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

What is BAT/KillFiles.NOB infection?

In this article you will find regarding the interpretation of BAT/KillFiles.NOB and also its adverse 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 victim.

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Most of the situations, BAT/KillFiles.NOB infection will certainly advise its sufferers to launch funds transfer for the objective of reducing the effects of the amendments that the Trojan infection has actually introduced to the sufferer’s gadget.

BAT/KillFiles.NOB Summary

These adjustments can be as adheres to:

  • Attempts to repeatedly call a single API many times in order to delay analysis time;
  • Exhibits possible ransomware file modification behavior;
  • Creates a hidden or system file;
  • Network activity detected but not expressed in API logs;
  • Clears Windows events or logs;
  • Anomalous binary characteristics;
  • Ciphering the files located on the sufferer’s hard disk drive — so the sufferer can no longer make use of the data;
  • Preventing normal access to the victim’s workstation;


One of the most regular channels whereby BAT/KillFiles.NOB are infused are:

  • By methods of phishing e-mails;
  • As a repercussion of customer winding up on a resource that hosts a malicious software application;

As quickly as the Trojan is efficiently infused, it will either cipher the data on the target’s PC or prevent the gadget from operating in a proper way – while additionally putting a ransom note that discusses the requirement for the victims to effect the payment for the purpose of decrypting the papers or restoring the file system back to the first problem. In a lot of instances, the ransom money note will certainly show up when the customer reboots the PC after the system has already been damaged.

BAT/KillFiles.NOB circulation channels.

In different edges of the world, BAT/KillFiles.NOB expands by leaps as well as bounds. Nonetheless, the ransom money notes and techniques of obtaining the ransom money quantity might vary depending upon certain neighborhood (local) settings. The ransom money notes as well as tricks of extorting the ransom quantity might vary depending on specific regional (regional) setups.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software.

    In particular areas, the Trojans often wrongfully report having actually found some unlicensed applications made it possible for on the victim’s device. The sharp then demands the customer to pay the ransom.

    Faulty statements about prohibited content.

    In countries where software piracy is much less preferred, this method is not as reliable for the cyber fraudulences. Additionally, the BAT/KillFiles.NOB popup alert might falsely assert to be stemming from a police institution and will report having located youngster pornography or various other illegal information on the gadget.

    BAT/KillFiles.NOB popup alert might falsely declare to be acquiring from a legislation enforcement organization and will report having located kid porn or various other unlawful information on the device. The alert will likewise contain a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: 38B6F5D0
md5: 37ab838dfbd17afe26c93efa5aa678be
name: 37AB838DFBD17AFE26C93EFA5AA678BE.mlw
sha1: 3930efd00aeb2d4de9d6982a0493591ced4f7b55
sha256: 308c8a727098ed5322f4978e92106c0130aa74010428e77504fdb48eb5a5db75
sha512: 769e952779a4a2a7ff0171819d8267152bb24ac047729fc850c5ffb5d0062e496df59bb496d43a6546997c516aa39d161288851b174e75de7e04c9d35de98c20
ssdeep: 6144:E5aWbksiNTB7SMEPRvT1Rjja4su15S2CV:E5atNTxSxPBTrCV
type: PE32 executable (console) Intel 80386, for MS Windows

Version Info:

0: [No Data]

BAT/KillFiles.NOB also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Riskware ( 0040eff71 )
Lionic Trojan.Win32.KillFiles.4!c
Cylance Unsafe
CrowdStrike win/malicious_confidence_100% (W)
K7GW Riskware ( 0040eff71 )
Cybereason malicious.00aeb2
Symantec ML.Attribute.HighConfidence
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky UDS:Trojan.Win32.KillFiles
Alibaba Trojan:Win32/KillFiles.1a13d4d8
Sophos Mal/Generic-S
Comodo Malware@#1777zt08rempv
BitDefenderTheta Gen:NN.ZexaF.34142.CuW@a896Zcf
SentinelOne Static AI – Malicious PE
Microsoft Ransom:Win32/Genasom
ZoneAlarm HEUR:Trojan.Win32.KillFiles
AhnLab-V3 Malware/Win32.Generic.C2884393
McAfee Artemis!37AB838DFBD1
MAX malware (ai score=99)
Malwarebytes Malware.Heuristic.1008
Panda Trj/Genetic.gen
Rising [email protected] (RDML:fGAsrERm2EeqvpAPnOeftA)
Yandex Trojan.KillFiles!19c6VqGCgKI
Ikarus Trojan-Ransom.Rokku
MaxSecure Trojan.Malware.300983.susgen

How to remove BAT/KillFiles.NOB virus?

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.NOB 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.NOB you can always ask me in the comments for getting help.

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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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