Threat Database Backdoors Backdoor.Agent.DLA

Backdoor.Agent.DLA

By CagedTech in Backdoors

Threat Scorecard

Threat Level: 60 % (Medium)
Infected Computers: 3
First Seen: May 17, 2023
Last Seen: August 22, 2025
OS(es) Affected: Windows

The detection of Backdoor.Agent.DLA on your system indicates a potential security threat that requires immediate attention. This backdoor threat can compromise your system's security and allow unauthorized access to your data. It is essential to understand the nature of this threat and take prompt action to remove it and prevent future infections.

What Is Backdoor.Agent.DLA?

Backdoor.Agent.DLA is a type of backdoor threat that can allow unauthorized access to your system. Backdoors are malicious programs that can bypass normal security mechanisms, allowing attackers to remotely access and control your system. These threats can be particularly dangerous, as they can lead to further malware infections, data theft, and other malicious activities.

How Backdoor.Agent.DLA Operates

Backdoor.Agent.DLA, like other backdoor threats, operates by creating a covert communication channel between your system and a remote server controlled by the attacker. This channel can be used to transmit sensitive information, install additional malware, or execute commands on your system. The threat can also modify system settings, disable security software, and create new user accounts to maintain access to your system.

The exact mechanisms used by Backdoor.Agent.DLA to operate may vary, but its primary goal is to provide unauthorized access to your system and data. It is crucial to remove this threat as soon as possible to prevent further damage and protect your sensitive information.

Symptoms of Infection

Systems infected with Backdoor.Agent.DLA may exhibit various symptoms, including unusual network activity, slow system performance, and unexplained changes to system settings. You may also notice unfamiliar programs or files on your system, or receive unexpected messages or notifications. However, some backdoor threats can operate stealthily, making it challenging to detect them without proper security software.

  • Unusual network activity, such as unexpected outgoing connections
  • Slow system performance or frequent crashes
  • Unexplained changes to system settings or files
  • Appearance of unfamiliar programs or files
  • Unexpected messages or notifications

How to Remove Backdoor.Agent.DLA

  1. Boot your system in Safe Mode with Networking to prevent the threat from loading and to allow for internet access.
  2. Use a reputable malware removal tool, such as SpyHunter, to perform a full scan of your system and detect any malicious components.
  3. Uninstall any suspicious programs or applications that may be related to the threat.
  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 with your malware removal tool to ensure that the threat has been completely removed.

Conclusion

Removing Backdoor.Agent.DLA from your system requires careful attention to detail and a comprehensive approach to ensure that all malicious components are eliminated. 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 protect your system from future infections and maintain your online security.

Analysis Report

General information

Family Name: Backdoor.Agent.DLA
Signature status: No Signature

Known Samples

MD5: ed372eee4d7f41f5d02cf4501ae33e29
SHA1: 9b9aff4857b33e8563cb6e10632b028d5d7ca43f
SHA256: 33F623253A0C67E51ECC0F065B6316DE0940632051A0174F8887B5278C26A139
File Size: 268.29 KB, 268288 bytes

Windows Portable Executable Attributes

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

File Traits

  • dll
  • x86

Block Information

Total Blocks: 1,276
Potentially Malicious Blocks: 97
Whitelisted Blocks: 1,166
Unknown Blocks: 13

Visual Map

0 0 0 ? ? ? 0 x ? 0 x 0 x 0 0 0 0 0 x x ? 0 0 x x 0 0 x 0 0 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 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 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 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 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 0 0 0 0 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 x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x 0 0 x 0 0 0 0 0 0 0 0 0 0 0 x 0 0 0 0 0 0 0 x x x 0 x 0 0 0 0 x x x 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 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 x 0 x 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 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 x 0 x x 0 x 0 0 0 0 0 0 0 0 0 0 0 0 0 x 0 0 0 0 0 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 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 x 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 x 0 0 0 x 0 x 0 0 0 0 0 0 x x 0 x x x 0 0 0 0 0 0 0 0 0 x x x x 0 x x 0 x 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 x x 0 x 0 x 0 0 0 0 x x 0 x 0 x x x x 0 x x x x 0 0 0 0 0 x 0 0 0 0 0 0 0 x 0 x 0 0 0 0 0 0 x 0 x 0 0 0 0 0 0 0 0 0 0 0 x 0 x 0 0 0 0 0 0 0 0 0 0 0 0 x 0 0 0 0 x 0 0 x 0 0 x x x x x x 0 0 0 0 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 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 2 0 0 0 1 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 2 0 0 2 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 1 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 1 1 0 0 1 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 1 1 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 2 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 1 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 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 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 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 0 2 2 0 3 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x 0 x 0 0 0 0 0 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 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Similar Families

  • Agent.DLA

Files Modified

File Attributes
\device\namedpipe\pshost.133998074700170592.5656.defaultappdomain.powershell Generic Read,Write Data,Write Attributes,Write extended,Append data,LEFT 524288
c:\users\user\appdata\local\temp\__psscriptpolicytest_mi15bwre.xfn.psm1 Generic Write,Read Attributes
c:\users\user\appdata\local\temp\__psscriptpolicytest_suphqh40.ubh.ps1 Generic Write,Read Attributes

Registry Modifications

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 ﬙ຉǜ RegNtPreCreateKey

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtDuplicateObject
Show More
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDebugFilterState
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationFile
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWriteFile
  • ntdll.dll!NtWriteVirtualMemory
  • win32u.dll!NtGdiBitBlt
  • win32u.dll!NtGdiCreateBitmap
  • win32u.dll!NtGdiCreateCompatibleDC
  • win32u.dll!NtGdiCreateDIBitmapInternal
  • win32u.dll!NtGdiCreateSolidBrush
  • win32u.dll!NtGdiDeleteObjectApp
  • win32u.dll!NtGdiExtGetObjectW
  • win32u.dll!NtGdiGetDCforBitmap
  • win32u.dll!NtGdiGetDCObject
  • win32u.dll!NtGdiRestoreDC
  • win32u.dll!NtGdiSaveDC
  • win32u.dll!NtGdiSelectBitmap
  • win32u.dll!NtGdiSetDIBitsToDeviceInternal
  • win32u.dll!NtUserCallNoParam
  • win32u.dll!NtUserConsoleControl
  • win32u.dll!NtUserCreateEmptyCursorObject
  • win32u.dll!NtUserGetDC
  • win32u.dll!NtUserGetGUIThreadInfo
  • win32u.dll!NtUserGetKeyboardLayout
  • win32u.dll!NtUserGetProcessWindowStation
  • win32u.dll!NtUserGetThreadState
  • win32u.dll!NtUserReleaseDC
  • win32u.dll!NtUserSelectPalette
  • win32u.dll!NtUserSetCursorIconData
  • win32u.dll!NtUserSetProcessDpiAwarenessContext
Process Shell Execute
  • CreateProcess
Anti Debug
  • IsDebuggerPresent
  • NtQuerySystemInformation
User Data Access
  • GetUserDefaultLocaleName
  • GetUserName
  • GetUserNameEx
  • GetUserObjectInformation
Encryption Used
  • BCryptOpenAlgorithmProvider
Other Suspicious
  • AdjustTokenPrivileges

Shell Command Execution

C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\9b9aff4857b33e8563cb6e10632b028d5d7ca43f_0000268288.,LiQMAxHB

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