Hey bro! I'm not an advisor or anything like that, just found this thread with the same issue as you. It's possible you (and I) are infected with the StripedFly malware, which was just discovered by Kaspersky labs. From the article ( https://www.bleepingcomputer.com/news/security/stripedfly-malware-framework-infects-1-million-windows-linux-hosts/ ) Obligatory non windows site warning (not that it matters if your DNS is spoofed). I have the file on my system too. Hoping someone at microsoft gets on this.
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For persistence on Windows systems, StripedFly adjusts its behavior based on the level of privileges it runs on and the presence of PowerShell.
Without PowerShell, it generates a hidden file in the %APPDATA% directory. In cases where PowerShell is available, it executes scripts for creating scheduled tasks or modifying Windows Registry keys.
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Edit: The file on my computer was in the C:\Users[my user]\AppData\Local\Microsoft\Windows\PowerShell dirrectory. There were 3 files:
ModuleAnalysisCache
StartupProfileData-Interactive
StartupProfileData-NonInteractive