Win32/Injector.DNAV

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

What is Win32/Injector.DNAV infection?

In this article you will find regarding the interpretation of Win32/Injector.DNAV and also its negative effect on your computer. Such ransomware are a type of malware that is clarified by on-line scams to demand paying the ransom by a victim.

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Most of the instances, Win32/Injector.DNAV ransomware will advise its sufferers to launch funds move for the purpose of neutralizing the modifications that the Trojan infection has actually introduced to the victim’s tool.

Win32/Injector.DNAV Summary

These modifications 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);
  • 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;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Unconventionial language used in binary resources: Czech;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Executed a process and injected code into it, probably while unpacking;
  • Attempts to delete volume shadow copies;
  • 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 possible ransomware file modification behavior;
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the files located on the victim’s hard disk — so the target can no longer utilize the information;
  • Preventing routine access to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Win32/Injector.DNAV

The most normal networks through which Win32/Injector.DNAV are infused 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 repercussion of customer winding up on a source that holds a destructive software program;

As soon as the Trojan is efficiently injected, it will certainly either cipher the information on the target’s computer or prevent the device from operating in a correct fashion – while additionally placing a ransom note that mentions the demand for the sufferers to effect the payment for the objective of decrypting the files or bring back the documents system back to the first problem. In many instances, the ransom note will certainly come up when the customer reboots the COMPUTER after the system has actually already been harmed.

Win32/Injector.DNAV distribution channels.

In numerous edges of the globe, Win32/Injector.DNAV grows by jumps as well as bounds. However, the ransom notes and techniques of obtaining the ransom money quantity might vary depending on specific neighborhood (regional) settings. The ransom notes and methods of obtaining the ransom amount may differ depending on specific local (regional) setups.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software application.

    In certain areas, the Trojans often wrongfully report having actually identified some unlicensed applications made it possible for on the victim’s device. The sharp after that demands the user to pay the ransom money.

    Faulty statements regarding prohibited content.

    In countries where software application piracy is much less preferred, this method is not as effective for the cyber scams. Conversely, the Win32/Injector.DNAV popup alert might incorrectly declare to be originating from a police organization as well as will certainly report having situated kid porn or various other illegal data on the device.

    Win32/Injector.DNAV popup alert might falsely assert to be obtaining from a law enforcement establishment and also will certainly report having situated child pornography or various other illegal information on the tool. The alert will likewise contain a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 68DE930C
md5: b902e1ed91ea2edc47c197086f4276c6
name: B902E1ED91EA2EDC47C197086F4276C6.mlw
sha1: 8d5fad3caf3c4cbda709e6dde6bfd65fa0c1068a
sha256: 273813ffdd59718c61ea957b7736fccc54b269aa9202c0406c2baa98764dc7d6
sha512: f2cc0698f16eddc5cb243b94395b021120a1ef5d37426502c599e25410636ea4f18cfe5a12fc3f60ee059109fc886e18d71ecbdf1dfab81f971b097f6db0c9bd
ssdeep: 3072:sZXeyh/MZyeBTTn7h0E/vkvDyJM2xFaUsMcd2+dbhcetB4RUVcnctiPeYwy:sXNeBTniE/c6M1bjc+3cBGcTeYwy
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0409 0x04b0
LegalCopyright: Are you learning English or do you want to improve your English language skills? Our free eBooks can help you. The books are aimed at beginners and ...
InternalName: Svenska1
FileVersion: 1.00.0062
CompanyName: Flash x07ant to improve your English quickly? Here are 10 fun and easy English books that you will love to read!
ProductName: Revised
ProductVersion: 1.00.0062
FileDescription: Books shelved as english: Harry Potter and the Sorcerer's Stone by J.K. Rowling, Animal Farm by George Orwell, Pride and Prejudice by Jane Austen, Harry ...
OriginalFilename: Svenska1.exe

Win32/Injector.DNAV also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
MicroWorld-eScan Gen:Variant.Symmi.39043
FireEye Generic.mg.b902e1ed91ea2edc
McAfee Artemis!B902E1ED91EA
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 00509f191 )
BitDefender Gen:Variant.Symmi.39043
K7GW Trojan ( 00509f191 )
CrowdStrike win/malicious_confidence_90% (D)
BitDefenderTheta Gen:NN.ZevbaF.34608.om3@aueWvwaG
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Injector.DNAV
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Crusis.blb
Alibaba Ransom:Win32/Crusis.00a6ede8
NANO-Antivirus Trojan.Win32.Crusis.evogsv
AegisLab Trojan.Multi.Generic.4!c
Rising Ransom.Crusis!8.5724 (CLOUD)
Ad-Aware Gen:Variant.Symmi.39043
Emsisoft Gen:Variant.Symmi.39043 (B)
Zillya Trojan.Crusis.Win32.2236
McAfee-GW-Edition BehavesLike.Win32.Sality.dc
Sophos Mal/TrickVB-A
SentinelOne Static AI – Malicious PE
Avira TR/AD.CrysisRansom.xxleo
MAX malware (ai score=96)
Microsoft Ransom:Win32/Wadhrama.A!rsm
GData Gen:Variant.Symmi.39043
Cynet Malicious (score: 85)
VBA32 Trojan-Ransom.Crusis
ALYac Gen:Variant.Symmi.39043
Panda Trj/CI.A
Tencent Win32.Trojan.Crusis.Pdvm
Yandex Trojan.Injector!0f4CaCRAZTA
Ikarus Trojan.Win32.Injector
eGambit Unsafe.AI_Score_100%
Fortinet W32/Injector.DNJN!tr
AVG Win32:Malware-gen
Cybereason malicious.d91ea2
Paloalto generic.ml
Qihoo-360 Win32/Ransom.CrySiS.HwMAar8A

How to remove Win32/Injector.DNAV ransomware?

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 Win32/Injector.DNAV 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 Win32/Injector.DNAV 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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