Ransom:Win32/Cerber.B

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

What is Ransom:Win32/Cerber.B infection?

In this article you will discover about the definition of Ransom:Win32/Cerber.B and its adverse influence on your computer system. Such ransomware are a form of malware that is specified by online frauds to require paying the ransom by a target.

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In the majority of the situations, Ransom:Win32/Cerber.B infection will certainly advise its victims to start funds transfer for the function of reducing the effects of the changes that the Trojan infection has introduced to the sufferer’s device.

Ransom:Win32/Cerber.B Summary

These adjustments 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Enumerates user accounts on the system;
  • 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.
  • Possible date expiration check, exits too soon after checking local time;
  • 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.

  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Unconventionial language used in binary resources: Turkish;
  • Uses Windows utilities for basic functionality;
  • Executed a process and injected code into it, probably while unpacking;
  • Deletes its original binary from disk;
  • 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!
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • Mimics the file times of a Windows system file;
  • 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
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Creates a copy of itself;
  • 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 records located on the victim’s hard disk — so the target can no more 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.

Ransom:Win32/Cerber.B

The most normal networks whereby Ransom:Win32/Cerber.B Ransomware are infused are:

  • By methods of phishing emails;
  • As a consequence of customer ending up on a resource that hosts a harmful software;

As quickly as the Trojan is efficiently infused, it will certainly either cipher the data on the sufferer’s PC or stop the gadget from working in an appropriate manner – while also positioning a ransom money note that discusses the need for the targets to impact the settlement for the function of decrypting the documents or bring back the data system back to the first condition. In the majority of instances, the ransom money note will turn up when the customer reboots the PC after the system has actually currently been damaged.

Ransom:Win32/Cerber.B circulation channels.

In various edges of the world, Ransom:Win32/Cerber.B grows by leaps and bounds. However, the ransom money notes and methods of extorting the ransom money quantity might vary depending upon certain local (local) setups. The ransom notes and techniques of extorting the ransom quantity may differ depending on particular regional (regional) settings.

Ransomware injection

For instance:

    Faulty informs about unlicensed software.

    In certain areas, the Trojans typically wrongfully report having found some unlicensed applications enabled on the victim’s device. The alert then requires the customer to pay the ransom money.

    Faulty statements regarding illegal content.

    In countries where software program piracy is much less prominent, this approach is not as efficient for the cyber frauds. Conversely, the Ransom:Win32/Cerber.B popup alert may falsely assert to be originating from a law enforcement institution as well as will certainly report having situated child pornography or various other illegal data on the tool.

    Ransom:Win32/Cerber.B popup alert may falsely declare to be deriving from a law enforcement organization and will certainly report having situated youngster porn or other prohibited data on the tool. The alert will likewise contain a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 80408B9E
md5: a2b27062a4eb1ca0c01d973d4b01b537
name: A2B27062A4EB1CA0C01D973D4B01B537.mlw
sha1: 390426d84d0a0856d819cdb187aa3ed14388439e
sha256: 8b902c52fa261bbe033bf0b33cbc45ec5f364571ab9a2c8b4ad47053c0a6d653
sha512: 8a9b4c6ade25c05eeb5d64df1d9f3e23f1fbac6b4513b6a16eb9d889fba3b883afe511ade3ad5c2113d2e2e93cfa7b97446d8ac23342f30e1e39c3ac17e3aa66
ssdeep: 1536:HeWL80y2QD6B8yphdUsTKt423CynjFffIh5SMoDIykItCqPvCE2MUzr:ZQrQWsTu423CgFikM5YRKE2Mw
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0409 0x04b0
InternalName: xSNA0f
FileVersion: 1.00.0152
CompanyName: flAsh Fdae and others you may know
Comments: Word Up | Word Trek answers for Welcome! We have all the answers
ProductName: Simulator
ProductVersion: 1.00.0152
FileDescription: proven to deliver business and save money
OriginalFilename: xSNA0f.exe

Ransom:Win32/Cerber.B also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 0056fe3c1 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.4691
CynetMalicious (score: 100)
ALYacTrojan.Kovter.Gen.1
CylanceUnsafe
ZillyaTrojan.Zerber.Win32.72
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaRansom:Win32/Zerber.c0b9e3bc
K7GWTrojan ( 0056fe3c1 )
Cybereasonmalicious.2a4eb1
SymantecRansom.Cerber!g5
ESET-NOD32Win32/Filecoder.Cerber.B
APEXMalicious
AvastWin32:Malware-gen
ClamAVWin.Ransomware.Zerber-9832506-0
KasperskyTrojan-Ransom.Win32.Zerber.wx
BitDefenderTrojan.Kovter.Gen.1
NANO-AntivirusTrojan.Win32.Filecoder.ecnwgm
MicroWorld-eScanTrojan.Kovter.Gen.1
TencentMalware.Win32.Gencirc.114bc194
Ad-AwareTrojan.Kovter.Gen.1
SophosML/PE-A
BitDefenderThetaGen:NN.ZevbaF.34608.im3@aCdSC9bO
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.Generic.cc
FireEyeGeneric.mg.a2b27062a4eb1ca0
EmsisoftTrojan.Kovter.Gen.1 (B)
SentinelOneStatic AI – Malicious PE
AviraHEUR/AGEN.1113142
eGambitUnsafe.AI_Score_79%
MicrosoftRansom:Win32/Cerber.B
AegisLabTrojan.Win32.Zerber.j!c
GDataTrojan.Kovter.Gen.1
AhnLab-V3Trojan/Win32.Zerber.R289207
McAfeeGenericR-LNH!A2B27062A4EB
MAXmalware (ai score=100)
VBA32Hoax.Zerber
PandaTrj/CI.A
RisingTrojan.Injector!8.C4 (TFE:5:Wi0umatZq9G)
YandexTrojan.GenAsa!OF2LG7aRrMM
IkarusTrojan.Win32.SelfDel
FortinetW32/Injector.CZDF!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.Cerber.HgIASOsA

How to remove Ransom:Win32/Cerber.B 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

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:Win32/Cerber.B 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:Win32/Cerber.B 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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