Written by Robert Bailey

What is Trojan:Win32/VBKrypt.AC!MTB infection?

In this short article you will discover regarding the interpretation of Trojan:Win32/VBKrypt.AC!MTB and its unfavorable influence on your computer. Such ransomware are a form of malware that is clarified by on-line fraudulences to require paying the ransom money by a target.

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In the majority of the situations, Trojan:Win32/VBKrypt.AC!MTB ransomware will instruct its victims to start funds transfer for the objective of counteracting the amendments that the Trojan infection has actually presented to the victim’s device.

Trojan:Win32/VBKrypt.AC!MTB Summary

These alterations can be as follows:

  • Executable code extraction;
  • Creates RWX memory;
  • Network activity detected but not expressed in API logs;
  • Anomalous binary characteristics;
  • Ciphering the files located on the victim’s disk drive — so the victim can no more utilize the data;
  • Preventing routine access to the victim’s workstation;

Related domains: Ransom.Win32.Wacatac.oa Ransom.Win32.Wacatac.oa


One of the most regular channels through which Trojan:Win32/VBKrypt.AC!MTB Trojans are infused are:

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

As soon as the Trojan is efficiently injected, it will either cipher the data on the target’s computer or protect against the device from working in an appropriate way – while also putting a ransom note that discusses the need for the victims to effect the payment for the function of decrypting the documents or recovering the data system back to the initial problem. In the majority of circumstances, the ransom money note will certainly come up when the client reboots the PC after the system has already been harmed.

Trojan:Win32/VBKrypt.AC!MTB distribution channels.

In various corners of the globe, Trojan:Win32/VBKrypt.AC!MTB grows by leaps and bounds. Nevertheless, the ransom notes and techniques of extorting the ransom money quantity may vary depending on certain regional (regional) setups. The ransom money notes and tricks of obtaining the ransom quantity might vary depending on particular neighborhood (local) setups.

Ransomware injection

For example:

    Faulty informs regarding unlicensed software.

    In certain areas, the Trojans usually wrongfully report having detected some unlicensed applications allowed on the target’s gadget. The alert then requires the individual to pay the ransom.

    Faulty declarations concerning unlawful web content.

    In countries where software program piracy is much less popular, this approach is not as effective for the cyber scams. Alternatively, the Trojan:Win32/VBKrypt.AC!MTB popup alert may incorrectly assert to be deriving from a police establishment and will certainly report having located kid pornography or various other unlawful information on the tool.

    Trojan:Win32/VBKrypt.AC!MTB popup alert might falsely claim to be deriving from a law enforcement organization and also will report having located youngster pornography or other illegal data on the tool. The alert will similarly contain a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 3E566AC6
md5: f85270096a2151d825696a9aef1a8632
name: F85270096A2151D825696A9AEF1A8632.mlw
sha1: f0d8cae71ca532eb9bac5045763e7da343bb1000
sha256: 2c32a940a48680ede0f03b2de30890a25c983ce91e2b7737d993a5ccb42677ba
sha512: 929016ea56fbb79fff7369ae58d34cbfcbfaddb40aa8b647e1c54253388ac2b470b56f1c905f09cebc47a76da076981df6a17c7dfb6e68d13adf2fa91b69234b
ssdeep: 768:KXGn9iXlw+aB56SDisobaqmLBqFk75xyZ+NU:K2nYu1cSDipZmFqGA
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0409 0x04b0
InternalName: TAASTR
FileVersion: 1.00
CompanyName: VirtIO
Comments: VirtIO
ProductName: VirtIO
ProductVersion: 1.00
OriginalFilename: TAASTR.exe

Trojan:Win32/VBKrypt.AC!MTB also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware2
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.35754453
FireEye Trojan.GenericKD.35754453
McAfee Artemis!F85270096A21
Cylance Unsafe
K7AntiVirus Trojan ( 00574db11 )
BitDefender Trojan.GenericKD.35754453
K7GW Trojan ( 00574db11 )
Cyren W32/Trojan.PISX-4537
Symantec ML.Attribute.HighConfidence
APEX Malicious
ClamAV Win.Malware.Vbcryptor-9814642-0
Kaspersky Backdoor.Win32.Remcos.rxd
Alibaba Backdoor:Win32/Remcos.51edfa1e
ViRobot Trojan.Win32.Z.Highconfidence.61440.D
Ad-Aware Trojan.GenericKD.35754453
Sophos Mal/Generic-S
Comodo Malware@#3b88o7pcs36wi
F-Secure Trojan.TR/AD.VBCryptor.olrve
TrendMicro TrojanSpy.Win32.ARTEMIS.USMANLK20
McAfee-GW-Edition BehavesLike.Win32.Fareit.kt
Emsisoft Trojan.GenericKD.35754453 (B)
Ikarus Trojan.VB.Crypt
Avira TR/AD.VBCryptor.olrve
Kingsoft Win32.Hack.Remcos.r.(kcloud)
Microsoft Trojan:Win32/VBKrypt.AC!MTB
Gridinsoft Ransom.Win32.Wacatac.oa
Arcabit Trojan.Generic.D22191D5
ZoneAlarm Backdoor.Win32.Remcos.rxd
GData Trojan.GenericKD.35754453
Cynet Malicious (score: 85)
AhnLab-V3 Malware/Win32.RL_Generic.R358704
VBA32 BScope.Trojan.Sonbokli
ALYac Trojan.GenericKD.35754453
MAX malware (ai score=85)
Malwarebytes Trojan.GuLoader
ESET-NOD32 a variant of Win32/Kryptik.HIHO
TrendMicro-HouseCall TrojanSpy.Win32.ARTEMIS.USMANLK20
Rising Downloader.Guloader!1.D047 (CLASSIC)
Yandex Trojan.Igent.bU0y4O.22
eGambit Unsafe.AI_Score_61%
Fortinet W32/Kryptik.HIHO!tr
AVG Win32:Malware-gen
Panda Trj/GdSda.A
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 Win32/Backdoor.2dd

How to remove Trojan:Win32/VBKrypt.AC!MTB 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 Trojan:Win32/VBKrypt.AC!MTB 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 Trojan:Win32/VBKrypt.AC!MTB you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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