International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 01 | Jan 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 894 Active Chat Monitoring and Suspicious Detection over Internet M. Brindha 1 , V. Vishnupriya 2 , S. Rohini 3 , M. Udhayamoorthi 4 , K.S.Mohan 5 1,2,3 UG Scholars, Department of IT,SNS College of Technology,Coimbatore,Tamilnadu,India 4,5 Assistant Professor, Department of IT, SNS College of Technology, Coimbatore, Tamilnadu, India ---------------------------------------------------------------------***---------------------------------------------------------------------- Abstract - With the increasing use of Instant Chat Messengers to share information, suspicious activities has also increased. There are many sources to share the information but instant chat messengers and social networking websites are the quick and easy means to share anything. Sometimes, even new stories are initially broken up on social media sites and further on chat messengers instead of any news channel and newspaper etc. Due to these technology advancements, some people are misusing these instant chat messengers to share suspicious activities and make plans to do something suspicious. This kind of chat is mainly available in textual format. With the advancement of internet technology and the change in the mode of communication, it is found that much first-hand news has been discussed in Internet forums well before they are reported in traditional mass media. Also, this communication channel provides an effective channel for illegal activities such as broadcasting of copyrighted movies, threatening messages and online gambling etc. Our proposed System will analyze online plain text sources from selected discussion forums and will classify the text into different groups and system will decide which post is legal and illegal. 1. INTRODUCTION Chat refers to the process of communicating, interacting and/or exchanging messages over the Internet. It involves two or more individuals that communicate through a chat-enabled service or software. Chat may be delivered through text, verbal, communication. Chat is also known as chatting, online chat or Internet chat. Terrorist activities communicate over application and chat programs over internet. It also uses these chat applications over the internet for getting their message to younger generation and making all of types terrorists. The chat monitor system is an important application that could allow for secure chats along with terrorism related chat detection that helps track down spread of terrorist networks and locate the activities using IP addresses. The internet chat application is a dedicated chat application for free internet chat as well as tracking down on spread of terrorism online. Communication provides effective areas for illegal activities such as threatening messages. This system we have produced called as Active Chat Monitoring & Suspicious Chat Detection over Internet which will tackle with these issues. Internet technology had been increasing more. The law looking for solutions to detect these discussion forums for all possible criminal activities and download suspected Postings as evidence for investigation. Active Chat Monitoring System which will tackle with this problem. It has used a data mining algorithm to detect criminal activities, legal and illegal postings. In this system will use text data mining technique. Active Chat Monitoring System will let us help to analyze online plain text sources from selected discussion forums and will classify the text into groups and system will decide which post is legal and illegal accordingly to their points. It will help us to reduce and minimize many criminal activities which are held on social- site such as face book, Twitter, Tinder, etc. 1.1 Existing System Online chat might allude to any sort of correspondence over the Internet that offers a continuous transmission of instant messages from sender to beneficiary. Chat messages are by and large short keeping in mind the end goal to empower different members to react rapidly. Along these lines, an inclination like a talked discussion is made, which recognizes chatting from other content based online correspondence structures, for example, Internet gatherings and email. Online chat might deliver point-to- point correspondences and in addition multicast interchanges from one sender to numerous collectors and voice and video chat, or might be a component of a web conferencing administration. As information goes through server it constantly filters it for any suspicious watchwords. The customary examination of Internet chat room dialogs puts an asset trouble on the knowledge group due to the time required to screen a huge number of persistent chat sessions. 1.2 Proposed System The proposed System will analyze online plain text sources from selected discussion forums and will classify the text into different groups and system will decide which post is legal and illegal. This system will ensures that the admin may not watch all the chat at a time, so in order to stop chatting illegally, the keywords are set by the admin as suspicious words which will be blocked or it cannot be able to view by the other person.  The system to be developed here is a chat facility.  It is a client-server system with centralized database server.