Win32:TeslaCrypt-EH [Trj]

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

In this article you will certainly find about the definition of Win32:TeslaCrypt-EH [Trj] and its unfavorable effect on your computer system. Such ransomware are a kind of malware that is elaborated by on the internet fraudulences to require paying the ransom by a victim.

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In the majority of the instances, Win32:TeslaCrypt-EH [Trj] virus will certainly instruct its targets to initiate funds move for the function of neutralizing the modifications that the Trojan infection has actually presented to the target’s gadget.

Win32:TeslaCrypt-EH [Trj] Summary

These modifications can be as follows:

  • 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;
  • 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;
  • Executed a process and injected code into it, probably while unpacking;
  • Deletes its original binary from disk;
  • Attempts to delete volume shadow copies;
  • Exhibits behavior characteristic of Alphacrypt/Teslacrypt ransomware;
  • Modifies boot configuration settings;
  • 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;
  • 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 files found on the sufferer’s hard disk — so the sufferer can no more utilize the information;
  • Preventing regular accessibility to the sufferer’s workstation;

Win32:TeslaCrypt-EH [Trj]

The most normal channels where Win32:TeslaCrypt-EH [Trj] Ransomware Trojans are injected are:

  • By ways of phishing e-mails;
  • As a repercussion of user ending up on a resource that hosts a malicious software application;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the sufferer’s computer or prevent the tool from functioning in a correct way – while additionally placing a ransom note that points out the need for the targets to effect the settlement for the function of decrypting the documents or recovering the documents system back to the initial condition. In most circumstances, the ransom note will certainly show up when the customer reboots the COMPUTER after the system has currently been damaged.

Win32:TeslaCrypt-EH [Trj] distribution channels.

In various edges of the globe, Win32:TeslaCrypt-EH [Trj] expands by jumps and bounds. Nevertheless, the ransom notes and techniques of obtaining the ransom quantity might differ relying on certain neighborhood (regional) setups. The ransom money notes and also methods of obtaining the ransom amount may vary depending on certain local (local) setups.

Ransomware injection

For instance:

    Faulty alerts concerning unlicensed software application.

    In particular areas, the Trojans often wrongfully report having found some unlicensed applications allowed on the victim’s device. The sharp after that demands the user to pay the ransom.

    Faulty declarations about illegal content.

    In nations where software piracy is less popular, this technique is not as efficient for the cyber scams. Alternatively, the Win32:TeslaCrypt-EH [Trj] popup alert may wrongly assert to be stemming from a law enforcement institution as well as will certainly report having situated youngster porn or various other prohibited information on the device.

    Win32:TeslaCrypt-EH [Trj] popup alert may wrongly claim to be acquiring from a legislation enforcement establishment and will certainly report having located kid porn or various other unlawful information on the tool. The alert will in a similar way have a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: 93E259C0
md5: 09fd18fea2dd3712879d4fb05cd9ea57
name: 09FD18FEA2DD3712879D4FB05CD9EA57.mlw
sha1: e4ff07aed054f6bb044464fa151ceb9f76711fce
sha256: 22c28b7609005c6be99d7d78d4a6ac07899c60595e3d765c2dbfa6ebada50f22
sha512: bc6e4a354ed86b303c5e870629df70ff43a93148e5ce83b6f33faffa3519692d956dae45df917e3ce7a04c4ec523a0693939447831c155c065c1e4be7f3f2c4b
ssdeep: 6144:kKyCTde63ayo3ssK4XiyGaYbjZ2hYIn6EKFdx8Iwot6lZg19D5d+E+2LgTNaFZ8:kQM6P2xdGaYx285E26lEaBNaL8xna8g
type: PE32 executable (console) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Amenable (C) 2017
InternalName: Winner
FileDescription: Unscaled
OriginalFilename: Upstarts.exe
CompanyName: Slimware Utilities, Inc.

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

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 0055e3ef1 )
Elastic malicious (high confidence)
DrWeb Trojan.AVKill.63405
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Teslacrypt.D4
ALYac Trojan.Ransom.TeslaCrypt
Cylance Unsafe
Zillya Trojan.Filecoder.Win32.1467
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Ransom:Win32/Tescrypt.90a0aa98
K7GW Trojan ( 0055e3ef1 )
Cybereason malicious.ea2dd3
Baidu Win32.Trojan.Filecoder.k
Symantec Ransom.TeslaCrypt
ESET-NOD32 Win32/Filecoder.TeslaCrypt.I
APEX Malicious
Avast Win32:TeslaCrypt-EH [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Cripack.Gen.1
NANO-Antivirus Trojan.Win32.AVKill.dzahsc
ViRobot Trojan.Win32.TeslaCrypt.Gen.A
MicroWorld-eScan Trojan.Cripack.Gen.1
Tencent Malware.Win32.Gencirc.10c4ab63
Ad-Aware Trojan.Cripack.Gen.1
Sophos Mal/Generic-R + Mal/Ransom-DL
Comodo Malware@#14yiygvxp6rt5
F-Secure Heuristic.HEUR/AGEN.1123583
BitDefenderTheta Gen:NN.ZexaF.34670.wq0@aqF39TlG
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Vawtrak.fh
FireEye Generic.mg.09fd18fea2dd3712
Emsisoft Trojan.Cripack.Gen.1 (B)
SentinelOne Static AI – Malicious PE
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1123583
eGambit Generic.Malware
Antiy-AVL Trojan[Ransom]/Win32.Agent
Microsoft Ransom:Win32/Tescrypt.C
Arcabit Trojan.Cripack.Gen.1
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Cripack.Gen.1
TACHYON Trojan/W32.Cryptodef.360448.C
McAfee PWSZbot-FAOI!09FD18FEA2DD
MAX malware (ai score=100)
VBA32 BScope.Trojan.Inject
Malwarebytes Generic.Malware/Suspicious
Panda Trj/GdSda.A
Rising Trojan.Ransom-Tesla!1.A322 (CLOUD)
Yandex Trojan.Agent!Oz4bByL1/bk
Ikarus Trojan.Win32.Filecoder
Fortinet W32/Injector.CNRF!tr
AVG Win32:TeslaCrypt-EH [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Tescrypt.HxQBEpsA

How to remove Win32:TeslaCrypt-EH [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-EH [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-EH [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/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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