Threat Database Trojans Trojan.MSIL.Spy.Agent.S

Trojan.MSIL.Spy.Agent.S

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 14,371
Threat Level: 80 % (High)
Infected Computers: 35
First Seen: May 12, 2022
Last Seen: June 22, 2026
OS(es) Affected: Windows

The detection of Trojan.MSIL.Spy.Agent.S on your system indicates a potential security threat. This detection name suggests that the malware is a type of Trojan, which is a broad category of malicious software that can perform a variety of functions, including spying on the user. In this case, the "Spy" component of the name implies that the malware may be designed to gather sensitive information from the infected system.

What Is Trojan.MSIL.Spy.Agent.S?

Trojan.MSIL.Spy.Agent.S is a type of malware that can infect a system and potentially cause harm. The ".MSIL" part of the name refers to the Microsoft Intermediate Language, which is a programming language used by the .NET Framework. This suggests that the malware is written in a .NET language and is designed to run on Windows systems. The "Spy.Agent.S" part of the name implies that the malware is a type of spyware, which is designed to gather sensitive information from the infected system.

How Trojan.MSIL.Spy.Agent.S Operates

Malware like Trojan.MSIL.Spy.Agent.S can operate in a variety of ways, depending on its intended purpose. Some common functions of spyware include gathering sensitive information such as login credentials, credit card numbers, and personal data. This information can be transmitted to a remote server, where it can be used for malicious purposes. Additionally, spyware can also be used to monitor the user's activity, such as tracking their browsing history and keystrokes.

In general, malware can infect a system through a variety of means, including exploited vulnerabilities, phishing attacks, and drive-by downloads. Once infected, the malware can spread to other parts of the system, potentially causing further harm.

Symptoms of Infection

The symptoms of a Trojan.MSIL.Spy.Agent.S infection can vary, but some common signs include slow system performance, unexpected pop-ups and advertisements, and unfamiliar programs or icons on the system. Additionally, the user may notice that their personal data is being transmitted to unknown servers, or that their login credentials are being stolen. In some cases, the malware may also cause the system to crash or become unstable.

  • Slow system performance
  • Unexpected pop-ups and advertisements
  • Unfamiliar programs or icons on the system
  • Personal data being transmitted to unknown servers
  • Login credentials being stolen
  • System crashes or instability

How to Remove Trojan.MSIL.Spy.Agent.S

  1. Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow you to download and install removal tools.
  2. Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove the malware.
  3. Uninstall any suspicious programs that may be related to 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 another full scan to ensure that the malware has been completely removed.

Conclusion

The detection of Trojan.MSIL.Spy.Agent.S on your system is a serious security threat that requires immediate attention. By understanding how the malware operates and taking steps to remove it, you can help protect your system and personal data from further harm. It is essential to be proactive in maintaining your system's security, including keeping your operating system and software up to date, using strong antivirus software, and being cautious when clicking on links or downloading attachments from unknown sources.

Analysis Report

General information

Family Name: Trojan.MSIL.Spy.Agent.S
Signature status: No Signature

Known Samples

MD5: 80e5f008986bba3defd75a79e6c0d61a
SHA1: 56e15c0d34d08b8983493bddf863f6b9f9209e60
SHA256: 906A1A37878D40918451BB254A2A17B69F0CF741504A1AB3D2B8E2701D6E2B1A
File Size: 49.66 KB, 49664 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • 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)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

Windows PE Version Information

Name Value
Assembly Version 1.0.0.0
File Description ProgramUsage
File Version 1.0.0.0
Internal Name KatalonNativeRecorder.exe
Legal Copyright Copyright © 2016
Original Filename KatalonNativeRecorder.exe
Product Name ProgramUsage
Product Version 1.0.0.0

File Traits

  • .NET
  • ntdll
  • x86

Block Information

Total Blocks: 122
Potentially Malicious Blocks: 4
Whitelisted Blocks: 58
Unknown Blocks: 60

Visual Map

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

Windows API Usage

Category API
User Data Access
  • GetUserDefaultLocaleName
  • GetUserObjectInformation
Anti Debug
  • IsDebuggerPresent
  • NtQuerySystemInformation
Other Suspicious
  • AdjustTokenPrivileges
  • SetWindowsHookEx
Network Winsock2
  • WSAConnect
  • WSARecv
  • WSASocket
  • WSAStartup
Network Winsock
  • closesocket
  • setsockopt
Encryption Used
  • BCryptOpenAlgorithmProvider

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