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Category: Artefacts

Was the firewall blocking traffic? Identifying active firewall rules using registry analysis.

I came across this question recently in relation to claims that access to a Windows 8 host via Windows Remote Desktop Protocol was blocked by the firewall configuration. This post describes my research into the registry artefacts related to answering the question, and provides a patch to RegRipper to assist in analysis. Theory of operation Windows 8 uses the same firewall configuration entries used by Windows 7. Windows ships with a number of firewall rules enabled, and these may be added to or modified by the user, for example using the windows firewall control panel applet.

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Zone Identifier Internals

The “Zone.Identifier” file is a common artefact observed when undertaking forensic examinations of Windows systems. More correctly, this isn’t a file. Rather, it is an Alternate Data Stream (ADS), attached to content downloaded from the internet by Internet Explorer. The stream’s purpose: to record the source of the file so that judgements about its level of trust can later on be made by the Windows OS, particularly when running downloaded executable files.

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