Canada has been no exception to this rash of attacks and Canada’s cyber defence agency has warned that “attacks against critical Canadian business and infrastructure are ‘almost certain’ to continue, as Canada has already seen its systems targeted by such attacks in recent years” (Gilmore, 2020).
The average ransomware payment rose 33% in 2020 to $111,605 USD and the average cost of a ransomware attack on businesses is $133,000 USD (Sobers, 2021).
saw a 139% year-over-year increase to 145.2 million recorded attacks (Help Net Security, 2020). Further, two malware datasets are analyzed using open source tools to perform investigation and present a comprehensive network forensic analysis comprising IO graphs, Flow graphs, TCP stream, UDP multicast stream, mac-based analysis, and operating system analysis.Worldwide news reports of ransomware attacks have become an almost weekly occurrence in recent years and while some countries saw decreases in ransomware attacks over 2020, the U.S. A few open source network forensic tools have been studied and performed a comparative analysis based on six key parameters. The advantages, challenges, and necessities have been identified for network forensic investigation of such tools. In this work, the result of a survey participated by different experts in open source network forensic tools have been presented. There are many network forensic tools, both open source and commercial versions available in the market. Network forensics procedures use processes to expedite investigation by tracking each original packet and event that is generated in the network. Technological improvements have enabled criminals to wipe out tracks of cybercrime to elude alterations. These tools are used to monitor internal and external network attacks. Network forensic tools enable security professionals to monitor network performance and compromises.
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