Trojan.Dropper.FW

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

What is Trojan.Dropper.FW infection?

In this article you will find regarding the meaning of Trojan.Dropper.FW as well as its negative influence on your computer. Such ransomware are a form of malware that is clarified by online scams to demand paying the ransom money by a victim.

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In the majority of the situations, Trojan.Dropper.FW ransomware will advise its victims to start funds move for the objective of counteracting the amendments that the Trojan infection has actually presented to the victim’s tool.

Trojan.Dropper.FW Summary

These alterations can be as complies with:

  • 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 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.
  • Uses Windows utilities for basic functionality;
  • Deletes its original binary from disk;
  • 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
  • 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.
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records situated on the sufferer’s hard disk drive — so the target can no more use the data;
  • Preventing routine 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
dcns.chickenkiller.com Trojan-Ransom.Win32.Blocker.gptv

Trojan.Dropper.FW

One of the most typical networks where Trojan.Dropper.FW Ransomware 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 an effect of user ending up on a resource that holds a harmful software;

As soon as the Trojan is effectively infused, it will certainly either cipher the data on the victim’s PC or stop the device from working in a correct way – while likewise putting a ransom money note that mentions the requirement for the targets to impact the payment for the function of decrypting the papers or bring back the file system back to the initial condition. In a lot of circumstances, the ransom money note will come up when the customer reboots the COMPUTER after the system has currently been damaged.

Trojan.Dropper.FW circulation channels.

In different corners of the globe, Trojan.Dropper.FW grows by jumps and also bounds. Nonetheless, the ransom money notes as well as techniques of obtaining the ransom amount might differ depending on certain local (regional) settings. The ransom notes as well as techniques of obtaining the ransom money quantity might vary depending on certain local (local) settings.

Ransomware injection

As an example:

    Faulty alerts concerning unlicensed software.

    In specific areas, the Trojans often wrongfully report having detected some unlicensed applications enabled on the sufferer’s tool. The alert then requires the user to pay the ransom money.

    Faulty declarations about illegal material.

    In countries where software application piracy is less preferred, this method is not as efficient for the cyber scams. Alternatively, the Trojan.Dropper.FW popup alert might wrongly claim to be deriving from a law enforcement establishment and will report having located child porn or other illegal information on the gadget.

    Trojan.Dropper.FW popup alert might incorrectly declare to be acquiring from a law enforcement establishment and also will certainly report having situated child pornography or various other illegal information on the tool. The alert will in a similar way contain a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: ED0B8446
md5: 3cc380f2e0f333e064f37626631962e6
name: 3CC380F2E0F333E064F37626631962E6.mlw
sha1: 3caa693e55acedc4455b72a7045fffa4a5026526
sha256: b6be9c10b9a20f969993027aee420076281d7a0c9935b9e34a714bcc9fc9e32c
sha512: 95d43c10fc33f7eca50194dd3f1781fef5082be8799aa451500cd5baed0d276fa38aa5ebc7fac05a47800efa5dafb77125aa26bb96e529797f44f4db9b57d551
ssdeep: 768:s0knH5QLr96gLZmjzYnP7RhRvxKq2Y1rqI:szZA4iKEFXvxKqHs
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan.Dropper.FW also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Trojan.ExplorerHijack.cqW@auIaKbh
FireEye Generic.mg.3cc380f2e0f333e0
McAfee Artemis!3CC380F2E0F3
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
AegisLab Trojan.Win32.Blocker.j!c
Sangfor Trojan.Win32.Save.a
K7AntiVirus Riskware ( 0040eff71 )
BitDefender Gen:Trojan.ExplorerHijack.cqW@auIaKbh
K7GW Riskware ( 0040eff71 )
CrowdStrike win/malicious_confidence_100% (W)
Symantec Backdoor.Pled
TotalDefense Win32/FakeDoc_i
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Blocker.gptv
Alibaba Ransom:Win32/Blocker.9480de82
NANO-Antivirus Virus.Win32.Gen-Crypt.ccnc
Tencent Win32.Trojan.Fakedoc.Auto
Ad-Aware Gen:Trojan.ExplorerHijack.cqW@auIaKbh
Sophos Mal/Generic-R + Troj/Agent-ALXF
Comodo TrojWare.Win32.Zusy.27@4p0gja
F-Secure Trojan.TR/Crypt.CFI.Gen
DrWeb Trojan.Fakealert.52461
Zillya Trojan.Blocker.Win32.46380
TrendMicro BKDR_PLEAD.ZTCC-A
McAfee-GW-Edition Artemis!Trojan
Emsisoft Gen:Trojan.ExplorerHijack.cqW@auIaKbh (B)
Jiangmin Trojan/Blocker.lrl
Avira TR/Crypt.CFI.Gen
Antiy-AVL Trojan[Ransom]/Win32.Blocker
Kingsoft Win32.Heur.KVM007.a.(kcloud)
Microsoft Trojan:Win32/Dynamer!ac
Arcabit Trojan.ExplorerHijack.EAC067
ZoneAlarm Trojan-Ransom.Win32.Blocker.gptv
GData Gen:Trojan.ExplorerHijack.cqW@auIaKbh
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Travnet.C192167
BitDefenderTheta AI:Packer.7E419D771E
ALYac Backdoor.Agent.Plead
TACHYON Trojan/W32.Blocker.34304.O
VBA32 Malware-Cryptor.Inject.gen
Malwarebytes Trojan.Dropper.FW
Panda Trj/GdSda.A
ESET-NOD32 a variant of Win32/Plead.Q.gen
TrendMicro-HouseCall BKDR_PLEAD.ZTCC-A
Rising Trojan.Win32.Generic.182C0CF2 (C64:YzY0OlQ/PvZHsdmo)
Yandex Trojan.GenAsa!fhfnLxQfcOE
MAX malware (ai score=100)
eGambit Unsafe.AI_Score_92%
Fortinet W32/Agent.ALXF!tr
Webroot W32.Trojan.Gen
AVG Win32:Malware-gen
Cybereason malicious.2e0f33
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Blocker.HwcBxgcA

How to remove Trojan.Dropper.FW 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 Trojan.Dropper.FW 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 Trojan.Dropper.FW 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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