Threat Database Backdoors Backdoor.MSIL.Spy.AHB

Backdoor.MSIL.Spy.AHB

By CagedTech in Backdoors

Threat Scorecard

Popularity Rank: 23,013
Threat Level: 60 % (Medium)
Infected Computers: 2
First Seen: November 3, 2022
Last Seen: May 1, 2026
OS(es) Affected: Windows

The detection of Backdoor.MSIL.Spy.AHB indicates that your system has been compromised by a potentially malicious threat. This backdoor threat is designed to allow unauthorized access to your system, which can lead to a range of serious security issues. In this report, we will provide an overview of what Backdoor.MSIL.Spy.AHB is, how it operates, and the steps you can take to remove it from your system.

What Is Backdoor.MSIL.Spy.AHB?

Backdoor.MSIL.Spy.AHB is a type of backdoor threat that is designed to provide unauthorized access to a compromised system. Backdoor threats are a type of malware that can allow an attacker to remotely access and control a system, potentially leading to the theft of sensitive information, the installation of additional malware, or other malicious activities. The fact that Backdoor.MSIL.Spy.AHB has been detected on your system suggests that it has been compromised in some way, and that immediate action is needed to prevent further damage.

How Backdoor.MSIL.Spy.AHB Operates

Backdoor threats like Backdoor.MSIL.Spy.AHB typically operate by creating a covert channel of communication between the compromised system and a remote command and control server. This allows the attacker to send commands to the compromised system, which can then be executed without the knowledge or consent of the system's owner. Backdoor threats can be installed on a system through a variety of means, including exploits, phishing attacks, or the installation of malicious software.

Symptoms of Infection

The symptoms of a Backdoor.MSIL.Spy.AHB infection can vary, but may include unusual system behavior, slow system performance, or unexplained changes to system settings. In some cases, the presence of a backdoor threat may not be immediately apparent, which is why it is so important to have robust security measures in place to detect and prevent these types of threats. If you suspect that your system has been compromised by Backdoor.MSIL.Spy.AHB, it is essential that you take immediate action to remove the threat and prevent further damage.

How to Remove Backdoor.MSIL.Spy.AHB

  1. Boot your system into Safe Mode with Networking to prevent the malware from loading and to allow for the removal of the threat.
  2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect and remove any instances of Backdoor.MSIL.Spy.AHB.
  3. Uninstall any suspicious programs that may have been installed on your system, as these could be related to the Backdoor.MSIL.Spy.AHB infection.
  4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or settings that may have been installed by the malware.
  5. Reboot your system and perform a follow-up scan to ensure that the threat has been fully removed.

Conclusion

The detection of Backdoor.MSIL.Spy.AHB is a serious security issue that requires immediate attention. By following the steps outlined in this report, you can help to remove the threat from your system and prevent further damage. It is essential that you remain vigilant and take steps to protect your system from future threats, including keeping your operating system and software up to date, using robust security measures, and being cautious when installing new software or clicking on links from unknown sources.

Analysis Report

General information

Family Name: Backdoor.MSIL.Spy.AHB
Signature status: No Signature

Known Samples

MD5: 12e43a340fb6fe2ad8ebc0beb6d59ece
SHA1: 23796ff1a1e2cd793dc0c5fc9ed71b270f87b868
SHA256: 1963A12C52CAAB32FE683DB2E519B073992506ED0695308AD3CFFA924AFC15A0
File Size: 985.60 KB, 985600 bytes
MD5: 521201f7088dec4372bbfd2b47bf0220
SHA1: fe479674b855d51db0b094191770bd50524d7019
SHA256: F6C07B9C27FD247741E38FEB674389F9DAB09D45C69DCFCED884CC2667C820AA
File Size: 628.74 KB, 628736 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
  • Hospital
  • MDI
File Version 1.0.0.0
Internal Name
  • Hospital.exe
  • MDI.exe
Legal Copyright
  • Copyright © 2013
  • Copyright © 2016
Original Filename
  • Hospital.exe
  • MDI.exe
Product Name
  • Hospital
  • MDI
Product Version 1.0.0.0

File Traits

  • .NET
  • HighEntropy
  • x86

Block Information

Total Blocks: 1,278
Potentially Malicious Blocks: 10
Whitelisted Blocks: 998
Unknown Blocks: 270

Visual Map

? 0 ? ? x ? ? ? ? ? 0 0 ? ? ? ? ? ? ? ? ? ? ? ? 0 0 0 0 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 0 ? ? ? ? ? ? ? ? ? 0 0 0 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 0 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 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 0 0 0 0 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 ? x ? ? ? ? ? ? 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 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 0 0 ? 0 0 0 ? 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ? 0 0 0 ? 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ? 0 0 0 ? 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ? 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ? 0 0 0 ? 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ? 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ? 0 0 0 ? 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ? 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ? 0 ? 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ? ? 0 ? ? ? ? ? ? ? ? ? 0 ? 0 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 0 0 ? ? ? ? ? ? ? 0 ? 0 0 ? 0 ? ? 0 ? 0 ? ? ? ? ? ? 0 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 0 ? 0 0 0 0 0 0 0 0 0 0 ? 0 0 0 0 0 0 0 0 ? 0 0 0 0 0 0 0 0 ? 0 0 0 0 0 0 0 0 ? 0 0 0 0 0 0 0 0 ? 0 0 0 0 0 0 0 0 ? 0 0 0 0 0 0 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

Files Modified

File Attributes
\device\namedpipe\gmdasllogger Generic Write,Read Attributes
c:\windows\appcompat\programs\amcache.hve Read Data,Read Control,Write Data
c:\windows\appcompat\programs\amcache.hve Write Attributes

Registry Modifications

Key::Value Data API Name
HKLM\system\software\microsoft\tip\aggregateresults::data 鐄ȴ 鲱倩隞̃耀꧌… RegNtPreCreateKey

Windows API Usage

Category API
User Data Access
  • GetUserDefaultLocaleName
  • GetUserObjectInformation
Anti Debug
  • IsDebuggerPresent
  • NtQuerySystemInformation
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAdjustPrivilegesToken
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcConnectPort
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtAssociateWaitCompletionPacket
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
Show More
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateIoCompletion
  • ntdll.dll!NtCreateKey
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtCreateTimer2
  • ntdll.dll!NtCreateWaitCompletionPacket
  • ntdll.dll!NtCreateWorkerFactory
  • ntdll.dll!NtDelayExecution
  • ntdll.dll!NtDeleteValueKey
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtFsControlFile
  • ntdll.dll!NtLoadKeyEx
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtNotifyChangeKey
  • ntdll.dll!NtOpenDirectoryObject
  • ntdll.dll!NtOpenEvent
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenProcessTokenEx
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtOpenSymbolicLinkObject
  • ntdll.dll!NtOpenThread
  • ntdll.dll!NtOpenThreadToken
  • ntdll.dll!NtOpenThreadTokenEx
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDefaultLocale
  • ntdll.dll!NtQueryDirectoryFileEx
  • ntdll.dll!NtQueryInformationFile
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryLicenseValue
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQuerySecurityObject
  • ntdll.dll!NtQuerySymbolicLinkObject
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReadRequestData
  • ntdll.dll!NtReadVirtualMemory
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtTraceEvent
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWorkerFactoryWorkerReady
  • ntdll.dll!NtWriteFile
  • UNKNOWN
Process Manipulation Evasion
  • NtUnmapViewOfSection
  • ReadProcessMemory
Process Shell Execute
  • CreateProcess
Encryption Used
  • BCryptOpenAlgorithmProvider

Shell Command Execution

C:\Windows\Microsoft.NET\Framework64\v2.0.50727\\dw20.exe dw20.exe -x -s 852

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