What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the BAT/KillAV.NBD malware detection usually means that your PC is in big danger. This computer virus can correctly be named as ransomware – type of malware which ciphers your files and forces you to pay for their decryption. Deleteing it requires some peculiar steps that must be taken as soon as possible.
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BAT/KillAV.NBD detection is a malware detection you can spectate in your system. It generally appears after the preliminary activities on your PC – opening the suspicious email, clicking the banner in the Internet or setting up the program from dubious sources. From the second it appears, you have a short time to act until it starts its harmful action. And be sure – it is better not to wait for these malicious things.

What is BAT/KillAV.NBD virus?

BAT/KillAV.NBD is ransomware-type malware. It searches for the files on your disk drives, encrypts it, and then asks you to pay the ransom for receiving the decryption key. Besides making your files locked, this virus additionally does a ton of harm to your system. It alters the networking settings in order to avoid you from reading the removal guidelines or downloading the antivirus. In some cases, BAT/KillAV.NBD can additionally prevent the launching of anti-malware programs.

BAT/KillAV.NBD Summary

Summarizingly, BAT/KillAV.NBD virus actions in the infected system are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Executed a command line with /C or /R argument to terminate command shell on completion which can be used to hide execution;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Possible date expiration check, exits too soon after checking local time;
  • Guard pages use detected – possible anti-debugging.;
  • Dynamic (imported) function loading detected;
  • The binary contains an unknown PE section name indicative of packing;
  • Authenticode signature is invalid;
  • Uses Windows utilities for basic functionality;
  • Uses Windows utilities for basic functionality;
  • Attempts to repeatedly call a single API many times in order to delay analysis time;
  • Deletes executed files from disk;
  • Disables host Power options (shutdown, logoff, lock, change password);
  • Attempts to disable or modify the Run command from the Start menu and the New Task (Run) command from Task Manager;
  • Attempts to disable UAC;
  • Uses suspicious command line tools or Windows utilities;
  • Encrypting the documents located on the target’s disk drives — so the victim cannot check these files;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of anti-malware apps

Ransomware has actually been a horror story for the last 4 years. It is hard to imagine a more damaging virus for both individuals and organizations. The algorithms utilized in BAT/KillAV.NBD (generally, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need more time than our galaxy actually exists, and possibly will exist. But that malware does not do all these horrible things immediately – it can take up to a few hours to cipher all of your documents. Thus, seeing the BAT/KillAV.NBD detection is a clear signal that you have to begin the clearing process.

Where did I get the BAT/KillAV.NBD?

Standard methods of BAT/KillAV.NBD injection are standard for all other ransomware variants. Those are one-day landing websites where victims are offered to download and install the free program, so-called bait emails and hacktools. Bait emails are a quite new method in malware distribution – you get the email that mimics some standard notifications about deliveries or bank service conditions changes. Within the email, there is a corrupted MS Office file, or a link which leads to the exploit landing site.

Malicious email spam

Malicious email message. This one tricks you to open the phishing website.

Preventing it looks fairly uncomplicated, however, still demands a lot of focus. Malware can hide in different spots, and it is better to prevent it even before it goes into your PC than to rely upon an anti-malware program. General cybersecurity awareness is just an essential thing in the modern-day world, even if your interaction with a PC stays on YouTube videos. That may keep you a great deal of money and time which you would certainly spend while looking for a fix guide.

BAT/KillAV.NBD malware technical details

File Info:

name: 0AEFC0F6731A34710669.mlw
path: /opt/CAPEv2/storage/binaries/d166925276bf45a88e1fc84c7d4065eb6eb603bdcdf0363b79baad3e0e4b0945
crc32: 8362A78A
md5: 0aefc0f6731a34710669c18b1948e51e
sha1: 57ae2c8eed8555fce498c044ce6de94973137658
sha256: d166925276bf45a88e1fc84c7d4065eb6eb603bdcdf0363b79baad3e0e4b0945
sha512: 7143bc9391f2021bdc054f7d0906a1ef756b9b928c28c40ba5ac25a01e5a226d038107a8035eebc5a5b3758154347506dd9de5abfbf91fb07e6279b77cc3b8c3
ssdeep: 1536:W7fbN3eEDhDPA/pICdUkbBtW7upvaLU0bI5taxKo0IOlnToIfDwkbPu+0b93eoTO:s7DhdC6kzWypvaQ0FxyNTBfDxbmhROaO
type: PE32 executable (console) Intel 80386, for MS Windows
tlsh: T1EE145A41B2D141B7E5E30B3000A5AF6AD7326E245B3298D7D348FB769932FD05E392E9
sha3_384: f6d25b1294676c0807125e2d03267041558adaeae705143567708fa8ba7a5579239b1b24986bff3b2f9b47801a107cda
ep_bytes: 68ac00000068000000006868804100e8
timestamp: 2019-07-30 08:52:45

Version Info:

0: [No Data]

BAT/KillAV.NBD also known as:

Bkav W32.AIDetect.malware2
MicroWorld-eScan DeepScan:Generic.Ransom.AmnesiaE.696A36F5
CAT-QuickHeal Trojan.GenericPMF.S3697681
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
Symantec ML.Attribute.HighConfidence
Elastic malicious (high confidence)
APEX Malicious
Kaspersky HEUR:Trojan.BAT.Assoc.gen
BitDefender DeepScan:Generic.Ransom.AmnesiaE.696A36F5
Avast BV:Agent-AAX [Trj]
Ad-Aware DeepScan:Generic.Ransom.AmnesiaE.696A36F5
VIPRE DeepScan:Generic.Ransom.AmnesiaE.696A36F5
McAfee-GW-Edition BehavesLike.Win32.Generic.ct
Sophos Generic ML PUA (PUA)
Ikarus Trojan.BAT.Agent
GData DeepScan:Generic.Ransom.AmnesiaE.696A36F5
Antiy-AVL Trojan/Generic.ASMalwS.5174
Arcabit DeepScan:Generic.Ransom.AmnesiaE.696A36F5
ZoneAlarm HEUR:Trojan.BAT.Assoc.gen
Microsoft Ransom:Win32/LockBit.PA!MTB
Cynet Malicious (score: 100)
ALYac DeepScan:Generic.Ransom.AmnesiaE.696A36F5
MAX malware (ai score=86)
Malwarebytes Malware.Heuristic.1008
Rising [email protected] (RDML:DDt7ySX9/C9397ncoXX6Xw)
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.300983.susgen
BitDefenderTheta Gen:NN.ZexaF.34582.muW@ayxH3Jp
AVG BV:Agent-AAX [Trj]
Panda Trj/Genetic.gen

How to remove BAT/KillAV.NBD?

BAT/KillAV.NBD malware is extremely hard to delete by hand. It stores its data in a variety of places throughout the disk, and can get back itself from one of the parts. In addition, numerous modifications in the windows registry, networking settings and Group Policies are pretty hard to find and revert to the initial. It is better to utilize a specific app – exactly, an anti-malware tool. GridinSoft Anti-Malware will definitely fit the best for virus removal objectives.

Why GridinSoft Anti-Malware? It is very lightweight and has its detection databases updated nearly every hour. In addition, it does not have such problems and weakness as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware suitable for eliminating malware of any kind.

Remove the viruses with GridinSoft Anti-Malware

  • Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
  • Gridinsoft Anti-Malware during the scan process

  • Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
  • GridinSoft Anti-Malware scan results

  • When the scan is over, you may choose the action for each detected virus. For all files of [SHORT_NAME] the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
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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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