Network Packet Filter

**Purpose **The goal is to protect email applications running on the local machine from malicious email over the SMTP and POP3 protocols. We need to build a filter with the goal of scanning and blocking potentially malicious email traffic over the SMTP and the POP3 protocol on the local machine. **Features & Functionality** **1-** Scan for POP3 and SMTP mail packets **2-** Call into an API of an already developed AV engine and provide full packet info. **3-** Based on AV engine response, determine whether to block the packet or allow it to continue up the stack. **4-** Filter must be able to communicate with user-mode applications. **5-** Filter must run all the time, or run anytime an application attempts to read SMTP or POP3 email. **6-** Filter must have some configuration mechanism. **7-** Must be fully tested on all windows platforms from win9x through WinXP **Additional Requirements 1-** There will be 3 monthly milestones with bi-weekly checkpoints. **2-** The deliverables for each milestone will be determined before project start. **3-** I will provide a Subversion source control server against which you will need to do your daily checkins. **4-** Winning bidder will need to be on this project fulltime and must give this project top priority. **5-** Winning bidder must have demonstarted ability and proven track record writing NDIS driver level code as well as winsock-level filters, with extensive understanding and experience in network programming at the ip stack level. **6-** All bidders must provide an implementation recommendation for whether to build this at the winsock layer or at the NDIS driver level, and provide a break down of the pros and cons of each approach. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). * * *This broadcast message was sent to all bidders on Sunday Jun 26, 2005 8:51:43 AM: Hello all, Just updated my bid request. Please take a look and adjust your bids as needed. thanks -saed ## Platform Windows 95 Windows 98 Windows ME Windows NT Windows 2000 WindowsXP