Trojan.MSIL.Downloader.IJCJ

The detection of Trojan.MSIL.Downloader.IJCJ on your system indicates a potential security threat that requires immediate attention. This report aims to provide you with a comprehensive understanding of the threat, its operation, symptoms, and most importantly, steps to remove it from your computer. It's crucial to address this issue promptly to prevent any further damage or data compromise.

What Is Trojan.MSIL.Downloader.IJCJ?

Trojan.MSIL.Downloader.IJCJ is identified as a Trojan-type threat. Trojans are malicious programs that can allow unauthorized access to a user's system, often disguising themselves as legitimate software. The name suggests it may be involved in downloading additional malicious components, potentially leading to more severe infections. Understanding the nature of this threat is key to taking the right steps in removing it and securing your system.

How Trojan.MSIL.Downloader.IJCJ Operates

Trojan.MSIL.Downloader.IJCJ, like other Trojans, may operate by exploiting vulnerabilities in software or by deceiving users into installing it, often bundled with other programs. Once installed, it can download and install additional malware, steal sensitive information, or provide backdoor access to hackers. The specifics of its operation can vary, but the end goal is typically to compromise the security and integrity of the infected system for malicious purposes.

Symptoms of Infection

Symptoms of a Trojan infection can be subtle and may not always be immediately apparent. Common signs include unusual system behavior, such as unexpected pop-ups, slow performance, or programs starting automatically. Additionally, you might notice changes in your browser settings or the presence of unfamiliar programs. Since Trojans can act as backdoors for other malware, any suspicious activity should be investigated promptly.

How to Remove Trojan.MSIL.Downloader.IJCJ

1. Enter Safe Mode with Networking: Restart your computer and enter Safe Mode with Networking. This will limit the malware's ability to interfere with the removal process while still allowing you to download necessary tools.
2. Perform a Full Scan: Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. Ensure your antivirus software is updated before scanning to detect the latest threats.
3. Uninstall Suspicious Programs: Go through your installed programs and uninstall any that you don't recognize or that were installed around the time the malware was detected.
4. Reset Your Browser: If your browser has been affected, reset it to its default settings. This can be done in the settings menu of Chrome, Firefox, Edge, or any other browser you use.
5. Reboot and Re-scan: After completing the above steps, reboot your computer and perform another scan with your anti-malware tool to ensure all components of the Trojan have been removed.

Conclusion

Removing Trojan.MSIL.Downloader.IJCJ requires careful and methodical steps to ensure all components are eliminated from your system. By following the guidance provided, you should be able to remove the threat and secure your computer. Remember, prevention is key; keeping your software up to date, using strong antivirus protection, and being cautious with emails and downloads can significantly reduce the risk of future infections. If you're unsure about any part of the removal process, consider consulting with a professional to ensure your system is thoroughly cleaned and protected.

Analysis Report

General information

Family Name:	Trojan.MSIL.Downloader.IJCJ
Signature status:	No Signature

Known Samples

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Known Samples

This section lists other file samples believed to be associated with this family.

MD5: e89f9fb82416c2fdf47115f28e6c7f75 SHA1: d3c089cda860ddd25c617b8b58d1d1b3c6d8f55a SHA256: 887C7E4CFC042677D081095642C35B28E961C3A2B79E06C2E84199618720E0E3 File Size: 530.94 KB, 530944 bytes

Windows Portable Executable Attributes

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Windows Portable Executable Attributes

This section lists file attributes found within family samples. These attributes are extracted from the files’ Windows PE (Portable Executable) specification and various system flags. Portable Executable Attributes give malware researchers insight into a file’s functionality, executable details, platform and runtime environment.

• File doesn't have "Rich" header
• File doesn't have exports table
• File doesn't have security information
• File is 64-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
• IMAGE_FILE_DLL is not set inside PE header (Executable)
• IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Icons

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File Icons

This section displays icon resources found within family samples. Malware often replicates icons commonly associated with legitimate software to mislead users into believing the malware is safe.

Windows PE Version Information

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Windows PE Version Information

This section displays values and attributes that have been set in the Windows file version information data structure for samples within this family. To mislead users, malware actors often add fake version information mimicking legitimate software.

Name	Value
Company Name	Microsoft Corporation
File Description	Win32 Cabinet Self-Extractor
File Version	11.00.17763.1 (WinBuild.160101.0800)
Internal Name	Wextract
Legal Copyright	© Microsoft Corporation. All rights reserved.
Original Filename	WEXTRACT.EXE .MUI
Product Name	Internet Explorer
Product Version	11.00.17763.1

File Traits

• .NET
• big overlay
• x86

Block Information

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Block Information

During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.

Total Blocks:	93
Potentially Malicious Blocks:	33
Whitelisted Blocks:	60
Unknown Blocks:	0

Visual Map

0 0 0 0 0 0 0 x 0 x x 0 x 0 0 x 0 x 0 0 x x 0 0 x 0 x 0 x 0 x 0 0 0 x 0 x x x x x x 0 x 0 x x 0 x 0 0 0 x x x x x x x 0 0 0 0 0 0 0 0 x 0 x 0 0 1 x 0 2 0 0 0 0 0 0 0 0 1 1 0 0 2 0 0 0 1

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

Similar Families

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Similar Families

This section lists other families that share similarities with this family, based on EnigmaSoft’s analysis. Many malware families are created from the same malware toolkits and use the same packing and encryption techniques but uniquely extend functionality. Similar families may also share source code, attributes, icons, subcomponents, compromised and/or invalid digital signatures, and network characteristics. Researchers leverage these similarities to rapidly and effectively triage file samples and extend malware detection rules.

• Coinminer.QGA

Files Modified

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Files Modified

This section lists files that were created, modified, moved and/or deleted by samples in this family. File system activity can provide valuable insight into how malware functions on the operating system.

File	Attributes
c:\users\user\appdata\local\temp\ixp000.tmp\setup_~1.exe	Generic Write,Read Attributes
c:\users\user\appdata\local\temp\ixp000.tmp\setup_~1.exe	Synchronize,Write Attributes
c:\users\user\appdata\local\temp\ixp000.tmp\tmp4351$.tmp	Generic Write,Read Attributes,Delete

Registry Modifications

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Registry Modifications

This section lists registry keys and values that were created, modified and/or deleted by samples in this family. Windows Registry activity can provide valuable insight into malware functionality. Additionally, malware often creates registry values to allow itself to automatically start and indefinitely persist after an initial infection has compromised the system.

Key::Value	Data	API Name
HKLM\software\microsoft\windows\currentversion\runonce::wextract_cleanup0	rundll32.exe C:\WINDOWS\system32\advpack.dll,DelNodeRunDLL32 "C:\Users\Eehldwgf\AppData\Local\Temp\IXP000.TMP\"	RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing::enableconsoletracing		RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasapi32::enablefiletracing		RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasapi32::enableautofiletracing		RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasapi32::enableconsoletracing		RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasapi32::filetracingmask	￿	RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasapi32::consoletracingmask	￿	RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasapi32::maxfilesize		RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasapi32::filedirectory	%windir%\tracing	RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasmancs::enablefiletracing		RegNtPreCreateKey

Show More

HKLM\software\wow6432node\microsoft\tracing\rasmancs::enableautofiletracing		RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasmancs::enableconsoletracing		RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasmancs::filetracingmask	￿	RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasmancs::consoletracingmask	￿	RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasmancs::maxfilesize		RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\tracing\rasmancs::filedirectory	%windir%\tracing	RegNtPreCreateKey

Windows API Usage

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Windows API Usage

This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.

Category	API
Syscall Use	ntdll.dll!NtAlpcSendWaitReceivePort ntdll.dll!NtClose ntdll.dll!NtCreateKey ntdll.dll!NtCreateSection ntdll.dll!NtFreeVirtualMemory ntdll.dll!NtMapViewOfSection ntdll.dll!NtOpenFile ntdll.dll!NtOpenKey ntdll.dll!NtOpenKeyEx ntdll.dll!NtOpenSection Show More ntdll.dll!NtPowerInformation ntdll.dll!NtProtectVirtualMemory ntdll.dll!NtQueryAttributesFile ntdll.dll!NtQueryInformationProcess ntdll.dll!NtQueryInformationToken ntdll.dll!NtQueryKey ntdll.dll!NtQueryPerformanceCounter ntdll.dll!NtQueryValueKey ntdll.dll!NtQueryVirtualMemory ntdll.dll!NtReadRequestData ntdll.dll!NtReleaseWorkerFactoryWorker ntdll.dll!NtSetEvent ntdll.dll!NtSetInformationProcess ntdll.dll!NtSetInformationVirtualMemory ntdll.dll!NtSetInformationWorkerFactory ntdll.dll!NtTestAlert ntdll.dll!NtWaitForAlertByThreadId ntdll.dll!NtWaitForWorkViaWorkerFactory ntdll.dll!NtWriteFile UNKNOWN
Process Shell Execute	CreateProcess
User Data Access	GetComputerName GetUserDefaultLocaleName GetUserObjectInformation
Anti Debug	NtQuerySystemInformation
Other Suspicious	AdjustTokenPrivileges
Network Winsock2	WSAConnect WSASocket WSAStartup WSAttemptAutodialName
Network Winsock	closesocket freeaddrinfo getaddrinfo recv send setsockopt
Network Winhttp	WinHttpOpen
Network Info Queried	GetAdaptersAddresses GetNetworkParams

Shell Command Execution

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Shell Command Execution

This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.

C:\Users\Eehldwgf\AppData\Local\Temp\IXP000.TMP\SETUP_~1.EXE