Trojan.Win32.Zenpak.ahno

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

What is Trojan.Win32.Zenpak.ahno infection?

In this post you will discover concerning the interpretation of Trojan.Win32.Zenpak.ahno as well as its adverse influence on your computer system. Such ransomware are a type of malware that is elaborated by online scams to require paying the ransom money by a target.

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Most of the cases, Trojan.Win32.Zenpak.ahno ransomware will certainly instruct its victims to launch funds transfer for the objective of reducing the effects of the changes that the Trojan infection has presented to the sufferer’s tool.

Trojan.Win32.Zenpak.ahno Summary

These adjustments 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);
  • Attempts to connect to a dead IP:Port (1 unique times);
  • 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.
  • Possible date expiration check, exits too soon after checking local time;
  • Mimics the system’s user agent string for its own requests;
  • A process attempted to delay the analysis task.;
  • A named pipe was used for inter-process communication;
  • 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;
  • Unconventionial binary language: Chinese (Simplified);
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • 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
  • Checks the version of Bios, possibly for anti-virtualization;
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • 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 files situated on the sufferer’s hard disk — so the sufferer can no more make use of the information;
  • Preventing routine access to the sufferer’s workstation;
Similar behavior
Related domains
www.ip-adress.comBScope.TrojanRansom.Shade

Trojan.Win32.Zenpak.ahno

The most normal networks where Trojan.Win32.Zenpak.ahno are infused are:

  • By ways of phishing e-mails;
  • As an effect of user winding up on a resource that organizes a destructive software application;

As quickly as the Trojan is efficiently injected, it will either cipher the data on the sufferer’s computer or avoid the device from functioning in an appropriate manner – while likewise placing a ransom money note that points out the demand for the victims to effect the payment for the purpose of decrypting the papers or bring back the file system back to the first problem. In many circumstances, the ransom note will come up when the client reboots the PC after the system has actually currently been harmed.

Trojan.Win32.Zenpak.ahno circulation channels.

In various edges of the world, Trojan.Win32.Zenpak.ahno expands by leaps and bounds. However, the ransom notes as well as tricks of extorting the ransom quantity might vary depending on certain neighborhood (regional) settings. The ransom money notes and tricks of obtaining the ransom amount may vary depending on certain neighborhood (local) setups.

Ransomware injection

For instance:

    Faulty informs concerning unlicensed software.

    In certain locations, the Trojans usually wrongfully report having actually found some unlicensed applications enabled on the victim’s gadget. The alert after that demands the user to pay the ransom.

    Faulty statements about illegal web content.

    In nations where software application piracy is less prominent, this approach is not as efficient for the cyber frauds. Alternatively, the Trojan.Win32.Zenpak.ahno popup alert may incorrectly assert to be stemming from a police establishment as well as will certainly report having located child pornography or other unlawful information on the device.

    Trojan.Win32.Zenpak.ahno popup alert may incorrectly assert to be acquiring from a regulation enforcement institution as well as will certainly report having located child pornography or various other prohibited data on the tool. The alert will in a similar way contain a demand for the individual to pay the ransom money.

Technical details

File Info:

crc32: E6307B4D
md5: 87d9223becb87fa159459e03ba8638f7
name: tmpb1a8cvrw
sha1: 60a3458bd8297b40f848271f9191c26ea6be2e30
sha256: 439aef05b4b4f1f9466ccb764df8399557c925b153395782314a10b6e4952ddf
sha512: ccc96562bd452878c5d19bbacee19c305cd55413d483cbc221313878f16aeeb5eeb23520521222094c18f5c5f193166904cccacef699d5fbcd0ac93ea9973a1f
ssdeep: 12288:DtlQY2wwLHqpVxT85LfHbRhco5QFuo+N8Ykfgn6ggKB/cmg:Dv2wwTX5Ldhf5QUo+NLkfg939a
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (c) 2003-2016 Glarysoft Ltd
InternalName: Report.exe
FileVersion: 5, 0, 0, 6
CompanyName: Glarysoft Ltd
ProductName: Glary Utilities
ProductVersion: 5, 0, 0, 1
FileDescription: Glarysoft Crash Report
OriginalFilename: CrashReport.exe
Translation: 0x0804 0x03a8

Trojan.Win32.Zenpak.ahno also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetectVM.malwareB
MicroWorld-eScanTrojan.GenericKDZ.67972
FireEyeGeneric.mg.87d9223becb87fa1
McAfeeW32/PinkSbot-GW!87D9223BECB8
MalwarebytesBackdoor.Qbot
VIPRETrojan.Win32.Generic.pak!cobra
K7AntiVirusRiskware ( 0040eff71 )
BitDefenderTrojan.GenericKDZ.67972
K7GWRiskware ( 0040eff71 )
Cybereasonmalicious.bd8297
TrendMicroBackdoor.Win32.QAKBOT.SME
BitDefenderThetaGen:NN.ZexaF.34128.OI1@aGoaV6fj
APEXMalicious
AvastWin32:DangerousSig [Trj]
GDataTrojan.GenericKDZ.67972
KasperskyTrojan.Win32.Zenpak.ahno
Ad-AwareTrojan.GenericKDZ.67972
SophosTroj/Qbot-FS
F-SecureHeuristic.HEUR/AGEN.1118848
Invinceaheuristic
Trapminemalicious.high.ml.score
EmsisoftTrojan.GenericKDZ.67972 (B)
AviraHEUR/AGEN.1118848
MAXmalware (ai score=81)
Antiy-AVLGrayWare/Win32.Kryptik.ehls
Endgamemalicious (high confidence)
ArcabitTrojan.Generic.D10984
ZoneAlarmTrojan.Win32.Zenpak.ahno
MicrosoftTrojan:Win32/Qakbot.SD!MTB
CynetMalicious (score: 85)
AhnLab-V3Trojan/Win32.Kryptik.R340774
Acronissuspicious
VBA32BScope.TrojanRansom.Shade
ALYacTrojan.GenericKDZ.67972
CylanceUnsafe
PandaTrj/GdSda.A
ESET-NOD32a variant of Win32/GenKryptik.EMPU
RisingTrojan.Kryptik!1.C745 (C64:YzY0OgfIdvYpGRzC)
SentinelOneDFI – Malicious PE
eGambitPE.Heur.InvalidSig
FortinetW32/Cridex.VHO!tr
AVGWin32:DangerousSig [Trj]
CrowdStrikewin/malicious_confidence_80% (D)
Qihoo-360HEUR/QVM19.1.FCB8.Malware.Gen

How to remove Trojan.Win32.Zenpak.ahno 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.ahno 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 Trojan.Win32.Zenpak.ahno 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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