Ransom:Win32/Avaddon!MTB

What is Ransom:Win32/Avaddon!MTB infection?

In this post you will locate about the interpretation of Ransom:Win32/Avaddon!MTB and also its unfavorable impact on your computer system. Such ransomware are a type of malware that is specified by on-line fraudulences to require paying the ransom money by a sufferer.

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In the majority of the instances, Ransom:Win32/Avaddon!MTB infection will certainly advise its victims to initiate funds move for the purpose of neutralizing the changes that the Trojan infection has actually introduced to the sufferer’s tool.

Ransom:Win32/Avaddon!MTB Summary

These alterations can be as follows:

  • 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.
  • 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;
  • 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 located on the victim’s hard disk drive — so the target can no more use the data;
  • Preventing normal 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!MTB

One of the most regular channels whereby Ransom:Win32/Avaddon!MTB Ransomware Trojans are infused are:

  • By ways of phishing e-mails;
  • As a consequence of customer ending up on a source that hosts a destructive software;

As quickly as the Trojan is efficiently infused, it will either cipher the information on the victim’s computer or prevent the tool from functioning in a proper manner – while likewise placing a ransom note that mentions the requirement for the targets to effect the payment for the purpose of decrypting the records or restoring the documents system back to the first problem. In a lot of instances, the ransom note will certainly turn up when the client reboots the COMPUTER after the system has currently been damaged.

Ransom:Win32/Avaddon!MTB circulation networks.

In numerous corners of the globe, Ransom:Win32/Avaddon!MTB grows by jumps and also bounds. Nevertheless, the ransom money notes as well as tricks of extorting the ransom money quantity may vary relying on specific regional (regional) settings. The ransom money notes and techniques of extorting the ransom money quantity might differ depending on particular regional (local) setups.

Ransomware injection

For example:

    Faulty informs concerning unlicensed software application.

    In particular areas, the Trojans often wrongfully report having discovered some unlicensed applications allowed on the sufferer’s device. The alert then requires the individual to pay the ransom money.

    Faulty statements regarding prohibited content.

    In countries where software program piracy is less prominent, this technique is not as efficient for the cyber scams. Conversely, the Ransom:Win32/Avaddon!MTB popup alert might falsely claim to be stemming from a law enforcement establishment as well as will certainly report having situated youngster porn or other prohibited data on the gadget.

    Ransom:Win32/Avaddon!MTB popup alert may incorrectly declare to be deriving from a law enforcement organization and will certainly report having located youngster porn or various other unlawful information on the device. The alert will in a similar way contain a need for the individual to pay the ransom.

Technical details

File Info:

crc32: D2DB50B5
md5: a4fac8df05ee106a9f658b9bb4f90d05
name: tstjs.exe
sha1: 8d02ab35f57f4a98679935c7fd6d20e5ceef585a
sha256: 7b4a13c022f0948f0a7ace0c2ea8b85af4f596338af14c3a1be2e63f55cbb335
sha512: c3d2c2f33637fed7b410ef15dce824ba21103fa970163a10759b1089e4814c0d22e7e22f5954ff7d08dd087ead822f7c8783a47ce1bd01d244728b3fb61f5bf7
ssdeep: 24576:gyDIINvTyuGvi+fkjfdWf2gTnxKHOV1AZuLbbbbpcA:gyDIMyuGvi+fkzdy1KHy1YqbbbbpcA
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!MTB also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware1
MicroWorld-eScan Gen:Variant.Razy.697743
FireEye Generic.mg.a4fac8df05ee106a
ALYac Trojan.Ransom.Avaddon
Cylance Unsafe
Sangfor Malware
K7AntiVirus Trojan ( 005690961 )
BitDefender Gen:Variant.Razy.697743
K7GW Trojan ( 005690961 )
TrendMicro Ransom.Win32.AVADDON.SMYJAF-A
BitDefenderTheta Gen:NN.ZexaF.34132.fv0@aiZZ6Foc
F-Prot W32/Filecoder.AE.gen!Eldorado
ESET-NOD32 a variant of Win32/Filecoder.Avaddon.A
TrendMicro-HouseCall Ransom.Win32.AVADDON.SMYJAF-A
Avast Win32:Malware-gen
GData Gen:Variant.Razy.697743
Kaspersky HEUR:Trojan.Win32.Generic
APEX Malicious
Tencent Win32.Trojan.Raas.Auto
Sophos Troj/Ransom-GAO
F-Secure Trojan.TR/AD.AvaddonRansom.ttggu
Emsisoft Gen:Variant.Razy.697743 (B)
Ikarus Trojan-Ransom.Avaddon
Cyren W32/Trojan.RWLF-9153
Jiangmin Trojan.Generic.fsaky
Webroot W32.Malware.Gen
Avira TR/AD.AvaddonRansom.ttggu
eGambit Unsafe.AI_Score_98%
MAX malware (ai score=100)
Antiy-AVL Trojan/Win32.Ymacco
Microsoft Ransom:Win32/Avaddon!MTB
Arcabit Trojan.Razy.DAA58F
AhnLab-V3 Malware/Win32.RL_Generic.R341088
ZoneAlarm HEUR:Trojan.Win32.Generic
Cynet Malicious (score: 85)
McAfee Artemis!A4FAC8DF05EE
VBA32 Trojan.Ymacco
Malwarebytes Ransom.Avaddon
Rising Ransom.Avaddon!1.C7A8 (CLOUD)
Fortinet W32/Filecoder.C314!tr.ransom
Ad-Aware Gen:Variant.Razy.697743
AVG Win32:Malware-gen
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 Generic/HEUR/QVM10.2.723A.Malware.Gen

How to remove Ransom:Win32/Avaddon!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

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.3.

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!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!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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