BAT/KillFiles.NQC

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

What is BAT/KillFiles.NQC infection?

In this post you will locate about the interpretation of BAT/KillFiles.NQC as well as its unfavorable influence on your computer. Such ransomware are a type of malware that is clarified by on-line fraudulences to demand paying the ransom by a sufferer.

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In the majority of the situations, BAT/KillFiles.NQC infection will certainly instruct its victims to launch funds move for the function of counteracting the modifications that the Trojan infection has actually presented to the target’s tool.

BAT/KillFiles.NQC Summary

These alterations can be as adheres to:

  • 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.
  • 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.
  • Uses Windows utilities for basic functionality;
  • A process attempted to delay the analysis task by a long amount of time.;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • 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.
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • 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 documents located on the victim’s disk drive — so the victim can no more utilize the information;
  • Preventing regular accessibility to the victim’s workstation;

BAT/KillFiles.NQC

The most normal networks where BAT/KillFiles.NQC are infused are:

  • By means of phishing emails;
  • As a repercussion of customer winding up on a source that organizes a harmful software;

As soon as the Trojan is efficiently injected, it will either cipher the data on the target’s PC or protect against the tool from functioning in a correct way – while additionally placing a ransom money note that states the requirement for the targets to impact the repayment for the function of decrypting the files or recovering the documents system back to the initial condition. In the majority of instances, the ransom money note will certainly come up when the customer reboots the COMPUTER after the system has already been damaged.

BAT/KillFiles.NQC circulation networks.

In different edges of the globe, BAT/KillFiles.NQC grows by leaps and also bounds. Nevertheless, the ransom money notes and also tricks of obtaining the ransom money quantity might differ depending upon certain local (local) setups. The ransom money notes as well as techniques of extorting the ransom money quantity might vary depending on certain local (local) settings.

Ransomware injection

As an example:

    Faulty alerts regarding unlicensed software program.

    In particular locations, the Trojans frequently wrongfully report having found some unlicensed applications made it possible for on the victim’s gadget. The alert then requires the user to pay the ransom.

    Faulty declarations about prohibited material.

    In nations where software program piracy is less preferred, this technique is not as effective for the cyber fraudulences. Additionally, the BAT/KillFiles.NQC popup alert may wrongly claim to be stemming from a police institution and also will certainly report having situated kid pornography or various other unlawful data on the tool.

    BAT/KillFiles.NQC popup alert might falsely declare to be obtaining from a regulation enforcement establishment as well as will certainly report having located kid porn or other prohibited data on the device. The alert will in a similar way have a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: 03DC1DAC
md5: 5399db6cec65ffc708fe8de1e21f98f3
name: 5399DB6CEC65FFC708FE8DE1E21F98F3.mlw
sha1: c6fc6f7a84867e48a5fa25cc8ac87bdb55432dbb
sha256: 5ed4d63b8545d7e507aca338e94e4782cacc7db026d1685dffec74ddb08c96e6
sha512: 2b93148a882e01c880e8b17c276f0ea3282312b524a42fbd86ad073916a578b6a5495c2253c52c3be32561e2400ae17a460992273481fa1e441718d4f03e61ae
ssdeep: 1536:PT7ftfkS5g9YOms+gZcQipICdXkNDqLLZX9lItVGL++eIOlnToIfBw5Oh:PPFfHgTWmCRkGbKGLeNTBfBx
type: PE32 executable (console) Intel 80386, for MS Windows

Version Info:

FileVersion: 1.65.31.3
CompanyName: MICROSOFT
Translation: 0x0000 0x04e4

BAT/KillFiles.NQC also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0052419b1 )
Cynet Malicious (score: 100)
ALYac Gen:Trojan.Heur.fu0@xaBODib
Cylance Unsafe
K7GW Trojan ( 0052419b1 )
Cybereason malicious.cec65f
ESET-NOD32 BAT/KillFiles.NQC
Avast BV:Starter-V [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Trojan.Heur.fu0@xaBODib
MicroWorld-eScan Gen:Trojan.Heur.fu0@xaBODib
Ad-Aware Gen:Trojan.Heur.fu0@xaBODib
Sophos ML/PE-A
BitDefenderTheta AI:Packer.35FB272A1B
McAfee-GW-Edition BehavesLike.Win32.Ransom.nh
FireEye Generic.mg.5399db6cec65ffc7
Emsisoft Gen:Trojan.Heur.fu0@xaBODib (B)
eGambit Unsafe.AI_Score_97%
Microsoft Trojan:Win32/Wacatac.B!ml
Arcabit Trojan.Heur.EAD597
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Trojan.Heur.fu0@xaBODib
MAX malware (ai score=81)
Malwarebytes Malware.Heuristic.1008
Rising [email protected] (RDML:ukKy8ZE7yqlvAiTVKIT+pw)
MaxSecure Trojan.Malware.300983.susgen
AVG BV:Starter-V [Trj]

How to remove BAT/KillFiles.NQC 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 BAT/KillFiles.NQC 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 BAT/KillFiles.NQC 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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