Win32/Filecoder.Cerber.S

What is Win32/Filecoder.Cerber.S infection?

In this article you will locate regarding the definition of Win32/Filecoder.Cerber.S and its unfavorable impact on your computer. Such ransomware are a form of malware that is elaborated by on-line fraudulences to require paying the ransom money by a target.

Most of the cases, Win32/Filecoder.Cerber.S ransomware will instruct its targets to launch funds move for the objective of counteracting the changes that the Trojan infection has presented to the target’s gadget.

Win32/Filecoder.Cerber.S Summary

These adjustments 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.
  • Presents an Authenticode digital signature;
  • 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 attempted to delay the analysis task.;
  • A process created a hidden window;
  • Creates an excessive number of UDP connection attempts to external IP addresses;
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • Uses Windows utilities for basic functionality;
  • Attempts to modify desktop wallpaper;
  • 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!
  • Attempts to execute a binary from a dead or sinkholed URL;
  • Writes a potential ransom message to disk;
  • 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.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the files found on the sufferer’s hard disk — so the sufferer can no longer utilize the information;
  • Preventing normal accessibility to the target’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.S

One of the most normal channels where Win32/Filecoder.Cerber.S are injected are:

  • By ways of phishing e-mails;
  • As a consequence of user ending up on a resource that holds a malicious software application;

As soon as the Trojan is efficiently infused, it will either cipher the information on the victim’s computer or prevent the device from working in a proper manner – while also putting a ransom money note that points out the need for the victims to effect the payment for the objective of decrypting the papers or recovering the data system back to the initial problem. In the majority of instances, the ransom money note will show up when the client restarts the PC after the system has actually already been damaged.

Win32/Filecoder.Cerber.S distribution networks.

In various corners of the world, Win32/Filecoder.Cerber.S expands by jumps as well as bounds. Nonetheless, the ransom money notes as well as tricks of obtaining the ransom money amount may differ depending upon particular regional (regional) settings. The ransom money notes and also tricks of extorting the ransom quantity might differ depending on particular regional (local) setups.

Ransomware injection

For example:

    Faulty signals regarding unlicensed software program.

    In specific areas, the Trojans usually wrongfully report having identified some unlicensed applications enabled on the sufferer’s tool. The alert then demands the customer to pay the ransom.

    Faulty declarations concerning prohibited material.

    In nations where software program piracy is less preferred, this method is not as effective for the cyber frauds. Alternatively, the Win32/Filecoder.Cerber.S popup alert may wrongly assert to be originating from a police organization as well as will report having located child pornography or various other prohibited data on the device.

    Win32/Filecoder.Cerber.S popup alert might falsely claim to be deriving from a legislation enforcement organization and will certainly report having situated kid porn or various other illegal information on the gadget. The alert will likewise include a need for the user to pay the ransom.

Technical details

File Info:

crc32: 7E00956Amd5: ba5c25351216e2f8d24fc19f97e91be1name: BA5C25351216E2F8D24FC19F97E91BE1.mlwsha1: 0a35383d6e710e9da6cad5a95a413717889c05d4sha256: 1ce3d05a944b51bc86dc790a5ec460603aefa5cf6fb15be79607cd70d3cfa8d9sha512: ea2ce3f19ea54683612b760a329f9597f12b47a9df41e7c7f717d4a7e37f213d0b4c69ce77715febac767f4e500b11981f1f3caad238c4bc25d68b055206e571ssdeep: 6144:y4pX7VB1eDLW/2Jy3kWs5BNNAbiQIaNAoxNaCVFMUx+G9uWaV0:/BADqk9vfyNXQKhpgWaCtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

FileDescription: Advanced SystemCare DisplayCompanyName: IObit Translation: 0x0409 0x04e4

Win32/Filecoder.Cerber.S also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 005224381 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.4691
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.MauvaiseRI.S5249763
ALYac Trojan.Ransom.Cerber
Cylance Unsafe
Zillya Trojan.Zerber.Win32.3347
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Zerber.1060d1d8
K7GW Trojan ( 005224381 )
Cybereason malicious.51216e
Cyren W32/Cerber.A.gen!Eldorado
Symantec Ransom.Cerber
ESET-NOD32 Win32/Filecoder.Cerber.S
APEX Malicious
Avast Win32:DangerousSig [Trj]
Kaspersky Trojan-Ransom.Win32.Zerber.ejgi
BitDefender Gen:Variant.Ransom.Cerber.752
NANO-Antivirus Trojan.Win32.Zerber.ercgqk
MicroWorld-eScan Gen:Variant.Ransom.Cerber.752
Ad-Aware Gen:Variant.Ransom.Cerber.752
Sophos Troj/Cerber-ANM
Comodo Malware@#3v98oa3r5swaq
BitDefenderTheta Gen:NN.ZexaF.34692.Fq1@aGpmaRaj
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CERBER.VSAHBQ
McAfee-GW-Edition Ransomware-GCQ!BA5C25351216
FireEye Generic.mg.ba5c25351216e2f8
Emsisoft Trojan-Ransom.FileCoder (A)
SentinelOne Static AI – Malicious PE
Jiangmin TrojanRansom.Zerber.a
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1123233
eGambit Generic.Malware
Microsoft Ransom:Win32/Betisrypt.C!bit
Arcabit Trojan.Ransom.Cerber.752
AegisLab Trojan.Win32.Zerber.4!c
GData Gen:Variant.Ransom.Cerber.752
AhnLab-V3 Trojan/Win32.Crypt.C2044610
Acronis suspicious
McAfee Ransomware-GCQ!BA5C25351216
MAX malware (ai score=99)
VBA32 Trojan.Encoder
Panda Trj/RansomCrypt.L
TrendMicro-HouseCall Ransom_CERBER.VSAHBQ
Rising Trojan.Kryptik!1.ABBD (CLASSIC)
Yandex Trojan.GenAsa!kD9e7UPX/Eo
Ikarus Trojan-Ransom.Aleta
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Injector.EETM!tr
AVG Win32:DangerousSig [Trj]
Paloalto generic.ml

How to remove Win32/Filecoder.Cerber.S ransomware?

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.Cerber.S 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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