk;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Appends a known CryptFile2 ransomware file extension to files that have been encrypted;
  • Creates a known CryptFile2 ransomware decryption instruction / key file.;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the target’s disk drive — so the victim can no longer make use of the information;
  • 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.T

The most typical networks where Ransom:Win32/Tescrypt.T 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 an effect of customer winding up on a source that organizes a harmful software;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the target’s PC or protect against the gadget from working in an appropriate manner – while also putting a ransom money note that states the need for the targets to effect the repayment for the function of decrypting the papers or restoring the data system back to the initial condition. In many instances, the ransom note will certainly come up when the customer restarts the COMPUTER after the system has actually already been damaged.

Ransom:Win32/Tescrypt.T distribution networks.

In different edges of the globe, Ransom:Win32/Tescrypt.T grows by leaps as well as bounds. Nonetheless, the ransom money notes as well as techniques of obtaining the ransom money quantity might differ depending on specific regional (local) settings. The ransom notes and also methods of extorting the ransom quantity might vary depending on specific local (regional) setups.

Ransomware injection

For example:

    Faulty informs about unlicensed software application.

    In certain locations, the Trojans frequently wrongfully report having detected some unlicensed applications made it possible for on the victim’s gadget. The alert after that requires the user to pay the ransom money.

    Faulty declarations regarding unlawful material.

    In nations where software piracy is less popular, this technique is not as efficient for the cyber scams. Alternatively, the Ransom:Win32/Tescrypt.T popup alert may wrongly claim to be deriving from a law enforcement institution and will certainly report having situated kid pornography or other illegal information on the device.

    Ransom:Win32/Tescrypt.T popup alert may wrongly assert to be deriving from a regulation enforcement institution and also will certainly report having situated kid porn or various other unlawful data on the device. The alert will in a similar way contain a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: B76C8A40
md5: 1d6a8dce073290419abbdfa544f4c629
name: 1D6A8DCE073290419ABBDFA544F4C629.mlw
sha1: 5fd35b69784739a632a69ba4832fc61a68a3e1a4
sha256: 583bbc85eab7380b8d3c7b91dad9878d79b4afacb8c9f3aa643b14d9ba5b962a
sha512: ed5e581b5e6d4cdecb9e297ff320c3ec47d1697d1bb0c57126dbec99ee829f457e015adbeb1c618b09d2d251bf8b542dfab6be82bf058c1fac28dbfc3ab9956c
ssdeep: 1536:/gMdKRVYNwPwD0vYegIAY3fzhXqe9drNfiyhLZonSrkDc0tFx3pyf440CL0R49n://ddf0v9gIvVBdr8yhLZ4SAbmZn
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright 1995 - 2006
InternalName: iJrBqOBeap
FileVersion: 3,6,4,3
CompanyName: WorkStat
LegalTrademarks1: iJrBqOBeap
ProductName: iJrBqOBeap
ProductVersion: 3,6,4,3
FileDescription: JrBqOBeap
OriginalFilename: iJrBqOBeap.exe
Translation: 0x040e 0x04e5

Ransom:Win32/Tescrypt.T also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 004e1e941 )
DrWebTrojan.DownLoader21.56224
CynetMalicious (score: 100)
CAT-QuickHealRansomware.Tescrypt.WR5
ALYacTrojan.Ransom.HydraCrypt
CylanceUnsafe
ZillyaTrojan.Blocker.Win32.34594
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaRansom:Win32/generic.ali2000010
K7GWTrojan ( 004e1e941 )
Cybereasonmalicious.e07329
CyrenW32/Blocker.ZZPL-3738
SymantecML.Attribute.HighConfidence
ESET-NOD32Win32/Filecoder.HydraCrypt.C
ZonerTrojan.Win32.41965
APEXMalicious
AvastWin32:Dropper-gen [Drp]
KasperskyTrojan-Ransom.Win32.Blocker.ikqm
BitDefenderTrojan.GenericKD.3294245
NANO-AntivirusTrojan.Win32.Dwn.efhekz
ViRobotTrojan.Win32.Z.Blocker.109568
MicroWorld-eScanTrojan.GenericKD.3294245
TencentWin32.Trojan.Blocker.Eaec
Ad-AwareTrojan.GenericKD.3294245
SophosMal/Generic-R + Troj/Ransom-DED
ComodoMalware@#gktdmjcex3k4
BitDefenderThetaGen:NN.ZexaF.34628.gy0@aa0oYxmi
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_HYDRA.BYX
McAfee-GW-EditionBehavesLike.Win32.Generic.ch
FireEyeGeneric.mg.1d6a8dce07329041
EmsisoftTrojan.GenericKD.3294245 (B)
SentinelOneStatic AI – Suspicious PE
JiangminTrojan.Blocker.doa
WebrootW32.Blocker.ikqm
AviraTR/Samca.16016197
eGambitGeneric.Malware
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftRansom:Win32/Tescrypt.T
ArcabitTrojan.Generic.D324425
AegisLabTrojan.Win32.Generic.lJ1Y
GDataWin32.Trojan.Agent.GY5OZH
TACHYONRansom/W32.Blocker.109568.B
AhnLab-V3Trojan/Win32.Ransom.C1485874
Acronissuspicious
McAfeeGeneric.ys
MAXmalware (ai score=100)
VBA32Heur.Malware-Cryptor.Filecoder
MalwarebytesMalware.Heuristic.1001
PandaTrj/WLT.B
TrendMicro-HouseCallRansom_HYDRA.BYX
RisingRansom.Blocker!8.12A (C64:YzY0OpkBOkeuwzcL)
YandexTrojan.Blocker!PcNAGGElS50
IkarusTrojan.Win32.Filecoder
FortinetW32/Kryptik.FDCK!tr
AVGWin32:Dropper-gen [Drp]
Qihoo-360Win32/Ransom.Blocker.HwoC8GsA

How to remove Ransom:Win32/Tescrypt.T virus?

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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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.T 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.T 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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