Ransom.Cerber.A4

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

What is Ransom.Cerber.A4 infection?

In this article you will certainly locate regarding the meaning of Ransom.Cerber.A4 and also its unfavorable impact on your computer system. Such ransomware are a kind of malware that is specified by online fraudulences to demand paying the ransom money by a victim.

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In the majority of the situations, Ransom.Cerber.A4 infection will certainly advise its sufferers to launch funds transfer for the objective of counteracting the changes that the Trojan infection has presented to the victim’s tool.

Ransom.Cerber.A4 Summary

These adjustments can be as complies with:

  • 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;
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • 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.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the records situated on the victim’s hard disk — so the victim can no more use the data;
  • Preventing regular accessibility to the victim’s workstation;

Ransom.Cerber.A4

The most typical channels where Ransom.Cerber.A4 Ransomware Trojans are injected are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a repercussion of customer winding up on a resource that holds a malicious software application;

As quickly as the Trojan is effectively infused, it will either cipher the information on the target’s PC or prevent the tool from working in an appropriate manner – while also putting a ransom note that mentions the demand for the sufferers to effect the payment for the purpose of decrypting the papers or restoring the file system back to the preliminary problem. In most instances, the ransom note will come up when the client restarts the PC after the system has currently been harmed.

Ransom.Cerber.A4 circulation networks.

In different corners of the globe, Ransom.Cerber.A4 expands by jumps as well as bounds. Nevertheless, the ransom notes and also methods of obtaining the ransom money quantity may vary depending on specific neighborhood (local) setups. The ransom money notes as well as techniques of obtaining the ransom amount may vary depending on specific regional (local) setups.

Ransomware injection

For instance:

    Faulty notifies concerning unlicensed software application.

    In certain locations, the Trojans typically wrongfully report having spotted some unlicensed applications enabled on the victim’s tool. The alert then requires the individual to pay the ransom.

    Faulty statements about unlawful material.

    In nations where software program piracy is less prominent, this approach is not as effective for the cyber scams. Additionally, the Ransom.Cerber.A4 popup alert might incorrectly claim to be originating from a law enforcement organization and will report having located kid porn or other prohibited data on the gadget.

    Ransom.Cerber.A4 popup alert might falsely declare to be acquiring from a legislation enforcement organization as well as will certainly report having located kid porn or other prohibited information on the tool. The alert will in a similar way consist of a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 3EE8E8CF
md5: 5f15bf0d50a2cdc2a45539d99d37c876
name: 5F15BF0D50A2CDC2A45539D99D37C876.mlw
sha1: b820b9d5813a20c7c1da7f42309e6ba5531741b9
sha256: f1745825880a00af6c9a341ac6f4fe507a1cedd5132b31b98e4e735c8bf71359
sha512: 3f5d8be87fc49ad0a0c7e4501ef1013fb2e6526a78bf4f1ecbd6361c46953292050817a1836ff5fdb5e1dcf7f48acf80b99ee5b75207771f490f8b4af23f2d12
ssdeep: 6144:qPSWCfUxuNuUelUa4Z/uIjhXOmqGWQnLOpv29SPFwAPRNLIaj8X:qKWCNbn/dZ89Ma+CIaIX
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

InternalName: SmartRAM
FileDescription: Monitors and Optimizes memory usage to increase available physical memory.
CompanyName: IObit
Translation: 0x0409 0x04e4

Ransom.Cerber.A4 also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKDZ.70920
FireEye Generic.mg.5f15bf0d50a2cdc2
CAT-QuickHeal Ransom.Cerber.A4
Qihoo-360 HEUR/QVM20.1.7D80.Malware.Gen
ALYac Trojan.GenericKDZ.70920
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 0054f2ec1 )
BitDefender Trojan.GenericKDZ.70920
K7GW Trojan ( 005157221 )
CrowdStrike win/malicious_confidence_100% (D)
BitDefenderTheta Gen:NN.ZexaF.34590.Cq0@amIKBZjj
Cyren W32/Ransom.GX.gen!Eldorado
Symantec Packed.Generic.459
APEX Malicious
Paloalto generic.ml
Kaspersky HEUR:Trojan.Win32.Generic
NANO-Antivirus Trojan.Win32.Encoder.esmeqe
AegisLab Trojan.Win32.Generic.4!c
Rising Ransom.Cerber!8.3058 (CLOUD)
Ad-Aware Trojan.GenericKDZ.70920
Sophos ML/PE-A + Mal/Cerber-AL
Comodo TrojWare.Win32.Zonidel.AY@7kn16e
F-Secure Heuristic.HEUR/AGEN.1112215
DrWeb Trojan.Encoder.4691
TrendMicro Ransom_HPCERBER.SMALY5B
McAfee-GW-Edition BehavesLike.Win32.Ransomware.gh
Emsisoft Trojan.GenericKDZ.70920 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Generic.dytgp
Avira HEUR/AGEN.1112215
MAX malware (ai score=84)
Antiy-AVL Trojan/Win32.AGeneric
Microsoft Ransom:Win32/Cerber
Arcabit Trojan.Generic.D11508
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Win32.Trojan-Ransom.Cerber.AL
Cynet Malicious (score: 100)
AhnLab-V3 Win-Trojan/Cerber.Exp
Acronis suspicious
McAfee Ransomware-GCQ!5F15BF0D50A2
TACHYON Ransom/W32.Cerber.458752
VBA32 BScope.Trojan.Encoder
Malwarebytes Cerber.Ransom.Encrypt.DDS
Panda Trj/Genetic.gen
ESET-NOD32 a variant of Win32/Kryptik.FVYF
TrendMicro-HouseCall Ransom_HPCERBER.SMALY5B
Tencent Malware.Win32.Gencirc.10b5516e
Yandex Trojan.GenAsa!f3uFIhOzcAI
Ikarus Trojan.Win32.Filecoder
eGambit Unsafe.AI_Score_82%
Fortinet W32/Zamg.O!tr
AVG Win32:Malware-gen
Avast Win32:Malware-gen

How to remove Ransom.Cerber.A4 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.Cerber.A4 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Ransom.Cerber.A4 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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