Guidance Software, Inc.

Open Text Holdings, Inc.

Dominik Weber

Shawn McCreight

Matthew Garrett

Rajesh Sharma

Claudiu Teodorescu

A method, apparatus and system for secure forensic investigation of a target machine by a client machine over a communications network. In one aspect the method comprises establishing secure communication with a server over a communications network, establishing secure communication with the target machine over the communications network, wherein establishing secure communication with the target machine includes establishing secure communication between the server and the target machine, installing a servelet on the target machine, transmitting a secure command to the servelet over the communications network, executing the secure command in the servelet, transmitting data, by the target machine, in response to a servelet instruction, and receiving the data from the target machine over the communication network.

System and method for conducting searches at target devices

A system and method for processing data stored in data storage devices is described. A computing processor acquires blocks of data from a target machine and computes an entropy value associated with each block of the acquired data. The computing processor checks the entropy values of each block to determine whether or not the particular block is deemed to contain useful data, before that block is analyzed.

Systems and methods for processing data stored in data storage devices

A method, apparatus and system for secure forensic investigation of a target machine by a client machine over a communications network. In one aspect the method comprises establishing secure communication with a server over a communications network, establishing secure communication with the target machine over the communications network, wherein establishing secure communication with the target machine includes establishing secure communication between the server and the target machine, installing a servelet on the target machine, transmitting a secure command to the servelet over the communications network, executing the secure command in the servelet, transmitting data, by the target machine, in response to a servelet instruction, and receiving the data from the target machine over the communication network. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

Enterprise computer investigation system

A password-based key derivation function includes a sub-function that gets executed multiple times based on an iteration count. A key derivation module computes the iteration count dynamically with each entered password. The iteration count is computed as a function of the password strength. Specifically, the weaker the password, the higher the iteration count; but the stronger the password, the smaller the interaction count. This helps strengthen weaker passwords without penalizing stronger passwords.

Password key derivation system and method

A system and method for an entropy-based near-match analysis identifies target files that are almost, but not identical, to a reference file. A computing processor computes entropies of the reference and target files, and determines the likeness of the target files to the references file based on the computed entropies. The computing processor determines a near match between the target file and the reference file if the likeness of the two files is within a user-defined tolerance level. According to one embodiment of the invention, the information entropy is a weighted value that takes into account the size of the file.

System and method for entropy-based near-match analysis

An indexing engine generates a full text index of English and non-English files provided to the indexing engine. The indexing engine receives an input file for indexing, and normalizes the unique words contained in the input file. The normalizing includes stripping the words of any diacritical marks, taking into account different multilingual issues, case folding the words into lowercase, and the like. The normalized words are stored in a dictionary, and a word record is generated for each stored word. Each word record includes a flag that indicates whether one or more variations exist in the input file for the normalized word. One or more tables store information on the variations for the normalized words. When a query engine is invoked to search for an input query word, the variations are searched only if the user has set an option to consider such variations.

System and method for building and retrieving a full text index

A system and method for concurrent investigations of static data stored in one or more secondary storage devices of one or more target machines in a data communications network. The network includes an examining machine, a secure server, and various target machines. The examining machine transmits to the target machines a search request including a search key. The examining machine also streams to each target machine metadata information and file extents of the files to be searched. The target machines concurrently search the indicated file extents for the search key. The target machines then stream the search results to the examining machine.

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Los Angeles, CA, United States of America

Dominik Weber