Trojan:Win32/Tepoyx.A

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

What is Trojan:Win32/Tepoyx.A infection?

In this article you will discover concerning the meaning of Trojan:Win32/Tepoyx.A and its negative impact on your computer. Such ransomware are a form of malware that is specified by on the internet scams to require paying the ransom by a target.

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Most of the cases, Trojan:Win32/Tepoyx.A ransomware will certainly advise its sufferers to launch funds transfer for the function of reducing the effects of the changes that the Trojan infection has introduced to the target’s gadget.

Trojan:Win32/Tepoyx.A 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);
  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Executed a process and injected code into it, probably while unpacking;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Attempts to create or modify system certificates;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents found on the sufferer’s hard disk — so the sufferer can no longer make use of the data;
  • Preventing normal accessibility to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Trojan:Win32/Tepoyx.A

One of the most common networks where Trojan:Win32/Tepoyx.A Trojans are injected are:

  • By ways of phishing e-mails;
  • As a consequence of customer ending up on a source that holds a destructive software application;

As soon as the Trojan is effectively infused, it will either cipher the data on the target’s computer or avoid the gadget from operating in an appropriate way – while additionally putting a ransom money note that mentions the demand for the victims to effect the settlement for the purpose of decrypting the files or bring back the documents system back to the first condition. In many instances, the ransom note will turn up when the customer restarts the COMPUTER after the system has currently been harmed.

Trojan:Win32/Tepoyx.A distribution networks.

In different corners of the globe, Trojan:Win32/Tepoyx.A grows by jumps and bounds. Nonetheless, the ransom notes and also methods of obtaining the ransom money quantity might vary depending on certain local (regional) settings. The ransom notes and also tricks of extorting the ransom quantity might vary depending on particular local (local) setups.

Ransomware injection

For example:

    Faulty informs regarding unlicensed software application.

    In particular locations, the Trojans usually wrongfully report having actually detected some unlicensed applications made it possible for on the target’s device. The sharp after that requires the user to pay the ransom.

    Faulty declarations concerning unlawful content.

    In nations where software program piracy is less preferred, this technique is not as effective for the cyber fraudulences. Conversely, the Trojan:Win32/Tepoyx.A popup alert may wrongly declare to be originating from a law enforcement establishment and also will certainly report having located child porn or various other unlawful data on the gadget.

    Trojan:Win32/Tepoyx.A popup alert may incorrectly declare to be acquiring from a regulation enforcement institution and also will certainly report having located kid pornography or various other unlawful data on the tool. The alert will likewise include a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 39A60C60
md5: 538a1f0eadece2782cf801d0a5f9ca6e
name: 538A1F0EADECE2782CF801D0A5F9CA6E.mlw
sha1: 73f9a4c1c6aec68aac038dc303a2c9eb95ff6187
sha256: 69b8d6d0f0f05d82e3a9b6fd68e6989230a8cc3bf238f6373d3013272795c74f
sha512: 63c9b12fb8c1d521dfbf431c33c56831f5f9c83c842150b894e146baa76a7e5e33b4a5f2e11cee39ca84d3bfa7d79428ad427aff5ace0b567caa5cc43dc9dfd2
ssdeep: 768:LQf+KXTMAOUJ19Ysi9ZvInohSL8ttzR6ED4AnRrm3RwNpQsT/oo/tTe77cv0hd2:mdVOUJ19Ysi9ZvIAlzR7ewNpr1oood
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan:Win32/Tepoyx.A also known as:

GridinSoftTrojan.Ransom.Gen
K7AntiVirusSpyware ( 0003868d1 )
DrWebTrojan.Proxy.23968
CynetMalicious (score: 100)
CylanceUnsafe
ZillyaTrojan.Yakes.Win32.6552
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_80% (D)
K7GWSpyware ( 0003868d1 )
Cybereasonmalicious.eadece
SymantecTrojan.Ransomlock!g9
ESET-NOD32Win32/ProxyChanger.EO
APEXMalicious
AvastWin32:Cryptor
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderGen:Trojan.Sresmon.Gen.1
NANO-AntivirusTrojan.Win32.Yakes.yhyoo
ViRobotTrojan.Win32.A.Yakes.65536.B
MicroWorld-eScanGen:Trojan.Sresmon.Gen.1
TencentWin32.Trojan.Yakes.bfqo
Ad-AwareGen:Trojan.Sresmon.Gen.1
SophosML/PE-A + Mal/EncPk-AGX
ComodoMalware@#pyzp72tp1fdu
BitDefenderThetaGen:NN.ZexaF.34686.euW@a03voTl
VIPRETrojan.Win32.Reveton.a (v)
McAfee-GW-EditionBehavesLike.Win32.Trojan.kh
FireEyeGeneric.mg.538a1f0eadece278
EmsisoftGen:Trojan.Sresmon.Gen.1 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan/Yakes.hbz
WebrootW32.Malware.Heur
AviraHEUR/AGEN.1109083
eGambitUnsafe.AI_Score_99%
KingsoftWin32.Troj.Yakes.(kcloud)
MicrosoftTrojan:Win32/Tepoyx.A
ArcabitTrojan.Sresmon.Gen.1
AegisLabTrojan.Win32.Yakes.4!c
GDataGen:Trojan.Sresmon.Gen.1
AhnLab-V3Trojan/Win32.Jorik.C163855
Acronissuspicious
McAfeePWS-Zbot.gen.ano
MAXmalware (ai score=82)
VBA32BScope.Malware-Cryptor.Oop
PandaTrj/Genetic.gen
RisingTrojan.Bulta!8.35D (CLOUD)
YandexTrojan.ProxyChanger!OzUTXlxfsVg
IkarusTrojan.Win32.Loktrom
FortinetW32/Sasfis.ANO!tr
AVGWin32:Cryptor
Paloaltogeneric.ml

How to remove Trojan:Win32/Tepoyx.A virus?

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:Win32/Tepoyx.A 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 Trojan:Win32/Tepoyx.A 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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