Symmi.71941

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

What is Symmi.71941 infection?

In this post you will locate concerning the interpretation of Symmi.71941 and its unfavorable effect on your computer system. Such ransomware are a kind of malware that is elaborated by online fraudulences to require paying the ransom by a sufferer.

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In the majority of the situations, Symmi.71941 infection will instruct its targets to start funds move for the purpose of reducing the effects of the amendments that the Trojan infection has presented to the target’s device.

Symmi.71941 Summary

These alterations can be as follows:

  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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.
  • 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.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • Executed a process and injected code into it, probably while unpacking;
  • 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;
  • 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.
  • Creates a copy of itself;
  • Ciphering the papers located on the target’s 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.
Similar behavior
Related domains
z.whorecord.xyz Ransom.Crysis.A5
a.tomx.xyz Ransom.Crysis.A5

Symmi.71941

One of the most common channels whereby Symmi.71941 Ransomware Trojans are injected are:

  • By means of phishing e-mails;
  • As a consequence of customer ending up on a source that hosts a malicious software program;

As quickly as the Trojan is effectively infused, it will certainly either cipher the information on the target’s computer or stop the gadget from functioning in an appropriate way – while additionally positioning a ransom money note that states the demand for the targets to impact the payment for the objective of decrypting the records or bring back the data system back to the initial problem. In most instances, the ransom money note will come up when the customer restarts the PC after the system has already been harmed.

Symmi.71941 circulation channels.

In various corners of the globe, Symmi.71941 expands by leaps and also bounds. Nonetheless, the ransom money notes as well as tricks of extorting the ransom money quantity might differ depending upon particular regional (local) settings. The ransom money notes as well as methods of extorting the ransom amount might vary depending on specific regional (local) settings.

Ransomware injection

As an example:

    Faulty notifies about unlicensed software.

    In particular locations, the Trojans commonly wrongfully report having actually discovered some unlicensed applications made it possible for on the victim’s tool. The alert then demands the customer to pay the ransom.

    Faulty declarations about prohibited content.

    In countries where software piracy is much less preferred, this technique is not as effective for the cyber frauds. Additionally, the Symmi.71941 popup alert may falsely assert to be stemming from a police establishment as well as will report having situated youngster porn or various other prohibited information on the gadget.

    Symmi.71941 popup alert might wrongly assert to be acquiring from a legislation enforcement establishment and also will report having situated child pornography or other unlawful information on the gadget. The alert will likewise contain a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 5A425D30
md5: 071535762150454cb190fd27e78272a8
name: 071535762150454CB190FD27E78272A8.mlw
sha1: f94276cecd687c2991add012402eb39818afba56
sha256: dd8a697bde5be1501a65181d3627bfef1fd2b4c5eca1126ee69b35dd53e82cb5
sha512: e5fabd8792ed2066a4cfc6417be818103f93e2b44236609ac266fbcc2b3e689bc41e286f37a2507a57b25e8c8bc42f270df39a51185a4a557af45f87c721c337
ssdeep: 3072:m12tT3w5tPNbySzzlEKSZFbfuADys99PiWUkNqBjyu6:q2NGPsS/e7n7D5ribkgBjy
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Symmi.71941 also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
MicroWorld-eScan Gen:Variant.Symmi.71941
FireEye Generic.mg.071535762150454c
CAT-QuickHeal Ransom.Crysis.A5
ALYac Gen:Variant.Symmi.71941
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
AegisLab Trojan.Win32.Crusis.j!c
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 00503bea1 )
BitDefender Gen:Variant.Symmi.71941
K7GW Trojan ( 00503bea1 )
Cybereason malicious.621504
Symantec Ransom.Cerber!g17
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Win32.Generic
Alibaba Trojan:Win32/Cerber.cf845fc4
NANO-Antivirus Trojan.Win32.Kryptik.elbhvi
Tencent Malware.Win32.Gencirc.10bb714e
Ad-Aware Gen:Variant.Symmi.71941
Emsisoft Gen:Variant.Symmi.71941 (B)
Comodo Malware@#xkrsi1v08i5f
F-Secure Heuristic.HEUR/AGEN.1127095
DrWeb Trojan.Encoder.5994
Zillya Trojan.Crusis.Win32.149
TrendMicro Ransom_HPLOCKY.SM4
McAfee-GW-Edition Ransomware-FMEE!071535762150
Sophos Mal/Generic-R + Mal/Cerber-V
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Crusis.hc
Webroot W32.Ransomware.Gen
Avira HEUR/AGEN.1127095
MAX malware (ai score=87)
Antiy-AVL Trojan/Win32.SGeneric
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/Wadhrama
Arcabit Trojan.Symmi.D11905
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Variant.Symmi.71941
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Cerber.R194429
McAfee Ransomware-FMEE!071535762150
VBA32 Trojan.Encoder
Malwarebytes Malware.Heuristic.1003
Panda Trj/Genetic.gen
ESET-NOD32 a variant of Generik.HCISGCW
TrendMicro-HouseCall Ransom_HPLOCKY.SM4
Rising Ransom.Cerber!8.3058 (CLOUD)
Yandex Trojan.GenAsa!SuZAy+Wc608
Ikarus Trojan.Win32.Filecoder
eGambit Unsafe.AI_Score_69%
Fortinet W32/Injector.DILW!tr
BitDefenderTheta Gen:NN.ZexaF.34590.kmJfa0@Q7ajm
AVG Win32:Malware-gen
Paloalto generic.ml
CrowdStrike win/malicious_confidence_90% (D)
Qihoo-360 HEUR/QVM11.1.5361.Malware.Gen

How to remove Symmi.71941 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 GridinSoft1

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.71941 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 Symmi.71941 you can always ask me in the comments for getting help.

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. 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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