Threat Database Trojans Trojan.Conficker.EA

Trojan.Conficker.EA

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 3
First Seen: October 27, 2022
Last Seen: December 26, 2025
OS(es) Affected: Windows

The detection of Trojan.Conficker.EA indicates a potential threat to your computer's security and integrity. This report aims to provide you with general guidance on understanding and addressing this issue. It is essential to approach this situation with caution and follow best practices to minimize potential damage.

What Is Trojan.Conficker.EA?

Trojan.Conficker.EA is identified as a Trojan-type threat, which means it is designed to deceive users into installing it on their systems. Once installed, it can cause a variety of problems, including data theft, system crashes, and the installation of additional malware. The name itself does not specify a known malware family, but its classification as a Trojan indicates its potential to cause harm.

How Trojan.Conficker.EA Operates

Trojan-type threats like Trojan.Conficker.EA typically operate by exploiting vulnerabilities in software or tricking users into installing them. They can spread through various means, including infected email attachments, compromised websites, or infected software downloads. Once installed, they can connect to command and control servers to receive instructions, download additional malware, or steal sensitive information. Understanding how these threats operate is crucial for taking effective measures to protect your system.

Symptoms of Infection

Systems infected with Trojan.Conficker.EA may exhibit a range of symptoms, including but not limited to, slow system performance, frequent crashes, unexpected pop-ups, and changes to browser settings. You might also notice that your antivirus software is disabled or that certain system files are missing or corrupted. It's essential to be vigilant and monitor your system's behavior regularly to identify any potential issues early on.

  • Unexplained changes in system settings or performance.
  • Appearance of unwanted programs or toolbars.
  • Difficulty in installing or running security software.
  • Frequent system freezes or crashes.

How to Remove Trojan.Conficker.EA

  1. Boot your computer in Safe Mode with Networking to limit the malware's ability to spread or cause further damage. This mode allows you to use the internet to download removal tools while minimizing the risk of the malware interfering with the removal process.
  2. Download and run a full scan with a reputable anti-malware tool, such as SpyHunter. Ensure the tool is updated with the latest definitions to increase the chances of detecting and removing the threat.
  3. Uninstall any suspicious programs that you do not recognize or that were installed around the time the threat was detected. Be cautious and only remove programs you are certain are not essential to your system's operation.
  4. Reset your web browsers (Chrome, Firefox, Edge) to their default settings. This can help remove any malicious extensions or settings changes made by the malware.
  5. Reboot your computer and run another full scan with your anti-malware tool to ensure that all components of the threat have been removed. This step is crucial as some malware may not be fully removable until after a system restart.

Conclusion

Dealing with a Trojan-type threat like Trojan.Conficker.EA requires a combination of caution, the right tools, and a systematic approach. By understanding the nature of the threat, recognizing the symptoms of infection, and following a step-by-step removal process, you can effectively protect your system and data. Remember, prevention is key; keeping your software up to date, using strong antivirus software, and being cautious with emails and downloads can significantly reduce the risk of infection. If you are unsure about any part of the removal process, consider seeking help from a professional to ensure your system is thoroughly cleaned and secured.

Analysis Report

General information

Family Name: Trojan.Conficker.EA
Signature status: No Signature

Known Samples

MD5: 908f7f11efb709acac525c03839dc9e5
SHA1: ff10adcc36e537f4550aacef335fcc1bb0f88c8c
SHA256: 57212E057DB0D45D94D08CD47DEC85F0D85A20A7F4D3824559C81A50999CC2A5
File Size: 166.43 KB, 166425 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 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
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  • 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
  • HighEntropy
  • x86

Block Information

Total Blocks: 347
Potentially Malicious Blocks: 311
Whitelisted Blocks: 36
Unknown Blocks: 0

Visual Map

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

Similar Families

  • Conficker.EA

Registry Modifications

Key::Value Data API Name
HKLM\software\microsoft\windows\currentversion\explorer\advanced\folder\hidden\showall::checkedvalue RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\explorer::shellstate $⠶b RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\explorer\advanced::hidden  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\explorer\advanced::showcompcolor  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\explorer\advanced::hidefileext RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\explorer\advanced::dontprettypath RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\explorer\advanced::showinfotip  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\explorer\advanced::hideicons RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\explorer\advanced::mapnetdrvbtn RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\explorer\advanced::webview  RegNtPreCreateKey
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HKCU\software\microsoft\windows\currentversion\explorer\advanced::filter RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\explorer\advanced::showsuperhidden RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\explorer\advanced::separateprocess RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\explorer\advanced::autocheckselect RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\explorer\advanced::iconsonly RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\explorer\advanced::showtypeoverlay  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\explorer\advanced::showstatusbar  RegNtPreCreateKey

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!NtQueryAttributesFile
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  • ntdll.dll!NtQueryDebugFilterState
  • ntdll.dll!NtQueryInformationProcess
  • 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
Process Manipulation Evasion
  • NtUnmapViewOfSection
  • ReadProcessMemory
Process Shell Execute
  • CreateProcess
Anti Debug
  • IsDebuggerPresent
  • NtQuerySystemInformation
User Data Access
  • GetUserObjectInformation

Shell Command Execution

C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\ff10adcc36e537f4550aacef335fcc1bb0f88c8c_0000166425.,LiQMAxHB

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