Win32:TeslaCrypt-FU [Trj]

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

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

In this post you will certainly locate concerning the definition of Win32:TeslaCrypt-FU [Trj] and also its unfavorable effect on your computer system. Such ransomware are a type of malware that is specified by on-line frauds to require paying the ransom by a target.

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Most of the situations, Win32:TeslaCrypt-FU [Trj] infection will instruct its sufferers to launch funds transfer for the objective of reducing the effects of the amendments that the Trojan infection has actually presented to the victim’s device.

Win32:TeslaCrypt-FU [Trj] Summary

These alterations 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.
  • 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: Mongolian;
  • 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;
  • Created a service that was not started;
  • 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 situated on the victim’s hard drive — so the sufferer can no more make use of the information;
  • Preventing regular accessibility to the target’s workstation;

Win32:TeslaCrypt-FU [Trj]

The most typical channels where Win32:TeslaCrypt-FU [Trj] are injected are:

  • By means of phishing emails;
  • As an effect of user winding up on a resource that holds a malicious software;

As soon as the Trojan is efficiently infused, it will certainly either cipher the data on the victim’s computer or avoid the gadget from functioning in an appropriate way – while also placing a ransom money note that points out the requirement for the sufferers to effect the repayment for the objective of decrypting the records or recovering the documents system back to the initial problem. In many instances, the ransom note will come up when the client reboots the COMPUTER after the system has actually currently been damaged.

Win32:TeslaCrypt-FU [Trj] circulation channels.

In numerous corners of the globe, Win32:TeslaCrypt-FU [Trj] expands by leaps and bounds. Nonetheless, the ransom notes and also techniques of obtaining the ransom quantity may differ depending on specific local (regional) setups. The ransom notes as well as tricks of extorting the ransom money quantity may vary depending on certain local (regional) settings.

Ransomware injection

For example:

    Faulty alerts regarding unlicensed software program.

    In certain locations, the Trojans usually wrongfully report having discovered some unlicensed applications made it possible for on the target’s tool. The alert then demands the user to pay the ransom.

    Faulty statements concerning unlawful web content.

    In nations where software piracy is less popular, this approach is not as effective for the cyber fraudulences. Additionally, the Win32:TeslaCrypt-FU [Trj] popup alert might incorrectly assert to be deriving from a law enforcement organization and also will report having located child porn or various other prohibited information on the gadget.

    Win32:TeslaCrypt-FU [Trj] popup alert might falsely declare to be obtaining from a regulation enforcement establishment and also will certainly report having located child porn or other illegal information on the device. The alert will similarly have a need for the individual to pay the ransom.

Technical details

File Info:

crc32: D4466BA7
md5: 1fca02c9b41ca8164dcbe5624a925036
name: 1FCA02C9B41CA8164DCBE5624A925036.mlw
sha1: a65d2fdbea2f21772adae110ef03eb187bc0fdac
sha256: 90bd8c1f54522db5821ff3ed670531f50e88ec61ce1ab3b5f9c9477cebd79ff3
sha512: 423cbe37adf1f7f7ae610d0097368109a4ea767bd58cfd013f6afdbe54d34f430fa6c9287909b99d7177902f97f411e2e1b3c6c3eef8acd7c72a6630e377f2a8
ssdeep: 6144:KXWVWipoUM2rSBnr5XdsM9ZWYXOqJsVup/sO3z+WuLY:KiWimUxrUrZxmuOq6VupX40
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Squatted xa9 2036
InternalName: Tuition
FileVersion: 17, 147, 100, 213
CompanyName: TuneUp Software
ProductName: Steady Shifters
FileDescription: Pronounces
OriginalFilename: Sanding.exe

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

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 004d41c61 )
Elasticmalicious (high confidence)
DrWebTrojan.DownLoader16.7535
CynetMalicious (score: 100)
CAT-QuickHealRansom.TeslaCrypt.WR4
ALYacGen:Variant.Zusy.160176
CylanceUnsafe
ZillyaTrojan.Filecoder.Win32.748
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaRansom:Win32/Yakes.af2a33d1
K7GWTrojan ( 004d41c61 )
Cybereasonmalicious.9b41ca
CyrenW32/Trojan.SZQO-8784
ESET-NOD32Win32/Filecoder.TeslaCrypt.E
ZonerTrojan.Win32.35377
APEXMalicious
AvastWin32:TeslaCrypt-FU [Trj]
KasperskyTrojan.Win32.Yakes.mxuy
BitDefenderGen:Variant.Zusy.160176
NANO-AntivirusTrojan.Win32.Dwn.dwcala
ViRobotTrojan.Win32.U.Agent.316733
MicroWorld-eScanGen:Variant.Zusy.160176
TencentMalware.Win32.Gencirc.114c7b36
Ad-AwareGen:Variant.Zusy.160176
SophosML/PE-A + Mal/Tinba-AB
BitDefenderThetaGen:NN.ZexaF.34628.tq3@ay!HtLnG
VIPRETrojan.Win32.Generic!BT
TrendMicroTROJ_FRS.0NA103BL20
McAfee-GW-EditionTeslaCrypt!1FCA02C9B41C
FireEyeGeneric.mg.1fca02c9b41ca816
EmsisoftGen:Variant.Zusy.160176 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Cryptodef.ha
WebrootTrojan.Dropper.Gen
AviraTR/Crypt.ZPACK.73544
eGambitGeneric.Malware
KingsoftWin32.Troj.Yakes.mx.(kcloud)
MicrosoftRansom:Win32/Tescrypt.C
AegisLabTrojan.Win32.Yakes.4!c
GDataGen:Variant.Zusy.160176
AhnLab-V3Win-Trojan/Lockycrypt.Gen
Acronissuspicious
McAfeeTeslaCrypt!1FCA02C9B41C
MAXmalware (ai score=100)
VBA32BScope.Trojan.Yakes
PandaTrj/Genetic.gen
TrendMicro-HouseCallTROJ_FRS.0NA103BL20
RisingTrojan.Win32.Tescrypt.t (CLOUD)
YandexTrojan.Filecoder!ANB2t9pszuo
IkarusTrojan.Win32.Filecoder
FortinetW32/Deshacop.XO!tr
AVGWin32:TeslaCrypt-FU [Trj]
Qihoo-360Win32/Ransom.Tescrypt.HwcB0UcA

How to remove Win32:TeslaCrypt-FU [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-FU [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-FU [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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