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

What is BAT/RA-based.FY infection?

In this article you will discover concerning the definition of BAT/RA-based.FY and also its unfavorable influence on your computer system. Such ransomware are a form of malware that is specified by online frauds to demand paying the ransom money by a target.

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In the majority of the instances, BAT/RA-based.FY infection will certainly advise its targets to launch funds transfer for the purpose of counteracting the modifications that the Trojan infection has actually presented to the target’s device.

BAT/RA-based.FY Summary

These adjustments can be as adheres to:

  • Detected script timer window indicative of sleep style evasion;
  • A process attempted to delay the analysis task.;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • 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;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • A scripting utility was executed;
  • Uses Windows utilities for basic functionality;
  • Network activity contains more than one unique useragent.;
  • 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 identify installed AV products by installation directory;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Modifies system policies to prevent the launching of specific applications or executables;
  • Attempts to disable UAC.

    User Account Control or just UAC is a part of the Windows security system which prevents apps from making unwanted changes on PC.

    UAC includes several technologies 1:

    • File and egistry Virtualization;
    • Same-desktop Elevation;
    • Filtered Token;
    • User Interface Privilege Isolation;
    • Protected Mode Internet Explorer;
    • Installer Detection;
  • Attempts to disable Windows Defender;
  • Attempts to modify UAC prompt behavior;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the papers found on the sufferer’s disk drive — so the sufferer can no more make use of the data;
  • Preventing regular access 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 Trojan[Ransom]/Win32.Blocker Trojan[Ransom]/Win32.Blocker Trojan[Ransom]/Win32.Blocker Trojan[Ransom]/Win32.Blocker


The most typical channels whereby BAT/RA-based.FY Ransomware are injected are:

  • By ways of phishing emails;
  • As an effect of individual ending up on a source that holds a harmful software program;

As quickly as the Trojan is efficiently infused, it will certainly either cipher the information on the target’s PC or avoid the tool from working in a proper fashion – while likewise positioning a ransom money note that mentions the need for the sufferers to effect the payment for the function of decrypting the papers or bring back the documents system back to the first condition. In the majority of circumstances, the ransom note will come up when the client reboots the COMPUTER after the system has actually currently been harmed.

BAT/RA-based.FY circulation channels.

In numerous corners of the world, BAT/RA-based.FY expands by jumps as well as bounds. Nevertheless, the ransom money notes and also techniques of obtaining the ransom quantity might differ relying on particular regional (local) setups. The ransom money notes and methods of extorting the ransom money quantity might vary depending on particular neighborhood (regional) setups.

Ransomware injection

For example:

    Faulty alerts concerning unlicensed software application.

    In particular areas, the Trojans frequently wrongfully report having actually detected some unlicensed applications allowed on the sufferer’s device. The alert then requires the customer to pay the ransom.

    Faulty declarations about illegal web content.

    In nations where software application piracy is much less preferred, this approach is not as reliable for the cyber fraudulences. Conversely, the BAT/RA-based.FY popup alert might falsely claim to be originating from a law enforcement organization and will certainly report having situated child porn or various other prohibited information on the device.

    BAT/RA-based.FY popup alert may incorrectly claim to be obtaining from a regulation enforcement institution and also will certainly report having located youngster pornography or other illegal information on the device. The alert will likewise consist of a need for the individual to pay the ransom.

Technical details

File Info:

crc32: 63B37613
md5: d77446899ec960168998d49c55ffc9b6
name: test2.rar
sha1: 4420eb6533b96c6c5da888f2c29436a57891d26f
sha256: d6603a386e267eacd99612af431cc7cfef8cbf9b51ce4d3b8680dcdc7924ccc7
sha512: 22d574c1e1cb21634779b7822da031d8ae066ef99db88bc66a3a67b8b3fc0356b8d65530c41aeb400ae8106b2149b13e7ebbe3d859da8f2dc1d008537227bd34
ssdeep: 196608:4j1WZWkIH9FoALaYvcSAykwiwGPKFFR78LFzLLQG:4cZWkML0hy/FnIL
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0809 0x04b0

BAT/RA-based.FY also known as:

GridinSoft Trojan.Ransom.Gen
DrWeb VBS.Dropper.225
MicroWorld-eScan Trojan.GenericKD.42684127
CAT-QuickHeal Trojan.VBS
Qihoo-360 Generic/Trojan.8c1
McAfee Artemis!D77446899EC9
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
AegisLab Trojan.VBS.Agent.4!c
Sangfor Malware
K7AntiVirus Trojan ( 0053caee1 )
BitDefender Trojan.GenericKD.42684127
K7GW Trojan ( 0053caee1 )
Cybereason malicious.99ec96
TrendMicro TROJ_GEN.R002C0DAC20
BitDefenderTheta AI:Packer.9E33D48C17
APEX Malicious
ClamAV Win.Trojan.Agent-7546250-0
GData Trojan.GenericKD.42684127
Kaspersky Trojan.VBS.Agent.ajg
Alibaba TrojanPSW:Win32/Autoit.67e425cb
NANO-Antivirus Trojan.Win32.RAbased.fpopic
Rising Malware.Heuristic!ET#100% (RDMK:cmRtazrhlUB1LIL2k4VC4tMeE4UB)
Ad-Aware Trojan.GenericKD.42684127
Emsisoft Trojan.GenericKD.42684127 (B)
Comodo Malware@#2cty3kdate5jh
F-Secure Heuristic.HEUR/AGEN.1043766
Invincea heuristic
McAfee-GW-Edition BehavesLike.Win32.Downloader.rc
Sophos Mal/Generic-S
Cyren W32/Trojan.WSIV-2335
Avira BAT/Rabased.xgaji
Antiy-AVL Trojan[Ransom]/Win32.Blocker
Endgame malicious (high confidence)
Arcabit Trojan.Generic.D28B4EDF
ZoneAlarm Trojan.VBS.Agent.ajg
Microsoft Trojan:Win32/Occamy.C
ALYac Trojan.GenericKD.42684127
MAX malware (ai score=86)
VBA32 Trojan.VBS.Agent
Malwarebytes Spyware.PasswordStealer
Panda Trj/CI.A
TrendMicro-HouseCall TROJ_GEN.R002C0DAC20
Tencent Vbs.Trojan.Agent.Wrqa
Ikarus Trojan-Spy.Azorult
eGambit Unsafe.AI_Score_91%
Fortinet W32/PSW.DELF.OSF!tr
AVG Win32:Trojan-gen
Avast Win32:Trojan-gen
CrowdStrike win/malicious_confidence_80% (W)
MaxSecure Trojan.Malware.300983.susgen

How to remove BAT/RA-based.FY 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 GridinSoft2

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.3.

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 BAT/RA-based.FY 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 BAT/RA-based.FY you can always ask me in the comments for getting help.

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  1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server
  2. GridinSoft Anti-Malware Review from HowToFix site:
  3. More information about GridinSoft products:

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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