Ransom.TeslaCrypt

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

What is Ransom.TeslaCrypt infection?

In this short article you will find about the meaning of Ransom.TeslaCrypt and also its negative impact on your computer. Such ransomware are a kind of malware that is specified by on the internet fraudulences to demand paying the ransom by a victim.

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In the majority of the situations, Ransom.TeslaCrypt virus will certainly advise its targets to launch funds transfer for the purpose of counteracting the modifications that the Trojan infection has presented to the target’s tool.

Ransom.TeslaCrypt 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.
  • 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.

  • Creates an excessive number of UDP connection attempts to external IP addresses;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to delete volume shadow copies;
  • A process attempted to delay the analysis task by a long amount of time.;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • 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;
  • EternalBlue behavior. Allows cyber threat actors to remotely execute arbitrary code and gain access to a network by sending specially crafted packets.

    This is has made EternalBlue trick popular with various malware, such as Trickbot, a modular banking trojan, as well as CoinMiner and WannaMine, crypto miners that use the EternalBlue exploit in order to gain access to computing power to mine cryptocurrencies.

  • Generates some ICMP traffic;
  • Appends a known Sage ransomware file extension to files that have been encrypted;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • 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 documents situated on the sufferer’s hard drive — so the target can no more use the information;
  • Preventing normal access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Ransom.TeslaCrypt

One of the most typical channels whereby Ransom.TeslaCrypt are injected are:

  • By ways of phishing e-mails;
  • As an effect of individual winding up on a resource that organizes a harmful software program;

As soon as the Trojan is effectively infused, it will certainly either cipher the data on the sufferer’s PC or protect against the gadget from operating in an appropriate manner – while also placing a ransom note that discusses the demand for the targets to impact the repayment for the purpose of decrypting the papers or restoring the data system back to the first condition. In the majority of circumstances, the ransom note will come up when the customer restarts the PC after the system has currently been harmed.

Ransom.TeslaCrypt distribution networks.

In different edges of the globe, Ransom.TeslaCrypt grows by leaps and bounds. Nevertheless, the ransom money notes as well as tricks of extorting the ransom quantity may differ relying on specific local (regional) setups. The ransom money notes and also techniques of extorting the ransom quantity may vary depending on certain neighborhood (regional) settings.

Ransomware injection

For instance:

    Faulty signals regarding unlicensed software program.

    In particular areas, the Trojans usually wrongfully report having actually identified some unlicensed applications allowed on the sufferer’s device. The alert then demands the user to pay the ransom.

    Faulty statements regarding prohibited material.

    In countries where software program piracy is less preferred, this technique is not as efficient for the cyber frauds. Conversely, the Ransom.TeslaCrypt popup alert may wrongly declare to be originating from a law enforcement establishment and will certainly report having located child porn or other illegal information on the tool.

    Ransom.TeslaCrypt popup alert may wrongly assert to be obtaining from a legislation enforcement institution and also will certainly report having located youngster pornography or other prohibited data on the device. The alert will likewise contain a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: 3FBBE05B
md5: 85eb41ac7b9252482b6ff3660471c39d
name: 85EB41AC7B9252482B6FF3660471C39D.mlw
sha1: 162e68cfa635228e541021bb790a0e17f23fe3a8
sha256: f25a5671305816619dc3b9d69ddf5ef5350132cc013b48553b9c5c63bbe6d0bd
sha512: 88cb31a257f347117ae233eb7eb094dd7f672e819dc93c75b77f0bd6a700315eea166a6d837251033995abf1e0c979d74b3371b4c9ee46815332b87c564cf08e
ssdeep: 3072:/PsCM8YiTNqS1HgQxDV/4uCUyDGhKsim+bWo9wKBT73IjFM/GH0UuIr:/P1NqSgwDlCPahKsx+71V73Ipq1g
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright xa9 cowey fwtk
InternalName: Cvjlfb
FileVersion: 1.114
CompanyName: Buoorhn x
ProductName: Tn flerwgc
ProductVersion: 1.114
FileDescription: Oynrkl eixqt pkmpm ruzvf
OriginalFilename: Cvjlfb
Translation: 0x0000 0x0009

Ransom.TeslaCrypt also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectGBM.malware.01
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Ransom.Sage.30
FireEye Generic.mg.85eb41ac7b925248
CAT-QuickHeal Trojan.Deshacop
McAfee Ransom-FCJ!85EB41AC7B92
Cylance Unsafe
VIPRE Trojan.Win32.Skintrim.c (v)
AegisLab Trojan.Win32.Deshacop.4!c
Sangfor Virus_Suspicious.Win32.Sality.ae
K7AntiVirus Riskware ( 0040eff71 )
BitDefender Gen:Variant.Ransom.Sage.30
K7GW Riskware ( 0040eff71 )
Cybereason malicious.c7b925
Cyren W32/S-ba03db07!Eldorado
Symantec Ransom.Cry!g1
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Ransomware.Sage-5744913-0
Kaspersky Trojan.Win32.Deshacop.dir
NANO-Antivirus Trojan.Win32.Deshacop.elnliu
Rising Ransom.Cerber!8.3058 (TFE:dGZlOgU7ahK3BJo1Dw)
Ad-Aware Gen:Variant.Ransom.Sage.30
Emsisoft Gen:Variant.Ransom.Sage.30 (B)
Comodo TrojWare.Win32.Genasom.A@70kb9g
F-Secure Trojan.TR/Crypt.XPACK.Gen7
DrWeb Trojan.MulDrop7.9067
Zillya Trojan.Deshacop.Win32.751
TrendMicro Ransom_HPMILICRY.SM1
McAfee-GW-Edition BehavesLike.Win32.Generic.ch
Sophos ML/PE-A + Troj/Ransom-EDF
Ikarus Trojan-Ransom.Sage
Jiangmin Trojan.Deshacop.tn
Avira TR/Crypt.XPACK.Gen7
MAX malware (ai score=100)
Antiy-AVL Trojan/Win32.Deshacop
Microsoft Ransom:Win32/Cerber!rfn
Arcabit Trojan.Ransom.Sage.30
ZoneAlarm Trojan.Win32.Deshacop.dir
GData Gen:Variant.Ransom.Sage.30
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Cerber.R192009
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34590.kq1@aiVgRYgi
ALYac Gen:Variant.Ransom.Sage.30
VBA32 SScope.TrojanRansom.WannaCry
Malwarebytes Ransom.TeslaCrypt
Panda Trj/Genetic.gen
ESET-NOD32 a variant of Win32/Kryptik.FJHH
TrendMicro-HouseCall Ransom_HPMILICRY.SM1
Tencent Malware.Win32.Gencirc.10b1fbf3
Yandex Trojan.Deshacop!rvvGucB2Rtc
SentinelOne Static AI – Malicious PE
Fortinet W32/Kryptik.FNGP!tr
AVG Win32:Malware-gen
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 Win32/Trojan.Generic.HwcBUFcA

How to remove Ransom.TeslaCrypt 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 Ransom.TeslaCrypt 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 Ransom.TeslaCrypt 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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