PUP.MSIL.DownloadSponsor.A

The detection of PUP.MSIL.DownloadSponsor.A on your system indicates the presence of a potentially unwanted program (PUP) that may be causing issues with your computer's performance and security. It is essential to understand the nature of this threat and take immediate action to remove it and prevent further damage.

What Is PUP.MSIL.DownloadSponsor.A?

PUP.MSIL.DownloadSponsor.A is a type of malware that is categorized as a potentially unwanted program. This means that it is not necessarily a virus or a Trojan, but rather a program that may be installed on your system without your knowledge or consent, often through bundled software or deceptive download links. PUPs like PUP.MSIL.DownloadSponsor.A can cause a range of problems, including slowing down your computer, displaying unwanted ads, and potentially leading to more severe security issues.

How PUP.MSIL.DownloadSponsor.A Operates

Once installed, PUP.MSIL.DownloadSponsor.A may operate in the background, collecting data about your browsing habits, searching for vulnerabilities in your system, or downloading additional malicious components. It may also attempt to connect to remote servers to receive updates or send stolen data. The exact behavior of PUP.MSIL.DownloadSponsor.A can vary, but its primary goal is often to generate revenue for its creators through advertising, affiliate marketing, or other malicious means.

Symptoms of Infection

If your system is infected with PUP.MSIL.DownloadSponsor.A, you may notice a range of symptoms, including slow system performance, unwanted pop-ups or ads, unfamiliar programs or icons on your desktop, and unexpected changes to your browser settings or homepage. You may also experience issues with your internet connection or notice that your system is behaving erratically. It is essential to be aware of these symptoms and take action quickly to prevent further damage.

How to Remove PUP.MSIL.DownloadSponsor.A

1. Boot your system in Safe Mode with Networking to prevent PUP.MSIL.DownloadSponsor.A from loading and to give you a clean environment to work in.
2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect any malicious components related to PUP.MSIL.DownloadSponsor.A.
3. Uninstall any suspicious programs or applications that you do not recognize or that were installed without your consent.
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 a follow-up scan to ensure that PUP.MSIL.DownloadSponsor.A has been completely removed.

Conclusion

Removing PUP.MSIL.DownloadSponsor.A from your system requires careful attention to detail and a thorough understanding of the threat. By following the steps outlined above and using reputable anti-malware tools, you can help to ensure that your system is clean and secure. It is also essential to be proactive in preventing future infections by being cautious when downloading software, avoiding suspicious links, and keeping your operating system and security software up to date. Remember that PUP.MSIL.DownloadSponsor.A is just one example of the many potentially unwanted programs that can infect your system, so it is crucial to remain vigilant and take steps to protect your digital security.

Analysis Report

General information

Family Name:	PUP.MSIL.DownloadSponsor.A
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: e39e057b7cd467d6bcf7a2f0c66ff421 SHA1: ddea05ae47ebd453981c8e5748dd8838680c790e SHA256: 6281B812B9C9D1B23DF9BD204B34D3C9D44F35A4AAF739AB6C8E437333BAB8C5 File Size: 253.95 KB, 253952 bytes

MD5: e03d94fbfd0724d9090079b89faa8961 SHA1: bd20065545494a9a4680dc36ab6ed0b1c36dae5b SHA256: F0B53378AA56A9CE9E7E23305FBB0BC349CCB81B837CD05025A2C980AF5884B2 File Size: 512.00 KB, 512000 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 debug information
• File doesn't have exports table
• File doesn't have relocations information
• 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 Native application (NOT .NET application)

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• 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
Assembly Version	1.0.0.0
Comments	OCSClient v5.0 Presetup für OnlineContent
Company Name	OCS www.download-sponsor.de
File Description	OCS
File Version	1.00 1.0.0.0
Internal Name	OCS.exe ocsclient
Legal Copyright	Copyright @ www.download-sponsor.de Copyright © Project OCS
Original Filename	OCS.exe ocsclient.exe
Product Name	OCS OCSClient
Product Version	1.00 1.0.0.0

File Traits

• .NET
• .sdata
• Installer Version
• NewLateBinding
• x86

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\ocs\icsharpcode.sharpziplib.dll	Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\users\user\appdata\local\temp\ocs\ocs_v6a.exe	Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\users\user\appdata\local\temp\~df01f4b0a8c745a690.tmp	Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\users\user\appdata\roaming\ocs\ocs\1.0.0.0\ocs_v6a.log	Generic Write,Read Attributes

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
HKCU\software\ocs::cid	35d2160d-4d30-4533-b9b2-807f14f3d7e3	RegNtPreCreateKey
HKCU\software\ocs::cid	5d3ac2f4-f86e-40a8-8d41-d7352bfc39d9	RegNtPreCreateKey
HKCU\software\ocs::pid	freewarede	RegNtPreCreateKey
HKCU\software\ocs::lastpid	freewarede	RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75	�m  8��8 z�jg�B �8 �� �6 �v z�Z xy �� �a��T�B�����������5���� +Bx�< ��5�R �!wz"Wc#�#�� $kF $��%:�%`�%� &� &�-(�(X�)E )�`*J*9 *�" +�[,=�,��-!R/9�/��0P% 1`	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!NtAccessCheck ntdll.dll!NtAlpcConnectPort ntdll.dll!NtAlpcSendWaitReceivePort ntdll.dll!NtApphelpCacheControl ntdll.dll!NtClearEvent ntdll.dll!NtClose ntdll.dll!NtConnectPort ntdll.dll!NtCreateEvent ntdll.dll!NtCreateFile ntdll.dll!NtCreateKey Show More ntdll.dll!NtCreateMutant ntdll.dll!NtCreateSection ntdll.dll!NtDeviceIoControlFile ntdll.dll!NtDuplicateToken ntdll.dll!NtEnumerateKey ntdll.dll!NtEnumerateValueKey ntdll.dll!NtFlushProcessWriteBuffers ntdll.dll!NtFreeVirtualMemory ntdll.dll!NtMapViewOfSection ntdll.dll!NtOpenEvent ntdll.dll!NtOpenFile ntdll.dll!NtOpenKey ntdll.dll!NtOpenKeyEx ntdll.dll!NtOpenProcessToken ntdll.dll!NtOpenSection ntdll.dll!NtOpenSemaphore ntdll.dll!NtOpenThreadToken ntdll.dll!NtPowerInformation ntdll.dll!NtProtectVirtualMemory ntdll.dll!NtQueryAttributesFile ntdll.dll!NtQueryDefaultLocale ntdll.dll!NtQueryDirectoryFileEx ntdll.dll!NtQueryFullAttributesFile 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!NtQuerySystemInformation ntdll.dll!NtQueryValueKey ntdll.dll!NtQueryVirtualMemory ntdll.dll!NtQueryVolumeInformationFile ntdll.dll!NtQueryWnfStateData ntdll.dll!NtReadRequestData 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!NtSetValueKey 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!NtWriteFile UNKNOWN
User Data Access	GetUserObjectInformation
Anti Debug	IsDebuggerPresent OutputDebugString
Other Suspicious	SetWindowsHookEx
Process Manipulation Evasion	NtUnmapViewOfSection
Process Shell Execute	CreateProcess
Encryption Used	CryptAcquireContext

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\Hgaiuozb\AppData\Local\Temp\OCS\ocs_v6a.exe -install -h356209 -freewarede -f467d56c062440edbca37875dc2fefa9 - -