Trojan.Win32.Zenpak.axjl

Written by Robert Bailey

What is Trojan.Win32.Zenpak.axjl infection?

In this short article you will certainly find about the definition of Trojan.Win32.Zenpak.axjl as well as its unfavorable influence on your computer. Such ransomware are a type of malware that is elaborated by on the internet fraudulences to require paying the ransom money by a sufferer.

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In the majority of the instances, Trojan.Win32.Zenpak.axjl infection will certainly instruct its targets to initiate funds move for the function of neutralizing the amendments that the Trojan infection has actually presented to the target’s device.

Trojan.Win32.Zenpak.axjl Summary

These alterations 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);
  • Presents an Authenticode digital signature;
  • 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.
  • Mimics the system’s user agent string for its own requests;
  • Possible date expiration check, exits too soon after checking local time;
  • A process attempted to delay the analysis task.;
  • Expresses interest in specific running processes;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • A process created a hidden window;
  • Performs some HTTP requests;
  • Uses Windows utilities for basic functionality;
  • Executed a process and injected code into it, probably while unpacking;
  • A system process is generating network traffic likely as a result of process injection;
  • 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
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • 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.
  • Ciphering the documents found on the sufferer’s hard disk drive — so the target can no longer make use of the data;
  • Preventing regular accessibility to the sufferer’s workstation;
Similar behavior
Related domains
www.ip-adress.com BScope.TrojanRansom.Shade

Trojan.Win32.Zenpak.axjl

The most typical channels whereby Trojan.Win32.Zenpak.axjl are infused are:

  • By ways of phishing e-mails;
  • As a repercussion of customer winding up on a resource that organizes a malicious software;

As quickly as the Trojan is effectively infused, it will either cipher the data on the target’s PC or avoid the device from functioning in an appropriate fashion – while likewise putting a ransom note that mentions the need for the victims to effect the repayment for the function of decrypting the papers or restoring the documents system back to the first condition. In many circumstances, the ransom money note will certainly turn up when the customer restarts the PC after the system has actually already been damaged.

Trojan.Win32.Zenpak.axjl circulation networks.

In different corners of the globe, Trojan.Win32.Zenpak.axjl expands by jumps and bounds. Nonetheless, the ransom money notes and techniques of obtaining the ransom money quantity might differ depending upon certain neighborhood (regional) settings. The ransom notes and methods of extorting the ransom money quantity may vary depending on certain neighborhood (regional) settings.

Ransomware injection

For example:

    Faulty informs regarding unlicensed software application.

    In certain areas, the Trojans usually wrongfully report having actually found some unlicensed applications made it possible for on the victim’s device. The alert after that demands the customer to pay the ransom money.

    Faulty statements regarding illegal material.

    In countries where software application piracy is less preferred, this method is not as effective for the cyber frauds. Alternatively, the Trojan.Win32.Zenpak.axjl popup alert may wrongly assert to be stemming from a law enforcement establishment and also will certainly report having located kid porn or various other prohibited information on the gadget.

    Trojan.Win32.Zenpak.axjl popup alert may incorrectly assert to be acquiring from a law enforcement establishment as well as will certainly report having situated child porn or other illegal data on the device. The alert will likewise consist of a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 7648EDED
md5: 90bf3090cd118cd65277c0c7534cb4e2
name: upload_file
sha1: 78d42bf84eff541a0907b43e5ca547fbda7d737d
sha256: 2c36f7e58a05ee3ba35549d77bf5927aede1a71558b2efced3409806a7ba6e0b
sha512: 8855790821c3055478bdc21276505f2af9fccaf7fe27b2da98ca13eafea15a08202b32e8746e1b8e0586a0aec6c43beeb98695c1f6b03d9f0cf70342d15d29ac
ssdeep: 6144:9J2gzw5f7ZH3bv5vph31WjY63XqhL8PQgyJkvxyIhQqB:9JXzQjZH3Z3KY6XsOfySvxyIZ
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: xa9Qihu 360 Software Co., Ltd. All rights reserved.
InternalName: SystemRegistryClean
FileVersion: 1, 0, 0, 1003
CompanyName: QIHU 360 SOFTWARE CO. LIMITED
ProductName: 360 SystemRegistryClean
ProductVersion: 1, 0, 0, 1003
FileDescription: 360 SystemRegistryClean
OriginalFilename: SystemRegistryClean.exe
Translation: 0x0409 0x04b0

Trojan.Win32.Zenpak.axjl also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.34817897
FireEye Generic.mg.90bf3090cd118cd6
McAfee W32/PinkSbot-HF!90BF3090CD11
Sangfor Malware
K7AntiVirus Trojan ( 0057161d1 )
BitDefender Trojan.GenericKD.34817897
K7GW Trojan ( 0057161d1 )
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:DangerousSig [Trj]
Kaspersky Trojan.Win32.Zenpak.axjl
Rising Trojan.Generic@ML.89 (RDMK:qV5C3rGfSVQsTFW/Ns7tIg)
Ad-Aware Trojan.GenericKD.34817897
DrWeb Trojan.QakBot.11
Invincea Mal/EncPk-APV
Sophos Mal/EncPk-APV
SentinelOne DFI – Malicious PE
GData Trojan.GenericKD.34817897
ZoneAlarm Trojan.Win32.Zenpak.axjl
Microsoft Trojan:Win32/Qakbot.SD!MTB
AhnLab-V3 Trojan/Win32.Kryptik.R353430
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34570.dz1@a4f7XXpi
VBA32 BScope.TrojanRansom.Shade
Panda Trj/GdSda.A
ESET-NOD32 a variant of Win32/Kryptik.HGVG
MAX malware (ai score=84)
eGambit PE.Heur.InvalidSig
Fortinet W32/RTM.AG!tr
AVG Win32:DangerousSig [Trj]
Cybereason malicious.84eff5
Paloalto generic.ml
Qihoo-360 Win32/Trojan.6a2

How to remove Trojan.Win32.Zenpak.axjl ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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.Zenpak.axjl 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.Zenpak.axjl 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/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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