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

What is Win32/Adware.SecurityShield.A infection?

In this short article you will find about the definition of Win32/Adware.SecurityShield.A as well as its adverse effect on your computer. Such ransomware are a type of malware that is elaborated by online frauds to require paying the ransom by a sufferer.

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Most of the instances, Win32/Adware.SecurityShield.A infection will advise its victims to initiate funds transfer for the function of reducing the effects of the amendments that the Trojan infection has actually presented to the target’s gadget.

Win32/Adware.SecurityShield.A Summary

These alterations can be as follows:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • 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.;
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • Deletes its original binary from disk;
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the files found on the target’s hard disk drive — so the target can no more utilize the data;
  • Preventing normal 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.


One of the most typical networks whereby Win32/Adware.SecurityShield.A Trojans are infused are:

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

As quickly as the Trojan is effectively infused, it will either cipher the information on the victim’s computer or prevent the gadget from operating in an appropriate manner – while additionally positioning a ransom money note that states the requirement for the targets to impact the repayment for the function of decrypting the files or restoring the data system back to the initial problem. In a lot of instances, the ransom note will certainly turn up when the client restarts the PC after the system has actually already been damaged.

Win32/Adware.SecurityShield.A distribution networks.

In different edges of the globe, Win32/Adware.SecurityShield.A expands by leaps as well as bounds. Nonetheless, the ransom notes and tricks of extorting the ransom amount may vary depending upon certain local (regional) settings. The ransom notes as well as methods of extorting the ransom quantity might vary depending on specific local (local) settings.

Ransomware injection

For instance:

    Faulty alerts about unlicensed software program.

    In specific locations, the Trojans commonly wrongfully report having actually spotted some unlicensed applications enabled on the victim’s tool. The alert after that requires the user to pay the ransom.

    Faulty declarations concerning prohibited web content.

    In nations where software application piracy is much less preferred, this approach is not as efficient for the cyber scams. Conversely, the Win32/Adware.SecurityShield.A popup alert might incorrectly assert to be stemming from a police establishment as well as will certainly report having situated kid porn or other illegal data on the gadget.

    Win32/Adware.SecurityShield.A popup alert might wrongly claim to be acquiring from a regulation enforcement establishment and also will report having located child pornography or other prohibited data on the tool. The alert will similarly contain a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: 5CBC7B6C
md5: 02f1adf78225d68fda17b11920a68c0a
name: 02F1ADF78225D68FDA17B11920A68C0A.mlw
sha1: 2917deaf26fef106460fee14f7e1678ae3856fde
sha256: 203861e33e8933c4f8c590715a0c6d909becd1a1a1ee38106648c8edfd154e69
sha512: 66d0ab5592f8c62a4dec6d54b231ca43182c2a0e2f90ebae45ae0729a54956d000e77ff3f01c2e90d87e4dae25e576bae0656d34d74377a94c3e82b8f688b809
ssdeep: 3072:6rdcqkEDx0mYh5uw7Iw8Vh4yxn/26BAx00lUrRdU:QcqxCZhc0I7NnOf09RdU
type: PE32 executable (GUI) Intel 80386, for MS Windows, PECompact2 compressed

Version Info:

0: [No Data]

Win32/Adware.SecurityShield.A also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Trojan.Fakealert.20172
Cynet Malicious (score: 99)
CAT-QuickHeal Trojan.Generic
ALYac Gen:Heur.Mint.Porcupine.jiYfbyoRuncag
Cylance Unsafe
Zillya Trojan.FakeAV.Win32.100052
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (W)
Alibaba AdWare:Win32/SecurityShield.6f84eb6f
Cybereason malicious.78225d
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/Adware.SecurityShield.A
APEX Malicious
Avast Win32:Adware-gen [Adw]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Heur.Mint.Porcupine.jiYfbyoRuncag
NANO-Antivirus Riskware.Win32.SMWnd.daatt
MicroWorld-eScan Gen:Heur.Mint.Porcupine.jiYfbyoRuncag
Tencent Win32.Trojan.Generic.Gll
Ad-Aware Gen:Heur.Mint.Porcupine.jiYfbyoRuncag
Sophos Mal/FakeAV-PT
Comodo Malware@#35b025wog665r
F-Secure Heuristic.HEUR/AGEN.1112490
BitDefenderTheta Gen:NN.ZelphiF.34688.jiYfayoRunc
VIPRE Trojan.Win32.Generic.pak!cobra
TrendMicro TROJ_GEN.R002C0DDU21
Emsisoft Gen:Heur.Mint.Porcupine.jiYfbyoRuncag (B)
SentinelOne Static AI – Malicious PE
Jiangmin Hoax.SMWnd.nm
Avira HEUR/AGEN.1112490
eGambit Generic.Malware
Antiy-AVL Trojan/Win32.Unknown
Microsoft Rogue:Win32/Winwebsec
Arcabit Trojan.Mint.Porcupine.jiYfbyoRuncag
AegisLab Trojan.Win32.Generic.4!c
GData Gen:Heur.Mint.Porcupine.jiYfbyoRuncag
TACHYON Joke/W32.SMWnd.151552
AhnLab-V3 Trojan/Win32.FakeAV.R4992
MAX malware (ai score=100)
VBA32 BScope.Trojan.FakeAV
Panda Generic Malware
TrendMicro-HouseCall TROJ_GEN.R002C0DDU21
Rising Rogue.Winwebsec!8.B21 (CLOUD)
Yandex Adware.SecurityShield!Ur6Y4z8ABvk
Ikarus Hoax.Win32.SMWnd
MaxSecure Trojan.Malware.2350783.susgen
Fortinet W32/FakeAlert.ZSW!tr
AVG Win32:Adware-gen [Adw]

How to remove Win32/Adware.SecurityShield.A ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

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 Win32/Adware.SecurityShield.A 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 Win32/Adware.SecurityShield.A you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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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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