Ransom.Avaddon.3 (B)

Written by Robert Bailey

What is Ransom.Avaddon.3 (B) infection?

In this post you will discover regarding the interpretation of Ransom.Avaddon.3 (B) and its adverse impact on your computer. Such ransomware are a form of malware that is elaborated by online fraudulences to demand paying the ransom money by a target.

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In the majority of the instances, Ransom.Avaddon.3 (B) infection will instruct its targets to launch funds transfer for the objective of counteracting the modifications that the Trojan infection has actually introduced to the target’s device.

Ransom.Avaddon.3 (B) Summary

These modifications can be as adheres to:

  • At least one process apparently crashed during execution;
  • Attempts to connect to a dead IP:Port (3 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.
  • Possible date expiration check, exits too soon after checking local time;
  • A process attempted to delay the analysis task.;
  • At least one IP Address, Domain, or File Name was found in a crypto call;
  • 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.
  • Performs some HTTP requests;
  • 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.
  • Checks the system manufacturer, likely for anti-virtualization;
  • 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 situated on the target’s hard disk drive — so the sufferer can no longer make use of the information;
  • Preventing routine access to the target’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.xyz Gen:Variant.Ransom.Avaddon.3
a.tomx.xyz Gen:Variant.Ransom.Avaddon.3

Ransom.Avaddon.3 (B)

The most common channels through which Ransom.Avaddon.3 (B) Trojans are infused are:

  • By means of phishing emails;
  • As a repercussion of customer ending up on a resource that organizes a destructive software application;

As quickly as the Trojan is efficiently injected, it will either cipher the data on the target’s computer or stop the tool from working in an appropriate fashion – while also positioning a ransom money note that points out the need for the victims to effect the repayment for the function of decrypting the papers or restoring the data system back to the first condition. In a lot of instances, the ransom money note will certainly come up when the customer reboots the COMPUTER after the system has actually already been harmed.

Ransom.Avaddon.3 (B) circulation networks.

In different edges of the world, Ransom.Avaddon.3 (B) expands by leaps and also bounds. Nevertheless, the ransom notes as well as methods of extorting the ransom quantity might differ depending upon particular regional (regional) settings. The ransom money notes and also methods of obtaining the ransom money quantity may differ depending on particular local (regional) setups.

Ransomware injection

As an example:

    Faulty informs concerning unlicensed software program.

    In certain areas, the Trojans commonly wrongfully report having identified some unlicensed applications allowed on the victim’s device. The sharp after that requires the user to pay the ransom.

    Faulty declarations about unlawful material.

    In countries where software application piracy is less prominent, this technique is not as reliable for the cyber fraudulences. Additionally, the Ransom.Avaddon.3 (B) popup alert might incorrectly claim to be originating from a police establishment and will report having situated youngster pornography or other unlawful data on the device.

    Ransom.Avaddon.3 (B) popup alert may wrongly claim to be deriving from a regulation enforcement institution and also will certainly report having situated kid porn or various other illegal data on the gadget. The alert will in a similar way contain a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: B170E563
md5: 4d6ef550cecc0bd9883833608dd16a00
name: 4D6EF550CECC0BD9883833608DD16A00.mlw
sha1: 85cbe22635f92114032d74a3c7c4b56e1492e0c2
sha256: 1e8df42c2e51f919886eaf955c8fc9630ba9aca8bba47b1541ead131feb55a11
sha512: 6867183d3ddea9a1fd2e815da21becd76c755fddeec7bb5a636a3f9ba9479945a1ec5790a07965d25679ba4a631d84b0071cf6667be1e3ced500ea75801ae7df
ssdeep: 12288:w8fM15LL43eYsxN2VH/h51UtfiA+fEJJrR4wPQAReV3foOBuue9vL+Fmk3:w8fMjE36N2VH/h51UtfiAuyhdPQARsg
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.Avaddon.3 (B) also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Ransom.Avaddon.3
FireEye Generic.mg.4d6ef550cecc0bd9
CAT-QuickHeal Trojan.Delshad
Qihoo-360 Win32/Ransom.Avaddon.HwoChgsA
ALYac Trojan.Ransom.Avaddon
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
AegisLab Trojan.Win32.DelShad.4!c
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 0056dfc91 )
BitDefender Gen:Variant.Ransom.Avaddon.3
K7GW Trojan ( 0056dfc91 )
Cybereason malicious.0cecc0
BitDefenderTheta Gen:NN.ZexaF.34590.Vu0@auF7Xumi
Cyren W32/Ransom.ROIA-1640
Symantec Ransom.Avaddon
ESET-NOD32 a variant of Win32/Filecoder.Avaddon.C
APEX Malicious
Avast Win32:RansomX-gen [Ransom]
ClamAV Win.Ransomware.Avaddon-9833142-0
Kaspersky HEUR:Trojan.Win32.DelShad.gen
Alibaba Ransom:Win32/Avaddon.49de6ba8
NANO-Antivirus Trojan.Win32.DelShad.ihwghr
Rising Ransom.Avaddon!1.C7A8 (CLOUD)
Ad-Aware Gen:Variant.Ransom.Avaddon.3
Emsisoft Gen:Variant.Ransom.Avaddon.3 (B)
F-Secure Trojan.TR/AD.RansomHeur.AV
DrWeb Trojan.MulDrop16.9770
Zillya Trojan.Filecoder.Win32.17634
TrendMicro Ransom.Win32.AVADDON.SMTHA
McAfee-GW-Edition BehavesLike.Win32.PUPXDO.bh
Sophos Mal/Generic-S
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan.DelShad.ayx
Webroot W32.Trojan.Gen
Avira TR/AD.RansomHeur.AV
Antiy-AVL Trojan/Win32.DelShad
Microsoft Ransom:Win32/Avaddon.MK!MTB
Arcabit Trojan.Ransom.Avaddon.3
AhnLab-V3 Malware/Win32.Ransom.C4280530
ZoneAlarm HEUR:Trojan.Win32.DelShad.gen
GData Gen:Variant.Ransom.Avaddon.3
Cynet Malicious (score: 100)
McAfee GenericRXAA-AA!4D6EF550CECC
MAX malware (ai score=100)
VBA32 Trojan.DelShad
Malwarebytes Ransom.Avaddon
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom.Win32.AVADDON.SMTHA
Tencent Malware.Win32.Gencirc.11b8d28f
Yandex Trojan.DelShad!RbPUucEWYQs
Ikarus Trojan-Ransom.Avaddon
eGambit Unsafe.AI_Score_100%
Fortinet W32/Avaddon.C!tr.ransom
AVG Win32:RansomX-gen [Ransom]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (W)

How to remove Ransom.Avaddon.3 (B) 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.Avaddon.3 (B) 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.Avaddon.3 (B) 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: 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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