Win32:TeslaCrypt-DT [Trj]

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

What is Win32:TeslaCrypt-DT [Trj] infection?

In this short article you will find concerning the meaning of Win32:TeslaCrypt-DT [Trj] as well as its adverse influence on your computer system. Such ransomware are a form of malware that is clarified by on-line scams to demand paying the ransom money by a target.

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Most of the situations, Win32:TeslaCrypt-DT [Trj] ransomware will advise its sufferers to launch funds transfer for the function of reducing the effects of the amendments that the Trojan infection has actually introduced to the target’s gadget.

Win32:TeslaCrypt-DT [Trj] 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.
  • 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;
  • 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.
  • Unconventionial language used in binary resources: Portuguese (Brazilian);
  • Uses Windows utilities for basic functionality;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to delete volume shadow copies;
  • Exhibits behavior characteristic of Alphacrypt/Teslacrypt ransomware;
  • 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 identify installed AV products by registry key;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Creates a known TeslaCrypt/AlphaCrypt ransomware decryption instruction / key file.;
  • 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 papers located on the victim’s disk drive — so the victim can no more use the information;
  • Preventing routine accessibility 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.

Win32:TeslaCrypt-DT [Trj]

One of the most regular channels through which Win32:TeslaCrypt-DT [Trj] are injected are:

  • By ways of phishing emails;
  • As a consequence of user ending up on a resource that organizes a harmful software application;

As soon as the Trojan is efficiently injected, it will either cipher the data on the victim’s computer or protect against the tool from operating in a correct fashion – while likewise placing a ransom money note that discusses the need for the victims to impact the repayment for the function of decrypting the files or restoring the documents system back to the preliminary problem. In many circumstances, the ransom note will certainly show up when the client restarts the PC after the system has currently been damaged.

Win32:TeslaCrypt-DT [Trj] distribution channels.

In various corners of the globe, Win32:TeslaCrypt-DT [Trj] expands by leaps as well as bounds. However, the ransom money notes as well as tricks of obtaining the ransom money amount may differ depending on specific neighborhood (local) settings. The ransom notes as well as tricks of obtaining the ransom amount might vary depending on certain neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty notifies about unlicensed software.

    In specific locations, the Trojans often wrongfully report having actually found some unlicensed applications made it possible for on the victim’s device. The sharp after that requires the customer to pay the ransom.

    Faulty declarations regarding illegal material.

    In nations where software application piracy is less preferred, this technique is not as efficient for the cyber frauds. Additionally, the Win32:TeslaCrypt-DT [Trj] popup alert might falsely declare to be deriving from a police organization and will report having situated kid porn or various other prohibited data on the tool.

    Win32:TeslaCrypt-DT [Trj] popup alert may incorrectly declare to be obtaining from a law enforcement institution as well as will report having located child pornography or other prohibited data on the tool. The alert will similarly consist of a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 46E99485
md5: 9b855f77e84b1bf7f62d9d3c5e6ccfd5
name: 9B855F77E84B1BF7F62D9D3C5E6CCFD5.mlw
sha1: b6c6e86affd697d2e0df2152a786c3eb3aafc47b
sha256: 2b2f0ec195a659b25750e9abccda3c85f44eafc939de9e9f2bc0de9f0a90e052
sha512: d01dd6890f0111011c284a19cd958fd70b8ea8e2e99a84a9380cfa098674377fd8997fef763e593fcd5f8133d75cbe1e96d9e5d58372e8cdd4c14fd779aa97eb
ssdeep: 6144:yyXbg1kpLk7BOVqvkg2ylIuTJVQ8lo/5bDiMsmK3g3XSh7thexRm:yMgu2BOMlIu9Zo/V2F3jejm
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Gridiron xa9 1970
InternalName: Customs
FileVersion: 195, 197, 205, 95
CompanyName: Information Packaging
ProductName: Engarde Countenances
FileDescription: Imposes
OriginalFilename: Destination.exe

Win32:TeslaCrypt-DT [Trj] also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 0055e3ef1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.1927
Cynet Malicious (score: 100)
ALYac Gen:Heur.Ransom.REntS.Gen.1
Cylance Unsafe
Zillya Worm.Allaple.Win32.35860
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Bitman.68b107cd
K7GW Trojan ( 0055e3ef1 )
Cybereason malicious.7e84b1
Symantec Trojan.Gen
ESET-NOD32 Win32/Filecoder.TeslaCrypt.E
APEX Malicious
Avast Win32:TeslaCrypt-DT [Trj]
Kaspersky Trojan-Ransom.Win32.Bitman.aeqd
BitDefender Gen:Heur.Ransom.REntS.Gen.1
NANO-Antivirus Trojan.Win32.Encoder.dwsppp
MicroWorld-eScan Gen:Heur.Ransom.REntS.Gen.1
Tencent Malware.Win32.Gencirc.114c7ae7
Ad-Aware Gen:Heur.Ransom.REntS.Gen.1
Sophos Mal/Generic-S
Comodo Malware@#19lb96umu2fbp
BitDefenderTheta Gen:NN.ZexaF.34628.tq3@aKslQMcH
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_FRS.0NA103BL20
McAfee-GW-Edition BehavesLike.Win32.PWSZbot.fc
FireEye Generic.mg.9b855f77e84b1bf7
Emsisoft Gen:Heur.Ransom.REntS.Gen.1 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Yakes.ezc
Webroot Trojan.Dropper.Gen
Avira HEUR/AGEN.1108092
eGambit Generic.Malware
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Ransom:Win32/Tescrypt.C
Arcabit Trojan.Ransom.REntS.Gen.1
AegisLab Trojan.Win32.Bitman.4!c
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Heur.Ransom.REntS.Gen.1
AhnLab-V3 Malware/Win32.Generic.C1189818
Acronis suspicious
McAfee GenericR-KBG!9B855F77E84B
MAX malware (ai score=100)
VBA32 BScope.Trojan.Yakes
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_FRS.0NA103BL20
Rising Ransom.Tescrypt!8.3AF (CLOUD)
Yandex Trojan.Filecoder!M9B/eJM89po
Ikarus Trojan.Win32.Filecoder
Fortinet W32/Kryptik.EFAD!tr
AVG Win32:TeslaCrypt-DT [Trj]
Qihoo-360 Win32/Ransom.Bitman.HxQBEpsA

How to remove Win32:TeslaCrypt-DT [Trj] ransomware?

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 Win32:TeslaCrypt-DT [Trj] 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 Win32:TeslaCrypt-DT [Trj] 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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