Trojan.Win32.Zenpak.ahmm

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

What is Trojan.Win32.Zenpak.ahmm infection?

In this short article you will locate about the definition of Trojan.Win32.Zenpak.ahmm and also its adverse effect on your computer system. Such ransomware are a kind of malware that is elaborated by on the internet scams to require paying the ransom by a sufferer.

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Most of the instances, Trojan.Win32.Zenpak.ahmm infection will certainly advise its targets to launch funds transfer for the purpose of neutralizing the amendments that the Trojan infection has actually introduced to the victim’s device.

Trojan.Win32.Zenpak.ahmm 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);
  • Attempts to connect to a dead IP:Port (4 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;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • 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;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • 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 papers located on the target’s hard drive — so the sufferer can no longer 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.
Similar behavior
Related domains
z.whorecord.xyzBScope.TrojanRansom.Shade
a.tomx.xyzBScope.TrojanRansom.Shade
www.ip-adress.comBScope.TrojanRansom.Shade
ocsp.verisign.comBScope.TrojanRansom.Shade
sf.symcd.comBScope.TrojanRansom.Shade
s2.symcb.comBScope.TrojanRansom.Shade
sv.symcd.comBScope.TrojanRansom.Shade

Trojan.Win32.Zenpak.ahmm

The most common channels through which Trojan.Win32.Zenpak.ahmm are infused are:

  • By means of phishing emails;
  • As a consequence of user winding up on a resource that organizes a harmful software program;

As soon as the Trojan is successfully infused, it will either cipher the information on the victim’s computer or prevent the gadget from operating in a proper manner – while also putting a ransom note that mentions the demand for the sufferers to effect the repayment for the objective of decrypting the papers or restoring the file system back to the initial condition. In a lot of instances, the ransom note will certainly turn up when the client restarts the COMPUTER after the system has currently been harmed.

Trojan.Win32.Zenpak.ahmm distribution channels.

In numerous edges of the world, Trojan.Win32.Zenpak.ahmm grows by jumps and bounds. However, the ransom money notes and methods of extorting the ransom money quantity may differ depending upon certain local (local) setups. The ransom notes and also techniques of extorting the ransom money quantity might differ depending on specific local (regional) setups.

Ransomware injection

As an example:

    Faulty alerts regarding unlicensed software program.

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

    Faulty statements regarding unlawful web content.

    In nations where software program piracy is less prominent, this technique is not as reliable for the cyber scams. Alternatively, the Trojan.Win32.Zenpak.ahmm popup alert might incorrectly declare to be stemming from a law enforcement organization and will report having located kid porn or various other unlawful data on the device.

    Trojan.Win32.Zenpak.ahmm popup alert might wrongly assert to be acquiring from a legislation enforcement institution and will certainly report having located child pornography or various other prohibited information on the tool. The alert will similarly consist of a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: F2AD4670
md5: 3cc733045cefde5ed789180265111fe7
name: tmpka60e8y5
sha1: 8890620df0dd7f09f68f033539dde1899ec45398
sha256: 79c23139b61e26efe876675813fd82ba5f7738f9262822843517cdfcebee15ba
sha512: feefaea47545c98e7f09b8487542d9bbd97460455f66d91f1d64cf792dd75d16f907284829c5309e762ba17324a29e9110936666378590ba778c117751fc19b3
ssdeep: 12288:btlQB2wwLHqpVxTdniX67Zv6KOJYkfgn6ggKy/cmV:bO2wwTk267wKkfg93mP
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.ahmm also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetectVM.malwareB
MicroWorld-eScanTrojan.GenericKDZ.67972
FireEyeGeneric.mg.3cc733045cefde5e
McAfeeW32/PinkSbot-GW!3CC733045CEF
ALYacTrojan.GenericKDZ.67972
CylanceUnsafe
K7AntiVirusRiskware ( 0040eff71 )
BitDefenderTrojan.GenericKDZ.67972
K7GWRiskware ( 0040eff71 )
Cybereasonmalicious.df0dd7
Invinceaheuristic
BitDefenderThetaGen:NN.ZexaF.34128.OI1@aWR4Lufj
ESET-NOD32a variant of Win32/GenKryptik.EMPU
APEXMalicious
AvastWin32:DangerousSig [Trj]
GDataTrojan.GenericKDZ.67972
KasperskyTrojan.Win32.Zenpak.ahmm
Endgamemalicious (high confidence)
EmsisoftTrojan.GenericKDZ.67972 (B)
F-SecureHeuristic.HEUR/AGEN.1118848
VIPRETrojan.Win32.Generic.pak!cobra
TrendMicroBackdoor.Win32.QAKBOT.SME
Trapminemalicious.high.ml.score
SophosTroj/Qbot-FS
AviraHEUR/AGEN.1118848
Antiy-AVLGrayWare/Win32.Kryptik.ehls
ArcabitTrojan.Generic.D10984
AhnLab-V3Trojan/Win32.Kryptik.R340774
ZoneAlarmTrojan.Win32.Zenpak.ahmm
MicrosoftTrojan:Win32/Wacatac.C!ml
CynetMalicious (score: 85)
Acronissuspicious
VBA32BScope.TrojanRansom.Shade
MAXmalware (ai score=81)
Ad-AwareTrojan.GenericKDZ.67972
MalwarebytesBackdoor.Qbot
PandaTrj/GdSda.A
RisingTrojan.Kryptik!1.C745 (RDMK:cmRtazoHGS1FklqEWOjyrfG4XCjI)
SentinelOneDFI – Malicious PE
eGambitPE.Heur.InvalidSig
FortinetW32/Cridex.VHO!tr
AVGWin32:DangerousSig [Trj]
CrowdStrikewin/malicious_confidence_80% (D)

How to remove Trojan.Win32.Zenpak.ahmm virus?

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.ahmm 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.ahmm 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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