Threat Database Adware Adware.OpenSUpdater.XC

Adware.OpenSUpdater.XC

By CagedTech in Adware
Published:
Last updated:

Threat Scorecard

Popularity Rank: 12,949
Threat Level: 20 % (Normal)
First Seen: July 25, 2026
Last Seen: October 11, 2026
OS(es) Affected: Windows

Adware.OpenSUpdater.XC is a potentially unwanted program classified as adware, designed to run on Windows systems. It is built to display or download advertisements on an infected computer, often without clearly asking for the user's permission first. While it is not considered highly dangerous, with a relatively low severity rating, it can still be a persistent nuisance and a privacy concern for everyday computer users.

What Adware.OpenSUpdater.XC Does

Once active on a system, this adware is capable of generating pop-up windows, inserting ads into web browsers, or adding unwanted toolbars and ad-supported content to the user's computing experience. Like many adware families, OpenSUpdater.XC may also monitor browsing activity, including websites visited and ad interactions, and send this information to third parties. This data is typically used to build advertising profiles so that more "targeted" ads can be served to the user.

Technically, samples associated with this threat have been observed disguising themselves with file details resembling legitimate graphics library components, which can make them appear more trustworthy to an untrained eye. The program has also been seen using rundll32.exe, a legitimate Windows utility, to execute its code — a technique that can help it blend in with normal system activity and make manual detection more difficult for the average user.

How It Usually Gets Onto Computers

Adware like OpenSUpdater.XC commonly spreads by being bundled with free software downloads. This can include freeware programs such as games, emoticon packs, file-sharing tools, screensavers, and other "free" utilities obtained from unofficial or less reputable websites. During installation of the bundled software, the adware component may be included as a pre-selected option, meaning it can install itself alongside the desired program if the user doesn't carefully review and opt out of additional offers during setup.

Risks for the User

While adware is generally less severe than other forms of malware, it still carries real risks. The constant barrage of pop-ups and ads can disrupt normal browsing and reduce system performance. More importantly, the tracking of browsing habits and transmission of this data to third parties raises privacy concerns, as users often have little visibility into who receives this information or how it is used. In some cases, adware can also act as a gateway, exposing users to misleading ads that lead to other unwanted or harmful downloads.

Signs of Infection

Users dealing with this type of adware may notice unexpected pop-up ads appearing on their desktop or within their web browser, even when no browser is actively open. Browser settings such as the homepage or default search engine may change without consent. Unfamiliar toolbars or browser extensions may appear, and overall system or browser performance may feel sluggish due to background processes running without the user's knowledge.

How to Stay Protected

To reduce the risk of adware infections, users should download software only from official or well-known sources, and always choose "custom" or "advanced" installation options to review and deselect any bundled extras. Keeping the operating system and installed applications updated, avoiding suspicious download links, and running regular system scans with trusted security software are also effective habits. Reviewing installed programs and browser extensions periodically can help catch unwanted adware before it causes further issues.

Analysis Report

General information

Family Name: Adware.OpenSUpdater.XC
Signature status: No Signature

Known Samples

MD5: e9f0e1046d8841661593b0c91ebdf506
SHA1: e83071323944f29a8952061cf1ff3178a3bf09f4
SHA256: 239868F2AF6F0821DA04F4CC8B964214107D7627D44080FC2F1B803427B149D3
File Size: 2.91 MB, 2908672 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have security information
  • File has exports table
  • File has TLS information
  • File is 32-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)
Show 1 more
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

Windows PE Version Information

Name Value
File Description SwiftShader libGLESv2 32-bit Dynamic Link Library
File Version 4.6.6.6
Internal Name libGLESv2
Legal Copyright Copyright (C) 2016 Google Inc.
Original Filename libGLESv2.dll
Private Build 4.6.6.6
Product Name SwiftShader libGLESv2 Dynamic Link Library
Product Version 4.6.6.6

File Traits

  • dll
  • HighEntropy
  • x86

Block Information

Total Blocks: 7,194
Potentially Malicious Blocks: 1,778
Whitelisted Blocks: 5,416
Unknown Blocks: 0

Visual Map

... Data truncated
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Similar Families

  • OpenSUpdater.XC

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
Show 18 more
  • 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
Process Shell Execute
  • CreateProcess
Anti Debug
  • NtQuerySystemInformation

Shell Command Execution

C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\e83071323944f29a8952061cf1ff3178a3bf09f4_0002908672.,LiQMAxHB