Abstract: Network fraud has become the main form of crime in the current society, and has formed a complete criminal industry chain. In order to achieve the goal,the criminal suspect constantly uses all kinds of new technology,new equipment and new means of payment,whhich bring great difficulties to the case investigation.The article makes a detailed analysis of the encryption agent Internet technology,,group call technlogy and money laundering methods, and analyzes how they use technology and tools to infringe upon the people and avoid investigation.Meanwhile, it also makes a preliminary exploration on the forensic and investigation of the these new means and equipment,which plays a role in attracting valuable information. Especially for the current main application equipment GOIP of network fraud,the article makes a more detailed analysis from the perspective of network structure,equipment charctteristics and forensic analysis and so on.

摘要： 电话群呼诈骗是网络诈骗的一种主要形式，给群众带来巨大的经济损失，造成极大的社会不良影响。犯罪嫌疑人为了达到目的，不断利用各种新技术、新手段和新设备，给案件侦办带来极大困难。本文就其所利用的GOIP设备及其网络构架、设备特点和取证分析多个角度进行了详细分析，并对执法工作中出现的疑难现象进行技术剖析，最后总结了针对此类诈骗案件的调查、取证和预防工作的思路。