Trojan-Ransom.Win32.Avaddon.k

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

What is Trojan-Ransom.Win32.Avaddon.k infection?

In this article you will locate regarding the definition of Trojan-Ransom.Win32.Avaddon.k and also its negative impact on your computer. Such ransomware are a kind of malware that is elaborated by on-line fraudulences to demand paying the ransom by a target.

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Most of the cases, Trojan-Ransom.Win32.Avaddon.k infection will advise its victims to initiate funds transfer for the function of reducing the effects of the changes that the Trojan infection has presented to the victim’s device.

Trojan-Ransom.Win32.Avaddon.k Summary

These modifications can be as adheres to:

  • At least one process apparently crashed during execution;
  • 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;
  • Uses Windows utilities for basic functionality;
  • 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!
  • 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
  • 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.
  • 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 files found on the sufferer’s hard disk — so the sufferer can no more utilize the data;
  • Preventing regular 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.xyzTrojan.Ransom.Avaddon
a.tomx.xyzTrojan.Ransom.Avaddon

Trojan-Ransom.Win32.Avaddon.k

The most typical networks through which Trojan-Ransom.Win32.Avaddon.k Ransomware Trojans are injected are:

  • By means of phishing e-mails;
  • As a consequence of individual winding up on a resource that holds a harmful software application;

As soon as the Trojan is efficiently infused, it will certainly either cipher the data on the target’s PC or avoid the gadget from operating in a correct way – while likewise placing a ransom note that points out the demand for the sufferers to effect the settlement for the objective of decrypting the papers or bring back the documents system back to the initial condition. In most circumstances, the ransom money note will certainly turn up when the client restarts the PC after the system has actually already been damaged.

Trojan-Ransom.Win32.Avaddon.k distribution channels.

In different edges of the world, Trojan-Ransom.Win32.Avaddon.k grows by leaps and also bounds. Nonetheless, the ransom money notes and techniques of extorting the ransom amount may differ depending on certain regional (regional) setups. The ransom notes and also techniques of extorting the ransom amount may vary depending on certain regional (local) settings.

Ransomware injection

For example:

    Faulty signals about unlicensed software program.

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

    Faulty statements regarding illegal web content.

    In countries where software application piracy is much less preferred, this technique is not as efficient for the cyber fraudulences. Alternatively, the Trojan-Ransom.Win32.Avaddon.k popup alert may incorrectly declare to be stemming from a law enforcement establishment and will report having situated youngster porn or various other illegal data on the tool.

    Trojan-Ransom.Win32.Avaddon.k popup alert may falsely declare to be acquiring from a law enforcement organization as well as will certainly report having located child pornography or other unlawful data on the gadget. The alert will likewise include a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: 160BB9C6
md5: c497f83e28e9f3a7fdebc64ab1a1ea23
name: C497F83E28E9F3A7FDEBC64AB1A1EA23.mlw
sha1: 4eee6846c84fb3eb1b73ca085a9ee016aa0bedb9
sha256: 6c68f61ddd1c17b8bef5080ee8b113ebaa90c415a11a137f74a73429fb79877d
sha512: b761e1e9de8e2a1ad43ef86b3adf0839bdda26f02edcd7aaf701cbf930c38d8a9381794f6e2edc6959ef1ce23a23d3b68640c737ab817a03d533db1e3004dd42
ssdeep: 12288:MdoKBWsbx13KT6QJOwObtmUrn8R65jj07LkSluxwuV5DYPpJea:MRB1bx13KT6QJOwOJmUDI+j07Pc0
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

Trojan-Ransom.Win32.Avaddon.k also known as:

GridinSoftTrojan.Ransom.Gen
K7AntiVirusTrojan ( 00577dec1 )
Elasticmalicious (high confidence)
DrWebTrojan.DownLoader34.37477
CynetMalicious (score: 100)
ALYacTrojan.Ransom.Avaddon
CylanceUnsafe
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_90% (W)
AlibabaRansom:Win32/Avaddon.497af223
K7GWTrojan ( 00577dec1 )
Cybereasonmalicious.e28e9f
CyrenW32/Ransom.OS.gen!Eldorado
SymantecTrojan.Gen.2
ESET-NOD32a variant of Win32/Filecoder.Avaddon.C
APEXMalicious
AvastWin32:RansomX-gen [Ransom]
ClamAVWin.Ransomware.Avaddon-9866699-0
KasperskyTrojan-Ransom.Win32.Avaddon.k
BitDefenderGen:Heur.Ransom.REntS.Gen.1
NANO-AntivirusTrojan.Win32.DelShad.hurixt
MicroWorld-eScanGen:Heur.Ransom.REntS.Gen.1
TencentWin32.Trojan.Filecoder.Syhr
Ad-AwareGen:Heur.Ransom.REntS.Gen.1
SophosTroj/Avaddon-A
ComodoMalware@#2y3u45nz1fv6i
BitDefenderThetaGen:NN.ZexaF.34722.Su0@augqTNai
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom.Win32.AVADDON.THIBBBO
McAfee-GW-EditionRDN/Ransom
FireEyeGeneric.mg.c497f83e28e9f3a7
EmsisoftGen:Heur.Ransom.REntS.Gen.1 (B)
SentinelOneStatic AI – Suspicious PE
JiangminTrojan.DelShad.ahp
AviraTR/AD.RansomHeur.obmwf
eGambitUnsafe.AI_Score_100%
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftRansom:Win32/Avaddon.C!MTB
AegisLabTrojan.Win32.DelShad.4!c
ZoneAlarmTrojan-Ransom.Win32.Avaddon.k
GDataGen:Heur.Ransom.REntS.Gen.1
TACHYONRansom/W32.DelShad.731136
AhnLab-V3Trojan/Win32.Ransomlock.R350867
McAfeeRDN/Ransom
MAXmalware (ai score=100)
VBA32Trojan.DelShad
MalwarebytesRansom.Avaddon
PandaTrj/Genetic.gen
TrendMicro-HouseCallRansom.Win32.AVADDON.THIBBBO
RisingRansom.Avaddon!1.C7A8 (CLASSIC)
YandexTrojan.Avaddon!4RmUECPZ+EA
IkarusTrojan-Ransom.Avaddon
MaxSecureTrojan.Malware.74279478.susgen
FortinetW32/Avaddon.C!tr.ransom
AVGWin32:RansomX-gen [Ransom]
Paloaltogeneric.ml

How to remove Trojan-Ransom.Win32.Avaddon.k 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 Trojan-Ransom.Win32.Avaddon.k 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 Trojan-Ransom.Win32.Avaddon.k 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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