Win32/Filecoder.Cerber.K

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

What is Win32/Filecoder.Cerber.K infection?

In this short article you will certainly find regarding the meaning of Win32/Filecoder.Cerber.K and its negative impact on your computer system. Such ransomware are a kind of malware that is elaborated by on the internet fraudulences to require paying the ransom by a victim.

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Most of the cases, Win32/Filecoder.Cerber.K infection will certainly instruct its targets to launch funds transfer for the function of counteracting the amendments that the Trojan infection has actually introduced to the target’s device.

Win32/Filecoder.Cerber.K Summary

These alterations can be as follows:

  • 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;
  • 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;
  • Exhibits behavior characteristic of Cerber ransomware;
  • Attempts to execute a binary from a dead or sinkholed URL;
  • Writes a potential ransom message to disk;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Attempts to access Bitcoin/ALTCoin wallets;
  • 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 victim’s hard drive — so the sufferer can no longer use 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.

Win32/Filecoder.Cerber.K

The most normal channels through which Win32/Filecoder.Cerber.K are injected are:

  • By means of phishing emails;
  • As an effect of user ending up on a resource that organizes a harmful software program;

As soon as the Trojan is successfully infused, it will either cipher the data on the target’s computer or avoid the gadget from functioning in a proper fashion – while likewise putting a ransom money note that states the demand for the sufferers to impact the payment for the function of decrypting the papers or bring back the file system back to the first condition. In the majority of instances, the ransom money note will certainly show up when the customer reboots the PC after the system has actually currently been harmed.

Win32/Filecoder.Cerber.K circulation networks.

In different edges of the globe, Win32/Filecoder.Cerber.K expands by leaps as well as bounds. Nonetheless, the ransom notes and methods of extorting the ransom money quantity may differ depending on specific regional (local) settings. The ransom notes as well as methods of extorting the ransom amount might vary depending on particular local (local) settings.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software.

    In particular locations, the Trojans typically wrongfully report having actually identified some unlicensed applications allowed on the target’s device. The alert then demands the customer to pay the ransom money.

    Faulty declarations about unlawful web content.

    In nations where software application piracy is less preferred, this technique is not as efficient for the cyber fraudulences. Additionally, the Win32/Filecoder.Cerber.K popup alert might falsely assert to be deriving from a law enforcement organization as well as will report having located kid porn or other prohibited information on the gadget.

    Win32/Filecoder.Cerber.K popup alert may wrongly declare to be deriving from a law enforcement establishment and also will report having situated youngster pornography or other unlawful data on the device. The alert will likewise include a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: FA479505
md5: b59e8ec7f8e80d3def8276d60b764c7f
name: B59E8EC7F8E80D3DEF8276D60B764C7F.mlw
sha1: 75cbfde4f21358af70e5a65aff871571b44cd12c
sha256: 8bb76b497db779e063d8bd848b5813a7ec580e8e3c391cf112832d8d12aba301
sha512: 8416bebdbc6b433d591f2039e8307f52a1258e339cc2bda9d80f73492ab58702bfd0bc947ae6c46a396e5251c4260eb559ad14014fd4d78036e7f843ae58be99
ssdeep: 3072:HjPI/I/IoI/I/ICIWCByEnh3zOUoaGBkUNVn65N6iERhpWYYzw6yd9yPPp1Gi8bK:F0Dh3zt9FUNVn65E0w6yMSivdyNi
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Filecoder.Cerber.K also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 005190011 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.10731
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Exxroute.A4
ALYac Trojan.Ransom.Spora.Gen.1
Cylance Unsafe
Zillya Trojan.GenericKD.Win32.37154
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/generic.ali2000010
K7GW Trojan ( 0050bd191 )
Cybereason malicious.7f8e80
Cyren W32/Cerber.TZKT-2022
Symantec Packed.Generic.493
ESET-NOD32 Win32/Filecoder.Cerber.K
Zoner Trojan.Win32.56584
APEX Malicious
Avast Win32:GenMalicious-NVZ [Trj]
ClamAV Win.Dropper.Ursnif-7446827-0
Kaspersky Trojan-Ransom.Win32.Zerber.frur
BitDefender Trojan.Ransom.Spora.Gen.1
NANO-Antivirus Trojan.Win32.Spora.enujra
ViRobot Trojan.Win32.Cerber.304690
MicroWorld-eScan Trojan.Ransom.Spora.Gen.1
Tencent Malware.Win32.Gencirc.10bbcab1
Ad-Aware Trojan.Ransom.Spora.Gen.1
Sophos ML/PE-A + Mal/Elenoocka-E
Comodo TrojWare.Win32.Spora.D@6yktl1
BitDefenderTheta Gen:NN.ZexaF.34608.sqX@ae0ru2g
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HPCERBER.SMONT4
McAfee-GW-Edition BehavesLike.Win32.SoftPulse.dc
FireEye Generic.mg.b59e8ec7f8e80d3d
Emsisoft Trojan-Ransom.Spora (A)
SentinelOne Static AI – Malicious PE
Avira TR/Spy.Golroted.IN
Microsoft Ransom:Win32/Cerber
AegisLab Trojan.Win32.Generic.4!c
ZoneAlarm Trojan-Ransom.Win32.Zerber.frur
GData Trojan.Ransom.Spora.Gen.1
AhnLab-V3 Trojan/Win32.Cerber.R198951
Acronis suspicious
McAfee Ransom-Spora!B59E8EC7F8E8
MAX malware (ai score=100)
VBA32 BScope.TrojanSpy.Ursnif
Malwarebytes Spyware.Ursnif
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_HPCERBER.SMONT4
Rising Ransom.Spora!8.E3EE (TFE:2:5xwEyO9q7vD)
Yandex Trojan.GenAsa!vHrDxHZlXvE
Ikarus Trojan-Ransom.FileCrypter
Fortinet W32/Kryptik.GKKB!tr
AVG Win32:GenMalicious-NVZ [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Cerber.HxMB2GYA

How to remove Win32/Filecoder.Cerber.K virus?

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 Win32/Filecoder.Cerber.K 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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If the guide doesn’t help you to remove Win32/Filecoder.Cerber.K 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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