Threat Database Trojans Trojan.Downloader.Agent.NBE

Trojan.Downloader.Agent.NBE

By CagedTech in Trojans

Threat Scorecard

Threat Level: 60 % (Medium)
Infected Computers: 0
First Seen: October 2, 2024
OS(es) Affected: Windows

The detection of Trojan.Downloader.Agent.NBE indicates that your system has been compromised by a potentially malicious program. This type of threat is designed to download and install additional malware onto an infected computer, which can lead to a range of problems, including data theft, system crashes, and unauthorized access to sensitive information. It is essential to take immediate action to remove the threat and prevent further damage.

What Is Trojan.Downloader.Agent.NBE?

Trojan.Downloader.Agent.NBE is a type of Trojan horse malware that is designed to download and install additional malware onto an infected computer. The name "Trojan" refers to the fact that this type of malware disguises itself as a legitimate program, allowing it to evade detection and gain access to a system. The "Downloader" part of the name indicates that this malware is capable of downloading and installing additional malware, which can lead to a range of problems.

How Trojan.Downloader.Agent.NBE Operates

Trojan.Downloader.Agent.NBE operates by exploiting vulnerabilities in a system or application, allowing it to gain access to a computer without the user's knowledge or consent. Once inside, the malware can download and install additional malware, which can include keyloggers, ransomware, and other types of malicious software. This can lead to a range of problems, including data theft, system crashes, and unauthorized access to sensitive information.

Symptoms of Infection

The symptoms of a Trojan.Downloader.Agent.NBE infection can vary, but common indicators include slow system performance, frequent crashes, and unusual network activity. You may also notice that your browser is being redirected to unfamiliar websites, or that you are receiving pop-up ads and other types of unwanted content. In some cases, the malware may also attempt to steal sensitive information, such as login credentials or financial data.

  • Slow system performance
  • Frequent crashes
  • Unusual network activity
  • Browser redirects
  • Pop-up ads and other unwanted content

How to Remove Trojan.Downloader.Agent.NBE

  1. Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow you to download and install removal tools.
  2. Download and install a reputable anti-malware tool, such as SpyHunter, and run a full scan to detect and remove the malware.
  3. Uninstall any suspicious programs that may be related to the malware, and be cautious when installing new software to avoid reinfection.
  4. Reset your browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
  5. Reboot your computer and run another scan to ensure that the malware has been completely removed.

Conclusion

Removing Trojan.Downloader.Agent.NBE requires a combination of technical expertise and caution. By following the steps outlined above, you can help to ensure that your system is free from malware and that your sensitive information is protected. It is also essential to take steps to prevent reinfection, such as installing anti-malware software, avoiding suspicious downloads, and being cautious when clicking on links or opening email attachments. By taking a proactive approach to malware removal and prevention, you can help to keep your system and data safe from harm.

Analysis Report

General information

Family Name: Trojan.Downloader.Agent.NBE
Signature status: No Signature

Known Samples

MD5: 7aaea4358a9e32132294645694afd192
SHA1: 7806793076aafa8c89fe14072331e177b474857a
SHA256: E5D088472D2338780B43D47B4EB38BF5622EB271D040DF0BCFF28AD6975B83C0
File Size: 3.71 MB, 3710976 bytes
MD5: 0d9b756f352c362092693c02fe6fedb5
SHA1: d8552b9e9970ac4562ffd18dc2c88e56de55c602
SHA256: 0A6B681F68E55EAC2CF2E7E0492408AF16EBA6969AAD4459BAF9607770D2FABA
File Size: 2.06 MB, 2056625 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 exports table
  • File has TLS information
  • File is 64-bit executable
  • File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
  • File is either console or GUI application
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  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is Native application (NOT .NET application)
  • 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

  • big overlay
  • dll
  • No Version Info
  • ntdll
  • x64

Block Information

Total Blocks: 6,260
Potentially Malicious Blocks: 968
Whitelisted Blocks: 5,162
Unknown Blocks: 130

Visual Map

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

Similar Families

  • Downloader.Agent.NBE

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateTimer2
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtFreeVirtualMemory
Show More
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenProcessTokenEx
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtOpenThreadTokenEx
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDebugFilterState
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetTimerEx
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWorkerFactoryWorkerReady
  • 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!NtGdiGetDeviceCaps
  • win32u.dll!NtGdiRestoreDC
  • win32u.dll!NtGdiSaveDC
  • win32u.dll!NtGdiSelectBitmap
  • win32u.dll!NtGdiSetDIBitsToDeviceInternal
  • win32u.dll!NtUserBuildHwndList
  • win32u.dll!NtUserCallTwoParam
  • win32u.dll!NtUserCreateEmptyCursorObject
  • win32u.dll!NtUserCreateWindowEx
  • win32u.dll!NtUserDestroyWindow
  • win32u.dll!NtUserFindExistingCursorIcon
  • win32u.dll!NtUserGetAncestor
  • win32u.dll!NtUserGetClassInfoEx
  • win32u.dll!NtUserGetClassName
  • win32u.dll!NtUserGetDC
  • win32u.dll!NtUserGetGUIThreadInfo
  • win32u.dll!NtUserGetIconInfo
  • win32u.dll!NtUserGetIconSize
  • win32u.dll!NtUserGetImeInfoEx
  • win32u.dll!NtUserGetKeyboardLayout
  • win32u.dll!NtUserGetObjectInformation
  • win32u.dll!NtUserGetProcessWindowStation
  • win32u.dll!NtUserGetProp
  • win32u.dll!NtUserGetThreadDesktop
  • win32u.dll!NtUserGetThreadState
  • win32u.dll!NtUserGetWindowCompositionAttribute
  • win32u.dll!NtUserIsNonClientDpiScalingEnabled
  • win32u.dll!NtUserIsTopLevelWindow
  • win32u.dll!NtUserMessageCall
  • win32u.dll!NtUserRegisterClassExWOW
  • win32u.dll!NtUserRegisterWindowMessage
  • win32u.dll!NtUserReleaseDC
  • win32u.dll!NtUserRemoveProp
  • win32u.dll!NtUserSelectPalette
  • win32u.dll!NtUserSetCursorIconData
  • win32u.dll!NtUserSetWindowFNID
  • win32u.dll!NtUserSetWindowLongPtr
  • win32u.dll!NtUserSetWindowPos
  • win32u.dll!NtUserUpdateInputContext

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