Ransom:Win32/Fermyrypt.A

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

What is Ransom:Win32/Fermyrypt.A infection?

In this post you will locate regarding the meaning of Ransom:Win32/Fermyrypt.A as well as its adverse impact on your computer. Such ransomware are a type of malware that is clarified by online fraudulences to demand paying the ransom money by a victim.

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Most of the instances, Ransom:Win32/Fermyrypt.A infection will advise its victims to start funds move for the purpose of neutralizing the changes that the Trojan infection has actually introduced to the sufferer’s tool.

Ransom:Win32/Fermyrypt.A Summary

These alterations can be as adheres to:

  • 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.
  • 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.
  • Uses Windows utilities for basic functionality;
  • Deletes its original binary from disk;
  • Attempts to delete volume shadow copies;
  • Attempts to stop active services;
  • 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;
  • 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.
  • Likely virus infection of existing system binary;
  • Creates a copy of itself;
  • Attempts to disable Windows Defender;
  • Attempts to interact with an Alternate Data Stream (ADS);
  • Creates a slightly modified copy of itself;
  • Appends a known Locked ransomware file extension to files that have been encrypted;
  • 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 documents found on the victim’s disk drive — so the sufferer can no more use the information;
  • Preventing regular accessibility to the sufferer’s workstation;

Ransom:Win32/Fermyrypt.A

One of the most normal networks through which Ransom:Win32/Fermyrypt.A Ransomware are injected are:

  • By means of phishing e-mails;
  • As an effect of user ending up on a source that organizes a malicious software application;

As quickly as the Trojan is effectively injected, it will certainly either cipher the information on the sufferer’s PC or stop the tool from operating in a correct manner – while additionally placing a ransom note that mentions the demand for the sufferers to impact the repayment for the function of decrypting the papers or recovering the file system back to the first problem. In a lot of instances, the ransom money note will certainly turn up when the client reboots the PC after the system has currently been harmed.

Ransom:Win32/Fermyrypt.A distribution networks.

In different edges of the world, Ransom:Win32/Fermyrypt.A grows by jumps as well as bounds. Nonetheless, the ransom notes and also methods of extorting the ransom quantity might differ depending upon certain local (local) settings. The ransom money notes as well as tricks of extorting the ransom money quantity might differ depending on specific local (regional) setups.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software program.

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

    Faulty declarations about prohibited content.

    In nations where software piracy is less preferred, this approach is not as reliable for the cyber fraudulences. Alternatively, the Ransom:Win32/Fermyrypt.A popup alert might wrongly claim to be stemming from a police institution and also will certainly report having located kid porn or other illegal information on the device.

    Ransom:Win32/Fermyrypt.A popup alert may wrongly assert to be obtaining from a legislation enforcement establishment and will certainly report having located youngster porn or various other unlawful information on the tool. The alert will likewise have a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: C78C987D
md5: c785093151fa52d84c53dbd0683dcd77
name: C785093151FA52D84C53DBD0683DCD77.mlw
sha1: 8ae1c1869c42daa035032341804aefc3e7f3caf1
sha256: c7f8c6e833243519cdc8dd327942d62a627fe9c0793d899448938a3f10149481
sha512: e20ce0cd4662b1280b4a08090ae344408d80f93c4937ca18eb2d2a0352059bece09d00f4c675a9f71a4990342a4a515022d501e93a0b52f7885975251a87644e
ssdeep: 1536:9KPR3b59Ffvcw61YrlwKARUv1+WIp+/jNwCC71R1J5N6lwS:9EJbPVvcw61YrWVevAWi+/jiBR1JLdS
type: PE32 executable (console) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Ransom:Win32/Fermyrypt.A also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 00510a5b1 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.15345
CynetMalicious (score: 100)
ALYacTrojan.Ransom.FriedEx
CylanceUnsafe
ZillyaTrojan.Refinka.Win32.1207
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaTrojan:Win32/FriedEx.839eef55
K7GWTrojan ( 00510a5b1 )
Cybereasonmalicious.151fa5
CyrenW32/Trojan.DGPC-7183
SymantecPacked.Generic.517
ESET-NOD32Win32/Filecoder.FriedEx.A
APEXMalicious
AvastWin32:Malware-gen
ClamAVWin.Trojan.Emotet-6432361-0
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderDeepScan:Generic.Ransom.Bitpaymer.06BE0086
NANO-AntivirusTrojan.Win32.Encoder.frqjni
ViRobotTrojan.Win32.Dridex.98304
MicroWorld-eScanDeepScan:Generic.Ransom.Bitpaymer.06BE0086
TencentWin32.Trojan.Raas.Auto
Ad-AwareDeepScan:Generic.Ransom.Bitpaymer.06BE0086
SophosML/PE-A + Mal/EncPk-AOI
BitDefenderThetaGen:NN.ZexaF.34628.gqW@a80lEke
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom.Win32.BITPAYMER.TGACAJ
McAfee-GW-EditionBehavesLike.Win32.Agent.nc
FireEyeGeneric.mg.c785093151fa52d8
EmsisoftDeepScan:Generic.Ransom.Bitpaymer.06BE0086 (B)
JiangminTrojan.Refinka.abh
WebrootW32.Gen.BT
AviraHEUR/AGEN.1115162
eGambitUnsafe.AI_Score_78%
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftRansom:Win32/Fermyrypt.A
AegisLabTrojan.Win32.Generic.4!c
GDataDeepScan:Generic.Ransom.Bitpaymer.06BE0086
AhnLab-V3Trojan/Win32.Refinka.C2250124
Acronissuspicious
McAfeeEmotet-FEA!C785093151FA
VBA32Trojan.MulDrop
PandaTrj/GdSda.A
TrendMicro-HouseCallRansom.Win32.BITPAYMER.TGACAJ
RisingMalware.Undefined!8.C (TFE:dGZlOgOk9j70XdrlTg)
YandexTrojan.Refinka!NfOrhusOzXw
SentinelOneStatic AI – Malicious PE
MaxSecureTrojan.Malware.7164915.susgen
FortinetW32/Kryptik.GAWO!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.BitPaymer.HxQBEpsA

How to remove Ransom:Win32/Fermyrypt.A 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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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 Ransom:Win32/Fermyrypt.A 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Ransom:Win32/Fermyrypt.A 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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