Win32/Filecoder.Avaddon.D

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

What is Win32/Filecoder.Avaddon.D infection?

In this short article you will find about the meaning of Win32/Filecoder.Avaddon.D and its negative effect on your computer. Such ransomware are a form of malware that is clarified by online frauds to require paying the ransom money by a target.

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In the majority of the cases, Win32/Filecoder.Avaddon.D virus will instruct its victims to initiate funds transfer for the purpose of neutralizing the amendments that the Trojan infection has actually introduced to the target’s tool.

Win32/Filecoder.Avaddon.D Summary

These alterations can be as follows:

  • At least one process apparently crashed during execution;
  • Attempts to connect to a dead IP:Port (1 unique times);
  • 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.;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • A process created a hidden window;
  • 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.
  • Creates an autorun.inf file;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • 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.
  • Creates a copy of itself;
  • Attempts to disable UAC.

    User Account Control or just UAC is a part of the Windows security system which prevents apps from making unwanted changes on PC.

    UAC includes several technologies 1:

    • File and egistry Virtualization;
    • Same-desktop Elevation;
    • Filtered Token;
    • User Interface Privilege Isolation;
    • Protected Mode Internet Explorer;
    • Installer Detection;
  • Attempts to modify UAC prompt behavior;
  • Ciphering the files located on the victim’s hard disk drive — so the target can no more use the data;
  • Preventing routine 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.
Similar behavior
Related domains
z.whorecord.xyz Ransom.Avaddon!g1
a.tomx.xyz Ransom.Avaddon!g1

Win32/Filecoder.Avaddon.D

The most common channels through which Win32/Filecoder.Avaddon.D Ransomware Trojans are infused are:

  • By methods of phishing emails;
  • As an effect of customer ending up on a source that holds a malicious software application;

As quickly as the Trojan is efficiently injected, it will either cipher the information on the target’s PC or prevent the tool from working in a correct way – while additionally positioning a ransom note that discusses the need for the sufferers to effect the payment for the objective of decrypting the records or bring back the documents system back to the preliminary condition. In a lot of instances, the ransom money note will come up when the client restarts the COMPUTER after the system has actually currently been harmed.

Win32/Filecoder.Avaddon.D circulation channels.

In numerous corners of the world, Win32/Filecoder.Avaddon.D expands by leaps as well as bounds. Nevertheless, the ransom notes and also techniques of extorting the ransom money quantity might differ depending upon particular local (regional) setups. The ransom notes and techniques of extorting the ransom quantity might vary depending on specific local (local) settings.

Ransomware injection

As an example:

    Faulty alerts about unlicensed software.

    In certain areas, the Trojans usually wrongfully report having actually spotted some unlicensed applications enabled on the victim’s tool. The alert then requires the user to pay the ransom money.

    Faulty statements about unlawful material.

    In nations where software application piracy is less popular, this technique is not as efficient for the cyber frauds. Additionally, the Win32/Filecoder.Avaddon.D popup alert might wrongly claim to be deriving from a police establishment as well as will report having located youngster porn or various other unlawful data on the tool.

    Win32/Filecoder.Avaddon.D popup alert might falsely assert to be obtaining from a law enforcement establishment and will report having situated youngster porn or various other prohibited information on the device. The alert will in a similar way consist of a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 69D41D7E
md5: a2cb612332632d5158c3c7c7cece8a28
name: A2CB612332632D5158C3C7C7CECE8A28.mlw
sha1: 9d1e5c8b037ac70ba1c611225e1985a4aeba9a1b
sha256: f7895214503b4888e4da809ac6869929bd33df0776177f10e4416e0879fd0672
sha512: ef43adb960cd5498d85e1fbeb92b6f42d2cd91910cac8e5d2b95c9ed6cee9c733b6f8f8173e0f53cd9dc1e370b3104b463f9c78c5529f42e5dc5ef399d42203a
ssdeep: 24576:7xl/L4U7IrLBms4o2S3ge8ZuuTCxrblAWEn1snN:37IrLBmQ2SQsuTCFxAWEn1snN
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: xa9 Microsoft Corporation. All rights reserved.
InternalName: taskhost.exe
FileVersion: 10.0.17763.831 (WinBuild.160101.0800)
CompanyName: Microsoft Corporation
ProductName: Microsoftxae Windowsxae Operating System
ProductVersion: 10.0.17763.831
FileDescription: Host Process for Windows Tasks
OriginalFilename: taskhost.exe
Translation: 0x0409 0x04b0

Win32/Filecoder.Avaddon.D also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 00577dec1 )
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
ALYac Gen:Variant.Zusy.378774
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_60% (D)
K7GW Trojan ( 00577dec1 )
Cybereason malicious.332632
Symantec Ransom.Avaddon!g1
ESET-NOD32 a variant of Win32/Filecoder.Avaddon.D
APEX Malicious
Avast Win32:Trojan-gen
Kaspersky HEUR:Trojan.Win32.DelShad.gen
BitDefender Gen:Variant.Zusy.378774
MicroWorld-eScan Gen:Variant.Zusy.378774
Ad-Aware Gen:Variant.Zusy.378774
Sophos Troj/Avaddon-A
BitDefenderTheta Gen:NN.ZexaF.34722.Yu0@aGGno!fi
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.Win32.AVADDON.SMTHA
FireEye Generic.mg.a2cb612332632d51
Emsisoft Gen:Variant.Zusy.378774 (B)
eGambit Unsafe.AI_Score_100%
Microsoft Trojan:Win32/Wacatac.B!ml
Arcabit Trojan.Zusy.D5C796
ZoneAlarm HEUR:Trojan.Win32.DelShad.gen
GData Gen:Variant.Zusy.378774
AhnLab-V3 Malware/Win.Ransom.R422799
MAX malware (ai score=88)
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom.Win32.AVADDON.SMTHA
Rising Ransom.Avaddon!1.C7A8 (CLASSIC)
Fortinet W32/Avaddon.C!tr.ransom
AVG Win32:Trojan-gen

How to remove Win32/Filecoder.Avaddon.D 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 GridinSoft2

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft3.

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 Win32/Filecoder.Avaddon.D 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 Win32/Filecoder.Avaddon.D you can always ask me in the comments for getting help.

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References

  1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server
  2. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  3. 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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