Trojan-Ransom.Win32.Zerber.fjna
Ava White
Updated on April 29, 2026
What is Trojan-Ransom.Win32.Zerber.fjna infection?
In this article you will certainly discover about the definition of Trojan-Ransom.Win32.Zerber.fjna and its unfavorable influence on your computer system. Such ransomware are a type of malware that is specified by online scams to require paying the ransom by a sufferer.
Most of the cases, Trojan-Ransom.Win32.Zerber.fjna virus will instruct its sufferers to initiate funds transfer for the function of neutralizing the amendments that the Trojan infection has presented to the sufferer’s tool.
Trojan-Ransom.Win32.Zerber.fjna Summary
These alterations 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.
- 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.;
- 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;
- 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.
- HTTP traffic contains suspicious features which may be indicative of malware related traffic;
- Creates an excessive number of UDP connection attempts to external IP addresses;
- Performs some HTTP requests;
- Uses Windows utilities for basic functionality;
- Attempts to delete volume shadow copies;
- 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;
- Creates a copy of itself;
- Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
- Attempts to modify Explorer settings to prevent hidden files from being displayed;
- Uses suspicious command line tools or Windows utilities;
- Ciphering the records situated on the sufferer’s hard disk drive — so the sufferer can no longer utilize the data;
- Preventing normal access 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.
| ip-api.com | Trojan.Ransom.Cerber.1 |
Trojan-Ransom.Win32.Zerber.fjna
The most normal channels through which Trojan-Ransom.Win32.Zerber.fjna Ransomware Trojans are injected are:
- By methods of phishing emails;
- As a repercussion of individual ending up on a resource that holds a harmful software program;
As soon as the Trojan is successfully injected, it will certainly either cipher the information on the victim’s PC or stop the tool from functioning in a proper way – while additionally positioning a ransom note that discusses the requirement for the targets to impact the payment for the function of decrypting the files or bring back the documents system back to the first condition. In a lot of instances, the ransom money note will show up when the client restarts the COMPUTER after the system has already been harmed.
Trojan-Ransom.Win32.Zerber.fjna distribution networks.
In different corners of the globe, Trojan-Ransom.Win32.Zerber.fjna grows by jumps and bounds. Nevertheless, the ransom money notes as well as tricks of obtaining the ransom quantity may differ relying on certain local (regional) settings. The ransom notes as well as techniques of obtaining the ransom amount may vary depending on specific local (regional) setups.
For example:
Faulty informs regarding unlicensed software program.
In certain areas, the Trojans commonly wrongfully report having discovered some unlicensed applications enabled on the victim’s device. The sharp then demands the individual to pay the ransom money.
Faulty declarations concerning illegal web content.
In nations where software piracy is less prominent, this method is not as efficient for the cyber scams. Additionally, the Trojan-Ransom.Win32.Zerber.fjna popup alert might wrongly assert to be stemming from a law enforcement establishment and also will certainly report having located kid pornography or other illegal data on the device.
Trojan-Ransom.Win32.Zerber.fjna popup alert might incorrectly assert to be obtaining from a law enforcement organization and will report having situated youngster porn or other unlawful information on the gadget. The alert will similarly contain a need for the user to pay the ransom.
Technical details
File Info:
crc32: 5F0C2F54md5: bc04641f0adc44c86a89c13534cce911name: BC04641F0ADC44C86A89C13534CCE911.mlwsha1: 0db672781acc5ddec9363da5f9247e11e7599658sha256: 7f3d3560733fd67d2f9e0f9ecdc093f819d947f997ec75ae681cc7055348bbdfsha512: a2bc7718d8ec671b206b4284c26176d905bc181ea4ca0aa3cdbbc797d2a24e161c3ebe2379f8766c9f1cf325328d67363255a59a00acb1c87ae884fa193c3224ssdeep: 6144:2r0guBoPSBuSVVcNTtxSjbqLfpQNF+/uv926NCr:2rCxPVuNJxDfpQKWM6NCrtype: PE32 executable (GUI) Intel 80386, for MS WindowsVersion Info:
ProductName: Win RAR Translation: 0x0409 0x04e4
Trojan-Ransom.Win32.Zerber.fjna also known as:
| GridinSoft | Trojan.Ransom.Gen |
| Bkav | W32.AIDetect.malware1 |
| Elastic | malicious (high confidence) |
| MicroWorld-eScan | Trojan.Ransom.Cerber.1 |
| FireEye | Generic.mg.bc04641f0adc44c8 |
| CAT-QuickHeal | Ransom.Cerber.YY2 |
| McAfee | GenericRXDI-TT!BC04641F0ADC |
| Cylance | Unsafe |
| VIPRE | Trojan.Win32.Generic!BT |
| AegisLab | Trojan.Win32.Generic.4!c |
| Sangfor | Ransom.Win32.Cerber_44.se |
| K7AntiVirus | Trojan ( 005224381 ) |
| BitDefender | Trojan.Ransom.Cerber.1 |
| K7GW | Trojan ( 005224381 ) |
| CrowdStrike | win/malicious_confidence_100% (D) |
| BitDefenderTheta | AI:Packer.562983A120 |
| Cyren | W32/Cerber.D2.gen!Eldorado |
| Symantec | Packed.Generic.459 |
| Baidu | Win32.Trojan.Kryptik.avk |
| APEX | Malicious |
| Avast | Win32:Malware-gen |
| Kaspersky | Trojan-Ransom.Win32.Zerber.fjna |
| Alibaba | Ransom:Win32/Zerber.3b5217d3 |
| NANO-Antivirus | Trojan.Win32.Zerber.evrhcx |
| Tencent | Win32.Trojan.Zerber.Pezc |
| Ad-Aware | Trojan.Ransom.Cerber.1 |
| Sophos | Mal/Generic-R + Mal/Cerber-B |
| Comodo | TrojWare.Win32.Kryptik.ERJ@6l0vie |
| F-Secure | |
| DrWeb | Trojan.Encoder.4691 |
| TrendMicro | Ransom_HPCERBER.SM3 |
| McAfee-GW-Edition | BehavesLike.Win32.Dropper.fm |
| Emsisoft | Trojan.Ransom.Cerber.1 (B) |
| Ikarus | Trojan.Win32.Crypt |
| Avira | TR/Crypt.ZPACK.Gen7 |
| MAX | malware (ai score=100) |
| Antiy-AVL | Trojan/Win32.SGeneric |
| Microsoft | Ransom:Win32/Cerber.A |
| Arcabit | Trojan.Ransom.Cerber.1 |
| ZoneAlarm | Trojan-Ransom.Win32.Zerber.fjna |
| GData | Trojan.Ransom.Cerber.1 |
| Cynet | Malicious (score: 100) |
| AhnLab-V3 | Win-Trojan/Cerber.Gen |
| Acronis | suspicious |
| VBA32 | BScope.Trojan.Tiggre |
| ALYac | Trojan.Ransom.Cerber.1 |
| Malwarebytes | Malware.AI.1147884621 |
| Panda | Trj/GdSda.A |
| ESET-NOD32 | a variant of Win32/Kryptik.FFGT |
| TrendMicro-HouseCall | Ransom_HPCERBER.SM3 |
| Rising | Ransom.Cerber!8.3058 (C64:YzY0OvNhdA0uQVxr) |
| Yandex | Trojan.Zerber!gRy2/xnquTs |
| SentinelOne | Static AI – Malicious PE |
| Fortinet | W32/Kryptik.HCAW!tr |
| AVG | Win32:Malware-gen |
| Paloalto | generic.ml |
| Qihoo-360 | Win32/Ransom.Cerber.HxQBRBYA |
How to remove Trojan-Ransom.Win32.Zerber.fjna ransomware?
There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft">2.
Download GridinSoft Anti-Malware.
You can download GridinSoft Anti-Malware by clicking the button below:
Download GridinSoft Anti-MalwareRun 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.
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.
Press “Install” button.
Once installed, Anti-Malware will automatically run.
Wait for the Anti-Malware scan to complete.
GridinSoft Anti-Malware will automatically start scanning your system for Trojan-Ransom.Win32.Zerber.fjna 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.
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.
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 Anti-Malware
If the guide doesn’t help you to remove Trojan-Ransom.Win32.Zerber.fjna you can always ask me in the comments for getting help.
References
- GridinSoft Anti-Malware Review from HowToFix site:
- More information about GridinSoft products:
