VHO:WebToolbar.Win32.Perion

Written by Robert Bailey

What is VHO:WebToolbar.Win32.Perion infection?

In this post you will certainly locate about the meaning of VHO:WebToolbar.Win32.Perion and its adverse influence on your computer. Such ransomware are a kind of malware that is clarified by on-line fraudulences to demand paying the ransom by a sufferer.

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In the majority of the cases, VHO:WebToolbar.Win32.Perion infection will instruct its sufferers to launch funds move for the purpose of reducing the effects of the amendments that the Trojan infection has actually presented to the victim’s gadget.

VHO:WebToolbar.Win32.Perion Summary

These alterations can be as adheres to:

  • 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.
  • A process attempted to delay the analysis task.;
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Unconventionial binary language: Chinese (Simplified);
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Tries to unhook or modify Windows functions monitored by Cuckoo;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers situated on the target’s hard disk drive — so the victim can no longer utilize the information;
  • Preventing routine accessibility 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.

VHO:WebToolbar.Win32.Perion

The most regular channels where VHO:WebToolbar.Win32.Perion are injected are:

  • By means of phishing emails;
  • As a repercussion of user winding up on a source that hosts a malicious software;

As quickly as the Trojan is effectively infused, it will either cipher the information on the victim’s PC or protect against the tool from working in an appropriate manner – while additionally putting a ransom money note that mentions the need for the targets to effect the payment for the function of decrypting the documents or restoring the file system back to the first condition. In the majority of instances, the ransom money note will turn up when the customer reboots the COMPUTER after the system has actually already been harmed.

VHO:WebToolbar.Win32.Perion distribution channels.

In different edges of the globe, VHO:WebToolbar.Win32.Perion expands by leaps as well as bounds. Nevertheless, the ransom notes and also tricks of extorting the ransom quantity may vary depending on particular neighborhood (local) setups. The ransom money notes and also methods of extorting the ransom quantity might differ depending on specific local (local) settings.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software program.

    In specific locations, the Trojans frequently wrongfully report having actually identified some unlicensed applications enabled on the target’s device. The sharp then requires the customer to pay the ransom money.

    Faulty declarations regarding prohibited web content.

    In countries where software piracy is much less prominent, this approach is not as effective for the cyber scams. Additionally, the VHO:WebToolbar.Win32.Perion popup alert might falsely claim to be stemming from a law enforcement organization as well as will report having situated youngster pornography or various other unlawful information on the tool.

    VHO:WebToolbar.Win32.Perion popup alert may falsely assert to be deriving from a law enforcement establishment as well as will certainly report having situated child porn or other unlawful data on the gadget. The alert will in a similar way have a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: 83C50087
md5: d64c9c00ee887d5cc6c6e71ff07045eb
name: D64C9C00EE887D5CC6C6E71FF07045EB.mlw
sha1: ee4fa96482089f4402b0be57606c51d8ae39e1e1
sha256: 72924bc1a63d1ef520837e9db04d5fff3f92dd84c754fc5f74c77a7679dfad6e
sha512: 04360e14014d1c45d7aa56151e407f94ebf75a24723d136b1ac7c2d639d70ab98f769ad5f7abe4908ef1328360df94040b4076110c2aad3706769a93b2611b33
ssdeep: 12288:q3rkfhFR3G7VaWvgFMX9jyEHfVau4tTN64wOVzqzpBh4eC:qYh3KVaYFNbHfVaXt7wKzq1y
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: x4f5cx8005x7248x6743x6240x6709 x8bf7x5c0ax91cdx5e76x4f7fx7528x6b63x7248
FileVersion: 1.0.0.0
Comments: x672cx7a0bx5e8fx4f7fx7528x6613x8bedx8a00x7f16x5199(http://www.eyuyan.com)
ProductName: x6613x8bedx8a00x7a0bx5e8f
ProductVersion: 1.0.0.0
FileDescription: x6613x8bedx8a00x7a0bx5e8f
Translation: 0x0804 0x04b0

VHO:WebToolbar.Win32.Perion also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_80% (W)
Cybereason malicious.482089
Cyren W32/Fujack.U
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Packed.FlyStudio.AA potentially unwanted
APEX Malicious
Kaspersky not-a-virus:VHO:WebToolbar.Win32.Perion.gen
ViRobot Backdoor.Win32.IRCBot.35288
Sophos Generic ML PUA (PUA)
Comodo TrojWare.Win32.Spy.KeyLogger.~P@19qrg4
BitDefenderTheta Gen:NN.ZexaF.34678.Ii0aaKUPXHbb
VIPRE Trojan.Crypt.AntiSig.b (v)
McAfee-GW-Edition BehavesLike.Win32.VirRansom.hc
FireEye Generic.mg.d64c9c00ee887d5c
SentinelOne Static AI – Suspicious PE
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1135146
eGambit Unsafe.AI_Score_99%
Microsoft Trojan:Win32/Emotet!ml
Gridinsoft Malware.Win32.Pack.6649!se
GData Win32.Application.PUPStudio.A
AhnLab-V3 Win32/MalPackedB.suspicious
Acronis suspicious
McAfee Artemis!D64C9C00EE88
Malwarebytes PUP.Optional.ChinAd
Rising Malware.Heuristic!ET#100% (RDMK:cmRtazqRfR6+VQzJb8ZkchtkWhY2)
MaxSecure Dropper.Dinwod.frindll
Fortinet Riskware/Application
Paloalto generic.ml

How to remove VHO:WebToolbar.Win32.Perion ransomware?

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 VHO:WebToolbar.Win32.Perion 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 VHO:WebToolbar.Win32.Perion 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/products/

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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