VirTool:Win32/Obfuscator.JO

What is VirTool:Win32/Obfuscator.JO infection?

In this post you will discover about the definition of VirTool:Win32/Obfuscator.JO as well as its negative effect on your computer system. Such ransomware are a type of malware that is clarified by online frauds to demand paying the ransom by a victim.

In the majority of the instances, VirTool:Win32/Obfuscator.JO infection will certainly advise its targets to launch funds move for the function of counteracting the modifications that the Trojan infection has actually presented to the victim’s tool.

VirTool:Win32/Obfuscator.JO Summary

These modifications 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.
  • Unconventionial language used in binary resources: Russian;
  • 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.
  • Ciphering the documents situated on the victim’s hard drive — so the victim can no longer use the data;
  • Preventing normal access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

VirTool:Win32/Obfuscator.JO

One of the most typical channels through which VirTool:Win32/Obfuscator.JO Ransomware Trojans are infused are:

  • By ways of phishing e-mails;
  • As an effect of user ending up on a source that organizes a malicious software program;

As soon as the Trojan is successfully injected, it will certainly either cipher the information on the sufferer’s computer or protect against the gadget from working in an appropriate fashion – while likewise putting a ransom money note that points out the need for the targets to impact the settlement for the objective of decrypting the records or recovering the documents system back to the preliminary condition. In the majority of circumstances, the ransom note will show up when the customer reboots the PC after the system has currently been harmed.

VirTool:Win32/Obfuscator.JO distribution networks.

In various edges of the globe, VirTool:Win32/Obfuscator.JO expands by jumps and bounds. Nonetheless, the ransom notes and also methods of extorting the ransom money amount may vary depending upon particular regional (regional) settings. The ransom notes and techniques of obtaining the ransom money quantity may vary depending on certain local (local) settings.

Ransomware injection

For instance:

    Faulty alerts concerning unlicensed software application.

    In specific areas, the Trojans usually wrongfully report having spotted some unlicensed applications allowed on the victim’s device. The sharp then requires the individual to pay the ransom.

    Faulty statements concerning prohibited material.

    In countries where software program piracy is less prominent, this approach is not as reliable for the cyber frauds. Alternatively, the VirTool:Win32/Obfuscator.JO popup alert might falsely assert to be originating from a law enforcement organization and will report having located kid porn or other prohibited data on the gadget.

    VirTool:Win32/Obfuscator.JO popup alert might wrongly declare to be acquiring from a law enforcement institution as well as will certainly report having located youngster pornography or various other unlawful information on the gadget. The alert will likewise consist of a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: F5AB0D89md5: 11b4c9c8776a3729e62483d27f613e46name: 11B4C9C8776A3729E62483D27F613E46.mlwsha1: a556ee7d4ca455d8ba72724478679c4c6bca66d8sha256: 5d65a40d297a79ff44fea2dbe6b97a385abf8c7b504fa68130d2cc257821208csha512: 12e350e129e648857d13dea38e49966d41b5db5899e11663c69bf4afa928cdf07c208deb22a02fc4878c42a1b1eae8fe513c74ddce9dba9edc085a182837c528ssdeep: 1536:kBd4N3sO+e0x20EwAHF8zoOHOoGzO/J7B6bkrhGIAAN/UBA3kScDi5Oi3nB:qY8/QwAH+RfGzO/J7Bq5A0ScDvi3nBtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: KYlAgRFileVersion: 6.0CompanyName: HjEProductName: jdrDrpeProductVersion: 6.0FileDescription: nMbTXiaOriginalFilename: iKi.exeTranslation: 0x0409 0x0000

VirTool:Win32/Obfuscator.JO also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Ransom.Cerber.1
FireEye Generic.mg.11b4c9c8776a3729
ALYac Trojan.Ransom.Cerber.1
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 0050b7db1 )
BitDefender Trojan.Ransom.Cerber.1
K7GW Trojan ( 0050b7db1 )
Cybereason malicious.8776a3
Arcabit Trojan.Ransom.Cerber.1
Symantec ML.Attribute.HighConfidence
APEX Malicious
ClamAV Win.Trojan.Agent-966694
Kaspersky HEUR:Trojan.Win32.Generic
NANO-Antivirus Trojan.Win32.Crypted.ubmkc
Rising Trojan.Win32.Generic.12DFB8E7 (C64:YzY0OpT7QHJ8gwcv)
Ad-Aware Trojan.Ransom.Cerber.1
Emsisoft Trojan.Ransom.Cerber.1 (B)
Comodo Malware@#1b0ouziq0qt8x
F-Secure Trojan.TR/Crypt.XPACK.Gen
DrWeb BackDoor.Dego.2
Zillya Trojan.FakeAV.Win32.45200
McAfee-GW-Edition BehavesLike.Win32.Dropper.mh
Sophos ML/PE-A + Mal/FakeAV-BW
Ikarus Virus.Win32.Heri
Jiangmin Trojan.Generic.llko
Webroot none
Avira TR/Crypt.XPACK.Gen
MAX malware (ai score=80)
Antiy-AVL Trojan/Win32.AGeneric
Microsoft VirTool:Win32/Obfuscator.JO
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Ransom.Cerber.1
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Generic.C1913709
McAfee GenericR-FSR!11B4C9C8776A
Panda Trj/CI.A
ESET-NOD32 Win32/Agent.RMA
Tencent Win32.Trojan.Bublik.gsi
Yandex Trojan.Agent!uSjALLbARoQ
SentinelOne Static AI – Malicious PE
Fortinet W32/Agent.BW
BitDefenderTheta AI:Packer.246F9F731F
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 Generic/HEUR/Malware.QVM20.Gen

How to remove VirTool:Win32/Obfuscator.JO 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

Run the setup file.

Run Setup.exe
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 Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

If the guide doesn’t help you to remove VirTool:Win32/Obfuscator.JO you can always ask me in the comments for getting help.

References

    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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