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The Daily Insight

Trojan:Win32/Predator.GJ!rfn

Author

Sarah Oconnell

Updated on March 24, 2026

What is Trojan:Win32/Predator.GJ!rfn infection?

In this article you will certainly discover concerning the meaning of Trojan:Win32/Predator.GJ!rfn and also its negative impact on your computer system. Such ransomware are a kind of malware that is specified by online fraudulences to demand paying the ransom by a target.

Most of the cases, Trojan:Win32/Predator.GJ!rfn ransomware will certainly advise its targets to start funds move for the purpose of neutralizing the modifications that the Trojan infection has presented to the target’s tool.

Trojan:Win32/Predator.GJ!rfn Summary

These modifications can be as follows:

  • 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.

  • A process created a hidden window;
  • 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 documents situated on the victim’s hard disk — so the sufferer can no more use the data;
  • Preventing normal accessibility to the victim’s workstation;
z.whorecord.xyzTrojan-Ransom.Gryphon
a.tomx.xyzTrojan-Ransom.Gryphon

Trojan:Win32/Predator.GJ!rfn

The most regular channels whereby Trojan:Win32/Predator.GJ!rfn Trojans are infused are:

  • By ways of phishing e-mails;
  • As a repercussion of customer ending up on a source that holds a malicious software program;

As quickly as the Trojan is efficiently injected, it will either cipher the information on the sufferer’s PC or prevent the gadget from working in a correct way – while likewise placing a ransom note that discusses the need for the targets to impact the settlement for the function of decrypting the files or recovering the data system back to the first condition. In most instances, the ransom note will show up when the client reboots the PC after the system has actually already been harmed.

Trojan:Win32/Predator.GJ!rfn distribution networks.

In different edges of the world, Trojan:Win32/Predator.GJ!rfn expands by jumps and also bounds. Nonetheless, the ransom money notes and also tricks of obtaining the ransom amount might differ depending upon particular regional (local) settings. The ransom notes as well as techniques of extorting the ransom amount may differ depending on certain neighborhood (local) settings.

Ransomware injection

For instance:

    Faulty alerts concerning unlicensed software program.

    In certain locations, the Trojans usually wrongfully report having actually spotted some unlicensed applications made it possible for on the target’s device. The alert then demands the individual to pay the ransom.

    Faulty declarations about illegal content.

    In nations where software piracy is much less preferred, this method is not as effective for the cyber fraudulences. Additionally, the Trojan:Win32/Predator.GJ!rfn popup alert might falsely assert to be originating from a law enforcement organization and will report having situated youngster porn or other unlawful data on the tool.

    Trojan:Win32/Predator.GJ!rfn popup alert may wrongly assert to be acquiring from a legislation enforcement organization as well as will report having situated kid porn or various other prohibited information on the tool. The alert will likewise consist of a demand for the user to pay the ransom.

Technical details

File Info:

crc32: C96DE9D6md5: 3a94c5b0350d50bf1485156e75a82dedname: 3A94C5B0350D50BF1485156E75A82DED.mlwsha1: 782da73b0165597dace21d0fcf3bd5cf54716d2esha256: 6eb872c05e3839b491fc9515065fcb0eeb209b3981a1ee3e3140495f907db37csha512: 4944810f8bbfdbeda95cbede4389ebcf020dd2030aaf0bbfe4e393d9cc52511077fa00963039104b60c52ac3f1027a3e20a4b80dd44e6cbe13bc4e1028fad7fassdeep: 1536:X04f1SMHjZ0k/tB1g//I0DuoxbxAHscqbCUvhN4+2YXgr9UxkrzyXGJpdcLk+o:9f1BDZ0kVB67Duw9AMcqbTNpM9Uxc2avtype: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive

Version Info:

InternalName: Wextract FileDescription: Win32 Cabinet Self-Extractor FileVersion: 9.00.8112.16421 (WIN7_IE9_RTM.110308-0330)CompanyName: Microsoft CorporationTranslation: 0x0409 0x04b0

Trojan:Win32/Predator.GJ!rfn also known as:

GridinSoftTrojan.Ransom.Gen
DrWebTrojan.MulDrop15.61988
MicroWorld-eScanTrojan.GenericKD.35664969
FireEyeGeneric.mg.3a94c5b0350d50bf
CAT-QuickHealTrojan.Generic
McAfeeArtemis!3A94C5B0350D
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
SangforMalware
K7AntiVirusTrojan ( 005747ab1 )
BitDefenderTrojan.GenericKD.35664969
K7GWTrojan ( 005747ab1 )
Cybereasonmalicious.b01655
CyrenW32/Injector.ADO.gen!Eldorado
SymantecML.Attribute.HighConfidence
APEXMalicious
AvastWin32:Trojan-gen
KasperskyHEUR:Trojan.Win32.Generic
AlibabaTrojan:Win32/Predator.8a0afedf
ViRobotTrojan.Win32.C.Agent.92189
AegisLabTrojan.Win32.Generic.4!c
Ad-AwareTrojan.GenericKD.35664969
SophosMal/Generic-S
ComodoMalware@#1y0hvjaxhjf90
F-Secure
TrendMicroTrojanSpy.Win32.PREDATOR.THLAEBO
McAfee-GW-EditionBehavesLike.Win32.AdwareAdload.nc
EmsisoftTrojan.GenericKD.35664969 (B)
IkarusTrojan-Ransom.Gryphon
WebrootW32.Trojan.Gen
AviraTR/Injector.plzci
Antiy-AVLTrojan/MSIL.Vasal
MicrosoftTrojan:Win32/Predator.GJ!rfn
GridinsoftRansom.Win32.Filecoder.dd!s1
ArcabitTrojan.Generic.D2203449
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataTrojan.GenericKD.35664969
CynetMalicious (score: 90)
AhnLab-V3Malware/Win32.Generic.C4261848
ALYacTrojan.GenericKD.35664969
VBA32Trojan.MulDrop
PandaTrj/CI.A
ESET-NOD32NSIS/Injector.AJK
TrendMicro-HouseCallTrojanSpy.Win32.PREDATOR.THLAEBO
Rising (CLASSIC)
MAXmalware (ai score=98)
AVGWin32:Trojan-gen
CrowdStrikewin/malicious_confidence_70% (D)
Qihoo-360Generic/HEUR/QVM42.3.D6E7.Malware.Gen

How to remove Trojan:Win32/Predator.GJ!rfn virus?

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:

Download GridinSoft Anti-Malware

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/Predator.GJ!rfn 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/Predator.GJ!rfn you can always ask me in the comments for getting help.

References

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