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

What is Win32/Injector.DHHN infection?

In this post you will certainly discover concerning the interpretation of Win32/Injector.DHHN and also its unfavorable impact on your computer system. Such ransomware are a form of malware that is clarified by online frauds to demand paying the ransom money by a sufferer.

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In the majority of the instances, Win32/Injector.DHHN ransomware will certainly advise its victims to initiate funds move for the function of reducing the effects of the changes that the Trojan infection has actually introduced to the target’s gadget.

Win32/Injector.DHHN 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 with CreateRemoteThread in a remote process;
  • Attempts to connect to a dead IP:Port (1 unique times);
  • 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.
  • A process attempted to delay the analysis task.;
  • Starts servers listening on;
  • Code injection with CreateRemoteThread in a remote process;
  • 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
  • Exhibits behavior characteristic of Pony malware;
  • Collects information about installed applications;
  • Operates on local firewall’s policies and settings;
  • Attempts to disable UAC.

    User Account Control or just UAC is a part of the Windows security system which prevents apps from making unwanted changes on PC.

    UAC includes several technologies 1:

    • File and egistry Virtualization;
    • Same-desktop Elevation;
    • Filtered Token;
    • User Interface Privilege Isolation;
    • Protected Mode Internet Explorer;
    • Installer Detection;
  • Harvests credentials from local FTP client softwares;
  • Attempts to modify or disable Security Center warnings;
  • Attempts to block SafeBoot use by removing registry keys;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to modify Explorer settings to prevent hidden files from being displayed;
  • Ciphering the files located on the victim’s hard drive — so the target can no more utilize the data;
  • Preventing regular accessibility to the sufferer’s workstation;
Similar behavior
Related domains Win32/Trojan.Ransom.88f Win32/Trojan.Ransom.88f


One of the most normal channels where Win32/Injector.DHHN Ransomware Trojans are infused are:

  • By means of phishing e-mails;
  • As a consequence of user ending up on a source that holds a harmful software program;

As soon as the Trojan is effectively injected, it will certainly either cipher the data on the sufferer’s computer or avoid the gadget from operating in a correct manner – while additionally placing a ransom note that points out the demand for the victims to impact the settlement for the purpose of decrypting the files or bring back the data system back to the preliminary problem. In the majority of instances, the ransom note will turn up when the customer reboots the COMPUTER after the system has currently been damaged.

Win32/Injector.DHHN circulation networks.

In different edges of the globe, Win32/Injector.DHHN grows by leaps and also bounds. Nonetheless, the ransom money notes as well as techniques of obtaining the ransom amount might differ depending upon particular regional (regional) settings. The ransom money notes and techniques of extorting the ransom money amount may differ depending on particular local (local) settings.

Ransomware injection

For instance:

    Faulty signals about unlicensed software program.

    In certain areas, the Trojans typically wrongfully report having actually discovered some unlicensed applications enabled on the target’s gadget. The alert after that demands the customer to pay the ransom money.

    Faulty declarations regarding prohibited material.

    In nations where software program piracy is less preferred, this method is not as effective for the cyber fraudulences. Additionally, the Win32/Injector.DHHN popup alert may wrongly assert to be originating from a law enforcement institution as well as will certainly report having situated child pornography or various other illegal information on the device.

    Win32/Injector.DHHN popup alert may falsely declare to be acquiring from a legislation enforcement organization and also will certainly report having located child porn or various other unlawful data on the device. The alert will in a similar way consist of a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 2285FE54
md5: cdd194c60523d9ea4eb57c98aa940613
name: CDD194C60523D9EA4EB57C98AA940613.mlw
sha1: 239607b0d209f22659d2d0f0377ec7c1b2ce4e38
sha256: 61c33a9b3fbc7ad4b5d8a2d615895b26258cada79ef0c8c7b20f50b756b441be
sha512: a001b940c5f4fedd25d875e3990e2b1f7966a4f04d60228151801318ba15898a5a0c189874b522bc864f4c0f1614459d487dbca77422cb13b5599f1c78f0c063
ssdeep: 3072:wKp6m+EhaxwBRH/WIA5sXYQH+G71gmud6+o0RgaF6fN6swxNpAFn77:LXaxiRD+GBgmc6TQrIfIbKn
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0409 0x04b0
InternalName: Nicholai
FileVersion: 1.00
CompanyName: Sharp
ProductName: Spiraea2
ProductVersion: 1.00
FileDescription: Midolla Parda Liccanti
OriginalFilename: Nicholai.exe

Win32/Injector.DHHN also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectGBM.malware.01
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Heur.PonyStealer.wm0@dSDbeQmi
Qihoo-360 Win32/Trojan.Ransom.88f
McAfee Fareit-FGY!CDD194C60523
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
AegisLab Trojan.Win32.Blocker.j!c
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 0055e3991 )
BitDefender Gen:Heur.PonyStealer.wm0@dSDbeQmi
K7GW Trojan ( 0055e3991 )
Cybereason malicious.60523d
BitDefenderTheta Gen:NN.ZevbaF.34590.wm0@aSDbeQmi
Cyren W32/Kryptik.ATC.gen!Eldorado
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Packer.VbPack-0-6334882-0
Kaspersky Trojan-Ransom.Win32.Blocker.jtpw
Alibaba Ransom:Win32/Blocker.16c2a2ef
NANO-Antivirus Trojan.Win32.Blocker.eihham
Rising Trojan.Injector!1.B459 (CLASSIC)
Ad-Aware Gen:Heur.PonyStealer.wm0@dSDbeQmi
Emsisoft Gen:Heur.PonyStealer.wm0@dSDbeQmi (B)
Comodo Malware@#2t7eohon3y14m
F-Secure Heuristic.HEUR/AGEN.1130098
DrWeb Trojan.Siggen6.18140
TrendMicro TrojanSpy.Win32.FAREIT.SMAL01.hp
Sophos Mal/Generic-R + Mal/FareitVB-G
Ikarus Trojan.Win32.Injector
Jiangmin Trojan.Blocker.gdx
Avira HEUR/AGEN.1130098
Antiy-AVL Trojan[Ransom]/Win32.Blocker
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft PWS:Win32/Fareit
Arcabit Trojan.PonyStealer.EA8AF1
ZoneAlarm Trojan-Ransom.Win32.Blocker.jtpw
GData Gen:Heur.PonyStealer.wm0@dSDbeQmi
Cynet Malicious (score: 85)
AhnLab-V3 Win-Trojan/VBKrypt.RP.X1764
VBA32 TScope.Trojan.VB
ALYac Gen:Heur.PonyStealer.wm0@dSDbeQmi
MAX malware (ai score=80)
Malwarebytes Generic.Malware/Suspicious
Panda Trj/GdSda.A
ESET-NOD32 a variant of Win32/Injector.DHHN
TrendMicro-HouseCall TrojanSpy.Win32.FAREIT.SMAL01.hp
Tencent Win32.Virus.Bp-sality.Zlju
Yandex Trojan.Blocker!n3QHiQOcb4k
SentinelOne Static AI – Suspicious PE
eGambit Unsafe.AI_Score_100%
Fortinet W32/Injector.EAYD!tr
AVG Win32:Malware-gen
CrowdStrike win/malicious_confidence_100% (D)

How to remove Win32/Injector.DHHN 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 GridinSoft2

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft3.

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 Win32/Injector.DHHN 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 Win32/Injector.DHHN you can always ask me in the comments for getting help.

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  1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server
  2. GridinSoft Anti-Malware Review from HowToFix site:
  3. More information about GridinSoft products:

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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