BAT/KillAll.NBJ
Matthew Alvarez
Updated on February 28, 2026
What is BAT/KillAll.NBJ infection?
In this post you will find concerning the definition of BAT/KillAll.NBJ and also its adverse impact on your computer. Such ransomware are a kind of malware that is elaborated by on the internet fraudulences to demand paying the ransom money by a target.
In the majority of the cases, BAT/KillAll.NBJ infection will certainly instruct its targets to initiate funds transfer for the objective of reducing the effects of the modifications that the Trojan infection has actually introduced to the target’s tool.
BAT/KillAll.NBJ Summary
These modifications can be as follows:
- A process created a hidden window;
- Uses Windows utilities for basic functionality;
- 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.
- 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.
- 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 documents situated on the target’s hard disk drive — so the victim can no more make use of the data;
- Preventing normal 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.
| z.whorecord.xyz | BehavesLike.Win32.Ransom.mh |
| a.tomx.xyz | BehavesLike.Win32.Ransom.mh |
BAT/KillAll.NBJ
The most common channels through which BAT/KillAll.NBJ Ransomware Trojans are injected are:
- By means of phishing emails;
- As a consequence of customer ending up on a resource that holds a harmful software application;
As quickly as the Trojan is effectively injected, it will either cipher the information on the victim’s PC or avoid the gadget from functioning in a correct way – while also placing a ransom note that discusses the demand for the victims to impact the repayment for the objective of decrypting the documents or bring back the data system back to the first condition. In a lot of circumstances, the ransom money note will certainly turn up when the customer restarts the PC after the system has currently been damaged.
BAT/KillAll.NBJ distribution channels.
In various corners of the globe, BAT/KillAll.NBJ expands by jumps as well as bounds. Nevertheless, the ransom notes and tricks of obtaining the ransom quantity might vary relying on certain neighborhood (regional) settings. The ransom notes as well as methods of obtaining the ransom money amount might vary depending on particular neighborhood (regional) settings.
For example:
Faulty informs regarding unlicensed software.
In particular areas, the Trojans frequently wrongfully report having spotted some unlicensed applications allowed on the victim’s tool. The sharp after that requires the customer to pay the ransom.
Faulty declarations regarding unlawful web content.
In nations where software application piracy is much less popular, this method is not as reliable for the cyber frauds. Additionally, the BAT/KillAll.NBJ popup alert may falsely declare to be stemming from a police establishment and also will certainly report having located youngster pornography or other prohibited data on the gadget.
BAT/KillAll.NBJ popup alert might incorrectly declare to be acquiring from a legislation enforcement organization and will certainly report having located kid pornography or other illegal data on the gadget. The alert will in a similar way contain a requirement for the individual to pay the ransom money.
Technical details
File Info:
crc32: 1EF9C637md5: 8a439d8cdcd290d0504125785b7d9efcname: 8A439D8CDCD290D0504125785B7D9EFC.mlwsha1: 4d2b7f93658cf5f0879164eacab63abb25c9833dsha256: 9b78b76e75d348d30d618a1d3b86f93743a040a6c763b22dfebce9e40316585fsha512: 0b8034546c77370588a8f3526c9c0561f82fd82f8aa80ef82faae9b4d156060d2a10c5dd87e62893028309ddcf4e1cb3c6d593c23b3bc110fd994a860312137essdeep: 1536:Y7f9h0UPJP/CpICdikMLMLv5PFNg1qrX+VIOlnToIfrgIxW:2liUPXC8k1nJrX+fNTBfXotype: PE32 executable (GUI) Intel 80386, for MS WindowsVersion Info:
0: [No Data]
BAT/KillAll.NBJ also known as:
| GridinSoft | Trojan.Ransom.Gen |
| Bkav | W32.AIDetect.malware1 |
| K7AntiVirus | Riskware ( 0040eff71 ) |
| Elastic | malicious (high confidence) |
| Cynet | Malicious (score: 100) |
| CAT-QuickHeal | PUA.BitcoinminerPMF.S17319620 |
| ALYac | Trojan.GenericKD.46276709 |
| Cylance | Unsafe |
| Sangfor | Trojan.Win32.Save.a |
| CrowdStrike | win/malicious_confidence_90% (W) |
| K7GW | Riskware ( 0040eff71 ) |
| Cybereason | malicious.3658cf |
| Cyren | W32/Trojan.IUNU-0892 |
| Symantec | ML.Attribute.HighConfidence |
| ESET-NOD32 | BAT/KillAll.NBJ |
| Zoner | Trojan.Win32.73853 |
| APEX | Malicious |
| Avast | FileRepMalware |
| Kaspersky | HEUR:Trojan.Win32.KillFiles |
| BitDefender | Trojan.GenericKD.46276709 |
| MicroWorld-eScan | Trojan.GenericKD.46276709 |
| Ad-Aware | Trojan.GenericKD.46276709 |
| Sophos | Generic PUA EN (PUA) |
| McAfee-GW-Edition | BehavesLike.Win32.Ransom.mh |
| FireEye | Generic.mg.8a439d8cdcd290d0 |
| Emsisoft | Trojan.GenericKD.46276709 (B) |
| Jiangmin | Trojan.PowerShell.ev |
| Webroot | W32.Trojan.Gen |
| Microsoft | Trojan:Win32/Tiggre!rfn |
| Gridinsoft | Trojan.Win32.CoinMiner.vb!s1 |
| AegisLab | Trojan.Win32.KillFiles.4!c |
| GData | Win32.Trojan.PSE.1QE286O |
| TACHYON | Trojan/W32.Agent.88576.XX |
| Acronis | suspicious |
| McAfee | Artemis!8A439D8CDCD2 |
| MAX | malware (ai score=81) |
| Malwarebytes | RiskWare.BitCoinMiner |
| TrendMicro-HouseCall | TROJ_GEN.R005H07E921 |
| Rising | Trojan.KillFiles!8.6C1 (CLOUD) |
| Ikarus | Trojan.BAT.KillAll |
| MaxSecure | Trojan.Malware.300983.susgen |
| Fortinet | PossibleThreat.PALLASNET.H |
| AVG | FileRepMalware |
| Paloalto | generic.ml |
How to remove BAT/KillAll.NBJ virus?
There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft">2.
Download GridinSoft Anti-Malware.
You can download GridinSoft Anti-Malware by clicking the button below:
Download GridinSoft Anti-MalwareRun 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.
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.
Press “Install” button.
Once installed, Anti-Malware will automatically run.
Wait for the Anti-Malware scan to complete.
GridinSoft Anti-Malware will automatically start scanning your system for BAT/KillAll.NBJ 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.
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.
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 Anti-Malware
If the guide doesn’t help you to remove BAT/KillAll.NBJ you can always ask me in the comments for getting help.
References
- GridinSoft Anti-Malware Review from HowToFix site:
- More information about GridinSoft products:
