VirTool:INF/Autorun

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

What is VirTool:INF/Autorun infection?

In this article you will locate about the definition of VirTool:INF/Autorun as well as its adverse influence on your computer. Such ransomware are a form of malware that is specified by on-line scams to require paying the ransom money by a sufferer.

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In the majority of the instances, VirTool:INF/Autorun virus will advise its targets to start funds transfer for the function of neutralizing the changes that the Trojan infection has presented to the sufferer’s device.

VirTool:INF/Autorun Summary

These alterations can be as complies with:

  • Expresses interest in specific running processes;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • 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.

  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Performs some HTTP requests;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • Uses Windows utilities for basic functionality;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Ciphering the documents found on the sufferer’s hard disk — so the victim can no more utilize the information;
  • 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.

VirTool:INF/Autorun

The most normal networks whereby VirTool:INF/Autorun Ransomware are injected are:

  • By means of phishing emails;
  • As a consequence of individual ending up on a resource that organizes a destructive software application;

As quickly as the Trojan is successfully injected, it will either cipher the information on the victim’s PC or stop the tool from working in a correct fashion – while likewise positioning a ransom money note that discusses the need for the targets to effect the settlement for the purpose of decrypting the files or recovering the data system back to the first problem. In most circumstances, the ransom note will certainly come up when the customer restarts the COMPUTER after the system has currently been harmed.

VirTool:INF/Autorun circulation networks.

In different edges of the globe, VirTool:INF/Autorun expands by leaps and also bounds. Nonetheless, the ransom notes and tricks of obtaining the ransom amount might vary depending upon particular local (local) settings. The ransom money notes and also techniques of obtaining the ransom money amount may vary depending on certain neighborhood (regional) settings.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software.

    In certain locations, the Trojans usually wrongfully report having spotted some unlicensed applications enabled on the target’s gadget. The sharp then demands the user to pay the ransom.

    Faulty declarations concerning prohibited web content.

    In nations where software program piracy is less preferred, this approach is not as reliable for the cyber scams. Additionally, the VirTool:INF/Autorun popup alert might incorrectly declare to be stemming from a law enforcement institution and will certainly report having situated kid porn or various other unlawful data on the gadget.

    VirTool:INF/Autorun popup alert might wrongly assert to be acquiring from a legislation enforcement establishment as well as will report having situated kid pornography or other illegal information on the gadget. The alert will likewise include a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 24C51474
md5: 52fdffd1de66f49510b37df100786f18
name: 52FDFFD1DE66F49510B37DF100786F18.mlw
sha1: 588d463f1670d6132fc6426f0178b77d6fe28495
sha256: 1e7e9438a6b327bb365de652c94fb9aae0f95cf898605b619583a2ac101e0131
sha512: 8b6661827d4e37da58b161261977e55d696d861373bb13c790d21b22bfd293071b640bd549e0027a61bb4ca4dff5246a9c51cf1ebd2d068e5e9d42873855fe3d
ssdeep: 12288:zozGdX0M4ornOmZIzfMwHHQmRROXKINHF6rJ4jdzDcR:z4GHnhIzOaMArJuuR
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

Translation: 0x0809 0x04b0

VirTool:INF/Autorun also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
MicroWorld-eScanTrojan.GenericKD.4705126
FireEyeTrojan.GenericKD.4705126
McAfeeArtemis!52FDFFD1DE66
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
SangforTrojan.Win32.Save.a
K7AntiVirusRiskware ( 0040eff71 )
BitDefenderTrojan.GenericKD.4705126
K7GWRiskware ( 0040eff71 )
CrowdStrikewin/malicious_confidence_80% (D)
SymantecML.Attribute.HighConfidence
APEXMalicious
AvastAutoIt:Injector-IU [Trj]
KasperskyTrojan-Ransom.Win32.Snocry.cxb
AlibabaTrojan:Win32/Starter.ali2000005
NANO-AntivirusTrojan.Win32.Snocry.encawq
RisingTrojan.Obfus/Autoit!1.BEDE (CLASSIC)
Ad-AwareTrojan.GenericKD.4705126
EmsisoftTrojan.GenericKD.4705126 (B)
ComodoMalware@#14pnl8fi376c0
F-SecureHeuristic.HEUR/AGEN.1102700
DrWebWin32.HLLW.Autoruner2.28252
ZillyaTrojan.Snocry.Win32.563
TrendMicroRansom_STAMPADO.F117CU
McAfee-GW-EditionBehavesLike.Win32.TrojanAitInject.jc
SophosML/PE-A + Troj/Stampado-A
IkarusWorm.Win32.FileCrypter
MaxSecureTrojan.Malware.300983.susgen
AviraHEUR/AGEN.1102700
MAXmalware (ai score=81)
Antiy-AVLGrayWare/Autoit.Execute.a
MicrosoftVirTool:INF/Autorun
ArcabitTrojan.Generic.D47CB66
ZoneAlarmTrojan-Ransom.Win32.Snocry.cxb
GDataTrojan.GenericKD.4705126
CynetMalicious (score: 85)
BitDefenderThetaAI:Packer.B4380A1715
ALYacTrojan.GenericKD.4705126
VBA32TrojanRansom.Snocry
MalwarebytesMalware.Heuristic.1003
PandaTrj/CI.A
ESET-NOD32a variant of Win32/Filecoder.Philadelphia.F
TrendMicro-HouseCallRansom_STAMPADO.F117CU
TencentMalware.Win32.Gencirc.10b3ba7d
eGambitUnsafe.AI_Score_82%
FortinetAutoIt/Philadelphia.4936!tr.ransom
WebrootW32.Ransom.Gen
AVGAutoIt:Injector-IU [Trj]
Cybereasonmalicious.1de66f
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.Generic.HgIASOoA

How to remove VirTool:INF/Autorun 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:INF/Autorun 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:INF/Autorun 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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