Hidden Files

Defense Evasion, Persistence

Execution

Hiding the file mantvydas.sdb using a native windows binary:

attacker@victim

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®