Backdoor:Win32/Zeprox.A

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

What is Backdoor:Win32/Zeprox.A infection?

In this post you will certainly discover regarding the interpretation of Backdoor:Win32/Zeprox.A and its adverse influence on your computer. Such ransomware are a kind of malware that is clarified by on the internet frauds to demand paying the ransom by a target.

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In the majority of the cases, Backdoor:Win32/Zeprox.A virus will instruct its victims to launch funds move for the objective of reducing the effects of the amendments that the Trojan infection has actually introduced to the target’s gadget.

Backdoor:Win32/Zeprox.A Summary

These alterations can be as adheres to:

  • Attempts to connect to a dead IP:Port (3 unique times);
  • A process attempted to delay the analysis task.;
  • Starts servers listening on 0.0.0.0:4572, 0.0.0.0:2784;
  • A process created a hidden window;
  • Uses Windows utilities for basic functionality;
  • 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
  • Ciphering the records located on the target’s hard disk drive — so the victim can no more make use of the data;
  • Preventing normal accessibility to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Backdoor:Win32/Zeprox.A

The most regular networks through which Backdoor:Win32/Zeprox.A Trojans 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 a consequence of individual winding up on a source that hosts a destructive software;

As quickly as the Trojan is effectively infused, it will either cipher the information on the sufferer’s PC or protect against the device from functioning in a correct fashion – while also putting a ransom note that mentions the requirement for the sufferers to impact the settlement for the objective of decrypting the records or restoring the file system back to the preliminary condition. In many circumstances, the ransom note will show up when the customer restarts the COMPUTER after the system has actually currently been damaged.

Backdoor:Win32/Zeprox.A distribution networks.

In numerous corners of the world, Backdoor:Win32/Zeprox.A grows by leaps as well as bounds. Nonetheless, the ransom notes and tricks of extorting the ransom quantity might vary relying on particular local (local) setups. The ransom notes and also methods of obtaining the ransom money amount may differ depending on certain local (regional) settings.

Ransomware injection

For instance:

    Faulty alerts about unlicensed software application.

    In particular areas, the Trojans frequently wrongfully report having actually discovered some unlicensed applications allowed on the target’s tool. The alert after that requires the individual to pay the ransom money.

    Faulty declarations about prohibited material.

    In nations where software application piracy is less preferred, this approach is not as effective for the cyber fraudulences. Conversely, the Backdoor:Win32/Zeprox.A popup alert may wrongly assert to be originating from a police institution as well as will certainly report having located child porn or various other prohibited data on the device.

    Backdoor:Win32/Zeprox.A popup alert may falsely assert to be acquiring from a law enforcement institution and also will certainly report having located child porn or various other unlawful information on the device. The alert will similarly include a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: D3FC4127
md5: 3fbb11048d334412e383a43208901fe2
name: 3FBB11048D334412E383A43208901FE2.mlw
sha1: bf2381450afdb15c1da6d09fc49d04e2f42788c0
sha256: d6846bdb53c0300ecd6c8432bdb3404f4a528857e25aa77b19b1d23e1aab21d4
sha512: 708b38a8177cb69edb31df4c85e0ce67ddb72e8c1c16596d444256496e99cec07b6a8380fb08fa56332b0bf42cd1137543cf5c96e8a32c3fd2d5280ca173d1d9
ssdeep: 1536:/Kjwq1ftIbs1fkbZw7Gc+BEQ8+VctVhK6QAm5T3Q60TRmKdKFrmVxQA0zR:/Kjwqd42Weac+BEt+VUw6iRoRSrKmzR
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Backdoor:Win32/Zeprox.A also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 0055e3e61 )
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader16.5924
Cynet Malicious (score: 100)
ALYac Gen:Heur.Mint.Zard.1
Cylance Unsafe
Zillya Trojan.Blocker.Win32.30928
Sangfor Trojan.Win32.Heuristic.rg
K7GW Trojan ( 0055e3e61 )
Cybereason malicious.48d334
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Delf.ASK
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Blocker.hnfz
BitDefender Gen:Heur.Mint.Zard.1
NANO-Antivirus Trojan.Win32.Blocker.dvearb
MicroWorld-eScan Gen:Heur.Mint.Zard.1
Ad-Aware Gen:Heur.Mint.Zard.1
Sophos Mal/Generic-S
Comodo Malware@#3sdmnarxbx09h
BitDefenderTheta Gen:NN.ZelphiF.34738.hKW@aKYM0@i
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Infected.ch
FireEye Generic.mg.3fbb11048d334412
Emsisoft Gen:Heur.Mint.Zard.1 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan/Blocker.omj
Webroot Trojan.Dropper.Gen
Avira HEUR/AGEN.1123767
eGambit Unsafe.AI_Score_83%
Antiy-AVL Trojan/Generic.ASMalwS.1374CCA
Kingsoft Win32.Hack.Zeprox.lj.(kcloud)
Microsoft Backdoor:Win32/Zeprox.A
Arcabit Trojan.Mint.Zard.1
AegisLab Trojan.Win32.Blocker.j!c
ZoneAlarm Trojan-Ransom.Win32.Blocker.hnfz
GData Gen:Heur.Mint.Zard.1
AhnLab-V3 Trojan/Win32.Scar.C1023631
McAfee Artemis!3FBB11048D33
MAX malware (ai score=89)
Panda Trj/Genetic.gen
Rising [email protected] (RDML:YyhalNC2v2pm1nYTTk4vqw)
Yandex Trojan.Blocker!xVNRiF06glI
Ikarus Trojan.Win32.Delf
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Blocker.ASK!tr
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove Backdoor:Win32/Zeprox.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 Backdoor:Win32/Zeprox.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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Backdoor:Win32/Zeprox.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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