Threat Database Trojans Trojan.KillMBR.AH

Trojan.KillMBR.AH

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 10,691
Threat Level: 80 % (High)
Infected Computers: 40
First Seen: March 1, 2024
Last Seen: August 3, 2026
OS(es) Affected: Windows

The detection of Trojan.KillMBR.AH on your system indicates a potential security threat that requires immediate attention. This Trojan-type threat can cause significant damage to your computer and compromise your personal data. It is essential to understand the nature of this threat and take prompt action to remove it from your system.

What Is Trojan.KillMBR.AH?

Trojan.KillMBR.AH is a type of malware that can infiltrate your system without your knowledge or consent. The name "Trojan" refers to the method of infection, which often involves disguising the malware as a legitimate program or file. The ".KillMBR.AH" suffix suggests that this malware may be designed to target the Master Boot Record (MBR) of your system, which is a critical component of your computer's boot process.

How Trojan.KillMBR.AH Operates

Once installed, Trojan.KillMBR.AH can operate in various ways, depending on its intended purpose. It may attempt to steal sensitive information, such as login credentials or financial data, or use your system as a botnet to conduct malicious activities. The malware may also try to disable security software or interfere with system updates to maintain its presence on your computer. In some cases, Trojan.KillMBR.AH may be used as a backdoor to install additional malware or provide unauthorized access to your system.

Symptoms of Infection

The symptoms of a Trojan.KillMBR.AH infection can vary, but common signs include slow system performance, frequent crashes, and unusual network activity. You may also notice that your security software is disabled or that your system is behaving erratically. In some cases, you may receive alerts or warnings from your security software indicating that a malicious program is attempting to access your system.

  • Unexplained changes to your system settings or configuration
  • Appearance of unfamiliar programs or icons on your desktop
  • Increased network activity or unusual data transfers
  • System crashes or freezes, especially during boot-up or shutdown

How to Remove Trojan.KillMBR.AH

  1. Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow for internet access.
  2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect any malicious files or programs.
  3. Uninstall any suspicious programs or software that may be related to the Trojan.KillMBR.AH infection.
  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

Removing Trojan.KillMBR.AH from your system requires careful attention to detail and a thorough understanding of the malware's behavior. By following the steps outlined above and using reputable security software, you can help protect your system and prevent further damage. It is essential to remain vigilant and take proactive measures to prevent future infections, such as keeping your operating system and software up to date, using strong antivirus protection, and avoiding suspicious downloads or email attachments.

Analysis Report

General information

Family Name: Trojan.KillMBR.AH
Signature status: No Signature

Known Samples

MD5: 07cce378add21a9a5eb7a94e48d1c68c
SHA1: 3b3129f74a7da0e1fabe34fc7f791101285fd6a7
SHA256: FAC5999AF4484C88F0A4F994453DE3EB2AE6494D4598EB47A9C74884CFE94C64
File Size: 80.90 KB, 80896 bytes
MD5: 8f598556272941ae9f49485befc8c2d8
SHA1: ce0f31d8785d727ec42098eb6fe3c0341f36dba7
SHA256: D5A563F0CA77572E015B9A0D2C1582F68B0DC17D1DAC46FE7C07D43C8553C36D
File Size: 36.86 KB, 36864 bytes
MD5: f48256ae6a7cf63027544c88a32f8796
SHA1: 00570b931eff5f3c4dadbe37958598e534fd8548
SHA256: 09C17170164ED4DE8CE3A97B7823C7397A210F13706CC96913A4D9425B026F82
File Size: 24.58 KB, 24576 bytes
MD5: 4307a42d7637f8cf0e1150851be6dc11
SHA1: a552c728acd374b5f411de4deeb0f6bcb5275d90
SHA256: 9DD0529F6641C44FC53EA5B9EB822729CD98515D24B11B1F446EEF64A0B15870
File Size: 80.90 KB, 80896 bytes
MD5: 595e3fbbe8d79b39ccbbab5b75d5d33c
SHA1: 0d432637790fc425f9da9afe548bff9fcb2fd067
SHA256: C964D8CE5898A28569AD95AF980E9138D6462AF1658142DB467CC5CDCE35E754
File Size: 168.45 KB, 168448 bytes
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MD5: f811b9028b52dc047e76652046af66ad
SHA1: 70c9a9e641c5d25b14ad5825c926239fb4e2da0c
SHA256: 332D14C6BE9FCE8C6357B3DD6DFF9175D3BE03E77BA6E858BD8246DEA1508D83
File Size: 107.01 KB, 107008 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 relocations information
  • File doesn't have resources
  • File doesn't have security information
  • File has been packed
  • File has exports table
  • File is 32-bit executable
  • File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
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  • 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
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Icons

Windows PE Version Information

Name Value
Company Name Syneton BVBA
Email info@syneton.be
File Description Upgrade tool
File Version 1.0.0.0
Internal Name Upgrade Application
Legal Copyright Copyright 2008-2009
Original Filename UpgradeApplication.pb
Product Name Syneton Upgrade
Product Version 1.0.0.0
Website www.syneton.be

File Traits

  • 2+ executable sections
  • dll
  • No Version Info
  • packed
  • x86

Block Information

Total Blocks: 194
Potentially Malicious Blocks: 35
Whitelisted Blocks: 154
Unknown Blocks: 5

Visual Map

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

Similar Families

  • Autorun.SA
  • GameHack.L

Files Modified

File Attributes
c:\users\user\appdata\local\microsoft\windows\usrclass.dat{dba6b5ef-640a-11ed-9bcb-f677369d361c}.txr.1.regtrans-ms Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\users\user\appdata\local\microsoft\windows\usrclass.dat{dba6b5ef-640a-11ed-9bcb-f677369d361c}.txr.2.regtrans-ms Generic Read,Write Data,Write Attributes,Write extended,Append data

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtProtectVirtualMemory
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  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDebugFilterState
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationFile
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWriteFile
  • ntdll.dll!NtWriteVirtualMemory
  • win32u.dll!NtUserGetKeyboardLayout
  • win32u.dll!NtUserGetThreadState
Process Shell Execute
  • CreateProcess
Anti Debug
  • NtQuerySystemInformation
Process Manipulation Evasion
  • NtUnmapViewOfSection
Network Winsock2
  • WSAStartup
User Data Access
  • GetUserObjectInformation
Keyboard Access
  • GetKeyState

Shell Command Execution

C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\3b3129f74a7da0e1fabe34fc7f791101285fd6a7_0000080896.,LiQMAxHB
C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\ce0f31d8785d727ec42098eb6fe3c0341f36dba7_0000036864.,LiQMAxHB
C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\00570b931eff5f3c4dadbe37958598e534fd8548_0000024576.,LiQMAxHB
C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\a552c728acd374b5f411de4deeb0f6bcb5275d90_0000080896.,LiQMAxHB