Win32/Filecoder.Jaff.B

What is Win32/Filecoder.Jaff.B infection?

In this post you will certainly locate regarding the interpretation of Win32/Filecoder.Jaff.B and also its adverse impact on your computer. Such ransomware are a type of malware that is specified by on the internet frauds to require paying the ransom by a target.

In the majority of the cases, Win32/Filecoder.Jaff.B infection will certainly instruct its sufferers to initiate funds transfer for the purpose of counteracting the modifications that the Trojan infection has presented to the sufferer’s device.

Win32/Filecoder.Jaff.B Summary

These adjustments 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.
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • 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
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • Clears Windows events or logs;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers situated on the target’s disk drive — so the target can no more make use of the data;
  • Preventing routine accessibility 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.
Similar behavior
Related domains
maximusstafastoriesticks.info Trojan.Ransom.JaffCrypt.H

Win32/Filecoder.Jaff.B

One of the most regular networks through which Win32/Filecoder.Jaff.B Ransomware Trojans are infused are:

  • By methods of phishing emails;
  • As an effect of customer winding up on a resource that holds a harmful software program;

As quickly as the Trojan is efficiently injected, it will either cipher the data on the sufferer’s computer or avoid the device from functioning in a proper way – while additionally putting a ransom note that points out the requirement for the victims to impact the settlement for the purpose of decrypting the files or restoring the file system back to the preliminary condition. In a lot of circumstances, the ransom money note will certainly come up when the customer restarts the COMPUTER after the system has actually currently been damaged.

Win32/Filecoder.Jaff.B distribution channels.

In numerous corners of the globe, Win32/Filecoder.Jaff.B grows by jumps and bounds. Nonetheless, the ransom notes and also tricks of extorting the ransom amount may vary depending upon specific regional (regional) setups. The ransom money notes and also tricks of obtaining the ransom money quantity might vary depending on particular neighborhood (local) settings.

Ransomware injection

For instance:

    Faulty signals regarding unlicensed software program.

    In certain areas, the Trojans frequently wrongfully report having identified some unlicensed applications allowed on the sufferer’s device. The sharp then requires the user to pay the ransom money.

    Faulty declarations about prohibited material.

    In countries where software application piracy is much less popular, this technique is not as reliable for the cyber fraudulences. Alternatively, the Win32/Filecoder.Jaff.B popup alert might wrongly declare to be stemming from a police organization and will report having situated youngster pornography or other prohibited information on the gadget.

    Win32/Filecoder.Jaff.B popup alert might incorrectly assert to be deriving from a legislation enforcement establishment and also will certainly report having located youngster porn or various other illegal data on the gadget. The alert will similarly contain a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 26D4E919md5: 38c45787461a1c50f4d683f27bab7342name: 38C45787461A1C50F4D683F27BAB7342.mlwsha1: f568d7a21971d20a5d9ed1872b6ce6b3bf4da300sha256: 270f93316e23f975df880ba528e4d66ae5aad15ab7a05fed66ea9bd8b46f73bfsha512: 0d782bda566687674fdd1c52d6d7a96269b501eb680f3395301c328407c98586e669e997fff2e0c8faa7eb83f9add9b3deb3381436d858d7e7302da614577fbassdeep: 3072:jqsDV/E8yQdG8xvwgUcXaLkuOY/CxIt4HGo5BVdyVavxZrmS8gSm:jNtyGyvOAcHlVdyVaGjotype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright xa9GlobalLogic. All rights reserved.InternalName: HomeDigitsFileVersion: 6.9.7.7CompanyName: GlobalLogicLegalTrademarks: Copyright xa9GlobalLogic. All rights reserved.Comments: Globally Transfer Compared Dime Walked FighterProductName: HomeDigitsProductVersion: 6.9.7.7FileDescription: Globally Transfer Compared Dime Walked FighterOriginalFilename: HomeDigitsTranslation: 0x0409 0x04b0

Win32/Filecoder.Jaff.B also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0050de1d1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.11649
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.MauvaiseRI.S5248900
ALYac Trojan.Ransom.JaffCrypt.H
Cylance Unsafe
Zillya Trojan.Jaff.Win32.1
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
K7GW Trojan ( 0050de1d1 )
Cybereason malicious.7461a1
Cyren W32/RansomJaff.D.gen!Eldorado
Symantec Trojan Horse
ESET-NOD32 Win32/Filecoder.Jaff.B
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Ransom.JaffCrypt.H
NANO-Antivirus Trojan.Win32.Jaff.epfdpq
ViRobot Trojan.Win32.Ransom.241664.C
MicroWorld-eScan Trojan.Ransom.JaffCrypt.H
Ad-Aware Trojan.Ransom.JaffCrypt.H
Sophos ML/PE-A
BitDefenderTheta Gen:NN.ZexaF.34738.oq0@aK0zALoi
TrendMicro Mal_MiliCry-1h
McAfee-GW-Edition Trojan-FMTJ!38C45787461A
FireEye Generic.mg.38c45787461a1c50
Emsisoft Trojan-Ransom.Jaff (A)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Jaff.c
Avira HEUR/AGEN.1138021
eGambit Unsafe.AI_Score_100%
Antiy-AVL Trojan/Generic.ASMalwS.204E0D5
Microsoft Trojan:Win32/Glupteba!ml
Arcabit Trojan.Ransom.JaffCrypt.H
GData Trojan.Ransom.JaffCrypt.H
TACHYON Ransom/W32.Jaff.241664
AhnLab-V3 Win-Trojan/Sagecrypt.Gen
McAfee Trojan-FMTJ!38C45787461A
MAX malware (ai score=82)
VBA32 BScope.Trojan.Yakes
Malwarebytes Ransom.FileCryptor
TrendMicro-HouseCall Mal_MiliCry-1h
Rising [email protected] (RDML:7eg2FHJiVQxmnaFuCrsUBg)
Yandex Trojan.GenAsa!j5xvPxHjuUw
Fortinet W32/Generic.AC.3F1075!tr
AVG Win32:Malware-gen

How to remove Win32/Filecoder.Jaff.B 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

Run the setup file.

Run Setup.exe
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 Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

If the guide doesn’t help you to remove Win32/Filecoder.Jaff.B you can always ask me in the comments for getting help.

References

    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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