Trojan-Ransom.Win32.Zerber.flud

What is Trojan-Ransom.Win32.Zerber.flud infection?

In this post you will certainly find regarding the interpretation of Trojan-Ransom.Win32.Zerber.flud as well as its unfavorable impact on your computer system. Such ransomware are a type of malware that is clarified by on the internet frauds to demand paying the ransom money by a sufferer.

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Most of the instances, Trojan-Ransom.Win32.Zerber.flud virus will certainly advise its targets to start funds move for the purpose of neutralizing the changes that the Trojan infection has actually presented to the target’s gadget.

Trojan-Ransom.Win32.Zerber.flud Summary

These modifications 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.
  • 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.
  • A process attempted to delay the analysis task.;
  • A process created a hidden window;
  • 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.
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • Deletes its original binary from disk;
  • Modifies boot configuration settings;
  • Exhibits behavior characteristic of Cerber ransomware;
  • 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.
  • Attempts to identify installed AV products by installation directory;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • 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 papers found on the target’s hard disk drive — so the victim 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.

Trojan-Ransom.Win32.Zerber.flud

The most typical channels through which Trojan-Ransom.Win32.Zerber.flud Ransomware Trojans are infused are:

  • By means of phishing e-mails;
  • As a consequence of individual ending up on a resource that hosts a destructive software;

As quickly as the Trojan is effectively injected, it will certainly either cipher the data on the victim’s PC or avoid the tool from operating in a correct way – while likewise positioning a ransom money note that states the need for the victims to impact the settlement for the objective of decrypting the papers or bring back the data system back to the initial condition. In most instances, the ransom note will certainly come up when the client restarts the COMPUTER after the system has already been damaged.

Trojan-Ransom.Win32.Zerber.flud circulation channels.

In various corners of the globe, Trojan-Ransom.Win32.Zerber.flud expands by jumps as well as bounds. However, the ransom notes as well as methods of obtaining the ransom money amount might differ depending upon specific regional (regional) settings. The ransom notes and tricks of obtaining the ransom quantity may vary depending on particular neighborhood (local) settings.

Ransomware injection

As an example:

    Faulty informs concerning unlicensed software.

    In particular locations, the Trojans typically wrongfully report having actually spotted some unlicensed applications enabled on the sufferer’s gadget. The alert after that demands the individual to pay the ransom money.

    Faulty statements concerning prohibited web content.

    In nations where software piracy is much less preferred, this approach is not as efficient for the cyber scams. Alternatively, the Trojan-Ransom.Win32.Zerber.flud popup alert might wrongly assert to be stemming from a law enforcement institution and also will report having located kid pornography or various other unlawful information on the device.

    Trojan-Ransom.Win32.Zerber.flud popup alert might wrongly assert to be obtaining from a legislation enforcement organization and also will report having located kid porn or various other unlawful data on the gadget. The alert will in a similar way have a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: 4A43AF31
md5: ba37b096680e7c38d0ca5139649538da
name: BA37B096680E7C38D0CA5139649538DA.mlw
sha1: ef17100dbc9933c7d8a64a9cd2ce29e74e1526af
sha256: d38b84c625fc7981739cf17f240005cfcd84661eaef8673ec112f63ddd385e43
sha512: a9055a30c72c4c378042efa65990e9fcd26227489bac6c75c93fae19b26eb0a1713e455415263797b42f56a88b4d2b583645a41cf0d9035296795dbd6168d300
ssdeep: 3072:h8iHl8wVUwgs0df4kRbuhFWVkPr1Jp9nYt4O5DUQJagVLiFtqJOhhen:hlbetf4MbuhFWVE1Jp9YmOSQJh8zL
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright xa9 Unpersoned His
InternalName: jobbed
FileVersion: 2.10
CompanyName: Unpersoned His
ProductName: jobbed oinomels stor
ProductVersion: 2.10
FileDescription: jobbed stent
OriginalFilename: jobbed.exe
Translation: 0x0409 0x04b0

Trojan-Ransom.Win32.Zerber.flud also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 0051c8bc1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.4691
Cynet Malicious (score: 100)
ALYac Gen:Trojan.Heur.RP.pq0@bSWSJrhi
Malwarebytes Malware.Heuristic.1003
Zillya Trojan.Kryptik.Win32.2834210
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (W)
Alibaba Ransom:Win32/Zerber.d886d036
K7GW Trojan ( 0051c8bc1 )
Cybereason malicious.6680e7
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.EYLT
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Zerber.flud
BitDefender Gen:Trojan.Heur.RP.pq0@bSWSJrhi
NANO-Antivirus Trojan.Win32.Zerber.evqtaj
MicroWorld-eScan Gen:Trojan.Heur.RP.pq0@bSWSJrhi
Tencent Win32.Trojan.Generic.Pfjb
Ad-Aware Gen:Trojan.Heur.RP.pq0@bSWSJrhi
Sophos Mal/Generic-S
Comodo Malware@#315acoym4cp4w
BitDefenderTheta AI:Packer.D3ED4F8D1F
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_Zerber.R002C0GAL21
McAfee-GW-Edition BehavesLike.Win32.Generic.dh
FireEye Generic.mg.ba37b096680e7c38
Emsisoft Gen:Trojan.Heur.RP.pq0@bSWSJrhi (B)
Jiangmin Trojan.Zerber.ebt
Avira TR/Crypt.XPACK.Gen
eGambit Unsafe.AI_Score_85%
Microsoft Ransom:Win32/Cerber.A
AegisLab Trojan.Win32.Buzus.kZ0o
GData Gen:Trojan.Heur.RP.pq0@bSWSJrhi
McAfee Artemis!BA37B096680E
MAX malware (ai score=97)
VBA32 TrojanRansom.Zerber
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_Zerber.R002C0GAL21
Rising Trojan.Generic@ML.100 (RDML:+pTJa0zFg98IARtH1+a8iw)
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.9361207.susgen
Fortinet W32/Kryptik.EYKI!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Trojan.Ransom.d66

How to remove Trojan-Ransom.Win32.Zerber.flud virus?

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 Trojan-Ransom.Win32.Zerber.flud 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 Trojan-Ransom.Win32.Zerber.flud 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/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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