Of note is the following code that is at the end of the script:. Note that this attack was not malware per se but rather a browser hijack. For starters, WMI is a Windows process and as such is considered safe.
Therefore anything run by it is not as a rule automatically scanned. If the Malwarebytes example was indeed scanned, there is nothing in the script itself that would have been detected by an existing at the time malware signature.
One thing Eset could do is take a look at is the monitoring of scripts run by scrcons. Appears Zemana has this capability. I won't comment on it other than to note the recommended mitigations with no. Note that this would have to be thoroughly tested on any Win 10 device since I suspect it is sending telemetry data to Microsoft via remote WMI connection:.
Aside from deploying defensive permanent WMI event subscriptions, there are several mitigations that may prevent some or all WMI attacks from occurring. Consider disabling the WMI service. Consider your organizations need for remote WMI access. Do consider however any unintended side effects of stopping the WMI service. Consider blocking the WMI protocol ports. This is a more realistic mitigation over disabling the WMI service.
However, you can set up the WMI service to run as the only process in a separate host and specify a fixed port. The following procedure is an automated setup to allow WMI to have a fixed port.
The procedure uses the winmgmt command-line tool. Stop the WMI service by typing the command: net stop "Windows Management Instrumentation", or use the short name of net stop winmgmt. Restart the WMI service again in a new service host by typing: net start "Windows Management Instrumentation" or net start winmgmt.
Also at this point, it is fair to state that something is gaining access to your network and creating something that can run with administrator privilege's which is required to create a WMI ActiveScriptEventConsumer event. Also note that opening malicious Word phishing based e-mail outside of Protected mode and unwittingly enabling macros and the like could also be the source of the malware.
BTW - what caused the Eset malware detection? Appears someone is sending a message there. Did you recently terminate someone in the IT department? Someone who had access to the network and could have installed something with admin privileges?
Right now no detection. But we want to add this to memory detection , S. NUN trojan Chr0me. AX application msA. YWQ trojan regedit DU trojan. This should have detected the startup of the malicious ActiveScriptEventConsumer event script. This is indicative of a Bitcoin Miner virus.
Also in your case, the WMI malware is secondary malware. Something is entering your network and installing primary malware with admin privileges. Once it has those privileges, it can do pretty much what it wants including creating a WMI consumer event. You need to perform a security audit on your network perimeter looking for open ports and susceptible protocols.
Are all your servers and endpoints for that matter fully patched? Yes All Security patches are installed, these malware may be installed before these security activities.
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DestinationIp, d. ImageLoaded, a. CommandLine, b. ProcessGuid, a. TargetUserName, c. Your scrcons. Furthermore, scrcons. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly. If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your scrcons. These troubleshooting steps are listed in the recommended order of execution. System File Checker is a utility included with every Windows version that allows you scan and restore corrupted system files.
Use the SFC tool to fix missing or corrupt scrcons. When the first two steps haven't solved your issue, it might be a good idea to run Windows Update.
Many scrcons. To run Windows Update, please follow these easy steps:. If Windows Update failed to resolve the scrcons. Please note that this final step is recommended for advanced PC users only.
If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach Note: Not recommended for amateur PC users by downloading and replacing your appropriate scrcons.
Please follow the steps below to download and properly replace you file:. If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.
Microsoft typically does not release Windows MUI files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing scrcons.
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