title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¿ÑÐ¾ÐºÑÐ¸-ÑÐµÑÐ²ÐµÑÐ° Ð´Ð»Ñ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÑÐ°ÑÐ¸ÐºÐ° Ð¿ÑÐ¾ÑÐ¾ÐºÐ¾Ð»Ð° POP3
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Development of a proxy server for analyzing POP3 protocol traffic
Creators: name: ÐÐ¾ÑÐ¾Ð², ÐÐ²Ð°Ð½
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: Ð¿ÑÐ¾ÐºÑÐ¸-ÑÐµÑÐ²ÐµÑ
Ð°Ð½Ð°Ð»Ð¸Ð· ÑÑÐ°ÑÐ¸ÐºÐ°
Ð¿ÑÐ¾Ð²ÐµÑÐºÐ° ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾Ð¹ Ð¿Ð¾ÑÑÑ
proxy server
traffic analysis
email checking

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐµ Ð¿ÑÐ¾ÐºÑÐ¸-ÑÐµÑÐ²ÐµÑÐ° Ð´Ð»Ñ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð¿Ð¾ÑÑÑ, Ð¿ÐµÑÐµÐ´Ð°Ð²Ð°ÐµÐ¼Ð¾Ð¹ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¿ÑÐ¾ÑÐ¾ÐºÐ¾Ð»Ð° POP3, ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÑÑÐµÐ³Ð¾ ÑÐ¿ÐµÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸ RFC 1939, RFC 2449. ÐÐ°Ð´Ð°ÑÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐµÑÐ°Ð»Ð¸ÑÑ Ð² ÑÐ¾Ð´Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ: Â  Â  1. ÐÑÐ±Ð¾Ñ Ð¸ Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ðµ Ð°ÑÑÐ¸ÑÐµÐºÑÑÑÑ Ð¿ÑÐ¾ÐºÑÐ¸-ÑÐµÑÐ²ÐµÑÐ°. Â  Â  2. ÐÐ½Ð°Ð»Ð¸Ð· ÑÐ¿ÐµÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸ Ð¿ÑÐ¾ÑÐ¾ÐºÐ¾Ð»Ð° POP3 Ð¸ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ°Ð·Ð±Ð¾ÑÐ° ÐºÐ¾Ð¼Ð°Ð½Ð´ ÐºÐ»Ð¸ÐµÐ½ÑÐ° Ð¸ Ð¾ÑÐ²ÐµÑÐ¾Ð² ÑÐµÑÐ²ÐµÑÐ° Ð² ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²Ð¸Ð¸ Ñ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ¿ÐµÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸ÐµÐ¹. Â  Â  3. ÐÐ½Ð°Ð»Ð¸Ð· Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½ÑÑ ÑÐ¿Ð¾ÑÐ¾Ð±Ð¾Ð² Ð¿ÑÐ¾Ð²ÐµÑÐºÐ¸ Ð¾Ð±Ð½Ð°ÑÑÐ¶ÐµÐ½Ð½ÑÑ Ð² ÑÑÐ°ÑÐ¸ÐºÐµ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½ÑÑ Ð¿Ð¸ÑÐµÐ¼ Ð¸ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÐµÐ¹ Ð¸Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ. Â  Â  4. ÐÐ¾ÑÑÑÐ¾ÐµÐ½Ð¸Ðµ Ð²ÐµÑÑÐ¸Ð¸ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ñ Ð´Ð»Ñ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ñ ÑÐ°Ð·Ð·Ð¸Ð½Ð³-ÑÐµÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ. Â  Â  5. Ð Ð°Ð·Ð²ÑÑÑÑÐ²Ð°Ð½Ð¸Ðµ ÑÐµÑÑÐ¾Ð²Ð¾Ð¹ ÑÑÐµÐ´Ñ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð´Ð¾ÐºÐµÑÐ°. ÐÐ¾ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ°Ð¼ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ» ÑÐ¾Ð·Ð´Ð°Ð½ Ð¿ÑÐ¾ÐºÑÐ¸-ÑÐµÑÐ²ÐµÑ Ð´Ð»Ñ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾Ð¹ Ð¿Ð¾ÑÑÑ Ð¿ÐµÑÐµÐ´Ð°Ð²Ð°ÐµÐ¼Ð¾Ð¹ Ð¿Ð¾ Ð¿ÑÐ¾ÑÐ¾ÐºÐ¾Ð»Ñ POP3 Ð¿ÑÐ¸ ÑÐ°Ð·Ð·Ð¸Ð½Ð³-ÑÐµÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ð¸ ÐºÐ¾ÑÐ¾ÑÐ¾Ð³Ð¾ Ð¿ÑÐ¸ Ð±Ð¾Ð»ÐµÐµ ÑÐµÐ¼ 50 ÑÐ¸ÐºÐ»Ð°Ñ Ð½Ðµ Ð±ÑÐ»Ð¾ Ð¾Ð±Ð½Ð°ÑÑÐ¶ÐµÐ½Ð¾ Ð½Ð¸ Ð¾Ð´Ð½Ð¾Ð³Ð¾ Ð¿Ð°Ð´ÐµÐ½Ð¸Ñ Ð¸Ð»Ð¸ ÑÐ¾ÑÑÐ°Ð½ÑÐ½Ð½Ð¾Ð³Ð¾ ÑÐ°Ð¹Ð¼Ð°ÑÑÐ° Ð¿ÑÐ¸ Â«ÑÑÐ°Ð±Ð¸Ð»ÑÐ½Ð¾ÑÑÐ¸Â» Ð² 100%. Ð¢Ð°ÐºÐ¶Ðµ Ð±ÑÐ»Ð¾ ÑÐ¾Ð·Ð´Ð°Ð½Ð¾ 3 docker-ÐºÐ¾Ð½ÑÐµÐ¹Ð½ÐµÑÐ° Ð² Ð¾Ð´Ð½Ð¾Ð¹ Ð¿Ð¾Ð´ÑÐµÑÐ¸ ÑÐ¾ ÑÑÐ°ÑÐ¸ÑÐµÑÐºÐ¸Ð¼Ð¸ Ð°Ð´ÑÐµÑÐ°Ð¼Ð¸ Ð½Ð° ÐºÐ¾ÑÐ¾ÑÑÑ Ð±ÑÐ»Ð° Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð° Ð¿ÑÐ¾Ð²ÐµÑÐºÐ° ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ Ð² ÑÐµÐ»ÐµÐ²ÑÑ ÑÑÐ»Ð¾Ð²Ð¸ÑÑ.
description: This work is devoted to the development of a proxy server for analyzing mail transmitted using the POP3 protocol, which complies with RFC 1939 and RFC 2449 specification. The tasks that were solved during the study: 1. Choosing and building a proxy server architecture. 2. Analysis of the POP3 protocol specification and design of a system for parsing client commands and server responses in accordance with this specification. 3. Analysis of possible ways to check detected emails in the traffic and the possibilities of their use. 4. Building a version of the program for fuzzing testing. 5. Deploying a test environment using docker Based on the results of the work, a proxy server was created to analyze e-mail transmitted over the POP3 protocol, during fuzzing testing of which, for more than 50 cycles, not a single drop or saved timeout was detected with "stability" of 100%. Also, 3 docker containers were created in the same subnet with static addresses on which the developed system was checked under target conditions.