Written by Robert Bailey

What is VirTool:Win32/Obfuscator.QV infection?

In this post you will find about the interpretation of VirTool:Win32/Obfuscator.QV as well as its unfavorable effect on your computer system. Such ransomware are a form of malware that is specified by on-line frauds to require paying the ransom money by a target.

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Most of the instances, VirTool:Win32/Obfuscator.QV infection will certainly advise its victims to start funds move for the purpose of counteracting the modifications that the Trojan infection has presented to the sufferer’s gadget.

VirTool:Win32/Obfuscator.QV Summary

These alterations can be as follows:

  • 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.
  • 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.
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Ciphering the documents situated on the victim’s disk drive — so the target can no longer make use of the data;
  • Preventing normal accessibility to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.


One of the most normal networks through which VirTool:Win32/Obfuscator.QV Trojans are infused are:

  • By means of phishing e-mails;
  • As an effect of individual ending up on a resource that hosts a destructive software;

As soon as the Trojan is effectively infused, it will either cipher the data on the target’s PC or protect against the device from functioning in an appropriate fashion – while likewise putting a ransom money note that states the need for the sufferers to impact the payment for the purpose of decrypting the records or restoring the file system back to the preliminary problem. In a lot of circumstances, the ransom note will certainly show up when the customer reboots the PC after the system has currently been harmed.

VirTool:Win32/Obfuscator.QV circulation networks.

In different edges of the world, VirTool:Win32/Obfuscator.QV grows by leaps as well as bounds. Nevertheless, the ransom notes and also methods of extorting the ransom money amount may vary relying on certain local (local) setups. The ransom notes and also methods of obtaining the ransom quantity may vary depending on certain local (regional) setups.

Ransomware injection

As an example:

    Faulty notifies about unlicensed software.

    In particular areas, the Trojans commonly wrongfully report having actually identified some unlicensed applications made it possible for on the sufferer’s gadget. The sharp after that demands the customer to pay the ransom.

    Faulty declarations about prohibited material.

    In nations where software application piracy is much less preferred, this technique is not as reliable for the cyber scams. Conversely, the VirTool:Win32/Obfuscator.QV popup alert might incorrectly claim to be deriving from a law enforcement organization as well as will report having located child pornography or various other unlawful information on the gadget.

    VirTool:Win32/Obfuscator.QV popup alert may falsely declare to be acquiring from a legislation enforcement institution and also will certainly report having located youngster pornography or other prohibited data on the device. The alert will in a similar way include a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: A216810E
md5: 79819e72651496d0b6861d08fe827801
name: upload_file
sha1: 4c802323f2e9aa419ac189d11d54d3ee5cd01c64
sha256: 22709d7884e71cdeb419e81453644edef69f8373a7a676c85c4d85f1ab67be46
sha512: 9a04068bd6b1622441e3280373ef75bb55e80705c5480b833130e07e6139a928d51ff15e8b63d952480e733777ec80151d79c7cda4502bc4ffe8203297c549d5
ssdeep: 1536:ufuwLvvKeqM0TRl79lvhWAwVl5OpqIyedIVjC3E8MzcrHuTcxLUllPR:umwLXnqM0Nl795twDIyeeBr+HUiUj
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

VirTool:Win32/Obfuscator.QV also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware2
DrWeb Trojan.Encoder.24384
MicroWorld-eScan Trojan.GenericKD.41193099
CAT-QuickHeal Trojan.Mauvaise.SL1
McAfee GenericRXHE-JQ!79819E726514
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Malware
K7AntiVirus Riskware ( 0040eff71 )
BitDefender Trojan.GenericKD.41193099
K7GW Riskware ( 0040eff71 )
Cybereason malicious.265149
Invincea heuristic
BitDefenderTheta AI:Packer.B54297C81E
Cyren W32/Agent.AYQ.gen!Eldorado
Symantec Downloader
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Malware.Razy-6829823-0
GData Trojan.GenericKD.41193099
Kaspersky HEUR:Trojan-Ransom.Win32.Encoder.gen
Alibaba VirTool:Win32/Obfuscator.342c77a6
NANO-Antivirus Virus.Win32.Gen.ccmw
ViRobot Trojan.Win32.GandCrab.99840
AegisLab Trojan.Win32.Generic.4!c
Tencent Malware.Win32.Gencirc.10b6a2db
Endgame malicious (high confidence)
Sophos Troj/Kryptik-JG
Comodo Malware@#1iez8bq1qq9bj
F-Secure Heuristic.HEUR/AGEN.1102651
Zillya Trojan.Generic.Win32.693384
TrendMicro Ransom.Win32.GANDCRAB.SMILC
Emsisoft Trojan.GenericKD.41193099 (B)
SentinelOne DFI – Malicious PE
F-Prot W32/Agent.AYQ.gen!Eldorado
Jiangmin Trojan.Generic.dcnnk
Webroot W32.Malware.gen
Avira HEUR/AGEN.1102651
Antiy-AVL HackTool[VirTool]/Win32.Obfuscator
Arcabit Trojan.Generic.D2748E8B
SUPERAntiSpyware Ransom.GandCrab/Variant
ZoneAlarm HEUR:Trojan-Ransom.Win32.Encoder.gen
Microsoft VirTool:Win32/Obfuscator.QV
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Gandcrab.R259365
Acronis suspicious
VBA32 BScope.TrojanRansom.GandCrypt
ALYac Trojan.Ransom.GandCrab
TACHYON Ransom/W32.GandCrab.99840
Ad-Aware Trojan.GenericKD.41193099
Malwarebytes Ransom.GandCrab
Panda Trj/Genetic.gen
ESET-NOD32 a variant of Win32/Filecoder.GandCrab.F
TrendMicro-HouseCall Ransom.Win32.GANDCRAB.SMILC
Rising Ransom.GandCrab!1.B63E (CLOUD)
Yandex Trojan.Agent!Pi/F9rtbeqM
MAX malware (ai score=100)
eGambit Unsafe.AI_Score_92%
Fortinet W32/GandCrab_V5_2!tr.ransom
AVG Win32:Malware-gen
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 HEUR/QVM20.1.586F.Malware.Gen

How to remove VirTool:Win32/Obfuscator.QV virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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 VirTool:Win32/Obfuscator.QV 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove VirTool:Win32/Obfuscator.QV 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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