What is Win32/Filecoder.Cerber.W infection?

In this post you will discover regarding the meaning of Win32/Filecoder.Cerber.W and also its negative impact on your computer. Such ransomware are a form of malware that is elaborated by on-line frauds to require paying the ransom money by a victim.

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In the majority of the instances, Win32/Filecoder.Cerber.W virus will certainly advise its victims to start funds transfer for the function of counteracting the modifications that the Trojan infection has introduced to the victim’s device.

Win32/Filecoder.Cerber.W Summary

These modifications 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.
  • A process created a hidden window;
  • Creates an excessive number of UDP connection attempts to external IP addresses;
  • 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;
  • 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
  • EternalBlue behavior. Allows cyber threat actors to remotely execute arbitrary code and gain access to a network by sending specially crafted packets.

    This is has made EternalBlue trick popular with various malware, such as Trickbot, a modular banking trojan, as well as CoinMiner and WannaMine, crypto miners that use the EternalBlue exploit in order to gain access to computing power to mine cryptocurrencies.

  • Attempts to access Bitcoin/ALTCoin wallets;
  • Generates some ICMP traffic;
  • 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 documents found on the target’s hard disk drive — so the sufferer can no more utilize the data;
  • Preventing routine access 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.


One of the most normal networks through which Win32/Filecoder.Cerber.W Ransomware are injected are:

  • By means of phishing emails;
  • As a repercussion of user ending up on a source that hosts a harmful software program;

As quickly as the Trojan is successfully injected, it will either cipher the information on the target’s computer or protect against the device from operating in a correct manner – while additionally putting a ransom money note that mentions the need for the targets to impact the payment for the purpose of decrypting the files or restoring the data system back to the initial problem. In the majority of circumstances, the ransom note will turn up when the client restarts the PC after the system has already been harmed.

Win32/Filecoder.Cerber.W circulation channels.

In different edges of the globe, Win32/Filecoder.Cerber.W grows by jumps and also bounds. Nevertheless, the ransom notes as well as techniques of extorting the ransom money amount might differ depending upon certain local (local) setups. The ransom notes and also techniques of obtaining the ransom money quantity may differ depending on particular regional (regional) setups.

Ransomware injection

As an example:

    Faulty signals about unlicensed software.

    In certain areas, the Trojans usually wrongfully report having spotted some unlicensed applications made it possible for on the sufferer’s gadget. The sharp then demands the individual to pay the ransom.

    Faulty declarations regarding prohibited web content.

    In nations where software program piracy is less popular, this method is not as efficient for the cyber frauds. Additionally, the Win32/Filecoder.Cerber.W popup alert might incorrectly assert to be stemming from a police organization and also will report having situated youngster pornography or various other prohibited data on the gadget.

    Win32/Filecoder.Cerber.W popup alert may falsely assert to be obtaining from a law enforcement establishment as well as will certainly report having situated kid porn or various other unlawful information on the gadget. The alert will likewise include a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: 3EAB5B1C
md5: a670ff5997a9e378e7569716fd4b11f1
name: A670FF5997A9E378E7569716FD4B11F1.mlw
sha1: 4158aea5c167530551d88c26abe4638658e91cb0
sha256: fefbbb1397d0ef0d81afaa01a0b044906351e5c8838d470911635d74c651095d
sha512: 680859a3e5d84d92a3f1ef80d315402a76fba98cf143a05069be04bcbe7d01dbd091128b082593443f5e7ac03c1cc6d9b3546dc21144bf6257aca3ef1713c7e4
ssdeep: 6144:MSqkxHuQvFV4hdLjWaoj2OrOTl/1sf28NxGpA//aEeDoL+SY1pCuRmgxq:MYHBMhljA2OqTJYJNgC/2/Rm
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

FileDescription: Anka
CompanyName: Ovogame
Translation: 0x040c 0x04b0

Win32/Filecoder.Cerber.W also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Mint.Zamg.O
CAT-QuickHeal Ransom.Cerber.YB4
McAfee Ransomware-GCQ!A670FF5997A9
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 0054f2ec1 )
BitDefender Trojan.Mint.Zamg.O
K7GW Trojan ( 00512b441 )
Cybereason malicious.997a9e
BitDefenderTheta Gen:NN.ZexaF.34590.Eq0@amTK9spe
Cyren W32/S-2b19a2f6!Eldorado
Symantec Packed.Generic.459
ESET-NOD32 Win32/Filecoder.Cerber.W
APEX Malicious
Avast Win32:RansomX-gen [Ransom]
ClamAV Win.Ransomware.Razy-7359654-0
Kaspersky HEUR:Trojan.Win32.Generic
NANO-Antivirus Trojan.Win32.Zerber.esalxw
ViRobot Trojan.Win32.Cerber.497664
AegisLab Trojan.Win32.Generic.4!c
Rising Trojan.Kryptik!1.AD41 (CLOUD)
Ad-Aware Trojan.Mint.Zamg.O
Emsisoft Trojan.Mint.Zamg.O (B)
Comodo TrojWare.Win32.Bulta.GR@7k46qi
F-Secure Heuristic.HEUR/AGEN.1121405
DrWeb Trojan.Encoder.4691
Zillya Trojan.Filecoder.Win32.6057
TrendMicro Ransom_HPCERBER.SMALY5B
Sophos Mal/Generic-R + Mal/Cerber-AL
Ikarus Trojan-Ransom.Generic
Jiangmin Trojan.Zerber.dab
Avira HEUR/AGEN.1121405
MAX malware (ai score=100)
Antiy-AVL Trojan[Ransom]/Win32.Zerber
Microsoft Ransom:Win32/Cerber
Arcabit Trojan.Mint.Zamg.O
AhnLab-V3 Win-Trojan/Cerber.Exp
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Win32.Trojan-Ransom.Cerber.AL
Cynet Malicious (score: 100)
Acronis suspicious
ALYac Trojan.Mint.Zamg.O
TACHYON Ransom/W32.Cerber.497664
VBA32 Hoax.Zerber
Malwarebytes Malware.AI.1666185645
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_HPCERBER.SMALY5B
Tencent Malware.Win32.Gencirc.10b23454
Yandex Trojan.Zerber!tqa1ZGOIPTg
SentinelOne Static AI – Malicious PE
MaxSecure Win.MxResIcn.Heur.Gen
Fortinet W32/Zamg.O!tr
AVG Win32:RansomX-gen [Ransom]
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 Win32/Trojan.3c2

How to remove Win32/Filecoder.Cerber.W 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.

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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.

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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/Filecoder.Cerber.W 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?

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

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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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