Threat Database Backdoors Backdoor.Spy.Agent.LLA

Backdoor.Spy.Agent.LLA

By CagedTech in Backdoors

Threat Scorecard

Popularity Rank: 11,056
Threat Level: 60 % (Medium)
Infected Computers: 9
First Seen: January 14, 2026
Last Seen: June 18, 2026
OS(es) Affected: Windows

The detection of Backdoor.Spy.Agent.LLA on your system indicates a potential security threat that requires immediate attention. This detection name suggests a backdoor threat, which is a type of malware that allows unauthorized access to your computer. In this report, we will provide an overview of what Backdoor.Spy.Agent.LLA is, how it operates, its symptoms, and most importantly, how to remove it from your system.

What Is Backdoor.Spy.Agent.LLA?

A backdoor threat like Backdoor.Spy.Agent.LLA is designed to bypass normal security mechanisms and allow unauthorized users to access and control your computer remotely. This type of malware can be particularly dangerous because it can lead to a range of malicious activities, including data theft, installation of additional malware, and exploitation of your computer's resources for malicious purposes. The term "backdoor" refers to the malware's ability to create a secret entrance into your system, allowing hackers to access your computer without being detected by traditional security software.

How Backdoor.Spy.Agent.LLA Operates

Backdoor threats typically operate by establishing a communication channel with a command and control (C2) server operated by the attackers. Through this channel, the attackers can send commands to the infected computer, instructing it to perform various malicious actions. The malware may also be designed to evade detection by traditional antivirus software, making it difficult to identify and remove without specialized tools and expertise. The specific mechanisms used by Backdoor.Spy.Agent.LLA to operate and communicate with its C2 server are not detailed in this report, but its detection is a clear indication that your system's security has been compromised.

Symptoms of Infection

Identifying a backdoor infection can be challenging because these threats are designed to remain stealthy. However, there are several symptoms that may indicate your computer is infected with Backdoor.Spy.Agent.LLA or a similar malware. These include unusual network activity, slow computer performance, unexpected changes to your system settings, and the presence of unfamiliar programs or files. If you have noticed any of these symptoms, it is crucial to take immediate action to secure your system and protect your data.

How to Remove Backdoor.Spy.Agent.LLA

  1. Enter Safe Mode with Networking to prevent the malware from spreading or communicating with its C2 server. This mode allows you to use the internet to download removal tools while limiting the malware's ability to interfere with the removal process.
  2. Download and run a full scan with a reputable anti-malware tool, such as SpyHunter. These tools are designed to detect and remove malware, including backdoors like Backdoor.Spy.Agent.LLA, that traditional antivirus software might miss.
  3. Uninstall any suspicious programs that you do not recognize or that were installed without your consent. Be cautious and only remove programs that you are certain are malicious or unnecessary.
  4. Reset your web browsers (Chrome, Firefox, Edge, etc.) to their default settings. This can help remove any malicious extensions or settings that the malware may have installed.
  5. Reboot your computer and perform another full scan with your anti-malware tool to ensure that all components of the malware have been removed. This step is crucial to verify that your system is clean and secure.

Conclusion

The detection and removal of Backdoor.Spy.Agent.LLA require careful attention to ensure that your system is thoroughly cleaned and protected against future infections. By following the steps outlined in this report, you can significantly reduce the risk of further compromise and protect your personal data. Remember, maintaining up-to-date antivirus software, being cautious with email attachments and links, and regularly scanning your system for malware are essential practices for preventing infections like Backdoor.Spy.Agent.LLA. Stay vigilant and proactive in securing your digital environment to minimize the impact of malware threats.

Analysis Report

General information

Family Name: Backdoor.Spy.Agent.LLA
Signature status: No Signature

Known Samples

MD5: 34d4850319ecdb97949c644ee78c064e
SHA1: 09f585e8a3a7d3388fc28bbe6bfc61bdd0becac2
SHA256: BA6E4EB55DF9BD320784FF96AA0A1DA8FA1C8DB415E92919AF3ED52F29E19913
File Size: 2.00 MB, 1999360 bytes
MD5: 3990dc59c559f9d2f502344c56fd09ae
SHA1: 384621259043673cb1505dd6e4d3a9577a5ff1df
SHA256: 081EEB3BD95DB0E11E4D3E533DC67C1F4E85A6342550D2666506E999C740EF8A
File Size: 2.00 MB, 1999360 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 resources
  • File doesn't have security information
  • File has TLS information
  • File is 64-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is Native application (NOT .NET application)
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  • 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)

File Traits

  • No Version Info
  • ntdll
  • x64

Block Information

Total Blocks: 5,913
Potentially Malicious Blocks: 89
Whitelisted Blocks: 5,824
Unknown Blocks: 0

Visual Map

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... Data truncated
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Similar Families

  • Agent.KIV
  • Spy.Agent.LLA

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAssociateWaitCompletionPacket
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateIoCompletion
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateWaitCompletionPacket
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
Show More
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenProcess
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtReadRequestData
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRemoveIoCompletion
  • ntdll.dll!NtRemoveIoCompletionEx
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSetIoCompletion
  • ntdll.dll!NtTerminateProcess
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWriteFile
  • UNKNOWN
Network Winsock2
  • WSASend
  • WSASocket
  • WSAStartup
Network Winsock
  • bind
  • closesocket
  • connect
  • freeaddrinfo
  • getaddrinfo
  • setsockopt

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