Enterprise Recon 2.0.31

Remediation

Matches found during scans must be reviewed and, where necessary, remediated. ER2 has built-in tools to mark and secure sensitive data found in these matches.

Remediating matches is done in two phases:

  1. Review Matches
  2. Remedial Action

Review Matches

When matches are found during a scan, they are displayed in the Remediation page as match locations. To help you review these matches, the Remediation page displays:

List of Matches

You can view a list of matches from a specified target and evaluate the remediation options.

To view the list of matches:

  1. Log into the Web Console.
  2. Expand the navigation menu, ENTERPRISE RECON er2-hamburger.png. Go to the TARGETS page.
  3. On the TARGETS Page, click on a Target to go to the Target details page.
  4. (Optional) Sort the list of displayed matches by:
    • Location: Full path of the match location.
    • Owner: User with Owner permissions.
    • Types: Number of matches and test data.
  5. Click on a match to bring up the match inspector window. Match inspector window displaying the list of matches, match details and encoding for a location.

    Component Description
    Data type matches Displays the list of matches detected in the match location, sorted by data type.
    Match details Displays samples and contextual data for the match. Click on View all info to see the metadata and a breakdown of data type matches for the match location.
    Match sample encoding Select the encoding format to use for displaying contextual data for the match.
    Encoding options: Plain text (ASCII), EBCDIC (used in IBM mainframes), Hexadecimal.

Match Filter

You can filter matches by entering a search criteria or selecting an option in the Filter sidebar.

To filter matches:

  1. On the top-right hand of the Target details page, click Filter to display the Filter sidebar.
  2. On the left of the page, the Filter section displays matches found in the Target location sorted by type.
    To filter your view, select one or more match types to be displayed. Select data type filters to view locations with Cardholder Data, Test Data or Other Data in the Target details page.

    Remediate Specific Data Types

    Apply data type filters to remediate specific data types for a selected match location.

    For example, File A has one Personal Names (English) and two Mastercard matches. Only Mastercard matches will be remediated if Mastercard is the only data type filter that was selected when remedial action was taken.

    If no data type filters are selected, all data type matches will be remediated for a selected match location.

Trash Scan Results

You can use the Trash function to remove scan results for specific data types from a Target.

Using the Trash button to remove scan results does not delete the actual match data on the Target. If no remedial action was taken, the scan results that were removed would be detected as match locations if a scan is executed again on the Target.

To remove scan results from a Target:

  1. On the top-right hand of the Target details page, click Filter to display the Filter sidebar.
  2. In the Filter section on the left of the page, select one of more data types.
  3. Click the Trash button Trash button to remove scan results for selected match locations or data types. to remove scan results for the selected data types.
The Trash feature removes scan results across all match locations for data types that are selected using the data type filter. The Trash feature is not applicable if:

  • One or more match locations are selected for remediation.
  • One or more Advanced Filters are selected.
  • Match locations are filtered using the Search Location function.

To display a list of matches based on a search term:

  1. On the top-right hand of the Target details page, next to the Filter button; enter a search term to search for in a file name or path.
  2. Press ENTER.

Inaccessible Locations

Inaccessible Locations are files, folders and drives on a Target which cannot be reached during a scan.

On the bottom-left corner of the Target details page, click ⊘ Inaccessible Locations to view a log of these locations. List of Inaccessible Locations with Notice severity for a Target.

Remedial Action

If a match is found to contain sensitive data, ER2 provides tools to report and secure the match location.

Remedial actions are categorized by:

  1. Act directly on selected location: Remedial actions that directly modify match locations to secure your data.
  2. Mark locations for compliance report: Flag these items as reviewed but does not modify the data. These options do not secure your data.

To remediate a match location:

  1. On the Target details page, select the match location(s) that you want to remediate.
  2. Click Remediate and select one of the following actions:
    Remediation Remedial Actions
    Act directly on selected location
    • Mask all sensitive data
    • Quarantine
    • Delete Permanently
    • Encrypt file
    Mark locations for compliance report
    • Confirmed
    • Remediated manually
    • Test Data
    • False Match
    • Remove Mark
    Remediate Specific Data Types

    Apply data type filters to remediate specific data types for a selected match location.

    For example, File A has one Personal Names (English) and two Mastercard matches. Only Mastercard matches will be remediated if Mastercard is the only data type filter that was selected when remedial action was taken.

    If no data type filters are selected, all data type matches will be remediated for a selected match location.

  3. Enter a name in the Sign-off field.
  4. (Optional) Enter an explanation in the Reason field.
  5. Click Ok.

The Target details page displays the results of remedial action taken for match locations in the Status column.

Act Directly on Selected Location

This section lists available remedial actions that act directly on match locations. Acting directly on selected locations reduces your Target’s match count.

Action Description
Mask all sensitive data

Masks all found sensitive data in the match location with a static mask. A portion of the matched strings are permanently written over with the character, "x" to obscure the original. For example, '1234560000001234' is replaced with '123456XXXXXX1234'.

File formats that can be masked include:

  • XPS.
  • Microsoft Office 97-2003 (DOC, PPT, XLS).
  • Microsoft Office 2007 and above (DOCX and XLSX).
  • Files embedded in archives (GZIP, TAR, ZIP).

Not all files can be masked by ER2; some files such as database data files and PDFs do not allow ER2 to modify their contents.

Quarantine

Moves the files to a secure location you specify and leaves a tombstone text file in its place.

By default, tombstone text files will contain the following text: Location quarantined at user request during sensitive data remediation.

For match locations with very small file sizes, the tombstone message may be truncated to ensure the tombstone file size does not exceed the original file size of the match location.
For example, the default tombstone message may be truncated to "Location quarantined at" when Quarantine remedial action is performed on a match location that is 16 bytes in size.

To change the message in the tombstone text file, see Customize Tombstone Message.

Delete permanently

Securely deletes the match location (file) and leaves a tombstone text file in its place.

By default, tombstone text files will contain the following text: Location deleted at user request during sensitive data remediation.

For match locations with very small file sizes, the tombstone message may be truncated to ensure the tombstone file size does not exceed the original file size of the match location.
For example, the default tombstone message may be truncated to "Location deleted at" when Delete permanently remedial action is performed on a match location that is 16 bytes in size.

To change the message in the tombstone text file, see Customize Tombstone Message.

Encrypt file

Secures the match location using an AES encrypted zip file. You must provide an encryption password here.

Customize Tombstone Message

You can customize the contents of the tombstone text file that is left in place of a location that has been remediated using the Quarantine or Delete Permanently methods.

The message in the tombstone text file can be customized to provide useful information when someone tries to access the remediated locations. Separate messages can be configured for Quarantine and Delete Permanently tombstone text files.

You must have Global Admin or System Manager permissions to modify the contents of the tombstone text file.

  1. In the REMEDIATION > TOMBSTONE TEXT EDITOR page, go to the Quarantine Tombstone File or Delete Permanently Tombstone File section.
  2. Click on Edit to customize the message in the tombstone text file. The character limit for the text is 1000.
    Edit or input message for tombstone text file for Quarantine and Delete Permanently remediation methods.
    If an empty tombstone message is saved, the tombstone message will automatically revert back to default ER2 tombstone message. For example, for Quarantine remediation, "Location quarantined at user request during sensitive data remediation".

  3. Once done, click on Save. The new tombstone message will be applicable to all Targets.

Mark Locations for Compliance Report

Flag these items as reviewed but does not modify the data. Hence, the sensitive data found in the match is still not secure.

Action Description
Confirmed Marks selected match location as Confirmed. The location has been reviewed and found to contain sensitive data that must be remediated.
Remediated manually Marks selected match location as Remediated Manually. The location contains sensitive data which has been remediated using tools outside of ER2 and rendered harmless.
Test Data

Marks selected match location as Test Data. The location contains data that is part of a test suite, and does not pose a security or privacy threat.

To ignore such matches in future, you can add a Global Filter when you select Update configuration to classify identical matches in future searches

False match

Marks selected match location as a False Match. The location is a false positive and does not contain sensitive data. You can choose to update the configuration by selecting:

  • Update configuration to classify identical matches in future searches to add a Global Filter to ignore such matches in the future.
  • Update configuration to ignore match locations in future scans on this target to add a Global Filter to ignore this specific location/file when performing subsequent scans.

To send data to Ground Labs to help improve future matches, select Send encrypted false match samples to Ground Labs for permanent resolution.

Remove mark Unmarks selected location.

Remediation Rules

While remediation happens at individual file level, remediation action that can be taken is dependent on both the Target platform and file type.

Platform / File Type Masking Delete Permanently Quarantine Encryption
Unix Share Network File System
FileA.ppt
FileB.pdf -

The table above describes the supported remediation actions that act directly on location for a Unix Share Network File System (NFS) Target and two file types (File A.ppt and FileB.pdf).

File A.ppt is found as a match during a scan of a Unix Share NFS, therefore the all remediation action that act directly on locations are possible for File A.ppt. FileB.pdf is another match location found on a Unix Share NFS, therefore it can be remediated via deletion, encryption or quarantine.

If both File A.ppt and FileB.pdf are selected for remediation, the possible remedial actions that can be taken are Delete Permanently, Quarantine or Encryption.

Remediation Log

The Remediation Log captures all remedial actions taken on a given Target.

Remediation Log displaying the details for remediated match locations on MY-UBUNTU-MACHINE.

To view the remediation log:

  1. Go to the Target details page.
  2. On the bottom-right corner of the page, click Remediated Logs.

You can sort remediation logs by:

Property Description
Location Location of file that has had remedial action taken.
Remediation Status Indicates whether the file has been successfully remediated.
Match Count The number of matches in the file.
Timestamp Month, day, year, and time of the remedial event.
Sign-off Text entered into the Sign-off field when remedial action is taken.
ER2 uses two properties to log the source of remedial action: the Sign-off, and the name of the user account used. The name of the user account used for remediation is not displayed in the Remediation Logs, but is still recorded and searchable in the Filter by… panel.

In the Filter by… panel, you can filter remediation logs by:

Field Description
Date Set a range of dates to only display logs from that period.
User Display only Remedial events from a particular user account. Use the following format for
  • Manually added users: <username>
  • Users imported using the Active Directory Manager: <domain\username>
Reverse order By default, the logs display the newest remedial event first; check this option to display the oldest event first.
↺ Reset Filters Click this to reset filters applied to the logs.
Export Log Saves the filtered results of the Remediation Logs to a CSV file.