Written by Robert Bailey

What is Trojan.Win32.Fsysna.dcul infection?

In this post you will find concerning the interpretation of Trojan.Win32.Fsysna.dcul and also its adverse effect on your computer. Such ransomware are a form of malware that is clarified by on-line frauds to require paying the ransom by a victim.

GridinSoft Anti-Malware Review

It is better to prevent, than repair and repent!

When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
GridinSoft Anti-Malware 6-day trial available.
EULA | Privacy Policy | GridinSoft

In the majority of the situations, Trojan.Win32.Fsysna.dcul ransomware will advise its targets to launch funds move for the function of reducing the effects of the changes that the Trojan infection has presented to the victim’s tool.

Trojan.Win32.Fsysna.dcul Summary

These alterations can be as adheres to:

  • 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Injection with CreateRemoteThread in a remote process;
  • 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.
  • Mimics the system’s user agent string for its own requests;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Executed a process and injected code into it, probably while unpacking;
  • Behavior consistent with a dropper attempting to download the next stage.;
  • Exhibits behavior characteristic of Locky ransomware;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers situated on the target’s hard disk — so the victim can no longer utilize the data;
  • Preventing normal access 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 regular channels where Trojan.Win32.Fsysna.dcul Ransomware are injected are:

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

As quickly as the Trojan is efficiently infused, it will either cipher the information on the sufferer’s computer or stop the gadget from operating in an appropriate fashion – while likewise putting a ransom money note that states the requirement for the victims to effect the payment for the objective of decrypting the papers or restoring the file system back to the preliminary problem. In the majority of circumstances, the ransom money note will come up when the customer reboots the COMPUTER after the system has actually already been harmed.

Trojan.Win32.Fsysna.dcul circulation channels.

In different edges of the globe, Trojan.Win32.Fsysna.dcul grows by jumps and bounds. Nevertheless, the ransom money notes and also techniques of extorting the ransom amount might vary depending on certain regional (local) settings. The ransom notes and also methods of extorting the ransom money amount might differ depending on specific regional (local) settings.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software program.

    In certain locations, the Trojans often wrongfully report having detected some unlicensed applications made it possible for on the victim’s tool. The sharp then demands the individual to pay the ransom money.

    Faulty statements regarding prohibited content.

    In countries where software application piracy is less popular, this approach is not as reliable for the cyber fraudulences. Conversely, the Trojan.Win32.Fsysna.dcul popup alert may falsely declare to be stemming from a law enforcement institution and also will report having located youngster porn or other prohibited information on the device.

    Trojan.Win32.Fsysna.dcul popup alert may falsely claim to be acquiring from a law enforcement establishment and will certainly report having situated child pornography or various other unlawful data on the device. The alert will similarly contain a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 84EEE441
md5: f43d890fb3e2293baa1d9f669b79162f
name: F43D890FB3E2293BAA1D9F669B79162F.mlw
sha1: 6e629a23a46981859b2411b8539e8a7283150690
sha256: b1a824e1a7463c97473db5a6bc12ac996d1acb46f4ea54df3736ceea1e2cc1a0
sha512: 40bec11de41e422ee670fc2363abed9045012cdd310cba0561d8e7322477142a79dff7c23b0a2da1242bda1c3a34baac447c6effe4e85511fbc9dd9db99d3f83
ssdeep: 3072:yECuQdS6I2+7JrOOh+4j8ndOAKzS9Uwx6Uii8RfLBBTEa6lDMSB1+E0WK:yECuQdSFJrOf4j8ndONjUvgBpToDvDT
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0409 0x04b0
InternalName: Boligsektor3
FileVersion: 1.00
CompanyName: Halon Krusk
Comments: Ropewalker2
ProductName: Statuering0
ProductVersion: 1.00
FileDescription: Reimmigrant1
OriginalFilename: Boligsektor3.exe

Trojan.Win32.Fsysna.dcul also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Riskware ( 0040eff71 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.3976
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Critroni.A3
ALYac Gen:Heur.PonyStealer.lm0@cGReCdmi
Cylance Unsafe
Zillya Trojan.Fsysna.Win32.11171
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Ransom:Win32/Locky.8a705ce8
K7GW Riskware ( 0040eff71 )
Cybereason malicious.fb3e22
Cyren W32/VBInject.LG.gen!Eldorado
Symantec Ransom.TeslaCrypt
ESET-NOD32 Win32/Filecoder.Locky.B
APEX Malicious
Avast Win32:Trojan-gen
Kaspersky Trojan.Win32.Fsysna.dcul
BitDefender Gen:Heur.PonyStealer.lm0@cGReCdmi
NANO-Antivirus Trojan.Win32.Encoder.ecckio
ViRobot Trojan.Win32.U.Locky.184320
SUPERAntiSpyware Trojan.Agent/Gen-VB
MicroWorld-eScan Gen:Heur.PonyStealer.lm0@cGReCdmi
Tencent Win32.Trojan.Inject.Auto
Ad-Aware Gen:Heur.PonyStealer.lm0@cGReCdmi
Sophos Mal/Generic-R + Troj/Agent-ARMR
BitDefenderTheta Gen:NN.ZevbaF.34628.lm0@aGReCdmi
VIPRE Win32.Malware!Drop
TrendMicro Ransom_LOCKY.BZ
Emsisoft Gen:Heur.PonyStealer.lm0@cGReCdmi (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Fsysna.dah
Webroot W64.Dridex.K
Avira HEUR/AGEN.1125073
eGambit Unsafe.AI_Score_99%
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/Locky.A
Arcabit Trojan.PonyStealer.E94E4B
AegisLab Trojan.Win32.Fsysna.4!c
ZoneAlarm Trojan.Win32.Fsysna.dcul
GData Gen:Heur.PonyStealer.lm0@cGReCdmi
AhnLab-V3 Win-Trojan/VBKrypt.RP.X1764
McAfee Ransomware-FJQ!F43D890FB3E2
MAX malware (ai score=100)
VBA32 Trojan.Fsysna
Malwarebytes MachineLearning/Anomalous.95%
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_LOCKY.BZ
Rising Ransom.Locky!8.1CD4 (CLOUD)
Yandex Trojan.Fsysna!avtF+6DeLDM
Ikarus Trojan.Win32.Filecoder
Fortinet W32/CTBLocker.C!tr.ransom
AVG Win32:Trojan-gen
Qihoo-360 Win32/Ransom.Locky.HgIASOYA

How to remove Trojan.Win32.Fsysna.dcul 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 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 Trojan.Win32.Fsysna.dcul 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.Fsysna.dcul you can always ask me in the comments for getting help.

User Review
0 (0 votes)
Comments Rating 0 (0 reviews)


  1. GridinSoft Anti-Malware Review from HowToFix site:
  2. More information about GridinSoft products:

About the author

Robert Bailey

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

Leave a Reply


This site uses Akismet to reduce spam. Learn how your comment data is processed.