![]() Analytic 1 - NTFS Alternate Data Stream Execution : System Utilities (Powershell)Īds_processes = filter processes where (event_id = 1 exe = "C:\Windows\ \powershell.exe" AND command_line = "Invoke-CimMethod\s+-ClassName\s+Win32_Process\s+-MethodName\s+Create.\b(\w+(.\w+)?):(\w+(.\w+)?)|-ep bypass\s+-\s+<. Many PowerShell commands (such as Get-Item, Set-Item, Remove-Item, and Get-ChildItem) can also accept a -stream parameter to interact with ADSs. The dir /r command can also be used to display ADSs. The Streams tool of Sysinternals can be used to uncover files with ADSs. Some variants of the Zeroaccess Trojan have been known to store data in Extended Attributes. WastedLocker has the ability to save and execute files as an alternate data stream (ADS). Valak has the ability save and execute files as alternate data streams (ADS). The Regin malware platform uses Extended Attributes to store encrypted executables. ![]() If the victim is using PowerShell 3.0 or later, POWERSOURCE writes its decoded payload to an alternate data stream (ADS) named kernel32.dll that is saved in %PROGRAMDATA%\Windows\. PowerDuke hides many of its backdoor payloads in an alternate data stream (ADS). LoJax has loaded an embedded NTFS DXE driver to be able to access and write to NTFS partitions. Gazer stores configuration items in alternate data streams (ADSs) if the Registry is not accessible. Įxpand can be used to download or copy a file into an alternate data stream. Įsentutl can be used to read and write alternate data streams. The DEADEYE.EMBED variant of DEADEYE can embed its payload in an alternate data stream of a local file. īitPaymer has copied itself to the :bin alternate data stream of a newly created file. Īstaroth can abuse alternate data streams (ADS) to store content for malicious payloads. Old and new values of modifications are listed side by side for a comparision.Īll logged activity can be exported into comma separated text files for further processing in a spreadsheet or to be archived.APT32 used NTFS alternate data streams to hide their payloads. You are able to build powerful exceptions like *.TMP, WRD?.DOC, *(?)*.TXT etcĪttribute Changer keeps track of modified and failed files and folders during processing.īy default, Attribute Changer displays failed actions in the Reporting tab, but a more detailed view can be activated at any time to display a complete view of all activities in realtime, such as successful and failed changes. Name filters are useful to exclude/include files and folders based on wildcard characters (* and ?). Ranges can be defined for date, time and size related criteria. Powerful filters can be applied to include or exclude objects based on attributes, date, time, size and name wildcards. Redate folder with newest or oldest folder.Redate folder with newest or oldest file.Partial updates (for example only day or minute etc.).Modify or add photo date and time (EXIF).Add/Subtract values on day, month and year.Add/Subtract values on hour, minute and second. ![]() On photos, date and time information stored in the EXIF header can be easily altered or even added if missing.Ĭhoose among a set of powerful features to resolve issues about date and time modifications. Powerful options are available to manipulate date and time stamps on files and folders. Files and folders can be hidden under normal conditions if the Hidden attribute is set.įor better readibility, Attribute Changer can be used to Capitalize, Uppercase or Lowercase filenames, foldernames and extensions. Much more powerful options include simulation, batch processing, randomization, synchronization among others.įor example, you can make a file Read-Only to prevent software programs from saving changes to a file. Filesystem attributes can be changed and you can uppercase, lowercase or capitalize names. Attribute Changer can modify date and time on files, folders and photos.
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