Ransom:Win32/Avaddon.A!MTB

Written by Robert Bailey

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

In this short article you will certainly locate about the definition of Ransom:Win32/Avaddon.A!MTB and its adverse influence on your computer. Such ransomware are a form of malware that is elaborated by online fraudulences to demand paying the ransom money by a victim.

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Most of the cases, Ransom:Win32/Avaddon.A!MTB ransomware will certainly instruct its targets to launch funds move for the purpose of counteracting the amendments that the Trojan infection has introduced to the victim’s device.

Ransom:Win32/Avaddon.A!MTB Summary

These modifications can be as complies with:

  • 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;
  • 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.
  • 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 sufferer’s hard disk — so the target can no longer utilize the data;
  • 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.
Similar behavior
Related domains
api.myip.com Trojan.Ransom.Avaddon
ocsp.digicert.com Trojan.Ransom.Avaddon

Ransom:Win32/Avaddon.A!MTB

One of the most normal networks through which Ransom:Win32/Avaddon.A!MTB Ransomware Trojans are injected are:

  • By means of phishing emails;
  • As a repercussion of individual winding up on a resource that organizes a harmful software program;

As soon as the Trojan is successfully injected, it will either cipher the information on the victim’s computer or protect against the tool from functioning in an appropriate manner – while likewise placing a ransom note that mentions the need for the victims to impact the repayment for the objective of decrypting the papers or recovering the file system back to the first condition. In a lot of instances, the ransom note will show up when the customer restarts the COMPUTER after the system has currently been damaged.

Ransom:Win32/Avaddon.A!MTB distribution channels.

In numerous corners of the globe, Ransom:Win32/Avaddon.A!MTB expands by leaps and also bounds. Nonetheless, the ransom money notes and also tricks of obtaining the ransom money quantity might differ relying on certain regional (regional) setups. The ransom notes and also techniques of obtaining the ransom amount may differ depending on certain regional (regional) settings.

Ransomware injection

As an example:

    Faulty notifies about unlicensed software application.

    In specific areas, the Trojans typically wrongfully report having identified some unlicensed applications made it possible for on the victim’s device. The sharp then demands the individual to pay the ransom money.

    Faulty statements regarding unlawful content.

    In countries where software piracy is less popular, this approach is not as reliable for the cyber frauds. Additionally, the Ransom:Win32/Avaddon.A!MTB popup alert may falsely claim to be originating from a police organization and also will report having located youngster pornography or various other unlawful information on the device.

    Ransom:Win32/Avaddon.A!MTB popup alert might falsely assert to be acquiring from a regulation enforcement organization and also will report having located child pornography or various other illegal data on the gadget. The alert will similarly include a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: 786FF279
md5: dea3cd30c30338a50368cf65f7ff5f1f
name: DEA3CD30C30338A50368CF65F7FF5F1F.mlw
sha1: ce678c542226ef7099fa74a74cd2a664e4bec841
sha256: 0f081ea4e30ca05fc2977235bf239992b17fa9968b58b001990e4539f0899269
sha512: 4fc2dd833ef4e0251976a083b8d3e52732fb792c2a467f401be82c952354daef7b1aca84da1fc2a99bc52a4b3f5372799545eeb29c775b42d32a57f20e65c3a3
ssdeep: 24576:Y/M3X2S1dvOtYJx3n5r020E5BeGx/qrzmj1LNU5DECibbbbpcu:YC2SjTJx3n5r02V5UfzmpLIYbbbbpcu
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.A!MTB also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.SocelarsTI.Trojan
K7AntiVirus Trojan ( 005690961 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.32056
Cynet Malicious (score: 99)
CAT-QuickHeal Trojan.GenericRI.S14778408
ALYac Trojan.Ransom.Avaddon
Cylance Unsafe
Zillya Trojan.Filecoder.Win32.17145
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Avaddon.8c9f104f
K7GW Trojan ( 005690961 )
Cybereason malicious.0c3033
Cyren W32/Filecoder.AE.gen!Eldorado
ESET-NOD32 a variant of Win32/Filecoder.Avaddon.A
APEX Malicious
Avast Win32:TrojanX-gen [Trj]
ClamAV Win.Ransomware.Avaddon-9853682-0
Kaspersky HEUR:Trojan-Ransom.Win32.Generic
BitDefender Gen:Variant.Ransom.LockerGoga.11
NANO-Antivirus Trojan.Win32.Encoder.hmbhkt
MicroWorld-eScan Gen:Variant.Ransom.LockerGoga.11
Tencent Malware.Win32.Gencirc.119d4cfa
Ad-Aware Gen:Variant.Ransom.LockerGoga.11
Sophos Troj/Avaddon-A
Comodo Malware@#2figbnbrdzdsz
BitDefenderTheta Gen:NN.ZexaF.34690.fv0@a0xMyYdc
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.Win32.AVADDON.SMYJAF-A
McAfee-GW-Edition BehavesLike.Win32.Multiplug.th
FireEye Generic.mg.dea3cd30c30338a5
Emsisoft Gen:Variant.Ransom.LockerGoga.11 (B)
Avira TR/Redcap.wtkim
Antiy-AVL Trojan/Generic.ASMalwS.30A4309
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/Avaddon.A!MTB
Arcabit Trojan.Ransom.LockerGoga.11
AegisLab Trojan.Win32.Generic.4!c
GData Gen:Variant.Ransom.LockerGoga.11
AhnLab-V3 Malware/Win32.RL_Generic.R341088
McAfee GenericRXLH-VE!DEA3CD30C303
MAX malware (ai score=100)
VBA32 TrojanRansom.Avaddon
Malwarebytes Ransom.Avaddon
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom.Win32.AVADDON.SMYJAF-A
Rising Ransom.Avaddon!1.C7A8 (CLOUD)
Yandex Trojan.Filecoder!LyaxGGLw7fE
Ikarus Trojan-Ransom.Avaddon
MaxSecure Trojan.Malware.7164915.susgen
Fortinet W32/Avaddon.C!tr.ransom
AVG Win32:TrojanX-gen [Trj]
Paloalto generic.ml

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

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Ransom:Win32/Avaddon.A!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/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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