What is Win32/TrojanDownloader.Agent.FBJ infection?

In this short article you will certainly discover regarding the definition of Win32/TrojanDownloader.Agent.FBJ and also its negative impact on your computer system. Such ransomware are a type of malware that is specified by on the internet scams to demand paying the ransom money by a victim.

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Most of the instances, Win32/TrojanDownloader.Agent.FBJ virus will instruct its victims to start funds transfer for the objective of neutralizing the modifications that the Trojan infection has actually presented to the sufferer’s device.

Win32/TrojanDownloader.Agent.FBJ Summary

These modifications 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.
  • 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.
  • Unconventionial language used in binary resources: Greek;
  • 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 records situated on the target’s disk drive — so the sufferer can no more use the data;
  • Preventing routine accessibility to the sufferer’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 Ransom.Win32.Wacatac.oa Ransom.Win32.Wacatac.oa


The most common channels whereby Win32/TrojanDownloader.Agent.FBJ are infused are:

  • By means of phishing emails;
  • As a repercussion of customer winding up on a resource that organizes a malicious software program;

As soon as the Trojan is efficiently injected, it will certainly either cipher the data on the target’s computer or protect against the gadget from operating in a proper manner – while also putting a ransom money note that discusses the need for the targets to impact the repayment for the objective of decrypting the documents or restoring the data system back to the first problem. In most instances, the ransom note will certainly show up when the client reboots the COMPUTER after the system has actually currently been damaged.

Win32/TrojanDownloader.Agent.FBJ circulation channels.

In different edges of the world, Win32/TrojanDownloader.Agent.FBJ grows by leaps as well as bounds. Nonetheless, the ransom money notes and also tricks of obtaining the ransom quantity may vary depending on specific neighborhood (regional) settings. The ransom notes as well as techniques of extorting the ransom amount might vary depending on particular regional (regional) settings.

Ransomware injection

As an example:

    Faulty informs about unlicensed software.

    In certain areas, the Trojans commonly wrongfully report having actually detected some unlicensed applications allowed on the target’s gadget. The alert after that demands the customer to pay the ransom.

    Faulty statements about prohibited content.

    In nations where software program piracy is much less popular, this method is not as efficient for the cyber fraudulences. Additionally, the Win32/TrojanDownloader.Agent.FBJ popup alert may falsely claim to be deriving from a law enforcement institution as well as will report having located kid pornography or various other prohibited data on the tool.

    Win32/TrojanDownloader.Agent.FBJ popup alert might wrongly declare to be acquiring from a regulation enforcement organization and also will certainly report having situated youngster porn or various other unlawful data on the device. The alert will similarly have a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 584DC731
md5: aed402d9a5675f5796265e5170ada7cb
name: AED402D9A5675F5796265E5170ADA7CB.mlw
sha1: d2e2087f83c1ef3d10cbe60acb721745d19306b3
sha256: 44350179d4fdd08fd02c02b733f80c82d54f5af31c8a2432de9cfb6b11ab4aa0
sha512: 273c3a9438bf415398cd5142a9281b4c5508f897d8d9f52e9e5da131eb83301fd4b043fcde8c2111436ef74fd53c7dbe7fc3991bd40710b7059c406bbe7cb8c8
ssdeep: 768:DYldnp1qLYHCVa/XGBCsdLD+isFihijpdpQU9z5cy1M:KdnGDauosdLD+isUEpYByq
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0408 0x04b0
InternalName: fdselskontrol
FileVersion: 2.00
CompanyName: Gallup
ProductName: Gallup
ProductVersion: 2.00
OriginalFilename: fdselskontrol.exe

Win32/TrojanDownloader.Agent.FBJ also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.44569728
FireEye Trojan.GenericKD.44569728
McAfee Artemis!AED402D9A567
Cylance Unsafe
Sangfor Malware
K7AntiVirus Riskware ( 0040eff71 )
BitDefender Trojan.GenericKD.44569728
K7GW Riskware ( 0040eff71 )
Cyren W32/Trojan.YFZA-7497
Symantec Trojan Horse
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan.Win32.Vebzenpak.abzt
Alibaba TrojanDownloader:Win32/Vebzenpak.73ee64a1
ViRobot Trojan.Win32.Z.Wacatac.86016.BN
AegisLab Trojan.Win32.Vebzenpak.4!c
Ad-Aware Trojan.GenericKD.44569728
Emsisoft Trojan.GenericKD.44569728 (B)
Comodo Malware@#2sssjdb8r8mxx
F-Secure Trojan.TR/AD.VBCryptor.sphea
TrendMicro TrojanSpy.Win32.FORMBOOK.BY
McAfee-GW-Edition RDN/Generic.grp
Sophos Mal/Generic-S + Troj/Zbot-PEX
Ikarus Trojan.VB.Crypt
GData Trojan.GenericKD.44569728
Webroot W32.Trojan.Gen
Avira TR/AD.VBCryptor.sphea
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Gridinsoft Ransom.Win32.Wacatac.oa
Arcabit Trojan.Generic.D2A81480
ZoneAlarm Trojan.Win32.Vebzenpak.abzt
Microsoft Trojan:Win32/Ymacco.AA44
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Inject.R96139
BitDefenderTheta Gen:NN.ZevbaF.34634.fm0@aygjOlmG
ALYac Trojan.Agent.GuLoader
MAX malware (ai score=87)
Malwarebytes Trojan.MalPack.VB
Panda Trj/GdSda.A
Zoner Trojan.Win32.98690
ESET-NOD32 Win32/TrojanDownloader.Agent.FBJ
TrendMicro-HouseCall TrojanSpy.Win32.FORMBOOK.BY
Fortinet W32/Generik.DCVYTDR!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Trojan.33f

How to remove Win32/TrojanDownloader.Agent.FBJ 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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The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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 Win32/TrojanDownloader.Agent.FBJ 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 Win32/TrojanDownloader.Agent.FBJ 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

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

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