Threat Database Adware Adware.MSIL.OpenSUpdater.AZ

Adware.MSIL.OpenSUpdater.AZ

By CagedTech in Adware

Threat Scorecard

Popularity Rank: 19,025
Threat Level: 20 % (Normal)
Infected Computers: 22
First Seen: August 17, 2023
Last Seen: May 10, 2026
OS(es) Affected: Windows

The detection of Adware.MSIL.OpenSUpdater.AZ on your system indicates the presence of a potentially unwanted program that could be compromising your computer's security and performance. This guide is designed to provide you with a comprehensive understanding of the threat and steps to remove it effectively.

What Is Adware.MSIL.OpenSUpdater.AZ?

Adware.MSIL.OpenSUpdater.AZ is identified as an adware program, which typically refers to software that displays unwanted advertisements on your computer, often in the form of pop-ups, banners, or sponsored content within websites. The name suggests it might be related to updating or installing software, but its primary function appears to be generating revenue for its creators by displaying ads. Adware can be annoying and disruptive to your browsing experience, and in some cases, it may also collect personal data without your consent.

How Adware.MSIL.OpenSUpdater.AZ Operates

Adware programs like Adware.MSIL.OpenSUpdater.AZ usually operate by infiltrating your system through various means, such as bundled software downloads, deceptive advertisements, or exploits in software vulnerabilities. Once installed, they can alter your browser settings, add toolbars, or change your homepage to direct you to specific websites that generate income for the adware creators. They may also monitor your browsing habits to deliver targeted advertisements, which can be intrusive and raise significant privacy concerns.

Symptoms of Infection

If your computer is infected with Adware.MSIL.OpenSUpdater.AZ, you might notice several symptoms. These can include an increase in unwanted advertisements appearing on your screen, unexpected changes to your browser settings, the addition of unfamiliar toolbars, or a general slowdown in your computer's performance due to the adware consuming system resources. You might also experience redirects to unwanted websites or find that your search results are being hijacked to display sponsored content.

  • Increased appearance of pop-ups, banners, and other forms of advertisements.
  • Changes to your browser's homepage or default search engine without your consent.
  • Presence of unfamiliar toolbars or extensions in your web browser.
  • Slowing down of your computer or browser due to the adware's resource consumption.

How to Remove Adware.MSIL.OpenSUpdater.AZ

Removing Adware.MSIL.OpenSUpdater.AZ requires a systematic approach to ensure that all components of the adware are eliminated from your system. Here are the steps to follow:

  1. Boot your computer in Safe Mode with Networking to prevent the adware from loading and to give you a clean environment to work in.
  2. Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all traces of the adware.
  3. Uninstall any suspicious programs or applications that you do not recognize or that were installed around the time the adware was detected.
  4. Reset your web browsers (Google Chrome, Mozilla Firefox, Microsoft Edge) to their default settings to remove any changes made by the adware, such as altered homepages, search engines, or added extensions.
  5. Reboot your computer and perform another scan with your anti-malware tool to ensure that all remnants of the adware have been removed.

Conclusion

Dealing with adware like Adware.MSIL.OpenSUpdater.AZ requires vigilance and the right tools. By understanding how adware operates and following the removal steps outlined, you can effectively eliminate this threat from your system and restore your computer to a secure and optimal state. It's also crucial to adopt preventive measures, such as being cautious with downloads, keeping your software up to date, and using robust security software, to minimize the risk of future infections.

Analysis Report

General information

Family Name: Adware.MSIL.OpenSUpdater.AZ
Signature status: No Signature

Known Samples

MD5: 158fafa10d2218aa47999131194736f2
SHA1: 27d12d326a145b771dac80ae1ad87cf7a5b7785a
SHA256: 8BA915193E092D44BAD17E01C4E5BE8FA5278CA2AC3D9769168C666321FC0406
File Size: 262.66 KB, 262656 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 64-bit executable
  • File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
  • File is either console or GUI application
  • 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

File Traits

  • No Version Info
  • WriteProcessMemory
  • x64

Block Information

Total Blocks: 714
Potentially Malicious Blocks: 81
Whitelisted Blocks: 517
Unknown Blocks: 116

Visual Map

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

Registry Modifications

Key::Value Data API Name
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\cmd.exe ▁宫➲ǜ RegNtPreCreateKey

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenThread
Show More
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDirectoryFileEx
  • ntdll.dll!NtQueryFullAttributesFile
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtWriteFile
  • ntdll.dll!NtWriteVirtualMemory
  • win32u.dll!NtUserGetKeyboardLayout
  • win32u.dll!NtUserGetThreadState

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