Ransom:HTML/Tescrypt.E

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

What is Ransom:HTML/Tescrypt.E infection?

In this article you will certainly find about the definition of Ransom:HTML/Tescrypt.E and its negative effect on your computer. Such ransomware are a kind of malware that is elaborated by on-line frauds to require paying the ransom money by a victim.

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In the majority of the situations, Ransom:HTML/Tescrypt.E infection will certainly instruct its victims to start funds transfer for the objective of reducing the effects of the changes that the Trojan infection has introduced to the victim’s gadget.

Ransom:HTML/Tescrypt.E Summary

These modifications can be as adheres to:

  • 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.

  • 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.
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • 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;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to delete volume shadow copies;
  • Deletes its original binary from disk;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • 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.
  • 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 files situated on the victim’s disk drive — so the victim can no more use the data;
  • Preventing regular access to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
Similar behavior
Related domains
mkis.orgTrojan.Ransom.TeslaCrypt
tradinbow.comTrojan.Ransom.TeslaCrypt
primasentrausaha.comTrojan.Ransom.TeslaCrypt
masterlegue.comTrojan.Ransom.TeslaCrypt
classemgmt.testbada.comTrojan.Ransom.TeslaCrypt

Ransom:HTML/Tescrypt.E

The most regular networks whereby Ransom:HTML/Tescrypt.E Ransomware Trojans are injected are:

  • By means of phishing e-mails;
  • As a consequence of individual ending up on a resource that hosts a malicious software;

As quickly as the Trojan is efficiently infused, it will certainly either cipher the information on the victim’s PC or prevent the device from operating in a correct way – while additionally placing a ransom money note that mentions the demand for the targets to impact the payment for the function of decrypting the files or recovering the data system back to the preliminary problem. In most circumstances, the ransom money note will show up when the client reboots the PC after the system has actually currently been harmed.

Ransom:HTML/Tescrypt.E distribution networks.

In different edges of the globe, Ransom:HTML/Tescrypt.E grows by leaps and bounds. Nonetheless, the ransom money notes as well as techniques of obtaining the ransom money amount might vary relying on certain neighborhood (regional) setups. The ransom money notes and also tricks of obtaining the ransom quantity may differ depending on certain local (regional) settings.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software.

    In particular locations, the Trojans usually wrongfully report having discovered some unlicensed applications allowed on the target’s device. The sharp then requires the individual to pay the ransom money.

    Faulty statements about prohibited content.

    In countries where software program piracy is less popular, this approach is not as reliable for the cyber scams. Additionally, the Ransom:HTML/Tescrypt.E popup alert may incorrectly declare to be deriving from a law enforcement institution and also will certainly report having situated child porn or other prohibited data on the gadget.

    Ransom:HTML/Tescrypt.E popup alert may incorrectly claim to be deriving from a legislation enforcement establishment and also will report having situated youngster porn or various other illegal data on the device. The alert will in a similar way contain a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 1BDF2A6A
md5: 3ec286bf3081e954c21fcf8fac322877
name: 3EC286BF3081E954C21FCF8FAC322877.mlw
sha1: 4d82d1b05fdb0cdfdf6d5c159773d776ffe39aaa
sha256: 64feda3ef90aa919d47d426566cda1ea85bc48be46817ce07b28cfc38f07bc81
sha512: 4bf0cd1526548e663f60ee3cfeb4dc4237402774de3b9f4e3ecc19cc3bcae743a2ec9fab2d2a06c4dbcce02a5d16be16a9b898dbb2cdd70619ff92ba844c59cb
ssdeep: 6144:UgEKZx9vFvVMXGW4tkOsyXtmDiMdBQwfQUA5E3i6LFtfJBMQ:UedVMXGztRdXtm9oE3i+mQ
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright xa9 Google Inc. 2004-2005
FileVersion: 1.0.25.0
CompanyName: Google Inc.
ProductName: Gmail
ProductVersion: 1.0.25.0
FileDescription: Gmail Notifier
OriginalFilename: gnotify.exe
Translation: 0x0409 0x04b0

Ransom:HTML/Tescrypt.E also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 0055e3ef1 )
Elasticmalicious (high confidence)
DrWebTrojan.PWS.Papras.1984
CynetMalicious (score: 100)
ALYacTrojan.Ransom.TeslaCrypt
CylanceUnsafe
ZillyaTrojan.Filecoder.Win32.2201
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaRansom:Win32/TeslaCrypt.2a87cdc7
K7GWTrojan ( 0055e3ef1 )
Cybereasonmalicious.f3081e
SymantecML.Attribute.HighConfidence
ESET-NOD32Win32/Filecoder.TeslaCrypt.K
APEXMalicious
AvastWin32:Rootkit-gen [Rtk]
ClamAVBC.Win.Packer.Troll-14
KasperskyUDS:DangerousObject.Multi.Generic
BitDefenderTrojan.BrsecmonE.1
NANO-AntivirusTrojan.Win32.Papras.ebcuuh
ViRobotTrojan.Win32.R.Agent.314368.L
SUPERAntiSpywareTrojan.Agent/Gen-Papras
MicroWorld-eScanTrojan.BrsecmonE.1
TencentWin32.Trojan.Filecoder.Lory
Ad-AwareTrojan.BrsecmonE.1
SophosTroj/Ransom-CTW
ComodoMalware@#123e98s2dgyoi
BitDefenderThetaGen:NN.ZexaF.34690.tu0@amukSDii
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_CRYPTESLA.CBQ163O
McAfee-GW-EditionBehavesLike.Win32.Virut.fc
FireEyeGeneric.mg.3ec286bf3081e954
EmsisoftTrojan.BrsecmonE.1 (B)
SentinelOneStatic AI – Malicious PE
WebrootW32.Trojan.Gen
AviraHEUR/AGEN.1103896
Antiy-AVLTrojan/Generic.ASMalwS.17AA33A
KingsoftWin32.Troj.Generic_a.a.(kcloud)
MicrosoftRansom:HTML/Tescrypt.E
AegisLabTrojan.Win32.Yakes.mEqY
GDataTrojan.BrsecmonE.1
AhnLab-V3Trojan/Win32.Teslacrypt.R177345
Acronissuspicious
McAfeeArtemis!3EC286BF3081
MAXmalware (ai score=83)
VBA32BScope.Trojan.Yakes
MalwarebytesMalware.AI.677407692
PandaTrj/GdSda.A
TrendMicro-HouseCallRansom_CRYPTESLA.CBQ163O
RisingRansom.Tescrypt!8.3AF (CLOUD)
YandexTrojan.Filecoder!Ubs3l6D8R5g
IkarusTrojan-Spy.Banker.Citadel
MaxSecureTrojan.Malware.300983.susgen
FortinetW32/Filecoder_TeslaCrypt.K!tr
AVGWin32:Rootkit-gen [Rtk]
Paloaltogeneric.ml

How to remove Ransom:HTML/Tescrypt.E 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:HTML/Tescrypt.E 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:HTML/Tescrypt.E 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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