VirTool:Win32/Obfuscator

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is VirTool:Win32/Obfuscator infection?

In this article you will certainly find concerning the meaning of VirTool:Win32/Obfuscator and its negative impact on your computer. Such ransomware are a type of malware that is clarified by online scams to demand paying the ransom by a victim.

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Most of the instances, VirTool:Win32/Obfuscator ransomware will instruct its victims to start funds move for the objective of counteracting the changes that the Trojan infection has actually introduced to the target’s gadget.

VirTool:Win32/Obfuscator Summary

These modifications can be as follows:

  • 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.
  • Injection with CreateRemoteThread in a remote process;
  • 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.
  • Expresses interest in specific running processes;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Code injection with CreateRemoteThread in a remote process;
  • Deletes its original binary from disk;
  • Tries to unhook or modify Windows functions monitored by Cuckoo;
  • Creates a copy of itself;
  • Creates a slightly modified copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers situated on the victim’s disk drive — so the victim can no longer use the information;
  • Preventing regular accessibility to the sufferer’s workstation;

VirTool:Win32/Obfuscator

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

  • By means of phishing e-mails;
  • As an effect of individual ending up on a source that holds a harmful software application;

As quickly as the Trojan is effectively injected, it will certainly either cipher the data on the victim’s PC or avoid the gadget from working in a proper manner – while also placing a ransom note that states the need for the victims to impact the repayment for the function of decrypting the documents or restoring the file system back to the preliminary condition. In a lot of instances, the ransom note will turn up when the customer restarts the PC after the system has currently been damaged.

VirTool:Win32/Obfuscator circulation channels.

In different corners of the globe, VirTool:Win32/Obfuscator expands by jumps and also bounds. Nevertheless, the ransom money notes and also tricks of obtaining the ransom quantity may differ relying on specific regional (regional) setups. The ransom money notes as well as methods of extorting the ransom money amount might vary depending on certain local (local) setups.

Ransomware injection

For instance:

    Faulty notifies concerning unlicensed software.

    In specific areas, the Trojans typically wrongfully report having spotted some unlicensed applications allowed on the target’s tool. The sharp after that requires the user to pay the ransom.

    Faulty declarations regarding prohibited material.

    In nations where software piracy is much less popular, this method is not as efficient for the cyber scams. Alternatively, the VirTool:Win32/Obfuscator popup alert might falsely claim to be stemming from a police establishment as well as will report having located child porn or various other unlawful data on the tool.

    VirTool:Win32/Obfuscator popup alert may incorrectly assert to be acquiring from a regulation enforcement organization and also will report having located youngster pornography or various other unlawful data on the device. The alert will similarly have a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 3A4737EB
md5: 40be0e06af2841625a7056b18e67beaa
name: 40BE0E06AF2841625A7056B18E67BEAA.mlw
sha1: 106b45d2fc0ae1791d6ca7cb9330449a5f77a115
sha256: 6da3c0667c67bb53ada30dfc2fa6dac45ee5b56197515d0c083ea155a893730f
sha512: 5a3f0fb0bbd4f5b8c2d90a49ae1ad5de3bc659fcad5e2f85e30a101572c66ba589763e99a9933630a55490cfc6bc80fb592a5bed75c19d7f1ed19a8e3d0b3c34
ssdeep: 6144:4Fn347J0V8/DKT4NBlYepGWVNUGELgIJ0wlkAkU5wyNG0L4dbMBXqQ9Su:4F3NTIGEwdkU5wyGtMBXJ8u
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

VirTool:Win32/Obfuscator also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusSpyware ( 005068aa1 )
Elasticmalicious (high confidence)
DrWebTrojan.PWS.Ibank.456
CynetMalicious (score: 90)
McAfeeBackDoor-FBZL!40BE0E06AF28
CylanceUnsafe
ZillyaTrojan.Shiz.Win32.1288
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaVirTool:Win32/Obfuscator.75f322e1
K7GWSpyware ( 005068aa1 )
Cybereasonmalicious.6af284
CyrenW32/S-bf361301!Eldorado
SymantecInfostealer.Shiz!gen2
ESET-NOD32Win32/Spy.Shiz.NCF
APEXMalicious
AvastWin32:Spyware-gen [Spy]
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderGen:Trojan.Sresmon.Gen.1
NANO-AntivirusTrojan.Win32.Ibank.dcarme
ViRobotBackdoor.Win32.A.Shiz.326144
MicroWorld-eScanGen:Trojan.Sresmon.Gen.1
TencentMalware.Win32.Gencirc.114b298f
Ad-AwareGen:Trojan.Sresmon.Gen.1
SophosMal/Generic-R + Mal/EncPk-AHM
ComodoMalware@#nz9x2tfyf678
BitDefenderThetaGen:NN.ZexaF.34608.tuW@aafzSSii
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.Generic.fc
FireEyeGeneric.mg.40be0e06af284162
EmsisoftGen:Trojan.Sresmon.Gen.1 (B)
AviraTR/Crypt.XPACK.Gen7
eGambitUnsafe.AI_Score_99%
MicrosoftVirTool:Win32/Obfuscator
ArcabitTrojan.Sresmon.Gen.1
AegisLabTrojan.Win32.Generic.4!c
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataGen:Trojan.Sresmon.Gen.1
TACHYONBackdoor/W32.Shiz.326144
AhnLab-V3Backdoor/Win32.Shiz.R44473
VBA32BScope.TrojanPSW.Coins
MAXmalware (ai score=100)
PandaTrj/CI.A
RisingRansom.Blocker!8.12A (TFE:1:wIlWk9LlYOU)
YandexTrojanSpy.Shiz!iXGuT7U5OL0
SentinelOneStatic AI – Malicious PE
FortinetW32/Shiz.NCF!tr
AVGWin32:Spyware-gen [Spy]
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.Obfuscated.HgIASOYA

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

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: https://gridinsoft.com/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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