Adware.MSIL.OpenSUpdater.RZ
Threat Scorecard
EnigmaSoft Threat Scorecard
EnigmaSoft Threat Scorecards are assessment reports for different malware threats which have been collected and analyzed by our research team. EnigmaSoft Threat Scorecards evaluate and rank threats using several metrics including real-world and potential risk factors, trends, frequency, prevalence, and persistence. EnigmaSoft Threat Scorecards are updated regularly based on our research data and metrics and are useful for a wide range of computer users, from end users seeking solutions to remove malware from their systems to security experts analyzing threats.
EnigmaSoft Threat Scorecards display a variety of useful information, including:
Popularity Rank: The ranking of a particular threat in EnigmaSoft’s Threat Database.
Severity Level: The determined severity level of an object, represented numerically, based on our risk modeling process and research, as explained in our Threat Assessment Criteria.
Infected Computers: The number of confirmed and suspected cases of a particular threat detected on infected computers as reported by SpyHunter.
See also Threat Assessment Criteria.
| Threat Level: | 20 % (Normal) |
| Infected Computers: | 67 |
| First Seen: | July 8, 2025 |
| Last Seen: | February 24, 2026 |
| OS(es) Affected: | Windows |
The detection of Adware.MSIL.OpenSUpdater.RZ on your system indicates the presence of a potentially unwanted program that may be causing disruptions to your computing experience. This type of software is designed to display advertisements and collect user data, often without consent. It's essential to understand the nature of this threat and take prompt action to remove it and prevent future occurrences.
Table of Contents
What Is Adware.MSIL.OpenSUpdater.RZ?
Adware.MSIL.OpenSUpdater.RZ is a type of adware that infiltrates a system, typically through bundled software downloads or exploited vulnerabilities. Its primary purpose is to generate revenue for its creators by displaying unwanted advertisements, such as pop-ups, banners, or sponsored content. This can lead to a cluttered browsing experience, slowed system performance, and potential security risks.
How Adware.MSIL.OpenSUpdater.RZ Operates
Once installed, Adware.MSIL.OpenSUpdater.RZ can operate in the background, collecting user data and transmitting it to its servers. This data may include browsing history, search queries, and other personal information. The adware may also modify system settings, such as registry entries or browser configurations, to ensure its persistence and facilitate the display of advertisements. In some cases, it may even download and install additional malware or potentially unwanted programs.
Symptoms of Infection
Common symptoms of Adware.MSIL.OpenSUpdater.RZ infection include an increased number of advertisements displayed on your system, slower browser performance, and unexpected changes to your homepage or search engine. You may also notice unfamiliar programs or toolbars installed on your system, or experience frequent crashes or freezes. If you've noticed any of these symptoms, it's crucial to take immediate action to remove the adware and prevent further damage.
How to Remove Adware.MSIL.OpenSUpdater.RZ
- Boot your system in Safe Mode with Networking to prevent the adware from loading and to allow for a more effective removal process.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all instances of the adware.
- Uninstall any suspicious programs or applications that may be related to the adware, taking care to review the list of installed programs and features carefully.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any modifications made by the adware.
- Reboot your system and perform a follow-up scan to ensure that all remnants of the adware have been removed.
Conclusion
Removing Adware.MSIL.OpenSUpdater.RZ requires a combination of technical knowledge and caution. By following the steps outlined above and maintaining good computing habits, such as regularly updating your operating system and software, using strong antivirus protection, and being cautious when downloading and installing programs, you can help prevent future infections and protect your system from potential threats. Remember to stay vigilant and monitor your system for any signs of malicious activity, and don't hesitate to seek professional help if you're unsure about any aspect of the removal process.
Analysis Report
General information
| Family Name: | Adware.MSIL.OpenSUpdater.RZ |
|---|---|
| Signature status: | Self Signed |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
e782ec14d9869636d2e2620a630e8239
SHA1:
7b127b72a8382edcb793acb1befbb86c30874da0
File Size:
2.50 MB, 2502992 bytes
|
|
MD5:
86b4ad9d9ee77d9e95f500a6a26a370e
SHA1:
d8b609e8bf8fe02b5984bfe3384fdef93d22296d
File Size:
2.50 MB, 2502992 bytes
|
|
MD5:
61efd134edc8f8dc7e27bf00d355100b
SHA1:
c6e11a30fb9ac2c7d867957adc29658a5eca69a6
File Size:
2.50 MB, 2502992 bytes
|
|
MD5:
7f2db38522979466668484d30c2b906a
SHA1:
81ca50994ece19f15917ab72f2e974af2e1bc23c
File Size:
2.50 MB, 2502992 bytes
|
|
MD5:
6cf228561153fb5ae8e2c6324e6194b6
SHA1:
73de4edd7ed759f58875b1148d20385e6983bb07
SHA256:
68BBF56DF0B1A1D216366E6FD08807D9DF68BCB28FB9F812ADE55537358C26B9
File Size:
2.51 MB, 2507832 bytes
|
Show More
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MD5:
3856c810d38b97767c39c678f3341e22
SHA1:
99d542bdb63f3273decd802379895989255efa2b
SHA256:
398BF44639BBD66E8D1A0513669CC6E8A4921B17D6F4A8BB12169DE2D8DA3CE8
File Size:
2.50 MB, 2502992 bytes
|
|
MD5:
981b61ed262d98673130239ce1f9cc2d
SHA1:
b5b169b6a144f391d0e6ec6ffe37812679c3048a
SHA256:
BFD5AEDEF452C42E08E06999398F63475CBB038A3F9DB6CF05A24D0D63D3C008
File Size:
2.51 MB, 2507832 bytes
|
|
MD5:
10b00a6309ff8875e4daa886c479786c
SHA1:
bbdbff79752b45208f76ebffb2bceb175f6ea216
SHA256:
2AF74BB129B0C0BB90F94F49C1AED8D27FC34D657853BAA99AF07E2063094AA2
File Size:
2.51 MB, 2507832 bytes
|
|
MD5:
858b4aeab208d8a77d838093c5ad3a0f
SHA1:
9f85c37134e92448213136d647a88bc0e3187531
SHA256:
045325FD37E3D0BDF7C3A5370812EF4F6B8D16FAB16ABFA9548357C905B06F74
File Size:
2.51 MB, 2507832 bytes
|
|
MD5:
c5253a6685313ffdccf47c7a054aab32
SHA1:
444fe88ac04dc98d86bca76ab7951edac161c2b9
SHA256:
D5B8AC2534DE096368304043E9997C77F4249315F5EE486A2283723EE7134530
File Size:
2.50 MB, 2502992 bytes
|
|
MD5:
1f47627248ec35d18365bb93e36f3948
SHA1:
b78057e23ea63737d395d8b2849d7e04481f1f93
SHA256:
F8639657FAB8C25254DEA9A3CA7BC864D5B3CC6B0B562D025198E79397517E24
File Size:
2.50 MB, 2502992 bytes
|
|
MD5:
abdad02bef194bc92bd0e3a6386ae30c
SHA1:
3af0599526b9c4ded564103528fa854c5a95d972
SHA256:
338961C8CDC668BA24D373A000CC2B3A552879C959B01F4B9D9FC36F5CD6FED5
File Size:
2.50 MB, 2502992 bytes
|
|
MD5:
1de4b0a834caa2ca6c07db3f47bfb718
SHA1:
f2a5640c49397991ba3b115cfcb9cb780337ed48
SHA256:
7A8724209113A33A30A5CCE5D3EBC696AFF24A197AACB0D9BCAD44FDDD78C895
File Size:
2.50 MB, 2502992 bytes
|
|
MD5:
01c8b4f9993297029a53c0e0b31e8cdb
SHA1:
8b8288bfcec354833fd5aba2665f1cb15c86928a
SHA256:
54974EBD1624AEED92B1AABAEB9689F96B3DF8F369DB16C8EAE988036F6444F6
File Size:
2.51 MB, 2507832 bytes
|
|
MD5:
18d7b76b5cdee560053442e4eaa10ef4
SHA1:
4748740809128ec1fb61c38c6b639d2ca50bd496
SHA256:
6AC29E82E8576E29E9A79EDD21D8B47681DFCAD49148490FE0E00F9F4691F1D2
File Size:
2.50 MB, 2502992 bytes
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|
MD5:
4885669af1f62f0a943e3b76de171133
SHA1:
121f2118f36e1d3faa931c03b367e5a3a77f5df9
SHA256:
9526B21501C4096F2123AA9997D19569079769E222695E4932FBECA40F662789
File Size:
2.51 MB, 2507832 bytes
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|
MD5:
91cfc6a7663852db3975672c22ea51b0
SHA1:
b755a798dba3065563156c7de5470d007f9f836c
SHA256:
D473EEF4D97C59864B3EC63B7C198E80CDFFE50268E1085F219DEE2DDF71E86C
File Size:
2.51 MB, 2507320 bytes
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|
MD5:
8385c471f92f4428fb98e599d82c2bcb
SHA1:
8997af465b8bc02054a516a12adbe4f867718932
SHA256:
D229FF72FF05F74C03035886DAE02218F71682E01CD12DFF5DFB9696DAFD030C
File Size:
2.50 MB, 2502992 bytes
|
|
MD5:
45281ae4c818cfa629d66e78ebeaa1e6
SHA1:
5ae3bd6ed7cea2315bd1d59d5a5ed03a664d42ae
SHA256:
359FE9E7614C7715AF58B9ADA4B48D20E7C04A7FE5E5A34BE0684861059E4464
File Size:
2.50 MB, 2502992 bytes
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|
MD5:
f10aef648197f41807afde894d56debe
SHA1:
fd10c8076932465e121358239f7117ef85f7af6d
SHA256:
389AF772F2F1293C223BE4FFC8E0A038E4DF90B28A8F1E05A0B540DE6622B742
File Size:
2.51 MB, 2507320 bytes
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|
MD5:
81032f76a6e1ab9c8827983db292f747
SHA1:
a4f07d5936525fdd022fb87e713474ff510ccfeb
SHA256:
9AC27BD8450BDA4DDA3B4AA6E9EE05F6C3B5C3650DB3E217CBB48EFD1F238242
File Size:
2.51 MB, 2507320 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have exports table
- 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
- IMAGE_FILE_DLL is not set inside PE header (Executable)
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
Digital Signatures
Digital Signatures
This section lists digital signatures that are attached to samples within this family. When analyzing and verifying digital signatures, it is important to confirm that the signature’s root authority is a well-known and trustworthy entity and that the status of the signature is good. Malware is often signed with non-trustworthy “Self Signed” digital signatures (which can be easily created by a malware author with no verification). Malware may also be signed by legitimate signatures that have an invalid status, and by signatures from questionable root authorities with fake or misleading “Signer” names.| Signer | Root | Status |
|---|---|---|
| ConnectWise, LLC | DigiCert Trusted Root G4 | Root Not Trusted |
| ScreenConnect Client | ScreenConnect Client | Self Signed |
File Traits
- No Version Info
- x86
Block Information
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: | 1,606 |
|---|---|
| Potentially Malicious Blocks: | 29 |
| Whitelisted Blocks: | 1,577 |
| Unknown Blocks: | 0 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
Similar Families
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.- MSIL.OpenSUpdater.RZ
Registry Modifications
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\system\controlset001\services\eventlog\application\screenconnect::eventmessagefile | C:\Windows\Microsoft.NET\Framework\v4.0.30319\EventLogMessages.dll | RegNtPreCreateKey |
Windows API Usage
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 |
|---|---|
| User Data Access |
|
| Anti Debug |
|
| Encryption Used |
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| Other Suspicious |
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