Ransom:Win32/Avaddon.B!MTB

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

What is Ransom:Win32/Avaddon.B!MTB infection?

In this post you will find concerning the interpretation of Ransom:Win32/Avaddon.B!MTB as well as its negative influence on your computer system. Such ransomware are a type of malware that is elaborated by online frauds to require paying the ransom money by a target.

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In the majority of the situations, Ransom:Win32/Avaddon.B!MTB virus will certainly instruct its targets to launch funds transfer for the objective of reducing the effects of the modifications that the Trojan infection has presented to the target’s tool.

Ransom:Win32/Avaddon.B!MTB Summary

These alterations can be as follows:

  • Attempts to connect to a dead IP:Port (1 unique times);
  • 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;
  • Performs some HTTP requests;
  • Unconventionial language used in binary resources: Russian;
  • Creates an autorun.inf file;
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • 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.
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • 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 situated on the target’s hard disk — so the sufferer can no more utilize the data;
  • Preventing normal 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
api.myip.com Ransom.Avaddon.S15456906
ocsp.digicert.com Ransom.Avaddon.S15456906

Ransom:Win32/Avaddon.B!MTB

One of the most common networks whereby Ransom:Win32/Avaddon.B!MTB Ransomware are injected are:

  • By means of phishing emails;
  • As a repercussion of customer ending up on a resource that hosts a malicious software program;

As soon as the Trojan is efficiently infused, it will either cipher the information on the sufferer’s PC or prevent the device from working in a proper way – while additionally positioning a ransom money note that states the requirement for the sufferers to effect the payment for the objective of decrypting the documents or restoring the file system back to the preliminary condition. In most instances, the ransom money note will certainly show up when the customer restarts the COMPUTER after the system has actually currently been harmed.

Ransom:Win32/Avaddon.B!MTB circulation networks.

In various edges of the globe, Ransom:Win32/Avaddon.B!MTB expands by leaps and bounds. Nevertheless, the ransom money notes as well as techniques of obtaining the ransom money amount may vary depending on particular neighborhood (local) settings. The ransom money notes and also techniques of extorting the ransom amount may differ depending on certain regional (local) settings.

Ransomware injection

For instance:

    Faulty signals about unlicensed software.

    In particular areas, the Trojans frequently wrongfully report having actually found some unlicensed applications allowed on the sufferer’s device. The sharp after that requires the individual to pay the ransom money.

    Faulty declarations about illegal web content.

    In countries where software program piracy is much less popular, this approach is not as reliable for the cyber fraudulences. Additionally, the Ransom:Win32/Avaddon.B!MTB popup alert might wrongly assert to be originating from a police organization and will report having located kid pornography or other unlawful information on the tool.

    Ransom:Win32/Avaddon.B!MTB popup alert may falsely claim to be obtaining from a regulation enforcement establishment as well as will certainly report having located child pornography or other unlawful data on the device. The alert will similarly include a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 60E5158D
md5: 6a7d5dbf267f7a04e9f433cef1742843
name: 6A7D5DBF267F7A04E9F433CEF1742843.mlw
sha1: 3ab4df07c31b9c4efa55e7a4eb91d25c17c7e0b0
sha256: 522af082b45a97afb7e5a4c1cbff026c5f6f13622d94df2ccfe238c70edd1842
sha512: 713d6fe49fb597d7cd5939c8167e3c5a1f954b218b1ed9ce7e9fd07e673b81bbfa4b5730ba07b64bb38fb4754586ba851ea1c1ff3e9a88a8193c1c85fec0cd55
ssdeep: 24576:BAJo/boXsD8XWKsitbOPDp2x3pX/Cbbbbpc:BAkoXsD8XWKdUp2tpPCbbbbpc
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

Ransom:Win32/Avaddon.B!MTB also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 005690961 )
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader33.59602
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Avaddon.S15456906
ALYac Trojan.Ransom.Avaddon
Cylance Unsafe
Zillya Trojan.DelShad.Win32.543
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Avaddon.adebb8a2
K7GW Trojan ( 005690961 )
Cyren W32/Trojan.QJWO-6958
Symantec Downloader
ESET-NOD32 a variant of Win32/Filecoder.Avaddon.A
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Ransomware.Avaddon-9853682-0
Kaspersky Trojan-Ransom.Win32.Avaddon.f
NANO-Antivirus Trojan.Win32.DelShad.hmprxn
Tencent Malware.Win32.Gencirc.11a010d4
Sophos Mal/Generic-S
Comodo Malware@#12vp8clikv6sp
BitDefenderTheta Gen:NN.ZexaF.34722.dr0@aeWQjSgc
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.Win32.AVADDON.SMYJAF-A
McAfee-GW-Edition GenericRXIQ-XE!6A7D5DBF267F
FireEye Generic.mg.6a7d5dbf267f7a04
Jiangmin Trojan.DelShad.abb
Avira TR/Redcap.cdhqk
Antiy-AVL Trojan/Generic.ASMalwS.30AA592
Microsoft Ransom:Win32/Avaddon.B!MTB
AegisLab Trojan.Win32.DelShad.trrD
TACHYON Ransom/W32.DelShad.1099264
McAfee GenericRXIQ-XE!6A7D5DBF267F
MAX malware (ai score=100)
VBA32 BScope.Trojan.DelShad
Malwarebytes Ransom.Avaddon
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom.Win32.AVADDON.SMYJAF-A
Rising Ransom.Avaddon!1.C7A8 (CLASSIC)
Yandex Trojan.Filecoder!AJ61tjyJCU0
Ikarus Trojan-Ransom.Avaddon
Fortinet W32/Filecoder.C314!tr.ransom
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove Ransom:Win32/Avaddon.B!MTB 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 Ransom:Win32/Avaddon.B!MTB 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 Ransom:Win32/Avaddon.B!MTB 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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