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MSI software flagged as malware?


Kalnon
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Hello, I'm trying to figure out if what I've downloaded is really malware or not.  I have two MSI gaming monitors and they each have a different OSD app because they are different models.  The OSD apps are just a way to adjust monitor settings via the Windows app instead of using the monitor's buttons.  I originally installed them before I started using Malwarebytes Premium.  I recently downloaded the latest versions to update the apps directly from MSI's official website.  I unzipped the files for each app and tried running the setup executables and each time Malwarebytes flagged both as Malware.Heuristic.1003 and quarantined a file in a temp folder called ISSetup.dll.  I think it has to be a false positive because I downloaded it directly from the manufacturer's website but I want to be absolutely sure before I try to install these apps because I don't know a lot about malware.  I would greatly appreciate any help anyone can give to help me resolve this.  If further information is needed, please let me know and I will do my best to provide it, thanks.

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This is detected cause expert system algorithms is set to on. It is recommended to turn it off. Please post the scan log showing the detection and if possible please zip and attach the file detected here so we can further analyze it. 

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Okay, thank you for the response and you are correct, I did have expert system algorithms turned on.  I'm curious though what this setting is used for or when would it be appropriate to use this setting? Could you please direct me to where the log files are stored?  I can't seem to find them.  As for attaching the file in a zip file, should I just restore the file and zip it?  That's the only way I can think of.  Or maybe I could attach the zip files I downloaded from MSI's website containing the setup files?  Sorry for all the questions, I know my way around computers very well but as I said before I don't know a lot about dealing with or handling malware and viruses in these ways.

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Found the logs.  I'm pretty sure this is the right one.

 

2B25408A16A6024444864853C81F139EBE4137F0FDF333B518541D626D3C423C
{
   "applicationVersion" : "4.4.2.123",
   "chromeSyncResetQueryRequested" : false,
   "chromeSyncResetQueryResult" : false,
   "clientID" : "687ad622-ae6f-11eb-872e-00d861722ec9",
   "clientType" : "scheduledScan",
   "componentsUpdatePackageVersion" : "1.0.1358",
   "coreDllFileVersion" : "3.0.0.1165",
   "cpu" : "x64",
   "dbSDKUpdatePackageVersion" : "1.0.42939",
   "detectionDateTime" : "2021-07-11T07:38:30Z",
   "fileSystem" : "NTFS",
   "id" : "fcfb5c34-e21a-11eb-b63a-000000000000",
   "isUserAdmin" : true,
   "licenseState" : "licensed",
   "linkagePhaseComplete" : true,
   "loggedOnUserName" : "System",
   "machineID" : "",
   "os" : "Windows 10 (Build 19042.1052)",
   "schemaVersion" : 19,
   "sourceDetails" : {
      "aggressiveMode" : false,
      "clientMetadata" : {
         "jobId" : "",
         "scheduleId" : "",
         "scheduleTag" : ""
      },
      "ddsigEnabled" : true,
      "filesScannedByIG" : 0,
      "objectsScanned" : 395052,
      "scanEndTime" : "2021-07-11T07:48:24Z",
      "scanOnlineStatus" : "online",
      "scanOptions" : {
         "pumHandling" : "detect",
         "pupHandling" : "detect",
         "scanArchives" : true,
         "scanFileSystem" : true,
         "scanMemoryObjects" : true,
         "scanPUMs" : true,
         "scanPUPs" : true,
         "scanRookits" : false,
         "scanStartupAndRegistry" : true,
         "scanType" : "threat",
         "useHeuristics" : true
      },
      "scanResult" : "completed",
      "scanStartTime" : "2021-07-11T07:38:30Z",
      "scanState" : "completed",
      "shurikenEnabled" : true,
      "type" : "scan"
   },
   "threats" : [
      {
         "ddsSigFileVersion" : "01328059",
         "linkedTraces" : [

         ],
         "mainTrace" : {
            "archiveMember" : "Binary.ISSetup.dll.msi",
            "archiveMemberMD5" : "414146989270065C3B32E823F63155ED",
            "cleanAction" : "ignore",
            "cleanContext" : {
            },
            "cleanResult" : "notStarted",
            "cleanResultErrorCode" : 0,
            "cleanTime" : "",
            "generatedByPostCleanupAction" : false,
            "hubbleRequestErrorCode" : -3,
            "id" : "338c1404-e21c-11eb-8345-000000000000",
            "igExitCode" : "",
            "isPEFile" : true,
            "isPEFileValid" : true,
            "isWhitelistedByAdsInfo" : false,
            "linkType" : "none",
            "objectMD5" : "963D8819B79E53588D7AE2F8F3B26112",
            "objectPath" : "C:\\WINDOWS\\INSTALLER\\26C713.MSI",
            "objectSha256" : "F98157C29EA7FEA5AF69C68FCC8F17C99F6ADA0ABEFD847B77B2867400B52EC1",
            "objectSize" : -1,
            "objectType" : "file",
            "resolvedPath" : "",
            "suggestedAction" : {
               "archiveDir" : false,
               "chromeExtensionOther" : false,
               "chromeExtensionPreferences" : false,
               "chromeExtensionSecurePreferences" : false,
               "chromeExtensionSyncData" : false,
               "chromeUrlOther" : false,
               "chromeUrlSecurePreferences" : false,
               "chromeUrlSyncData" : false,
               "chromeUrlWebData" : false,
               "disableHubbleWhiteListing" : false,
               "disableSignatureWhiteListing" : false,
               "fileDelete" : true,
               "fileReplace" : false,
               "fileTxtReplace" : false,
               "folderDelete" : false,
               "isChromeObject" : false,
               "isDDS" : true,
               "isDoppleganging" : false,
               "isExternalDetection" : false,
               "isPUP" : false,
               "isShuriken" : false,
               "isWMIEventConsumer" : false,
               "killProcess" : false,
               "minimalWhiteListing" : false,
               "moduleUnload" : false,
               "noLinking" : false,
               "physicalSectorReplace" : false,
               "priorityHigh" : false,
               "priorityNormal" : false,
               "priorityUrgent" : false,
               "processUnload" : false,
               "regKeyDelete" : false,
               "regValueDelete" : false,
               "regValueReplace" : false,
               "shortcutReplace" : false,
               "silentMode" : true,
               "singleDelete" : false,
               "treatAsRootkit" : false,
               "useDDA" : false,
               "verifyResolvedPath" : false,
               "whitelistCheckError" : false
            },
            "winVerifyTrustResult" : {
               "expectedError" : false,
               "lastErrorCode" : 0,
               "wvtCalled" : true,
               "wvtResult" : 0
            }
         },
         "ruleID" : 935131,
         "ruleString" : "0000000000000000000003EB",
         "rulesVersion" : "1.0.42939",
         "srcEngineComponent" : "dds",
         "srcEngineThreatNames" : [
            "Malware.Heuristic.1003"
         ],
         "threatID" : 1000001,
         "threatName" : "Malware.Heuristic.1003"
      },
      {
         "ddsSigFileVersion" : "01328059",
         "linkedTraces" : [

         ],
         "mainTrace" : {
            "archiveMember" : "Binary.ISSetup.dll.msi",
            "archiveMemberMD5" : "C40950BEABA9DF3A913A46382BE15587",
            "cleanAction" : "ignore",
            "cleanContext" : {
            },
            "cleanResult" : "notStarted",
            "cleanResultErrorCode" : 0,
            "cleanTime" : "",
            "generatedByPostCleanupAction" : false,
            "hubbleRequestErrorCode" : -3,
            "id" : "3bf1a83e-e21c-11eb-b1f6-000000000000",
            "igExitCode" : "",
            "isPEFile" : true,
            "isPEFileValid" : true,
            "isWhitelistedByAdsInfo" : false,
            "linkType" : "none",
            "objectMD5" : "9A8E2A98FC0E831E0896ECF5D101BDA7",
            "objectPath" : "C:\\WINDOWS\\INSTALLER\\26C723.MSI",
            "objectSha256" : "8440A0A2885C118D830FA0FB98A85007D1D26FBDB9CF100CCEDC46ED05AB4F4E",
            "objectSize" : -1,
            "objectType" : "file",
            "resolvedPath" : "",
            "suggestedAction" : {
               "archiveDir" : false,
               "chromeExtensionOther" : false,
               "chromeExtensionPreferences" : false,
               "chromeExtensionSecurePreferences" : false,
               "chromeExtensionSyncData" : false,
               "chromeUrlOther" : false,
               "chromeUrlSecurePreferences" : false,
               "chromeUrlSyncData" : false,
               "chromeUrlWebData" : false,
               "disableHubbleWhiteListing" : false,
               "disableSignatureWhiteListing" : false,
               "fileDelete" : true,
               "fileReplace" : false,
               "fileTxtReplace" : false,
               "folderDelete" : false,
               "isChromeObject" : false,
               "isDDS" : true,
               "isDoppleganging" : false,
               "isExternalDetection" : false,
               "isPUP" : false,
               "isShuriken" : false,
               "isWMIEventConsumer" : false,
               "killProcess" : false,
               "minimalWhiteListing" : false,
               "moduleUnload" : false,
               "noLinking" : false,
               "physicalSectorReplace" : false,
               "priorityHigh" : false,
               "priorityNormal" : false,
               "priorityUrgent" : false,
               "processUnload" : false,
               "regKeyDelete" : false,
               "regValueDelete" : false,
               "regValueReplace" : false,
               "shortcutReplace" : false,
               "silentMode" : true,
               "singleDelete" : false,
               "treatAsRootkit" : false,
               "useDDA" : false,
               "verifyResolvedPath" : false,
               "whitelistCheckError" : false
            },
            "winVerifyTrustResult" : {
               "expectedError" : false,
               "lastErrorCode" : 0,
               "wvtCalled" : true,
               "wvtResult" : 0
            }
         },
         "ruleID" : 935131,
         "ruleString" : "0000000000000000000003EB",
         "rulesVersion" : "1.0.42939",
         "srcEngineComponent" : "dds",
         "srcEngineThreatNames" : [
            "Malware.Heuristic.1003"
         ],
         "threatID" : 1000001,
         "threatName" : "Malware.Heuristic.1003"
      }
   ],
   "threatsDetected" : 0
}

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Sorry I was wrong, I believe that log was a scheduled scan that detected nothing, please ignore it.  After going through the other logs around the same time I don't think there is one because Malwarebytes automatically detected it and notified me in a notification as I was trying to run the executable.

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Also I should add, I did scan the zip files I downloaded from the website before trying to run them and Malwarebytes said nothing was found.  This was before I tried to run the setup executable.

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1 hour ago, Kalnon said:

I'm curious though what this setting is used for or when would it be appropriate to use this setting?

It should stay off until Malwarebytes enables it for you by default.

FYI. This setting is in the experimental stage.

That setting is to detect malformed files, but sometimes legit files use protection that make them malformed. Malwarebytes is still tweaking the algorithms that is why it’s off by default. If you switch it on it is assumed, you can tell the difference between a FP and a legit detection. 

And if you keep it on, I suggest also turn off auto quarantine. Gives you the time to report FP's and not go thru the extra step to have to restore from quarantine.

Please turn off "Use expert system algorithms to identify malicious files” It is located in Settings > Security> Scan option to avoid these detection's

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