Trojan.Win32.DelShad

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

What is Trojan.Win32.DelShad infection?

In this post you will certainly locate about the definition of Trojan.Win32.DelShad as well as its unfavorable effect on your computer. Such ransomware are a type of malware that is clarified by on the internet fraudulences to demand paying the ransom by a sufferer.

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In the majority of the cases, Trojan.Win32.DelShad infection will advise its sufferers to launch funds transfer for the function of counteracting the changes that the Trojan infection has presented to the target’s device.

Trojan.Win32.DelShad Summary

These alterations can be as adheres to:

  • 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;
  • 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.
  • Creates an autorun.inf file;
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • 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 papers located on the target’s hard disk — so the target can no more use the information;
  • 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.

Trojan.Win32.DelShad

One of the most normal networks through which Trojan.Win32.DelShad Ransomware Trojans are injected are:

  • By ways of phishing e-mails;
  • As an effect of individual winding up on a source that organizes a malicious software;

As soon as the Trojan is successfully injected, it will either cipher the information on the sufferer’s computer or protect against the tool from operating in a correct way – while additionally placing a ransom money note that states the demand for the victims to impact the settlement for the objective of decrypting the records or recovering the documents system back to the initial problem. In most instances, the ransom money note will show up when the customer reboots the COMPUTER after the system has currently been damaged.

Trojan.Win32.DelShad distribution networks.

In different edges of the world, Trojan.Win32.DelShad expands by leaps and also bounds. Nonetheless, the ransom money notes as well as techniques of obtaining the ransom money amount might differ depending on particular neighborhood (local) settings. The ransom notes and also techniques of obtaining the ransom quantity might differ depending on certain neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty notifies concerning unlicensed software application.

    In particular areas, the Trojans frequently wrongfully report having detected some unlicensed applications made it possible for on the victim’s tool. The sharp after that requires the customer to pay the ransom.

    Faulty declarations concerning unlawful content.

    In nations where software program piracy is much less preferred, this technique is not as efficient for the cyber fraudulences. Additionally, the Trojan.Win32.DelShad popup alert may falsely assert to be originating from a law enforcement establishment as well as will report having situated child porn or various other prohibited data on the gadget.

    Trojan.Win32.DelShad popup alert may falsely claim to be acquiring from a regulation enforcement organization as well as will report having situated youngster porn or other prohibited information on the device. The alert will similarly have a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: AE51ACC4
md5: 2668a7eb9a73207edd5857f6d0023a83
name: 2668A7EB9A73207EDD5857F6D0023A83.mlw
sha1: 71860c647b3633728cc494bc7c07e96ebb928a80
sha256: 78f1979e88eeb1673ed0dbc769d142127ce245a6aad82688fd8ba37c32cd49c7
sha512: ed746339d70e7f0c663b86fd31e48477a2d4ea3a9987b2463ab34121abccc5eb279c3d6e0d9dbd94319d7130ff61617bcab3e8947bcdb6b1f2de1f80631dc209
ssdeep: 12288:TPp2RokZ8Y4eJV02qv7iIFdMl8Vqy3nxkAMRydDaODzsDn7uo8DeBxSo89JWs:TPIleYxqv7iIFdMl8VqSxORydmianrb
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

Trojan.Win32.DelShad also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Ransom.Avaddon.3
FireEye Gen:Variant.Ransom.Avaddon.3
Qihoo-360 Win32/Trojan.cc9
ALYac Trojan.Ransom.Avaddon
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 0056e22f1 )
BitDefender Gen:Variant.Ransom.Avaddon.3
K7GW Trojan ( 0056e22f1 )
CrowdStrike win/malicious_confidence_100% (W)
BitDefenderTheta Gen:NN.ZexaF.34608.Uu0@aeyIkihi
Cyren W32/Ransom.SBGJ-2203
Symantec Ransom.Avaddon
ESET-NOD32 a variant of Win32/Filecoder.Avaddon.C
APEX Malicious
Avast Win32:RansomX-gen [Ransom]
Kaspersky HEUR:Trojan.Win32.DelShad.gen
Alibaba Ransom:Win32/generic.ali2000010
NANO-Antivirus Trojan.Win32.DelShad.iksgum
AegisLab Trojan.Win32.DelShad.4!c
Rising Ransom.Avaddon!1.C7A8 (CLOUD)
Ad-Aware Gen:Variant.Ransom.Avaddon.3
Sophos Mal/Generic-S
F-Secure Trojan.TR/RansomX.cjsfa
DrWeb Trojan.DownLoader36.19650
Zillya Trojan.Filecoder.Win32.17015
TrendMicro Ransom.Win32.AVADDON.SMTHA
McAfee-GW-Edition BehavesLike.Win32.PUPXDO.bh
Emsisoft Gen:Variant.Ransom.Avaddon.3 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan.DelShad.avg
Avira TR/RansomX.cjsfa
MAX malware (ai score=80)
Antiy-AVL Trojan/Win32.DelShad
Microsoft Ransom:Win32/Avaddon!rfn
Arcabit Trojan.Ransom.Avaddon.3
AhnLab-V3 Malware/Win32.Ransom.C4247459
ZoneAlarm HEUR:Trojan.Win32.DelShad.gen
GData Gen:Variant.Ransom.Avaddon.3
Cynet Malicious (score: 100)
McAfee GenericRXAA-AA!2668A7EB9A73
VBA32 Trojan.DelShad
Malwarebytes Ransom.Avaddon
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom.Win32.AVADDON.SMTHA
Tencent Malware.Win32.Gencirc.10ce2824
Yandex Trojan.DelShad!SL5ysrFzXeQ
Ikarus Trojan-Ransom.Avaddon
eGambit Unsafe.AI_Score_100%
Fortinet W32/Avaddon.C!tr.ransom
AVG Win32:RansomX-gen [Ransom]
Cybereason malicious.b9a732
Paloalto generic.ml
MaxSecure Trojan.Malware.74279478.susgen

How to remove Trojan.Win32.DelShad 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 Trojan.Win32.DelShad 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 Trojan.Win32.DelShad 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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