Hidden Files

Defense Evasion, Persistence

Execution
Hiding the file mantvydas.sdb using a native windows binary:
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PS C:\experiments> attrib.exe +h .\mantvydas.sdb
Note how powershell (or cmd) says the file does not exist, however you can type out its contents if you know the file exists:
Note, that dir /a:h (attribute: hidden) reveals files with a "hidden" attribute set:
Observations
As usual, monitoring commandline arguments may be a good idea if you want to identify these events:
References
Hide Artifacts: Hidden Files and Directories, Sub-technique T1564.001 - Enterprise | MITRE ATT&CK®
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Alternate Data Streams

Encode/Decode Data with Certutil

Last modified 4yr ago