VBS/Agent.NDW

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

What is VBS/Agent.NDW infection?

In this short article you will find about the definition of VBS/Agent.NDW as well as its adverse influence on your computer system. Such ransomware are a type of malware that is clarified by on the internet frauds to require paying the ransom money by a target.

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Most of the instances, VBS/Agent.NDW ransomware will instruct its victims to launch funds transfer for the function of reducing the effects of the modifications that the Trojan infection has presented to the sufferer’s tool.

VBS/Agent.NDW Summary

These adjustments can be as adheres to:

  • Injection (inter-process);
  • Injection with CreateRemoteThread in a remote process;
  • 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.
  • Detected script timer window indicative of sleep style evasion;
  • 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.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • A scripting utility was executed;
  • Uses Windows utilities for basic functionality;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • 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
  • Stores JavaScript or a script command in the registry, likely for persistence or configuration;
  • 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.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Ciphering the documents situated on the victim’s hard disk — so the sufferer can no longer use the data;
  • Preventing routine access to the sufferer’s workstation;
Similar behavior
Related domains
z.whorecord.xyzRansom.Win32.Blocker.8
a.tomx.xyzRansom.Win32.Blocker.8

VBS/Agent.NDW

The most typical channels through which VBS/Agent.NDW Trojans are infused are:

  • By means of phishing emails;
  • As an effect of user winding up on a resource that hosts a malicious software program;

As quickly as the Trojan is effectively infused, it will either cipher the data on the victim’s computer or prevent the tool from working in an appropriate way – while also placing a ransom note that mentions the requirement for the targets to impact the repayment for the objective of decrypting the documents or restoring the data system back to the preliminary problem. In the majority of instances, the ransom note will show up when the client reboots the PC after the system has actually already been harmed.

VBS/Agent.NDW circulation channels.

In various edges of the globe, VBS/Agent.NDW expands by jumps and bounds. Nevertheless, the ransom notes as well as techniques of obtaining the ransom money amount might differ relying on specific regional (local) setups. The ransom money notes and also tricks of obtaining the ransom money amount might differ depending on specific neighborhood (regional) setups.

Ransomware injection

For example:

    Faulty signals regarding unlicensed software application.

    In specific locations, the Trojans usually wrongfully report having actually identified some unlicensed applications enabled on the sufferer’s tool. The alert then requires the user to pay the ransom.

    Faulty declarations regarding prohibited content.

    In countries where software program piracy is less preferred, this technique is not as effective for the cyber fraudulences. Alternatively, the VBS/Agent.NDW popup alert may incorrectly declare to be stemming from a law enforcement organization and also will certainly report having located child pornography or various other unlawful information on the device.

    VBS/Agent.NDW popup alert may falsely assert to be obtaining from a regulation enforcement institution as well as will certainly report having situated kid pornography or various other unlawful information on the device. The alert will similarly contain a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: 2CE4B45D
md5: b929fc62db2b3c8cc6a03063767be125
name: B929FC62DB2B3C8CC6A03063767BE125.mlw
sha1: e21a8d3de64b145aeb66e8c56f53fc24fd797ba5
sha256: 3b31c84f3702d117aded83182c96eff7e6cd8191345c9486b2dfe617078f26ec
sha512: 4602f6d4245e75e2d0b2f0af0f8b6d71000a02c8e207bbbec209642ebf43ab504bf65e0ffab08a3a2b18b1d74bf916ee551c836dd532f186c3be4a2ad2e8d397
ssdeep: 12288:Fs0jj89l3Wz0F8IhrZF0fkzNwhtf8AsYOJ:F3jw9lWzw8uz6hDGJ
type: MS-DOS executable, MZ for MS-DOS

Version Info:

LegalCopyright:
InternalName:
FileVersion: 1.1.21.03
ProductName:
ProductVersion: 1.1.21.03
FileDescription:
OriginalFilename:
Translation: 0x0409 0x04b0

VBS/Agent.NDW also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
MicroWorld-eScanTrojan.GenericKD.2646455
McAfeeArtemis!B929FC62DB2B
CylanceUnsafe
ZillyaTrojan.Blocker.Win32.62455
AegisLabTrojan.Win32.Blocker.j!c
SangforRansom.Win32.Blocker.8
K7AntiVirusTrojan ( 004c2b1c1 )
BitDefenderTrojan.GenericKD.2646455
K7GWTrojan ( 004c2b1c1 )
CrowdStrikewin/malicious_confidence_60% (W)
ArcabitTrojan.Generic.D2861B7
SymantecTrojan.Dunihidrop
TrendMicro-HouseCallBKDR_BLADABINDI.YYQB
AvastWin32:Malware-gen
KasperskyTrojan-Ransom.Win32.Blocker.hneu
AlibabaRansom:Win32/Blocker.fb1cc043
NANO-AntivirusTrojan.Win32.Dwn.dvdjzv
RisingRansom.Blocker!8.12A (CLOUD)
Ad-AwareTrojan.GenericKD.2646455
SophosMal/Generic-S
VIPRETrojan.Win32.Generic!BT
TrendMicroBKDR_BLADABINDI.YYQB
McAfee-GW-EditionBehavesLike.Win32.Injector.gc
FireEyeGeneric.mg.b929fc62db2b3c8c
EmsisoftTrojan.GenericKD.2646455 (B)
IkarusWorm.VBS.Agent
JiangminTrojan.Blocker.bph
Antiy-AVLTrojan[Ransom]/Win32.Blocker
KingsoftWin32.Heur.KVMH008.a.(kcloud)
MicrosoftTrojan:Win32/Skeeyah.A!bit
ZoneAlarmTrojan-Ransom.Win32.Blocker.hneu
GDataTrojan.GenericKD.2646455
VBA32Hoax.Blocker
ALYacTrojan.GenericKD.2646455
MAXmalware (ai score=100)
MalwarebytesMalware.Heuristic.1003
PandaGeneric Suspicious
APEXMalicious
ESET-NOD32VBS/Agent.NDW
TencentWin32.Trojan.Blocker.Pepl
YandexTrojan.Blocker!PpX/V73u1jM
TACHYONTrojan/W32.Blocker.418816.E
FortinetW32/Blocker.HNEU!tr
AVGWin32:Malware-gen
Cybereasonmalicious.2db2b3
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.Blocker.HxIBJCgA

How to remove VBS/Agent.NDW 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

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 VBS/Agent.NDW 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 VBS/Agent.NDW 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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