Ransom:Win32/WannaCrypt.A!rfn
Ava White
Updated on April 20, 2026
What is Ransom:Win32/WannaCrypt.A!rfn infection?
In this short article you will locate about the interpretation of Ransom:Win32/WannaCrypt.A!rfn and its adverse impact on your computer. Such ransomware are a kind of malware that is elaborated by on-line scams to demand paying the ransom money by a target.
Most of the cases, Ransom:Win32/WannaCrypt.A!rfn ransomware will certainly instruct its victims to start funds transfer for the purpose of counteracting the changes that the Trojan infection has presented to the target’s device.
Ransom:Win32/WannaCrypt.A!rfn 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.
- Possible date expiration check, exits too soon after checking local time;
- Detected script timer window indicative of sleep style evasion;
- 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.
- The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
- A scripting utility was executed;
- Uses Windows utilities for basic functionality;
- Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
- Steals private information from local Internet browsers;
- 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
- Writes a potential ransom message to disk;
- 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 modify proxy settings. This trick used for inject malware into connection between browser and server;
- Uses suspicious command line tools or Windows utilities;
- Ciphering the records found on the target’s hard drive — so the target can no longer make use of the information;
- Preventing routine 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/WannaCrypt.A!rfn
The most common channels where Ransom:Win32/WannaCrypt.A!rfn Ransomware are infused are:
- By ways of phishing e-mails;
- As an effect of individual ending up on a resource that organizes a harmful software program;
As quickly as the Trojan is effectively injected, it will certainly either cipher the data on the victim’s computer or stop the gadget from functioning in a proper way – while also placing a ransom note that mentions the need for the sufferers to effect the settlement for the objective of decrypting the documents or recovering the documents system back to the preliminary condition. In a lot of instances, the ransom money note will come up when the customer reboots the PC after the system has actually currently been harmed.
Ransom:Win32/WannaCrypt.A!rfn circulation networks.
In different corners of the globe, Ransom:Win32/WannaCrypt.A!rfn expands by leaps and bounds. Nonetheless, the ransom money notes and tricks of extorting the ransom money quantity may differ relying on certain regional (regional) settings. The ransom notes and also methods of obtaining the ransom money quantity may differ depending on specific local (local) settings.
For instance:
Faulty signals regarding unlicensed software program.
In particular locations, the Trojans frequently wrongfully report having actually spotted some unlicensed applications enabled on the sufferer’s gadget. The alert then requires the user to pay the ransom.
Faulty statements concerning illegal content.
In nations where software program piracy is much less prominent, this approach is not as effective for the cyber fraudulences. Alternatively, the Ransom:Win32/WannaCrypt.A!rfn popup alert may wrongly assert to be stemming from a police institution as well as will report having located youngster pornography or various other unlawful information on the tool.
Ransom:Win32/WannaCrypt.A!rfn popup alert may falsely claim to be deriving from a legislation enforcement institution and also will certainly report having situated youngster pornography or other unlawful information on the tool. The alert will in a similar way consist of a need for the individual to pay the ransom.
Technical details
File Info:
crc32: E1E915AAmd5: a22c66ebd44d740c5a8ed280a75da5f2name: A22C66EBD44D740C5A8ED280A75DA5F2.mlwsha1: 5a93e571813e41144c3d0e33ea38310d451753d5sha256: 280a929b0146687f7bb1bb15ae66b4fbda373f53a28cf7632c85fb4d70d2dbcesha512: 066dde3f7c38a95f5bfd054edc8722b86627a760e9ebb526514eac9ff7a9015f7887deb95b852a9ce2b3f8751ec1e87cd7310ac22643f5d1f970f85303155296ssdeep: 6144:HI79UQW3NKS0bv39bxiyDHLaU8IIX0mugC3XxeM:HI70Nr0bvtpD2U8xXBCnUMtype: MS-DOS executable, MZ for MS-DOSVersion Info:
LegalCopyright: xa9 Microsoft Corporation. All rights reserved.InternalName: findstrFileVersion: 6.1.7601.17514 (win7sp1_rtm.101119-1850)CompanyName: Microsoft CorporationProductName: Microsoftxae Windowsxae Operating SystemProductVersion: 6.1.7601.17514FileDescription: Find String (QGREP) UtilityOriginalFilename: FINDSTR.EXETranslation: 0x0409 0x04b0
Ransom:Win32/WannaCrypt.A!rfn also known as:
| GridinSoft | Trojan.Ransom.Gen |
| Bkav | W32.AIDetect.malware1 |
| K7AntiVirus | Trojan ( 005376ae1 ) |
| Elastic | malicious (high confidence) |
| Cynet | Malicious (score: 100) |
| ALYac | GenPack:Generic.Ransom.WannaCryptor.9D275894 |
| Cylance | Unsafe |
| Zillya | Trojan.TorJok.Win32.3 |
| Sangfor | Trojan.Win32.Save.a |
| CrowdStrike | win/malicious_confidence_100% (D) |
| Alibaba | Ransom:Win32/TorJok.495cc486 |
| K7GW | Adware ( 004cbcf31 ) |
| Cybereason | malicious.bd44d7 |
| Symantec | Ransom.Wannacry |
| ESET-NOD32 | a variant of Win32/Filecoder.WannaCryptor.B |
| APEX | Malicious |
| Avast | Win32:Trojan-gen |
| Kaspersky | Trojan.Win32.TorJok.t |
| BitDefender | GenPack:Generic.Ransom.WannaCryptor.9D275894 |
| NANO-Antivirus | Trojan.Win32.Wanna.eqmjxy |
| MicroWorld-eScan | GenPack:Generic.Ransom.WannaCryptor.9D275894 |
| Tencent | Win32.Trojan.Raas.Auto |
| Ad-Aware | GenPack:Generic.Ransom.WannaCryptor.9D275894 |
| Sophos | Mal/Generic-S |
| F-Secure | |
| BitDefenderTheta | Gen:NN.ZexaF.34608.qmuaaGfoyYki |
| VIPRE | Trojan.Win32.Generic!BT |
| TrendMicro | Ransom_WCRY.F117FT |
| McAfee-GW-Edition | BehavesLike.Win32.Generic.dc |
| FireEye | Generic.mg.a22c66ebd44d740c |
| Emsisoft | GenPack:Generic.Ransom.WannaCryptor.9D275894 (B) |
| SentinelOne | Static AI – Suspicious PE |
| Avira | TR/Patched.Gen |
| Antiy-AVL | Trojan[Backdoor]/Win32.Farfli |
| Kingsoft | Win32.Heur.KVMH008.a.(kcloud) |
| Microsoft | Ransom:Win32/WannaCrypt.A!rfn |
| Arcabit | GenPack:Generic.Ransom.WannaCryptor.9D275894 |
| AegisLab | Trojan.Multi.Generic.4!c |
| ZoneAlarm | Trojan.Win32.TorJok.t |
| GData | GenPack:Generic.Ransom.WannaCryptor.9D275894 |
| AhnLab-V3 | Trojan/Win32.Gen |
| Acronis | suspicious |
| McAfee | Artemis!A22C66EBD44D |
| MAX | malware (ai score=81) |
| VBA32 | BScope.Backdoor.Farfli |
| Malwarebytes | Malware.Heuristic.1003 |
| Panda | Trj/CI.A |
| TrendMicro-HouseCall | Ransom_WCRY.F117FT |
| Rising | Ransom.WanaCrypt!1.AAE9 (CLOUD) |
| Yandex | Trojan.Agent!1mosjI9pqRo |
| Ikarus | Trojan-PSW.Papras |
| MaxSecure | Trojan.Malware.121218.susgen |
| Fortinet | W32/Wanna.K!tr |
| AVG | Win32:Trojan-gen |
| Paloalto | generic.ml |
| Qihoo-360 | Win32/Ransom.WannaCry.HxIBar8A |
How to remove Ransom:Win32/WannaCrypt.A!rfn 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 Ransom:Win32/WannaCrypt.A!rfn 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 Ransom:Win32/WannaCrypt.A!rfn you can always ask me in the comments for getting help.
References
- GridinSoft Anti-Malware Review from HowToFix site:
- More information about GridinSoft products:
