Deciphering Digital Forensics: Unraveling the Process of Evidence Collection
Introduction:
Welcome to the third edition of our blog on digital forensics series. In our previous blog we discussed the difference between copying, cloning, and imaging in the context of Digital Forensics, and found out why imaging is a better process. Today we will discuss the process of evidence collection in Digital Forensics. The whole process starts with making sure the evidence collection team has all necessary tools required for the task.
Investigating Tools and Equipment:
Below are some mentioned tools that the team should carry with them for a successful evidence collection:
- Anti-static bags
- Faraday bags
- Toolkit having screwdrivers(nonmagnetic), scissors, pins, cutters, forceps, clips etc.
- Rubber gloves
- Incident response toolkit (Software)
- Converter/Adapter: USB, SATA, IDE, SCSI
- Imaging software
- Volatile data collection tools (FTK Imager, Magnet Forensics RAM Capture)
- Pens, permanent markers
- Storage containers
- Batteries
- Video cameras
- Note/sketch pads
- Blank storage media
- Write-Blocker device
- Labels
- Crime scene security tapes
- Camera
What sources of Data are necessary for Digital Evidence?
- Hard-Drive (Desktop, Laptop, External, Server)
- Flash Drive
- SD Cards
- Floppy Disks
- Optical Media (CD, DVD)
- CCTV/DVR
- Internal Storage of Mobile Device
- GPS (Mobile/Car)
- Call Site Track (Towers)
- RAM
Evidence Collection
The investigators encounter two primary types of evidence during the course of gathering evidence: non-electronic and electronic evidence.
The following approaches could be used to gather non-electronic evidence:
- In the course of looking into electronic crimes, recovering non-electronic evidence can be extremely important. Be cautious to make sure that this kind of evidence is retrieved and kept safe. Items that may be relevant to a later review of electronic evidence include passwords, papers or printouts, calendars, literature, hardware and software manuals, text or graphical computer printouts, and photos. These items should be secured and kept for further examination.
- They are frequently found close to the computer or other related hardware. Locating, securing, and preserving all evidence is required by departmental procedures.
Three scenarios arise for the collection of digital evidence from computers:
Situation 1: The desktop is visible, and the monitor is on.
- Take a picture of the screen and note the data that is visible.
- Utilize tools for memory capturing to gather volatile data.
- Look for virtual disks. If so, gather mounted data's logical copies.
- Give each port and connection a label.
- Take a picture of them.
- Turn off network access to stop remote access.
- Cut off the power or turn it off.
- Locate and disconnect the hard drive by opening the CPU chassis.
- Take all evidence and place it in anti-magnetic (Faraday) bags.
- Deliver the evidence to the forensic lab.
- Keep the chain of custody intact.
Situation 2: The monitor is turned on, but it either has a blank screen (sleep mode) or an image for the screensaver.
- Make a small mouse movement (without pressing buttons). The work product should appear on the screen, or it should ask for a password.
- If moving the mouse does not result in a change to the screen, stop using the mouse and stop all keystrokes.
- Take a picture of the screen and note the data that is visible.
- Use memory capturing tools to gather volatile data (always use a write blocker to prevent manipulation during data collection).
- Proceed further in accordance with Situation 1.
Situation 3: The Monitor Is Off
- Write down the "off" status.
- After turning on the monitor, check to see if its status matches that of situations 1 or 2 above, and then take the appropriate action.
- Using a phone modem, cable, confirm that you are connected to the outside world. Try to find the phone number if there is a connection to the phone.
- To protect evidence, take out the floppy disks that might be there, package each disk separately, and label the evidence. Put in a blank floppy disk or a seizure disk, if one is available. Avoid touching the CD drive or taking out CDs.
- Cover the power connector and every drive slot with tape.
- Note the serial number, make, and model.
- Take a picture of the computer's connections and make a diagram with the relevant cables.
- To enable precise reassembly at a later date, label all connectors and cable ends, including connections to peripheral devices. Put "unused" on any connection ports that are not in use. Recognize docking stations for laptop computers in an attempt to locate additional storage media.
- All evidence should be seized and placed in anti-magnetic (Faraday) bags.
- All evidence should be seized and placed in anti-magnetic (Faraday) bags.
- Put a tag or label on every bag.
- Deliver the evidence to the forensic lab.
- Keep the chain of custody intact.
Following the effective gathering of data, the following steps in the process are crucial: data packaging, data transportation, and data storage.
The following are the steps involved in data packaging, transportation, and storage:
Packaging:
- Label every computer system that is gathered so that it can be put back together exactly as it was found
When gathering evidence at a scene of crime,
- Before packing, make sure that every piece of evidence has been appropriately labeled and documented.
- Latent or trace evidence requires particular attention, and steps should be taken to preserve it.
- Use paper or antistatic plastic bags for packing magnetic media to prevent static electricity. Do not use materials like regular plastic bags (instead use faraday bags) that can cause static electricity.
- Be careful not to bend, fold, computer media like tapes, or CD-ROM.
- Make sure that the labels on every container used to store evidence are correct.
Transporting
- Make sure devices are not packed in containers and are safely fastened inside the car to avoid shock and excessive vibrations. Computers could be positioned on the floor of the car,and monitors could be mounted on the seat with the screen down .
When transporting evidence—
- Any electronic evidence should be kept away from magnetic sources. Radiation transmitters, speaker magnets, and heated seats are a few examples of items that can contaminate electronic evidence.
- Avoid leaving electronic evidence in your car for longer than necessary. Electronic devices can be harmed by extremes in temperature, humidity.
- Maintain the integrity of the chain of custody while transporting any evidence.
Storing
- Evidence should be kept safe and away from extremes in humidity and temperature. Keep it away from dust, moisture, magnetic devices, and other dangerous impurities. Be advised that extended storage may cause important evidence—like dates, times, and system configurations—to disappear. Because batteries have a finite lifespan, data loss may occur if they malfunction. Whenever the battery operated device needs immediate attention, it should be informed to the relevant authority (eg., the chief of laboratory, the forensic examiner, and the custodian of the evidence).
CONCLUSION:
Thus, securing the crime scene to packaging, transportation and storage of data are the important steps in the process of collecting digital evidence in forensic investigations. Keeping the authenticity during the process along with their provenance is critical during this phase. It is also important to ensure the admissibility of evidence in legal proceedings. This systematic approach is essential for effectively investigating and prosecuting digital crimes.
Related Blogs
Executive Summary:
The picture of a boy making sand art of Indian Cricketer Virat Kohli spreading in social media, claims to be false. The picture which was portrayed, revealed not to be a real sand art. The analyses using AI technology like 'Hive' and ‘Content at scale AI detection’ confirms that the images are entirely generated by artificial intelligence. The netizens are sharing these pictures in social media without knowing that it is computer generated by deep fake techniques.
Claims:
The collage of beautiful pictures displays a young boy creating sand art of Indian Cricketer Virat Kohli.
Fact Check:
When we checked on the posts, we found some anomalies in each photo. Those anomalies are common in AI-generated images.
The anomalies such as the abnormal shape of the child’s feet, blended logo with sand color in the second image, and the wrong spelling ‘spoot’ instead of ‘sport’n were seen in the picture. The cricket bat is straight which in the case of sand made portrait it’s odd. In the left hand of the child, there’s a tattoo imprinted while in other photos the child's left hand has no tattoo. Additionally, the face of the boy in the second image does not match the face in other images. These made us more suspicious of the images being a synthetic media.
We then checked on an AI-generated image detection tool named, ‘Hive’. Hive was found to be 99.99% AI-generated. We then checked from another detection tool named, “Content at scale”
Hence, we conclude that the viral collage of images is AI-generated but not sand art of any child. The Claim made is false and misleading.
Conclusion:
In conclusion, the claim that the pictures showing a sand art image of Indian cricket star Virat Kohli made by a child is false. Using an AI technology detection tool and analyzing the photos, it appears that they were probably created by an AI image-generated tool rather than by a real sand artist. Therefore, the images do not accurately represent the alleged claim and creator.
Claim: A young boy has created sand art of Indian Cricketer Virat Kohli
Claimed on: X, Facebook, Instagram
Fact Check: Fake & Misleading
Introduction
India’s digital growth journey has been moving at a tremendous pace. According to MeitY’s report, India’s digital economy is expected to rise to US$ 500 billion by 2025, up from US$ 200 billion in 2019. The digitisation drive that we are experiencing is likely to foster and boost a favourable business environment that will attract rapid investment and augment economic growth across sectors. This will, in turn, compel businesses to adopt digital platforms as solutions to meet customer expectations. Due to accelerated digitisation, cyber risks often deter business growth. Cybercrimes are becoming more rampant and complex and the costs associated with such breaches are not only increasing but also becoming more systemic.
Development of the Cyber Insurance Landscape
Digitization of businesses started in the 1980s with the use of mainframes. Personal computers entered the game and further modified the landscape from the 2000s along with LANs, the internet and the dot-com boom of the 2000s. In the late 1990s, cyber-insurance was developed as a risk management tool to ensure information security. Coverage was limited, and clients included SMEs in need of insurance to qualify for tenders, or community banks too small to hedge the risks of their online banking operations. The first cyber insurance policy was written in 1997 through AIG, against hacking as a third-party liability policy.
The current trends in the cyber insurance space are focused on the prevention of cyber risks, which by nature are hard to outline and constantly evolving. The result is that the buyers have limited clarity on the types of cyber risks covered under cyber insurance, and even lesser visibility on the scope and amount of optimum coverage. Unfamiliarity with the claim procedure and resolutions, ambiguous claim thresholds during settlements, and confusion around exclusions and coverage of regulatory fines and penalties under a purchased scheme further discourage potential buyers from seriously investing in cyber insurance products.
Key Factors in Cyber Insurance Evolution and Its Role in Risk Management
The cyber insurance market in India has three key influencing factors, namely the speed of achieving digital maturity, government initiatives to digitise and enforce stringent cyber laws, and the evolving landscape with technology giants and MNCs entering the cyber insurance domain. The latter are the catalyst for intensifying competition in this market.
Advancements in technology in terms of AI, machine learning, big data, robotics, blockchain, augmented and virtual reality, and IoT are expected to reshape the insurance industry and help reach untapped audiences in a more digital-forward manner. With the absence of a standard cyber insurance policy, regulators need to take the following variables into consideration while developing cyber insurance policies: the risk insured against, the scope of the loss covered and the limits/ sub-limits.
Challenges
With the complexity of cyber risks increasing exponentially the challenges to counter the same are growing too which is leading to gaps in the coverage offered for cyber threats. Resultantly, the compliance regulations are dependent on the risks which exist and cyber threat actors adopt new technologies faster and exploit them to their benefit. A lack of historical data and predictability in future cyber risks, the possibility of large overwhelming loss events, uncertainties among market participants about what is specifically covered under such policies, and legal battles over fundamental issues are some of the challenges identified.
Future Outlook/ Recommendations
India's cyber infrastructure requires a multi-faceted approach that involves collaboration between government, industry, and academia should be developed. Some recommendations are:
- Risk assessments should be a general practice and the cyber insurance policies should be simplified, clearing the mismatch between the premium paid and insurance coverage and there should be standard verbosity across cyber policy language.
- Promoting R&D tailored to India focused on education programs that have public-private partnerships and global collaborations to share threat intelligence, best practices, and expertise in critical infrastructure protection.
- Cyber insurance can also be promoted as compliance with the DPDP Act, which would lead to better development of cyber infrastructure and cyber hygiene practices.
- Regular updates to cyber insurance policies to ensure relevance and effectiveness. Insurers could create and offer holistic cyber insurance risk management plans.
Conclusion
According to a report by Deloitte in 2023, the cyber insurance market in India is expected to grow by 27-30 per cent in the coming years and it is currently valued at USD 50-60 million, while maintaining a steady 27-30 per cent CAGR in the past three years. The Indian cyber infrastructure’s nature is challenging, however, it offers opportunities for growth, innovation, and collaboration. A proactive approach, supported by robust policies, advanced technologies, and skilled professionals, will be essential to building a resilient cyber infrastructure capable of withstanding evolving threats.
Reference
- https://www2.deloitte.com/content/dam/Deloitte/nl/Documents/financial-services/deloitte-nl-fsi-demystifying-cyber-insurance-coverage-report.pdf
- https://www.dnaindia.com/business/report-what-s-cyber-liablity-insurance-and-why-you-may-need-it-2136556
- https://economictimes.indiatimes.com/industry/banking/finance/insure/cyber-insurance-gains-momentum-in-india-set-to-witness-exponential-growth-deloitte/articleshow/104189297.cms?from=mdr
Introduction
The Department of Telecommunications (DoT) has launched the 'Digital Intelligence Platform (DIP)'and the 'Chakshu' facility on the Sanchar Saathi portal to combat cybercrimes and financial frauds. Union telecom, IT and railways minister Ashwini Vaishnaw announced the initiatives, stating that the government has been working to counter cyber frauds at national, organizational, and individual levels. The Sanchar Saathi portal has successfully tackled such attacks, and the two new portals will further enhance the capacity to check any kind of cyber security threat.
The Digital Intelligence Platform is a secure and integrated platform for real-time intelligence sharing, information exchange, and coordination among stakeholders, including telecom operators, law enforcement agencies, banks, financial institutions, social media platforms, and identity document issuing authorities. It also contains information regarding cases detected as misuse of telecom resources.
The 'Chakshu' facility allows citizens to report suspected fraud communication received over call, SMS, or WhatsApp with the intention of defrauding, such as KYC expiry, bank account/payment wallet/SIM/gas connection/electricity connection, sextortion, impersonations a government official/relative for sending money, and disconnection of all mobile numbers by the Department of Telecommunications.
The launch of these proactive initiatives or steps represents another significant stride by the Ministry of Communications and the Department of Telecommunications in combating cybersecurity threats to citizens' digital assets.
In this age of technology, there is a reason to be concerned about the threats posed by cybercrooks to individuals and organizations. The risk of using digital means for communication, e-commerce, and critical infrastructure has increased significantly. It is important to have proper measures in place to prevent cybercrime and destructive behavior. The Department of Telecommunication has unveiled "Chakshu," a digital intelligence portal aimed at combating cybercrimes. This platform seeks to enhance the country's cyber defense capabilities by providing enforcement agencies with effective tools and actionable intelligence for countering cybercrimes, including financial frauds.
Digital Intelligence Platform (DIP)
Digital Intelligence Platform (DIP) developed by the Department of Telecommunications is a secure and integrated platform for real-time intelligence sharing, information exchange and coordination among the stakeholders i.e. Telecom Service Providers(TSPs), law enforcement agencies (LEAs), banks and financial institutions(FIs), social media platforms, identity document issuing authorities etc. The portal also contains information regarding the cases detected as misuse of telecom resources. The shared information could be useful to the stakeholders in their respective domains. It also works as a backend repository for the citizen-initiated requests on the Sanchar Saathi portal for action by the stakeholders. The DIP is accessible to the stakeholders through secure connectivity, and the relevant information is shared based on their respective roles. However, the platform is not accessible to citizens.
What is Chakshu?
Chakshu, which means “eye” in Hindi, is a new feature on the Sanchar Saathi portal. This citizen-friendly platform allows you to report suspicious communication you receive via calls, SMS, or WhatsApp. “Chakshu” is a new advanced tool to safeguard against modern-day cybercriminal activities. Chakshu is a sophisticated design that uses the latest technologies for assembling and analyzing digital information and provides law enforcement agencies with useful data on what should be done next. Below are some of its attributes.
Here are some examples of what you can report:
- Fraudulent messages claiming your KYC (Know Your Customer)details need to be updated.
- Fraudulent requests to update your bank account, payment wallet, or SIM card details.
- Phishing attempts impersonating government officials or relatives asking for money.
- Fraudulent threats of disconnection of your sim connections.
How Chakshu Aims to crackdown Cybercrime and Financial Frauds
Chakshu is a new tool on the Sanchar Saathi platform that invites individuals to report suspected fraudulent communications received by phone, SMS, or WhatsApp. These fraudulent activities may include attempts to deceive individuals through schemes such as KYC expiry or update requests for bank accounts, payment wallets, SIM cards, gas connections, and electricity connections, sextortion, impersonation of government officials or relatives for financial gain, or false claims of mobile number disconnection by the Department of Telecommunications.
The tool is well-designed and equipped to help the investigators with actionable intelligence and insights, enabling LEAs to conduct targeted investigations on financial frauds and cyber-crimes; the tool helps in gathering a comprehensive data analysis and evidence collection capability by mapping out the connection between individuals, organizations and illicit activities, it, therefore, allows the law enforcement agencies in dismantling criminal activities and help the law enforcement agencies.
Chakshu’s Impact
India has launched Chakshu, a digital intelligence tool that strengthens the country's cybersecurity policy. Chakshu employs modern technology and real-time data analysis to enhance India's cyber defenses. Law enforcement can detect and neutralize possible threats by taking proactive approach to threat analysis and prevention before they become significant crises. Chakshu also improves the resilience of critical infrastructure and digital ecosystems, safeguarding them against cyber-attacks. Overall, Chakshu plays an important role in India's cybersecurity posture and the protection of national interests in the digital era.
Where can Chaksu be accessed?
Chakshu can be accessed through the government's Sanchar Saathi web portal:https://sancharsaathi.gov.in
Conclusion
The launch of the Digital Intelligence Platform and Chakshu facility is a step forward in safeguarding citizens from cybercrimes and financial fraud. These initiatives use advanced technology and stakeholder collaboration to empower law enforcement agencies. The Department of Telecommunications' proactive approach demonstrates the government's commitment to cybersecurity defenses and protecting digital assets, ensuring a safer digital environment for citizens and critical infrastructure.
References
- https://telecom.economictimes.indiatimes.com/news/policy/dot-launches-digital-intelligence-portal-chakshu-facility-to-curb-cybercrimes-financial-frauds/108220814
- https://bankingfrontiers.com/digital-intelligence-platform-launched-to-curb-cybercrime-financial-fraud/
- https://www.business-standard.com/india-news/calcutta-hc-justice-abhijit-gangopadhyay-sends-his-resignation-to-prez-cji-124030500367_1.html
- https://www.the420.in/dip-chakshu-government-launches-powerful-weapons-against-cybercrime/
- https://pib.gov.in/PressReleaseIframePage.aspx?PRID=2011383
