Introduction
In Computer forensics investigation, Our Expert Team Analyse, Collect and Preserve evidence from specific computing device in a way, which is appropriate for presentation in court of law. In Computer Forensics, we can find the evidence from different techniques such as:
Live Box Forensics
In Live Box Forensics, we analyze the volatile memory of the machine to carve out corroborating evidence. We can find out various evidence in our service as listed:
- Process List: We will find out any actively utilized information or any data by system program or hardware device will run via system's RAM at time it is being utilized. It is mainly used in the Malware Analysis.
- Credential Details: While doing the RAM analysis, we get all the credentials of on-going process. To be clear let us consider an example if I am working on Gmail and did not logout the account. Then, from the RAM dump, we can get all the credentials. All the credentials will be preset in plain-text format.
- Instant Chat Details: From the Live Box Forensics, we can get all the details of few instant chat messages such as of Hangout, Facebook, Email Headers, etc. It makes easy to find out all the traces to execute the investigation.
Dead Box Forensics
In Dead Box Forensics, we acquire the exact copy of hard drive; this particular methodology is referred to as dead-box forensics.
- Recover Deleted Data: We retrieve all the normally deleted and permanently deleted (shift + del) data in its exact form. All the data integrity is preserved in exact form after recovering. It helps to trace all the evidence in its original form.
- Trace of USB Device: We keep the records of diversity of changes of hardware to system, including first time a USB drive was connected to a system. We have the records of material about drivers used, and series of USB drive that is unique.
Current Challenges In Computer Forensics
Encrypted data is impossible to preview without any correct key or password. Investigators must consider that key or password must be saved elsewhere on machine that suspect had access. It may also be there in the volatile memory of computer that is typically lost when the machine gets shut-down or due to other reason.
Storage media holds a greater amount of data that the investigator means that their system analysis require to have adequate processing power as well as existing storage capacity to professionally deal with searching along with analyzing large amount of data.
Computing is repeatedly growing field, with new hardware, software, and Operating systems developing constantly. No any single computer forensic investigator can be an expert on all the arenas, yet they may often be likely to analyze something that they have not encountered. In way to deal with such situation, the examiners must be ready and able to check as well as experiment with behavior of new technologies.
Stages of Computer Forensic Examination
We have divided Computer Forensic examination procedure into Five stages.
- Readiness : Forensic readiness is vital and frequently overlooked stage in examination process. In commercial computer forensics, it can include educating clients about the machine preparation.For the forensic examiner, readiness will consist of appropriate training, familiarity with legislation, steady testing and confirmation of their software and equipment, dealing with unexpected issues and ensuring that on-site acquisition kit is complete and in working order.
- Evaluation : The evaluation stage comprises receiving of instructions, the clarification of all those instructions if unclear or any ambiguous, risk analysis and allocation of roles as well as resources. Risk analysis for the law enforcement may covers up an assessment on likelihood of physical threat on ingoing a suspect’s property and the best to counter it.
- Collection : The collection stage contains the labelling as well as bagging of evidential items from site, to be sealed in added tamper-evident bags. Consideration must be given to safely transporting of the material to investigator’s laboratory.
- Analysis : There are countless tools present for computer forensics analysis. It is the opinion, which an examiner should utilize, as they feel comfortable with. The main necessities of computer forensic software is that it does what it is meant to do and only way for investigators to be sure of this is for them to frequently test and standardize the tools before analysis takes place.
- Presentation : This stage mainly includes the examiner producing organized report on their findings, addressing all points in initial instructions along with any subsequent instructions. It may also cover any other information that an examiner seems relevant in the investigation.
Importance of Chain of Custody
The chain of custody is a Chronological Documentation for an evidence in a specific case. It is mainly important with an electronic evidence because of the chance of fraudulent data alteration, deletion, or creation. In the computer forensics, you want a fully thorough chain of custody report in manner to show physical custody of piece of evidence and show that all the parties, which had used to said evidence at any of the given time.
Acquire Forensics provides chain of custody reports for all the Computer Forensic cases, and we powerfully recommend keeping all these documents for all types for legal proceedings.
Frequently Asked Questions
Solution: There are various electronic data, which are considered as an evidence like email, web mail, plain text, documents, images, calendar files, spreadsheets, digital fixes, video files, etc.
Solution: There is a systematic way of finding an evidence as mentioned:
- Acquire an evidence by creating the forensic image
- Index as well as catalogue the evidence
- Analyze the complete data (evidence)
- Save the evidence to the viewable drive
- Present the report of findings to the client
Solution: It depends upon the type of case and requirement of evidence as well.
