ATK/Shellter-AF

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

What is ATK/Shellter-AF infection?

In this article you will find concerning the definition of ATK/Shellter-AF and also its negative effect on your computer system. Such ransomware are a kind of malware that is specified by on the internet frauds to require paying the ransom by a target.

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Most of the situations, ATK/Shellter-AF virus will instruct its targets to launch funds move for the objective of reducing the effects of the amendments that the Trojan infection has actually introduced to the victim’s device.

ATK/Shellter-AF Summary

These adjustments can be as complies with:

  • 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.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records located on the target’s hard disk — so the target can no longer utilize the information;
  • Preventing routine accessibility to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

ATK/Shellter-AF

One of the most typical channels whereby ATK/Shellter-AF Ransomware Trojans are infused are:

  • By ways of phishing emails;
  • As a repercussion of individual winding up on a source that holds a destructive software application;

As quickly as the Trojan is successfully infused, it will either cipher the information on the victim’s computer or stop the tool from working in a correct manner – while also positioning a ransom money note that points out the requirement for the victims to effect the payment for the function of decrypting the files or recovering the data system back to the preliminary problem. In most instances, the ransom note will certainly come up when the client restarts the COMPUTER after the system has currently been damaged.

ATK/Shellter-AF distribution networks.

In different corners of the globe, ATK/Shellter-AF grows by leaps and also bounds. Nonetheless, the ransom notes and also techniques of obtaining the ransom money quantity may vary relying on specific regional (regional) setups. The ransom notes and methods of extorting the ransom amount may vary depending on particular local (regional) setups.

Ransomware injection

As an example:

    Faulty notifies concerning unlicensed software.

    In particular locations, the Trojans usually wrongfully report having found some unlicensed applications allowed on the sufferer’s device. The sharp then demands the customer to pay the ransom.

    Faulty declarations about prohibited content.

    In countries where software program piracy is less preferred, this method is not as effective for the cyber frauds. Additionally, the ATK/Shellter-AF popup alert might falsely declare to be originating from a law enforcement institution and also will report having situated child pornography or various other illegal information on the device.

    ATK/Shellter-AF popup alert may wrongly claim to be deriving from a law enforcement organization and also will report having located youngster porn or various other prohibited data on the tool. The alert will similarly contain a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: E2D99EFC
md5: a920b3c236e4b787f98b4caf8318603b
name: A920B3C236E4B787F98B4CAF8318603B.mlw
sha1: 1a5a388711cd8905e6b5ea719c7dee46c7ce175f
sha256: 6411a98cae62b8d8eb34e948e0a569dff56c02ceabc57fcada4f4116eeab5734
sha512: 06d9ee92ec46a4a74945f34956824a70e6a34fa1c4c5555c83e2bde410f6e632a107854405ddf5012a30fab3bdcc33599c73528aeb89059937f66f94c2de72f4
ssdeep: 3072:8RDiyy5NxPTNu3Psvbu2xXGGGGGGGGHGGGGGGGGGGGGGGGGGGGGGGGGGGGGZ/u21:2m3Np6PabueGGGGGGGGHGGGGGGGGGGGs
type: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive

Version Info:

LegalCopyright: Tim Kosse
FileVersion: 3.27.0.1
CompanyName: Tim Kosse
ProductName: FileZilla
ProductVersion: 3.27.0.1
FileDescription: FileZilla FTP Client
OriginalFilename: FileZilla_3.27.0.1_win32-setup.exe
Translation: 0x0409 0x04b0

ATK/Shellter-AF also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Riskware ( 0040eff71 )
Cylance Unsafe
Sangfor Trojan.Win32.Generic.8
CrowdStrike win/malicious_confidence_100% (W)
K7GW Riskware ( 0040eff71 )
Symantec Trojan.Gen.2
APEX Malicious
Avast FileRepMetagen [Malware]
Kaspersky HEUR:Trojan.Win32.Generic
Tencent Win32.Trojan.Shelma.Llqm
Sophos ATK/Shellter-AF
TrendMicro Backdoor.Win32.SWRORT.SMB
McAfee-GW-Edition BehavesLike.Win32.ObfusRansom.nc
FireEye Generic.mg.a920b3c236e4b787
Microsoft Trojan:Win32/Swrort.A
AegisLab Trojan.Win32.Shelma.4!c
ZoneAlarm HEUR:Trojan.Win32.Generic
McAfee Artemis!A920B3C236E4
TrendMicro-HouseCall Backdoor.Win32.SWRORT.SMB
AVG FileRepMetagen [Malware]

How to remove ATK/Shellter-AF ransomware?

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 ATK/Shellter-AF 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 ATK/Shellter-AF 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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