Amnesia.F Ransomware
Threat Scorecard
EnigmaSoft Threat Scorecard
EnigmaSoft Threat Scorecards are assessment reports for different malware threats which have been collected and analyzed by our research team. EnigmaSoft Threat Scorecards evaluate and rank threats using several metrics including real-world and potential risk factors, trends, frequency, prevalence, and persistence. EnigmaSoft Threat Scorecards are updated regularly based on our research data and metrics and are useful for a wide range of computer users, from end users seeking solutions to remove malware from their systems to security experts analyzing threats.
EnigmaSoft Threat Scorecards display a variety of useful information, including:
Popularity Rank: The ranking of a particular threat in EnigmaSoft’s Threat Database.
Severity Level: The determined severity level of an object, represented numerically, based on our risk modeling process and research, as explained in our Threat Assessment Criteria.
Infected Computers: The number of confirmed and suspected cases of a particular threat detected on infected computers as reported by SpyHunter.
See also Threat Assessment Criteria.
| Threat Level: | 100 % (High) |
| Infected Computers: | 27 |
| First Seen: | February 22, 2022 |
| Last Seen: | February 12, 2026 |
| OS(es) Affected: | Windows |
The detection of Amnesia.F Ransomware on your system indicates a serious security threat that requires immediate attention. Ransomware is a type of malware that encrypts your files and demands payment in exchange for the decryption key. It is essential to understand the nature of this threat and take prompt action to remove it and prevent further damage.
Table of Contents
What Is Amnesia.F Ransomware?
Ransomware, like Amnesia.F Ransomware, is a malicious software designed to extort money from its victims by encrypting their files and making them inaccessible. The primary goal of ransomware is to force the victim to pay a ransom in exchange for the decryption key. However, paying the ransom does not guarantee that the attacker will provide the decryption key or that the files will be restored.
How Amnesia.F Ransomware Operates
Ransomware typically operates by exploiting vulnerabilities in software or using social engineering tactics to trick users into installing the malware. Once installed, the malware scans the system for files to encrypt, such as documents, images, and videos. The encrypted files are then rendered inaccessible, and a ransom demand is displayed on the screen. The attackers may use various methods to spread the malware, including phishing emails, infected software downloads, and exploited vulnerabilities in operating systems or applications.
Symptoms of Infection
The symptoms of a ransomware infection can vary, but common signs include:
- Files becoming inaccessible or encrypted
- Ransom demands displayed on the screen
- Unusual system behavior, such as slow performance or crashes
- New, unfamiliar files or folders appearing on the system
- Changes to system settings or configuration
If you suspect that your system has been infected with Amnesia.F Ransomware, it is crucial to act quickly to minimize the damage.
How to Remove Amnesia.F Ransomware
To remove Amnesia.F Ransomware from your system, follow these steps:
- Boot your system in Safe Mode with Networking to prevent the malware from loading
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove the malware
- Uninstall any suspicious programs or applications that may be related to the malware
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons
- Reboot your system and perform another full scan to ensure that the malware has been completely removed
It is essential to be cautious when removing malware, as some files may be damaged or encrypted, and removing them could result in data loss.
Conclusion
The detection of Amnesia.F Ransomware is a serious security threat that requires immediate attention. By understanding how ransomware operates and taking prompt action to remove it, you can minimize the damage and prevent further infection. Remember to always use reputable anti-malware tools, keep your software up-to-date, and be cautious when opening emails or downloading attachments from unknown sources. By taking these precautions, you can help protect your system and data from the threat of Amnesia.F Ransomware and other types of malware.
Analysis Report
General information
| Family Name: | Amnesia.F Ransomware |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
818361e0e703b8b0fa93aee56951153c
SHA1:
e00b5d8b411aaab41449ff9ad66a5228096fa4cc
SHA256:
8227FB14F49B9DE423558F8B7AD0F0E43EFD6D81C6CDBD2881AAEE0AD2F61D98
File Size:
1.28 MB, 1282560 bytes
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Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have exports table
- File doesn't have security information
- File has TLS information
- File is 32-bit executable
- File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
- File is either console or GUI application
- File is Native application (NOT .NET application)
- File is not packed
- IMAGE_FILE_DLL is not set inside PE header (Executable)
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- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Traits
- HighEntropy
- No Version Info
- x86
Block Information
Block Information
During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.| Total Blocks: | 3,587 |
|---|---|
| Potentially Malicious Blocks: | 55 |
| Whitelisted Blocks: | 3,525 |
| Unknown Blocks: | 7 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
Registry Modifications
Registry Modifications
This section lists registry keys and values that were created, modified and/or deleted by samples in this family. Windows Registry activity can provide valuable insight into malware functionality. Additionally, malware often creates registry values to allow itself to automatically start and indefinitely persist after an initial infection has compromised the system.| Key::Value | Data | API Name |
|---|---|---|
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | 炭뽰餻ǜ | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | 芳뿠餻ǜ | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | 足쁐餻ǜ | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | 뀶살餻ǜ | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | 焿섖餻ǜ | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | 堯셿餻ǜ | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | 曕쇯餻ǜ | RegNtPreCreateKey |
Windows API Usage
Windows API Usage
This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.| Category | API |
|---|---|
| Process Manipulation Evasion |
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| Process Shell Execute |
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| Syscall Use |
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| Anti Debug |
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| User Data Access |
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| Process Terminate |
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Shell Command Execution
Shell Command Execution
This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.
C:\WINDOWS\system32\cmd.exe C:\WINDOWS\system32\cmd.exe /c net stop MSDTC
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C:\WINDOWS\system32\net.exe net stop MSDTC
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C:\WINDOWS\system32\cmd.exe C:\WINDOWS\system32\cmd.exe /c bcdedit /set {default} bootstatuspolicy ignoreallfailures
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C:\WINDOWS\system32\cmd.exe C:\WINDOWS\system32\cmd.exe /c bcdedit /set {default} recoveryenabled no
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C:\WINDOWS\system32\cmd.exe C:\WINDOWS\system32\cmd.exe /c wbadmin delete catalog -quiet
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C:\WINDOWS\system32\cmd.exe C:\WINDOWS\system32\cmd.exe /c net stop SQLSERVERAGENT
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C:\WINDOWS\system32\net.exe net stop SQLSERVERAGENT
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C:\WINDOWS\system32\cmd.exe C:\WINDOWS\system32\cmd.exe /c net stop MSSQLSERVER
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C:\WINDOWS\system32\net.exe net stop MSSQLSERVER
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C:\WINDOWS\system32\cmd.exe C:\WINDOWS\system32\cmd.exe /c net stop vds
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C:\WINDOWS\system32\net.exe net stop vds
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