Trojan.TeslaCrypt.EF

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

What is Trojan.TeslaCrypt.EF infection?

In this post you will locate about the meaning of Trojan.TeslaCrypt.EF as well as its adverse influence on your computer system. Such ransomware are a kind of malware that is specified by on-line fraudulences to require paying the ransom money by a target.

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Most of the cases, Trojan.TeslaCrypt.EF virus will advise its sufferers to launch funds transfer for the function of neutralizing the modifications that the Trojan infection has introduced to the target’s device.

Trojan.TeslaCrypt.EF Summary

These alterations 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.
  • 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;
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • Unconventionial language used in binary resources: Maltese;
  • Uses Windows utilities for basic functionality;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to delete volume shadow copies;
  • Executed a process and injected code into it, probably while unpacking;
  • 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.
  • Attempts to identify installed AV products by registry key;
  • 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 found on the sufferer’s hard disk drive — so the target can no longer use the data;
  • Preventing regular accessibility to the sufferer’s workstation;
Similar behavior
Related domains
diwali2k15.inRansom.Teslacrypt.OL4
samuday.orgRansom.Teslacrypt.OL4
maxmpl.comRansom.Teslacrypt.OL4
setprosports.infoRansom.Teslacrypt.OL4
masterlegue.comRansom.Teslacrypt.OL4
toolaria.comRansom.Teslacrypt.OL4
www.afternic.comRansom.Teslacrypt.OL4

Trojan.TeslaCrypt.EF

The most regular channels whereby Trojan.TeslaCrypt.EF Ransomware are injected 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 ending up on a resource that hosts a harmful software application;

As soon as the Trojan is successfully infused, it will either cipher the data on the sufferer’s PC or protect against the gadget from functioning in a proper way – while also positioning a ransom note that states the requirement for the sufferers to effect the repayment for the function of decrypting the documents or recovering the documents system back to the initial problem. In many instances, the ransom money note will certainly show up when the client restarts the COMPUTER after the system has already been harmed.

Trojan.TeslaCrypt.EF distribution channels.

In numerous corners of the globe, Trojan.TeslaCrypt.EF grows by jumps and also bounds. Nonetheless, the ransom notes as well as tricks of extorting the ransom quantity may vary depending on particular regional (local) setups. The ransom notes and also tricks of extorting the ransom money amount might vary depending on particular neighborhood (regional) settings.

Ransomware injection

For instance:

    Faulty signals concerning unlicensed software program.

    In specific locations, the Trojans often wrongfully report having spotted some unlicensed applications allowed on the target’s gadget. The sharp after that demands the user to pay the ransom money.

    Faulty statements regarding prohibited content.

    In countries where software application piracy is much less preferred, this approach is not as efficient for the cyber fraudulences. Conversely, the Trojan.TeslaCrypt.EF popup alert may falsely declare to be deriving from a police establishment and will certainly report having located child porn or other unlawful data on the gadget.

    Trojan.TeslaCrypt.EF popup alert might incorrectly claim to be acquiring from a law enforcement organization as well as will report having located child porn or other illegal data on the tool. The alert will similarly have a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 38F894BE
md5: f4a4f123cf09c99c8bd980dac1cabc09
name: F4A4F123CF09C99C8BD980DAC1CABC09.mlw
sha1: dcfaf261aefd6b9dd176143963512a0a87118ccc
sha256: 188ae422779bb5a0c5692848c8b35bd1ea4b7fff3e38bfa86f11b28f99469159
sha512: 2afbec5ce7da2b8f23f683af57f167f733a9258e16dbb42ca5d6a529a8377a469651f98415aca0f29abf792e8dbfbd407cf09ddb9fb6a3e44c56488713e196ae
ssdeep: 6144:HMptDPB7UJVT+NWLDSbU1XzmZ2+GvZXKxAgij8I+KhGuDtmqbc5fz:HCtDpowozB+wZ6+QKgXqGz
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2010
InternalName: Unsolder
FileVersion: 0.8.52.101
CompanyName: Raxco Software, Inc.
LegalTrademarks: Bread
ProductName: Couriers Aestheticsy
ProductVersion: 0.81.197.204
FileDescription: Concluded Commanding Apartments
OriginalFilename: Upstairsl.EXE

Trojan.TeslaCrypt.EF also known as:

GridinSoftTrojan.Ransom.Gen
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.TeslaCrypt.EF
FireEyeGeneric.mg.f4a4f123cf09c99c
CAT-QuickHealRansom.Teslacrypt.OL4
McAfeeRansomware-FHE!F4A4F123CF09
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 004e12bb1 )
BitDefenderTrojan.TeslaCrypt.EF
K7GWTrojan ( 004e12bb1 )
Cybereasonmalicious.3cf09c
BitDefenderThetaGen:NN.ZexaF.34590.xq2@a44Xg2oO
SymantecTrojan.Gen
TrendMicro-HouseCallRansom_HPCRYPTESLA.SM2
AvastWin32:Papras-AT [Trj]
KasperskyPacked.Win32.Tpyn
AlibabaTrojan:Win32/Kryptik.5429e498
NANO-AntivirusTrojan.Win32.AVKill.ebcwrs
ViRobotTrojan.Win32.TeslaCrypt.Gen.D
Ad-AwareTrojan.TeslaCrypt.EF
TACHYONTrojan/W32.Ransom.389120.B
EmsisoftTrojan.TeslaCrypt.EF (B)
F-SecureTrojan.TR/Crypt.XPACK.Gen7
DrWebTrojan.AVKill.60714
ZillyaTrojan.CryptGen.Win32.1
TrendMicroRansom_HPCRYPTESLA.SM2
McAfee-GW-EditionRansomware-FHE!F4A4F123CF09
SophosML/PE-A + Mal/Ransom-EM
SentinelOneStatic AI – Malicious PE
JiangminPacked.Tpyn.afc
eGambitUnsafe.AI_Score_100%
AviraTR/Crypt.XPACK.Gen7
Antiy-AVLTrojan/Win32.TSGeneric
MicrosoftRansom:Win32/Tescrypt!rfn
ArcabitTrojan.TeslaCrypt.EF
SUPERAntiSpywareTrojan.Agent/Gen-Dropper
ZoneAlarmPacked.Win32.Tpyn
GDataTrojan.TeslaCrypt.EF
CynetMalicious (score: 100)
AhnLab-V3Win-Trojan/Lockycrypt.Gen
VBA32BScope.Trojan.AVKill
ALYacTrojan.TeslaCrypt.EF
MAXmalware (ai score=100)
MalwarebytesGeneric.Malware/Suspicious
PandaTrj/CI.A
APEXMalicious
ESET-NOD32a variant of Win32/Kryptik.HDJG
RisingRansom.Tescrypt!8.3AF (CLOUD)
YandexTrojan.Bitman!NxneeS5Ar4w
IkarusTrojan-Ransom.TeslaCrypt4
FortinetW32/Kryptik.ESFA!tr
AVGWin32:Papras-AT [Trj]
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_100% (D)
Qihoo-360Win32/Ransom.Bitman.HwcBZd8A

How to remove Trojan.TeslaCrypt.EF 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 Trojan.TeslaCrypt.EF 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Trojan.TeslaCrypt.EF 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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