What is VirTool:Win32/Obfuscator.ANA infection?

In this article you will locate regarding the definition of VirTool:Win32/Obfuscator.ANA and its adverse influence on your computer system. Such ransomware are a form of malware that is elaborated by online scams to require paying the ransom money by a victim.

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Most of the instances, VirTool:Win32/Obfuscator.ANA virus will certainly instruct its victims to launch funds move for the function of counteracting the amendments that the Trojan infection has actually presented to the victim’s gadget.

VirTool:Win32/Obfuscator.ANA Summary

These alterations can be as complies with:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the victim’s hard disk — so the target can no more use the data;
  • Preventing routine accessibility 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.


The most typical channels whereby VirTool:Win32/Obfuscator.ANA Ransomware Trojans are injected are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As an effect of user winding up on a source that hosts a malicious software application;

As soon as the Trojan is efficiently injected, it will either cipher the information on the victim’s computer or avoid the device from operating in an appropriate manner – while also placing a ransom note that discusses the need for the victims to effect the settlement for the objective of decrypting the records or restoring the data system back to the preliminary problem. In the majority of circumstances, the ransom money note will certainly show up when the client reboots the COMPUTER after the system has currently been harmed.

VirTool:Win32/Obfuscator.ANA circulation networks.

In various edges of the globe, VirTool:Win32/Obfuscator.ANA expands by jumps and bounds. However, the ransom money notes and also techniques of extorting the ransom money amount may differ depending upon certain regional (regional) setups. The ransom notes as well as tricks of obtaining the ransom amount might differ depending on particular local (local) setups.

Ransomware injection

For example:

    Faulty informs concerning unlicensed software program.

    In certain areas, the Trojans typically wrongfully report having found some unlicensed applications made it possible for on the target’s device. The sharp after that demands the customer to pay the ransom.

    Faulty declarations about illegal web content.

    In countries where software application piracy is less preferred, this technique is not as efficient for the cyber fraudulences. Alternatively, the VirTool:Win32/Obfuscator.ANA popup alert might falsely declare to be deriving from a law enforcement institution and will report having located kid porn or other illegal data on the device.

    VirTool:Win32/Obfuscator.ANA popup alert might falsely assert to be obtaining from a regulation enforcement organization and will report having located kid porn or other illegal information on the device. The alert will in a similar way have a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: 6AD55026
md5: a66b26e0354124e4c5c4caf49bb7ef5a
name: A66B26E0354124E4C5C4CAF49BB7EF5A.mlw
sha1: 2dfeff8a2312dc0fc1b44dfdf1e8a3697a89aa35
sha256: 8c7c21d976b204a3d50897dd7964e3aac37dab66a91299cedb30bad7e8e1692d
sha512: 38768c8d7d3dc9eedb8ed4f9ee787b78c5d2f5037a90c04bb271c8ad1ee0322e166b4120d46cab546353af020a33d28c8c09fd7bb684451305beffa0a9c5ac5d
ssdeep: 6144:GsCH4U/QBc3sqCmhylkSYf+hFMQb6arjOhMwcB5m5w4L9oQONuD:G1puqhYlkEHMQbrrucBb4i4
type: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows

Version Info:

0: [No Data]

VirTool:Win32/Obfuscator.ANA also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Riskware ( 0040eff71 )
Elastic malicious (high confidence)
DrWeb Trojan.Winlock.11938
Cynet Malicious (score: 100)
ALYac Gen:Variant.Strictor.94132
Cylance Unsafe
Zillya Trojan.Foreign.Win32.53423
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Foreign.253a0927
K7GW Riskware ( 0040eff71 )
Cybereason malicious.035412
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.DUGA
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Foreign.msvq
BitDefender Gen:Variant.Strictor.94132
NANO-Antivirus Trojan.Win32.RiskGen.dvqzjz
MicroWorld-eScan Gen:Variant.Strictor.94132
Tencent Win32.Trojan.Foreign.Lmat
Ad-Aware Gen:Variant.Strictor.94132
Sophos Mal/Generic-S
Comodo Malware@#155y5hboxqa30
BitDefenderTheta Gen:NN.ZexaF.34608.ryW@a0irtyai
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Dropper.dh
Emsisoft Gen:Variant.Strictor.94132 (B)
Avira HEUR/AGEN.1127161
eGambit Unsafe.AI_Score_97%
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft VirTool:Win32/Obfuscator.ANA
Arcabit Trojan.Strictor.D16FB4
AegisLab Trojan.Win32.Foreign.j!c
ZoneAlarm Trojan-Ransom.Win32.Foreign.msvq
GData Gen:Variant.Strictor.94132
TACHYON Ransom/W32.Foreign.285696.B
AhnLab-V3 Trojan/Win32.Dynamer.R163136
McAfee Artemis!A66B26E03541
MAX malware (ai score=100)
VBA32 BScope.Trojan.Bagsu
Malwarebytes MachineLearning/Anomalous.100%
Panda Trj/Genetic.gen
Rising Ransom.Foreign!8.292 (CLOUD)
Yandex Trojan.GenAsa!BmckOd9oHF4
Ikarus Trojan.Win32.Crypt
Fortinet W32/Kryptik.FNZR!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Trojan.Foreign.HgIASOsA

How to remove VirTool:Win32/Obfuscator.ANA 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 VirTool:Win32/Obfuscator.ANA 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 VirTool:Win32/Obfuscator.ANA you can always ask me in the comments for getting help.

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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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