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

What is Symmi.81924 infection?

In this short article you will certainly locate about the interpretation of Symmi.81924 and also its negative effect on your computer system. Such ransomware are a type of malware that is clarified by on the internet fraudulences to require paying the ransom by a sufferer.

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In the majority of the cases, Symmi.81924 ransomware will advise its targets to initiate funds transfer for the objective of counteracting the changes that the Trojan infection has introduced to the sufferer’s gadget.

Symmi.81924 Summary

These alterations can be as complies with:

  • 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.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents found on the victim’s hard drive — so the victim can no more utilize the information;
  • Preventing routine access to the sufferer’s workstation;


The most common networks whereby Symmi.81924 Trojans are injected are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a consequence of user winding up on a resource that organizes a harmful software program;

As soon as the Trojan is efficiently infused, it will certainly either cipher the information on the target’s computer or stop the device from working in a correct manner – while also positioning a ransom money note that points out the requirement for the targets to impact the settlement for the objective of decrypting the papers or recovering the data system back to the first condition. In many circumstances, the ransom money note will certainly show up when the customer restarts the PC after the system has already been damaged.

Symmi.81924 distribution networks.

In numerous corners of the globe, Symmi.81924 grows by jumps and also bounds. However, the ransom money notes and techniques of extorting the ransom amount may differ relying on particular regional (regional) setups. The ransom notes and also tricks of obtaining the ransom money amount might differ depending on certain regional (regional) settings.

Ransomware injection

For instance:

    Faulty alerts concerning unlicensed software application.

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

    Faulty statements regarding prohibited content.

    In countries where software piracy is less prominent, this technique is not as effective for the cyber frauds. Alternatively, the Symmi.81924 popup alert might incorrectly claim to be stemming from a law enforcement institution and also will certainly report having located youngster porn or various other unlawful information on the tool.

    Symmi.81924 popup alert might incorrectly assert to be acquiring from a regulation enforcement organization and also will certainly report having situated kid pornography or other unlawful data on the device. The alert will likewise consist of a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: 07BC1609
md5: 9db27aa3f33d31ba701f5215d7410fb4
name: 9DB27AA3F33D31BA701F5215D7410FB4.mlw
sha1: 5f5c79362b5bac80f8a6160feb5294f5c9988a7b
sha256: 4ed61319cbb48749dc92b4b423deca263a84592c9e1af44b1dbcf79a8960a2d3
sha512: aac76432b74bea70ecd197afcba3c929fc29a4ca2aa1aaec01d468fec871de0928b9ef1f993552f26be8f1250101ee813ee72cd0dc5b47033a12bce8b5906d13
ssdeep: 12288:O0EZRk37TOtV8zklZYiaZ40FuaLo9uqD0zHOLsCG7IctI:O1OWtV8ujaO0hqUuBuIct
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Symmi.81924 also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Symmi.81924
Qihoo-360 HEUR/QVM05.1.Malware.Gen
ALYac Gen:Variant.Symmi.81924
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.Save.a
BitDefender Gen:Variant.Symmi.81924
K7GW Trojan ( 0035d94f1 )
K7AntiVirus Trojan ( 0035d94f1 )
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Malware-gen
Kaspersky UDS:DangerousObject.Multi.Generic
Alibaba Trojan:Win32/LockScreen.2e923869
NANO-Antivirus Trojan.Win32.Ransom.edpoye
Rising Trojan.LockScreen!8.1AF (TFE:4:gq5S1QD7y7C)
Ad-Aware Gen:Variant.Symmi.81924
Emsisoft Gen:Variant.Symmi.81924 (B)
F-Secure Heuristic.HEUR/AGEN.1105496
Zillya Trojan.LockScreen.Win32.9004
McAfee-GW-Edition BehavesLike.Win32.DealPly.jh
Sophos Mal/Generic-S
Ikarus Trojan-PWS.Win32.Zbot
Jiangmin Trojan/Generic.aivmv
Avira HEUR/AGEN.1105496
MAX malware (ai score=100)
Microsoft Trojan:Win32/Occamy.C4E
Arcabit Trojan.Symmi.D14004
ZoneAlarm UDS:DangerousObject.Multi.Generic
GData Gen:Variant.Symmi.81924
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Foreign.C471313
Acronis suspicious
McAfee PWS-Zbot.gen.bhc
VBA32 Trojan.Occamy
Malwarebytes Malware.Heuristic.1006
Panda Trj/Pacrypt.E
ESET-NOD32 Win32/LockScreen.AKG
TrendMicro-HouseCall TSPY_ZBOT.SMSK
Tencent Win32.Trojan.Lockscreen.Hxpy
Yandex Trojan.LockScreen!fhHtqpFC8Dc
SentinelOne Static AI – Malicious PE
eGambit Generic.Malware
Fortinet W32/Zbot.AAO!tr
BitDefenderTheta AI:Packer.C88E3D6021
AVG Win32:Malware-gen
Cybereason malicious.3f33d3

How to remove Symmi.81924 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 Symmi.81924 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Symmi.81924 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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