Threat Database Trojans Trojan.MSIL.Downloader.Agent.AFNE

Trojan.MSIL.Downloader.Agent.AFNE

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 25
First Seen: August 2, 2023
Last Seen: October 23, 2025
OS(es) Affected: Windows

The detection of Trojan.MSIL.Downloader.Agent.AFNE indicates that your system has been compromised by a potentially malicious program. This type of threat is designed to download and install additional malware or unwanted software on your computer, which can lead to a range of problems, including data theft, system crashes, and slowed performance. It is essential to take immediate action to remove the threat and prevent further damage.

What Is Trojan.MSIL.Downloader.Agent.AFNE?

Trojan.MSIL.Downloader.Agent.AFNE is a type of Trojan horse malware that uses social engineering tactics or exploits vulnerabilities to infect a system. The name suggests that it is a downloader agent, which means it is designed to download and install other malicious programs or files on the infected computer. This type of malware can be particularly problematic, as it can lead to a range of secondary infections and make it challenging to remove all associated threats.

How Trojan.MSIL.Downloader.Agent.AFNE Operates

Trojan.MSIL.Downloader.Agent.AFNE operates by using various tactics to infect a system, including exploiting vulnerabilities in software or using social engineering tactics to trick users into installing the malware. Once installed, the malware can communicate with its command and control servers to download and install additional malware or unwanted software. This can include keyloggers, ransomware, or other types of malware designed to steal data or disrupt system operation.

Symptoms of Infection

Systems infected with Trojan.MSIL.Downloader.Agent.AFNE may exhibit a range of symptoms, including slowed performance, system crashes, or unusual network activity. Users may also notice that their system is behaving erratically, such as displaying unusual error messages or pop-ups. In some cases, the malware may attempt to hide its presence, making it challenging to detect without the use of antivirus software or other security tools.

  • Unexplained changes to system settings or configuration
  • Appearance of unfamiliar programs or icons
  • Increased network activity or unusual traffic patterns
  • System crashes or freezes
  • Slowed system performance or responsiveness

How to Remove Trojan.MSIL.Downloader.Agent.AFNE

  1. Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow for internet access to download removal tools.
  2. Use a reputable antivirus tool, such as SpyHunter, to perform a full scan of your system and remove any detected threats.
  3. Uninstall any suspicious programs or software that may be associated with the malware.
  4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
  5. Reboot your system and perform a follow-up scan to ensure that all associated threats have been removed.

Conclusion

Removing Trojan.MSIL.Downloader.Agent.AFNE requires a comprehensive approach that includes using reputable antivirus software, uninstalling suspicious programs, and resetting system settings. It is essential to take immediate action to prevent further damage and to protect your system from potential secondary infections. By following the steps outlined above and maintaining good security practices, such as keeping your operating system and software up to date, using strong passwords, and avoiding suspicious downloads, you can help to prevent future malware infections and keep your system secure.

Analysis Report

General information

Family Name: Trojan.MSIL.Downloader.Agent.AFNE
Signature status: No Signature

Known Samples

MD5: dc6929de6dd73064dabebc92a156091c
SHA1: 33dd4a67bc01ebe46463ae2f822d407e55a8d70d
SHA256: 71BF78949E29112448D947C1599CFEF3FF286AEAB571E13FBCE93D20E63205E8
File Size: 33.28 KB, 33280 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have debug information
  • File doesn't have exports table
  • File doesn't have security information
  • File is .NET application
  • File is 32-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is not packed
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
Show More
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

Windows PE Version Information

Name Value
Assembly Version 1.0.0.0
File Version 1.0.0.0
Internal Name Ayumo.exe
Original Filename Ayumo.exe
Product Version 1.0.0.0

File Traits

  • .NET
  • x86

Block Information

Total Blocks: 62
Potentially Malicious Blocks: 10
Whitelisted Blocks: 52
Unknown Blocks: 0

Visual Map

x x x 0 x 0 x x x x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Similar Families

  • MSIL.Krypt.ACAZA
  • MSIL.Krypt.ZCTF

Registry Modifications

Key::Value Data API Name
HKLM\software\wow6432node\microsoft\tracing::enableconsoletracing RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasapi32::enablefiletracing RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasapi32::enableautofiletracing RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasapi32::enableconsoletracing RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasapi32::filetracingmask ￿ RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasapi32::consoletracingmask ￿ RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasapi32::maxfilesize  RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasapi32::filedirectory %windir%\tracing RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasmancs::enablefiletracing RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasmancs::enableautofiletracing RegNtPreCreateKey
Show More
HKLM\software\wow6432node\microsoft\tracing\rasmancs::enableconsoletracing RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasmancs::filetracingmask ￿ RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasmancs::consoletracingmask ￿ RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasmancs::maxfilesize  RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasmancs::filedirectory %windir%\tracing RegNtPreCreateKey

Windows API Usage

Category API
User Data Access
  • GetComputerName
  • GetComputerNameEx
  • GetUserDefaultLocaleName
  • GetUserObjectInformation
Anti Debug
  • NtQuerySystemInformation
Other Suspicious
  • AdjustTokenPrivileges
Network Info Queried
  • GetAdaptersAddresses
  • GetNetworkParams
Encryption Used
  • BCryptOpenAlgorithmProvider
  • CryptAcquireContext
Network Winsock2
  • WSASend
  • WSASocket
  • WSAStartup
  • WSAttemptAutodialName
Network Winsock
  • bind
  • closesocket
  • freeaddrinfo
  • getaddrinfo
  • setsockopt
Network Winhttp
  • WinHttpOpen

Related Posts

Trending

Most Viewed

Loading...