What is Win32/Filecoder.Avaddon.A infection?

In this article you will locate concerning the meaning of Win32/Filecoder.Avaddon.A and also its adverse impact on your computer. Such ransomware are a form of malware that is elaborated by online frauds to require paying the ransom by a victim.

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In the majority of the cases, Win32/Filecoder.Avaddon.A virus will instruct its sufferers to initiate funds transfer for the purpose of counteracting the amendments that the Trojan infection has actually introduced to the victim’s gadget.

Win32/Filecoder.Avaddon.A Summary

These alterations can be as follows:

  • 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;
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • Modifies boot configuration settings;
  • 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
  • Clears Windows events or logs;
  • 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;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the records located on the sufferer’s hard drive — so the sufferer can no longer make use of 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.


The most normal channels whereby Win32/Filecoder.Avaddon.A Ransomware Trojans are injected are:

  • By methods of phishing emails;
  • As a repercussion of customer winding up on a resource that organizes a malicious software application;

As quickly as the Trojan is effectively injected, it will certainly either cipher the data on the sufferer’s computer or protect against the gadget from functioning in a correct way – while likewise positioning a ransom note that discusses the need for the sufferers to effect the settlement for the objective of decrypting the files or recovering the file system back to the initial condition. In a lot of circumstances, the ransom money note will show up when the client restarts the PC after the system has currently been damaged.

Win32/Filecoder.Avaddon.A circulation channels.

In various corners of the world, Win32/Filecoder.Avaddon.A grows by jumps and bounds. Nonetheless, the ransom notes and also methods of obtaining the ransom money amount may vary depending on certain regional (regional) settings. The ransom notes and also methods of extorting the ransom amount may differ depending on certain regional (local) setups.

Ransomware injection

As an example:

    Faulty alerts about unlicensed software.

    In specific areas, the Trojans usually wrongfully report having actually discovered some unlicensed applications allowed on the target’s tool. The alert then requires the user to pay the ransom money.

    Faulty statements regarding prohibited web content.

    In countries where software application piracy is much less popular, this approach is not as effective for the cyber fraudulences. Additionally, the Win32/Filecoder.Avaddon.A popup alert might falsely claim to be deriving from a law enforcement organization and will report having located child porn or other unlawful data on the tool.

    Win32/Filecoder.Avaddon.A popup alert might falsely assert to be deriving from a regulation enforcement organization and will certainly report having situated child porn or other prohibited information on the gadget. The alert will similarly contain a demand for the user to pay the ransom.

Technical details

File Info:

crc32: AF2CA7B1
md5: 19e8d1aac41f6cdeb046f1eb3d5d3e3a
name: 19E8D1AAC41F6CDEB046F1EB3D5D3E3A.mlw
sha1: f6199a208f80997225586eb796b918d52ba0070c
sha256: 6616abb725c24307f4f062996edc5150079bc477acd4236a4f450e5835a20c62
sha512: ff5e084584b7adb753a1243f309c6f77313978dc830923ec95ebea8f8e16aa650a89d0f752f15c42edf63217aae2a70452fb394130ae4a20f35ce5fea5e603d4
ssdeep: 24576:Cs6JmdFn5KLOCgHWcAvcr/EsKfR9uA7rmFbbbbpccf:Cs6JY5KLOCyWcDgfRAA3mFbbbbpc4
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Filecoder.Avaddon.A also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.Ransom120TTc.Worm
K7AntiVirus Trojan ( 0056843b1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.32315
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.Avaddon
Cylance Unsafe
Zillya Trojan.Filecoder.Win32.14796
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Ulise.a841851c
K7GW Trojan ( 0056843b1 )
Cybereason malicious.ac41f6
Cyren W32/Ransom.SAKN-9287
ESET-NOD32 Win32/Filecoder.Avaddon.A
APEX Malicious
Avast Win32:TrojanX-gen [Trj]
Kaspersky Trojan-Ransom.Win32.Avaddon.a
BitDefender Gen:Variant.Ransom.Avaddon.2
NANO-Antivirus Trojan.Win32.Filecoder.hlftwz
MicroWorld-eScan Gen:Variant.Ransom.Avaddon.2
Tencent Malware.Win32.Gencirc.10cdd68a
Ad-Aware Gen:Variant.Ransom.Avaddon.2
Sophos ML/PE-A + Troj/Ransom-GCZ
BitDefenderTheta Gen:NN.ZexaF.34628.brW@aSd6T5o
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.Win32.AVADDON.YJAF-A
Emsisoft Gen:Variant.Ransom.Avaddon.2 (B)
SentinelOne Static AI – Suspicious PE
Avira TR/AD.RansomHeur.oiyco
eGambit Unsafe.AI_Score_90%
Microsoft Trojan:Win32/Ulise!MSR
Arcabit Trojan.Ransom.Avaddon.2
AegisLab Trojan.Win32.Rack.trre
GData Gen:Variant.Ransom.Avaddon.2
TACHYON Ransom/W32.Avaddon.1078784
AhnLab-V3 Malware/Win32.RL_Generic.R341088
McAfee GenericRXKY-JM!19E8D1AAC41F
MAX malware (ai score=100)
VBA32 TrojanRansom.Agent
Malwarebytes Ransom.FileCryptor
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom.Win32.AVADDON.YJAF-A
Rising Ransom.Avaddon!1.C7A8 (CLOUD)
Yandex Trojan.Filecoder!UYhn/yw1nJ4
Ikarus Trojan-Ransom.Avaddon
MaxSecure Trojan.Malware.101961234.susgen
Fortinet W32/Rack.IYP!tr.ransom
AVG Win32:TrojanX-gen [Trj]
Qihoo-360 Win32/Ransom.Generic.HwoC9psA

How to remove Win32/Filecoder.Avaddon.A virus?

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.A 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.A you can always ask me in the comments for getting help.

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  1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server
  2. GridinSoft Anti-Malware Review from HowToFix site:
  3. More information about GridinSoft 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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