Written by Robert Bailey

What is VirTool:Win32/Obfuscator.UO infection?

In this short article you will certainly locate concerning the interpretation of VirTool:Win32/Obfuscator.UO and its unfavorable impact on your computer. Such ransomware are a kind of malware that is clarified by online frauds to demand paying the ransom money by a sufferer.

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In the majority of the cases, VirTool:Win32/Obfuscator.UO virus will certainly advise its victims to start funds transfer for the objective of counteracting the modifications that the Trojan infection has introduced to the victim’s tool.

VirTool:Win32/Obfuscator.UO Summary

These adjustments can be as adheres to:

  • Unconventionial language used in binary resources: Russian;
  • Anomalous binary characteristics;
  • Ciphering the records situated on the sufferer’s hard disk drive — so the sufferer can no longer utilize the data;
  • Preventing routine accessibility to the target’s workstation;


The most normal networks where VirTool:Win32/Obfuscator.UO Ransomware are injected are:

  • By means of phishing emails;
  • As a consequence of user ending up on a source that organizes a harmful software;

As soon as the Trojan is efficiently injected, it will either cipher the data on the victim’s PC or prevent the device from working in an appropriate fashion – while likewise positioning a ransom money note that mentions the demand for the victims to effect the repayment for the objective of decrypting the records or recovering the documents system back to the first problem. In many instances, the ransom money note will come up when the client reboots the COMPUTER after the system has actually already been harmed.

VirTool:Win32/Obfuscator.UO circulation channels.

In numerous edges of the world, VirTool:Win32/Obfuscator.UO expands by jumps and also bounds. Nonetheless, the ransom notes as well as methods of extorting the ransom amount may vary depending upon certain neighborhood (local) setups. The ransom money notes as well as tricks of extorting the ransom quantity may differ depending on specific local (local) settings.

Ransomware injection

For instance:

    Faulty alerts about unlicensed software.

    In specific areas, the Trojans typically wrongfully report having actually identified some unlicensed applications allowed on the target’s gadget. The alert after that demands the individual to pay the ransom money.

    Faulty statements about illegal material.

    In countries where software piracy is less popular, this method is not as reliable for the cyber scams. Conversely, the VirTool:Win32/Obfuscator.UO popup alert may incorrectly declare to be deriving from a law enforcement establishment and also will report having located youngster porn or various other prohibited data on the gadget.

    VirTool:Win32/Obfuscator.UO popup alert may falsely declare to be obtaining from a regulation enforcement institution and also will report having located kid pornography or various other prohibited information on the gadget. The alert will likewise consist of a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: 45DDA085
md5: 829001011b1ec0ea2a7d6ac3b3ef03df
name: 829001011B1EC0EA2A7D6AC3B3EF03DF.mlw
sha1: a7e941a2e0bcb12a02be1420e1c26c15d81d692e
sha256: 1a45658d5de6476c6cfd20a92d273ea2be1ed19c20074724d691d90071334b4a
sha512: 5b09d2a76c2cb9905b4967b0a29bb57776d67683377772eff35cad6263daad5be0c24ee9e12ff5c2973bed0929aa8d77c7a867f00c16e2584f69fd02b7d4a418
ssdeep: 1536:lZQqu9wfgzsIkO+/h8Zn6fvQBKA6W2Iu8wTaMLA0t:lZQfhsIUpQBKA6Mua8As
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

VirTool:Win32/Obfuscator.UO also known as:

Bkav W32.AIDetect.malware1
Lionic Trojan.Win32.Generic.4!c
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Panda.10526
ALYac Gen:Trojan.Heur.KS.4
Cylance Unsafe
Zillya Trojan.Kryptik.Win32.903506
Sangfor Trojan.Win32.Save.a
BitDefender Gen:Trojan.Heur.KS.4
Cybereason malicious.11b1ec
Cyren W32/Zbot.CK.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.MXB
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky UDS:DangerousObject.Multi.Generic
Alibaba Trojan:Win32/Kryptik.2410ad6d
MicroWorld-eScan Gen:Trojan.Heur.KS.4
Tencent Win32.Trojan.Vundo.Dztg
Ad-Aware Gen:Trojan.Heur.KS.4
Sophos ML/PE-A
BitDefenderTheta AI:Packer.4B68629A14
VIPRE Trojan.Win32.Generic!BT
Emsisoft Gen:Trojan.Heur.KS.4 (B)
SentinelOne Static AI – Suspicious PE
Avira TR/Vundo.Gen
eGambit Generic.Malware
Antiy-AVL Trojan/Generic.ASMalwS.18453F5
Microsoft VirTool:Win32/Obfuscator.UO
Arcabit Trojan.Heur.KS.4
SUPERAntiSpyware Trojan.Agent/Gen-Kryptik
GData Gen:Trojan.Heur.KS.4
McAfee PWS-Zbot.gen.axj
MAX malware (ai score=98)
VBA32 BScope.Trojan.Zbot.01476
Panda Trj/Banker.JJG
Rising Trojan.Generic@ML.100 (RDML:pqAERbIv1owllYFo1TYihQ)
Ikarus Trojan.Win32.Crypt
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Kryptik.HZ!tr

How to remove VirTool:Win32/Obfuscator.UO 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

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 VirTool:Win32/Obfuscator.UO 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

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