Win32/Filecoder.Cerber.J

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

What is Win32/Filecoder.Cerber.J infection?

In this article you will certainly discover regarding the interpretation of Win32/Filecoder.Cerber.J and its unfavorable effect on your computer. Such ransomware are a type of malware that is clarified by on-line fraudulences to demand paying the ransom money by a target.

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Most of the situations, Win32/Filecoder.Cerber.J infection will advise its sufferers to launch funds transfer for the function of counteracting the changes that the Trojan infection has presented to the target’s tool.

Win32/Filecoder.Cerber.J 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.
  • Attempts to connect to a dead IP:Port (4 unique times);
  • 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.;
  • 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;
  • Creates an excessive number of UDP connection attempts to external IP addresses;
  • Performs some HTTP requests;
  • Uses Windows utilities for basic functionality;
  • Attempts to modify desktop wallpaper;
  • Exhibits behavior characteristic of Cerber ransomware;
  • 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 modify proxy settings. This trick used for inject malware into connection between browser and server;
  • 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.
  • Ciphering the files found on the sufferer’s hard disk drive — so the sufferer can no longer utilize the data;
  • Preventing normal accessibility to the victim’s workstation;
Similar behavior
Related domains
api.blockcypher.com Ransom.Crysis.A3
btc.blockr.io Ransom.Crysis.A3
bitaps.com Ransom.Crysis.A3
chain.so Ransom.Crysis.A3
ocsp.digicert.com Ransom.Crysis.A3

Win32/Filecoder.Cerber.J

The most typical channels through which Win32/Filecoder.Cerber.J are infused are:

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

As soon as the Trojan is successfully infused, it will either cipher the information on the victim’s computer or stop the tool from operating in a proper manner – while also placing a ransom note that states the demand for the victims to impact the repayment for the function of decrypting the papers or restoring the file system back to the initial condition. In a lot of circumstances, the ransom money note will come up when the client restarts the PC after the system has already been harmed.

Win32/Filecoder.Cerber.J distribution channels.

In various edges of the globe, Win32/Filecoder.Cerber.J grows by jumps and also bounds. Nonetheless, the ransom notes and also techniques of obtaining the ransom money quantity may vary depending on specific regional (local) settings. The ransom money notes and techniques of obtaining the ransom amount may differ depending on certain regional (local) settings.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software application.

    In particular locations, the Trojans commonly wrongfully report having spotted some unlicensed applications enabled on the target’s gadget. The alert then requires the user to pay the ransom.

    Faulty statements about illegal content.

    In countries where software piracy is much less preferred, this method is not as reliable for the cyber fraudulences. Additionally, the Win32/Filecoder.Cerber.J popup alert might wrongly declare to be deriving from a police organization and also will report having situated kid pornography or other illegal data on the gadget.

    Win32/Filecoder.Cerber.J popup alert might incorrectly claim to be deriving from a regulation enforcement establishment and will certainly report having located youngster porn or other illegal data on the device. The alert will similarly include a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 929C3D54
md5: ed1d1661eb3020adac351fe519880be5
name: ED1D1661EB3020ADAC351FE519880BE5.mlw
sha1: 70c5584bc859f369e957d64f59bd87a86d3729f0
sha256: 09668785fd292cf57582d16e4cb9d41a577cadadd96f6f8af704ae17fa4f434c
sha512: 46d0c8561b7381944a62232c44a8123104a8c60cb2f96e27e126c9128bb0c25867371aff560550e742550339c2da79e381835623750ea9fcc8d5cd142f09ad78
ssdeep: 6144:ztptrC5SVHHaCAXewOVYsFpDSXknKk7ihw2FBTO6XuvJ91Z8cb:JptWIVHHaC0rOisrSXknKkmO27DyJ91l
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Filecoder.Cerber.J also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Agent.CFTT
FireEye Generic.mg.ed1d1661eb3020ad
CAT-QuickHeal Ransom.Crysis.A3
McAfee Ransomware-FLTU!ED1D1661EB30
Cylance Unsafe
Zillya Trojan.Zerber.Win32.1716
AegisLab Trojan.Win32.Zerber.j!c
Sangfor Ransom.Win32.Cerber.J
CrowdStrike win/malicious_confidence_80% (D)
BitDefender Trojan.Agent.CFTT
K7GW Riskware ( 0040eff71 )
K7AntiVirus Riskware ( 0040eff71 )
Cyren W32/Cerber.BJ.gen!Eldorado
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Trojan.Agent-6241449-0
Kaspersky HEUR:Trojan.Win32.Generic
Alibaba Ransom:Win32/Cerber.dea57028
NANO-Antivirus Trojan.Win32.Zerber.enpqgv
ViRobot Trojan.Win32.Z.Zerber.302786
Rising Ransom.Cerber!8.3058 (CLOUD)
Ad-Aware Trojan.Agent.CFTT
Emsisoft Trojan.Agent.CFTT (B)
Comodo Malware@#2e0m22xy3816o
DrWeb Trojan.Encoder.10700
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_HPISDA.SM
McAfee-GW-Edition Ransomware-FLTU!ED1D1661EB30
Sophos ML/PE-A + Mal/Cerber-L
Ikarus Trojan.Win32.Filecoder
Jiangmin Trojan.Zerber.bov
Webroot W32.Trojan.Gen
Avira TR/Crypt.XPACK.Gen7
MAX malware (ai score=100)
Antiy-AVL Trojan[Ransom]/Win32.Zerber
Microsoft Ransom:Win32/Cerber.J
Arcabit Trojan.Agent.CFTT
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Agent.CFTT
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Zerber.C1921425
BitDefenderTheta Gen:NN.ZexaF.34590.suZ@aS1kCMhi
ALYac Trojan.Ransom.Cerber
TACHYON Ransom/W32.Cerber.302786
VBA32 BScope.Trojan.Encoder
Malwarebytes Generic.Malware/Suspicious
Panda Trj/CI.A
ESET-NOD32 Win32/Filecoder.Cerber.J
TrendMicro-HouseCall TROJ_HPISDA.SM
Tencent Malware.Win32.Gencirc.10bb63fd
Yandex Trojan.Zerber!942SsAvCK1k
SentinelOne Static AI – Malicious PE
Fortinet W32/Generic.AP.B9028!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Cerber.HwoCWp8A

How to remove Win32/Filecoder.Cerber.J 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.

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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.

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.J 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.J 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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