Trojan.Ransom.Avaddon

What is Trojan.Ransom.Avaddon infection?

In this post you will locate regarding the interpretation of Trojan.Ransom.Avaddon and also its negative effect on your computer system. Such ransomware are a form of malware that is clarified by on-line fraudulences to require paying the ransom money by a sufferer.

In the majority of the cases, Trojan.Ransom.Avaddon virus will certainly instruct its sufferers to start funds transfer for the objective of reducing the effects of the modifications that the Trojan infection has actually introduced to the sufferer’s tool.

Trojan.Ransom.Avaddon Summary

These modifications can be as complies with:

  • 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.
  • 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!
  • 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 create or modify system certificates;
  • Attempts to modify UAC prompt behavior;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the files located on the target’s hard disk — so the target 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.

Trojan.Ransom.Avaddon

One of the most regular networks where Trojan.Ransom.Avaddon are injected are:

  • By ways of phishing emails;
  • As an effect of user winding up on a resource that hosts a destructive software program;

As soon as the Trojan is successfully infused, it will either cipher the data on the target’s PC or prevent the gadget from operating in an appropriate fashion – while also positioning a ransom note that states the requirement for the sufferers to effect the repayment for the function of decrypting the records or restoring the file system back to the preliminary condition. In most circumstances, the ransom note will certainly turn up when the client restarts the COMPUTER after the system has actually currently been damaged.

Trojan.Ransom.Avaddon circulation networks.

In different edges of the globe, Trojan.Ransom.Avaddon expands by jumps as well as bounds. However, the ransom money notes and tricks of obtaining the ransom money amount may differ depending on specific neighborhood (regional) setups. The ransom notes and also tricks of extorting the ransom amount might vary depending on certain neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty alerts regarding unlicensed software application.

    In certain locations, the Trojans commonly wrongfully report having found some unlicensed applications made it possible for on the sufferer’s gadget. The alert after that demands the user to pay the ransom.

    Faulty statements concerning unlawful content.

    In nations where software piracy is much less preferred, this method is not as efficient for the cyber frauds. Conversely, the Trojan.Ransom.Avaddon popup alert may incorrectly declare to be deriving from a police organization and also will report having situated youngster pornography or various other unlawful information on the tool.

    Trojan.Ransom.Avaddon popup alert might incorrectly claim to be obtaining from a regulation enforcement establishment and will report having located child porn or other unlawful information on the tool. The alert will similarly contain a need for the individual to pay the ransom.

Technical details

File Info:

crc32: 1587A418md5: 69c7bd8e85701b304632de56cdbade48name: 69C7BD8E85701B304632DE56CDBADE48.mlwsha1: ec46455c52c70864af2c3b125aa2584be7c871ffsha256: 7872b311111cd0ce33d622c20b96bf326dc54d0412ae9e21d4cc7c050ba61edasha512: 1e0e8ade0987668cf0aed2b748258c0efc5c838424689f516fb76d58025a082f0488066cfb111b6aeb791b97f06359860716cd85d21973f90e837ec85d8cdae9ssdeep: 24576:TCsF9+OXLpMePfI8TgmBTCDqEbOpPtpFhYxfq:5eOXLpMePfzVTCD7gPtLhIfqtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: xa9 Microsoft Corporation. All rights reserved.InternalName: taskhost.exeFileVersion: 10.0.17763.831 (WinBuild.160101.0800)CompanyName: Microsoft CorporationProductName: Microsoftxae Windowsxae Operating SystemProductVersion: 10.0.17763.831FileDescription: Host Process for Windows TasksOriginalFilename: taskhost.exeTranslation: 0x0409 0x04b0

Trojan.Ransom.Avaddon also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 00577dec1 )
Elastic malicious (high confidence)
DrWeb Trojan.MulDrop16.12853
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.Avaddon
Cylance Unsafe
Zillya Trojan.Filecoder.Win32.18512
Sangfor Trojan.Win32.Save.a
K7GW Trojan ( 00577dec1 )
Cybereason malicious.e85701
Cyren W32/Ransom.OS.gen!Eldorado
Symantec Ransom.Avaddon!g1
ESET-NOD32 a variant of Win32/Filecoder.Avaddon.C
APEX Malicious
Avast Win32:Trojan-gen
ClamAV Win.Ransomware.Avaddon-9852658-0
Kaspersky HEUR:Trojan-Ransom.Win32.Generic
BitDefender Gen:Variant.Ransom.Avaddon.3
MicroWorld-eScan Gen:Variant.Ransom.Avaddon.3
Tencent Malware.Win32.Gencirc.10ce4b59
Ad-Aware Gen:Variant.Ransom.Avaddon.3
Sophos Troj/Avaddon-A
BitDefenderTheta Gen:NN.ZexaF.34692.Wu0@a8mRu3ni
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.Win32.AVADDON.SMTHA
McAfee-GW-Edition Trojan-FTMI!69C7BD8E8570
FireEye Generic.mg.69c7bd8e85701b30
Emsisoft Gen:Variant.Ransom.Avaddon.3 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan.DelShad.bhg
Avira HEUR/AGEN.1136765
eGambit Unsafe.AI_Score_100%
Antiy-AVL Trojan/Generic.ASMalwS.3198A1A
Microsoft Ransom:Win32/Avaddon.MK!MTB
ZoneAlarm HEUR:Trojan-Ransom.Win32.Generic
GData Gen:Variant.Ransom.Avaddon.3
TACHYON Ransom/W32.Avaddon.794112
AhnLab-V3 Malware/Win.Ransom.R421765
McAfee Trojan-FTMI!69C7BD8E8570
MAX malware (ai score=80)
Malwarebytes Ransom.Avaddon
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom.Win32.AVADDON.SMTHA
Rising Ransom.Avaddon!1.C7A8 (C64:YzY0OpNpkeoYdiDi)
Yandex Trojan.DelShad!9+W8qxhoK3A
Ikarus Trojan-Ransom.Avaddon
MaxSecure Trojan.Malware.74279478.susgen
Fortinet W32/Avaddon.C!tr.ransom
AVG Win32:Trojan-gen

How to remove Trojan.Ransom.Avaddon 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

Run the setup file.

Run Setup.exe
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 Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

If the guide doesn’t help you to remove Trojan.Ransom.Avaddon you can always ask me in the comments for getting help.

References

  1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server

About the author

Robert Bailey

Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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