What is Trojan:Win64/Simda.A infection?

In this short article you will find regarding the interpretation of Trojan:Win64/Simda.A and its negative impact on your computer. Such ransomware are a type of malware that is specified by online fraudulences to demand paying the ransom money by a sufferer.

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In the majority of the cases, Trojan:Win64/Simda.A ransomware will instruct its victims to start funds transfer for the function of reducing the effects of the modifications that the Trojan infection has introduced to the target’s tool.

Trojan:Win64/Simda.A Summary

These alterations can be as adheres to:

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers found on the target’s hard drive — so the victim can no more utilize the information;
  • Preventing routine accessibility to the victim’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 normal channels where Trojan:Win64/Simda.A Trojans are infused are:

  • By ways of phishing e-mails;
  • As a repercussion of customer ending up on a resource that hosts a destructive software application;

As quickly as the Trojan is successfully injected, it will certainly either cipher the data on the target’s PC or prevent the gadget from functioning in an appropriate way – while additionally positioning a ransom money note that states the requirement for the victims to impact the settlement for the objective of decrypting the files or recovering the documents system back to the preliminary problem. In most circumstances, the ransom money note will show up when the customer reboots the COMPUTER after the system has currently been damaged.

Trojan:Win64/Simda.A distribution channels.

In various corners of the world, Trojan:Win64/Simda.A grows by leaps as well as bounds. However, the ransom money notes as well as methods of obtaining the ransom money quantity might differ depending on specific regional (regional) settings. The ransom notes and also tricks of obtaining the ransom money quantity may differ depending on certain neighborhood (local) settings.

Ransomware injection

For instance:

    Faulty notifies regarding unlicensed software program.

    In specific locations, the Trojans frequently wrongfully report having actually identified some unlicensed applications made it possible for on the sufferer’s device. The alert then demands the individual to pay the ransom money.

    Faulty statements about unlawful material.

    In nations where software piracy is less prominent, this method is not as reliable for the cyber frauds. Alternatively, the Trojan:Win64/Simda.A popup alert might incorrectly assert to be originating from a law enforcement establishment and will certainly report having located youngster pornography or various other prohibited data on the gadget.

    Trojan:Win64/Simda.A popup alert might wrongly assert to be deriving from a regulation enforcement establishment and will certainly report having located youngster pornography or other prohibited information on the device. The alert will similarly have a need for the individual to pay the ransom.

Technical details

File Info:

crc32: 2A9EF9E3
md5: b04e6c0bea1f153eff31a3d39e34071c
name: B04E6C0BEA1F153EFF31A3D39E34071C.mlw
sha1: 89012bc6e0333b43950c80def609a1ab9a570223
sha256: 74a00f4d994ed8dd1a8a5c4abf72ec4d30585aefbcc4b852aa30a81e6f08d828
sha512: 7144d760d1a5f11ec256eb03f8167585a705d4efea50c5e1ac3544bc1505403ed481e6e55e910f5942426f25601478c7a7b77a3269f746f14c6aec1f553b0f45
ssdeep: 6144:mN5m/Gx3yO+xTeQId4PY3HdBh+w72pjpry6epIpT4LB1:mJg3Ub72wIpct1
type: PE32+ executable (GUI) x86-64 (stripped to external PDB), for MS Windows

Version Info:

0: [No Data]

Trojan:Win64/Simda.A also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 004bc7511 )
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
ALYac Gen:Variant.Razy.447381
Cylance Unsafe
Zillya Trojan.Simda.Win64.57
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (D)
Alibaba Trojan:Win64/Simda.68072c7f
K7GW Trojan ( 004bc7511 )
Cybereason malicious.bea1f1
Symantec Trojan.Gen.2
ESET-NOD32 Win64/Simda.A
APEX Malicious
Avast Win64:Malware-gen
Kaspersky UDS:DangerousObject.Multi.Generic
BitDefender Gen:Variant.Razy.447381
MicroWorld-eScan Gen:Variant.Razy.447381
Ad-Aware Gen:Variant.Razy.447381
Sophos Mal/Generic-S
Comodo Malware@#1ar48pt1eh9ai
McAfee-GW-Edition BehavesLike.Win64.VirRansom.fc
Emsisoft Gen:Variant.Razy.447381 (B)
Avira HEUR/AGEN.1137886
eGambit Unsafe.AI_Score_99%
Antiy-AVL Trojan/Win64.Simda
Microsoft Trojan:Win64/Simda.A
Arcabit Trojan.Razy.D6D395
AegisLab Trojan.Multi.Generic.4!c
GData Gen:Variant.Razy.447381
Acronis suspicious
McAfee Artemis!B04E6C0BEA1F
MAX malware (ai score=100)
Rising Trojan.Simda!8.154 (CLOUD)
Ikarus Trojan.Win64.Crypt
MaxSecure Trojan.Malware.300983.susgen
Fortinet W64/Simda.BD!tr
AVG Win64:Malware-gen
Qihoo-360 Win32/Trojan.7be

How to remove Trojan:Win64/Simda.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 Trojan:Win64/Simda.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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Trojan:Win64/Simda.A you can always ask me in the comments for getting help.

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About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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