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Content Filtering
Definition
Content Filtering techniques aid in the process of analyzing an input file for malicious or erroneous content and outputing a sanitized version.
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Technique Subclasses
There are 14 techniques in this category, Content Filtering.
| Name | ID | Definition | Synonyms |
|---|---|---|---|
| Content Filtering | D3-CF | Content Filtering techniques aid in the process of analyzing an input file for malicious or erroneous content and outputing a sanitized version. | |
| - Content Modification | D3-CM | Modify content that does not comply with policy. | |
| - Content Quarantine | D3-CQ | Transfer content that does not comply with policy to a quarantine zone. | |
| - Content Validation | D3-CV | Verify and validate contents complies with policy | |
| - Content Excision | D3-CNE | Removing specific, potentially malicious, parts of content | |
| - Content Format Conversion | D3-CFC | Content format conversion is mechanical transformation from one format to another which may be normalization or specifically flattening. | |
| - Content Rebuild | D3-CNR | Rebuild the file according to the spec so any unreferenced components or objects are removed. | Content Reconstruction |
| - Content Substitution | D3-CNS | Modifies specific digital content information by replacing it with something else. | |
| - File Format Verification | D3-FFV | Verifying that a file conforms to its expected format specifications | |
| - File Content Decompression Checking | D3-FCDC | Checking if compressed or encoded data sections can be successfully decompressed or decoded. Can follow with further analysis with semantic knowledge | |
| - File Internal Structure Verification | D3-FISV | The process of checking specific static values within a file, such as file signatures or magic numbers, to ensure they match the expected values defined by the file format specification. | |
| - File Metadata Consistency Validation | D3-FMCV | The process of validating the consistency between a file's metadata and its actual content, ensuring that elements like declared lengths, pointers, and checksums accurately describe the file's content. | |
| - File Metadata Value Verification | D3-FMVV | The process of checking specific static values within a file, such as file signatures or magic numbers, to ensure they match the expected values defined by the file format specification. | |
| - File Magic Byte Verification | D3-FMBV | Utilizing the magic number to verify the file |
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References
All
Patent
The following references were used to develop the Content Filtering knowledge-base article.
(Note: the consideration of references does not imply specific functionality exists in an offering.)
Method For Content Disarm and Reconstruction
Reference Type: Patent Organization: OPSWAT, Inc. Author: Taeil Goh, Vinh Nguyen Xuan Lam, Nhut Minh Ngo, Dung Huu Nguyen
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