Netcat and Trojans/Backdoors
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Cheat Sheet – Common Ports (PDF)
COMMON PORTS packetlife.net TCP/UDP Port Numbers 7 Echo 554 RTSP 2745 Bagle.H 6891-6901 Windows Live 19 Chargen 546-547 DHCPv6 2967 Symantec AV 6970 Quicktime 20-21 FTP 560 rmonitor 3050 Interbase DB 7212 GhostSurf 22 SSH/SCP 563 NNTP over SSL 3074 XBOX Live 7648-7649 CU-SeeMe 23 Telnet 587 SMTP 3124 HTTP Proxy 8000 Internet Radio 25 SMTP 591 FileMaker 3127 MyDoom 8080 HTTP Proxy 42 WINS Replication 593 Microsoft DCOM 3128 HTTP Proxy 8086-8087 Kaspersky AV 43 WHOIS 631 Internet Printing 3222 GLBP 8118 Privoxy 49 TACACS 636 LDAP over SSL 3260 iSCSI Target 8200 VMware Server 53 DNS 639 MSDP (PIM) 3306 MySQL 8500 Adobe ColdFusion 67-68 DHCP/BOOTP 646 LDP (MPLS) 3389 Terminal Server 8767 TeamSpeak 69 TFTP 691 MS Exchange 3689 iTunes 8866 Bagle.B 70 Gopher 860 iSCSI 3690 Subversion 9100 HP JetDirect 79 Finger 873 rsync 3724 World of Warcraft 9101-9103 Bacula 80 HTTP 902 VMware Server 3784-3785 Ventrilo 9119 MXit 88 Kerberos 989-990 FTP over SSL 4333 mSQL 9800 WebDAV 102 MS Exchange 993 IMAP4 over SSL 4444 Blaster 9898 Dabber 110 POP3 995 POP3 over SSL 4664 Google Desktop 9988 Rbot/Spybot 113 Ident 1025 Microsoft RPC 4672 eMule 9999 Urchin 119 NNTP (Usenet) 1026-1029 Windows Messenger 4899 Radmin 10000 Webmin 123 NTP 1080 SOCKS Proxy 5000 UPnP 10000 BackupExec 135 Microsoft RPC 1080 MyDoom 5001 Slingbox 10113-10116 NetIQ 137-139 NetBIOS 1194 OpenVPN 5001 iperf 11371 OpenPGP 143 IMAP4 1214 Kazaa 5004-5005 RTP 12035-12036 Second Life 161-162 SNMP 1241 Nessus 5050 Yahoo! Messenger 12345 NetBus 177 XDMCP 1311 Dell OpenManage 5060 SIP 13720-13721 -
Netcat Starter
www.allitebooks.com Instant Netcat Starter Learn to harness the power and versatility of Netcat, and understand why it remains an integral part of IT and Security Toolkits to this day K.C. Yerrid BIRMINGHAM - MUMBAI www.allitebooks.com Instant Netcat Starter Copyright © 2013 Packt Publishing All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews. Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book. Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information. First published: January 2013 Production Reference: 1170113 Published by Packt Publishing Ltd. Livery Place 35 Livery Street Birmingham B3 2PB, UK. ISBN 978-1-84951-996-0 www.packtpub.com www.allitebooks.com Credits Author Project Coordinators K.C. "K0nsp1racy" Yerrid Shraddha Bagadia Esha Thakker Reviewer Jonathan Craton Proofreader Kelly Hutchison IT Content and Commissioning Editor Graphics Grant Mizen Aditi Gajjar Commissioning Editor Production Coordinator Priyanka Shah Melwyn D'sa Technical Editor Cover Work Ameya Sawant Melwyn D'sa Copy Editor Cover Image Alfida Paiva Conidon Miranda www.allitebooks.com About the author K.C. -
Singularityce User Guide Release 3.8
SingularityCE User Guide Release 3.8 SingularityCE Project Contributors Aug 16, 2021 CONTENTS 1 Getting Started & Background Information3 1.1 Introduction to SingularityCE......................................3 1.2 Quick Start................................................5 1.3 Security in SingularityCE........................................ 15 2 Building Containers 19 2.1 Build a Container............................................. 19 2.2 Definition Files.............................................. 24 2.3 Build Environment............................................ 35 2.4 Support for Docker and OCI....................................... 39 2.5 Fakeroot feature............................................. 79 3 Signing & Encryption 83 3.1 Signing and Verifying Containers.................................... 83 3.2 Key commands.............................................. 88 3.3 Encrypted Containers.......................................... 90 4 Sharing & Online Services 95 4.1 Remote Endpoints............................................ 95 4.2 Cloud Library.............................................. 103 5 Advanced Usage 109 5.1 Bind Paths and Mounts.......................................... 109 5.2 Persistent Overlays............................................ 115 5.3 Running Services............................................. 118 5.4 Environment and Metadata........................................ 129 5.5 OCI Runtime Support.......................................... 140 5.6 Plugins................................................. -
Netcat − Network Connections Made Easy
Netcat − network connections made easy A lot of the shell scripting I do involves piping the output of one command into another, such as: $ cat /var/log/messages | awk '{print $4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15}' | sed −e 's/\[[0−9]*\]:/:/' | sort | uniq | less which shows me the system log file after removing the timestamps and [12345] pids and removing duplicates (1000 neatly ordered unique lines is a lot easier to scan than 6000 mixed together). The above technique works well when all the processing can be done on one machine. What happens if I want to somehow send this data to another machine right in the pipe? For example, instead of viewing it with less on this machine, I want to somehow send the output to my laptop so I can view it there. Ideally, the command would look something like: $ cat /var/log/messages | awk '{print $4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15}' | sed −e 's/\[[0−9]*\]:/:/' | sort | uniq | laptop That exact syntax won't work because the shell thinks it needs to hand off the data to a program called laptop − which doesn't exist. There's a way to do it, though. Enter Netcat Netcat was written 5 years ago to perform exactly this kind of magic − allowing the user to make network connections between machines without any programming. Let's look at some examples of how it works. Let's say that I'm having trouble with a web server that's not returning the content I want for some reason. -
Steering Connections to Sockets with BPF Socket Lookup Hook
Steering connections to sockets with BPF socket lookup hook Jakub Sitnicki, Cloudflare @jkbs0 @cloudflare October 28-29, 2020 Who am I? ● Software Engineer at Cloudflare Spectrum TCP/UDP reverse proxy, Linux kernel, ... ● Contributor to Linux kernel networking & BPF subsystems Goal Run a TCP echo service on ports 7, 77, and 777 … using one TCP listening socket. Fun? We will need… ❏ VM running Linux kernel 5.9+ ❏ bpftool 5.9+ ❏ libbpf headers ❏ kernel headers vm $ uname -r 5.9.1-36.vanilla.1.fc32.x86_64 vm $ bpftool version bpftool v5.9.1 Code and instructions at https://github.com/jsitnicki/ebpf-summit-2020 We will need… a TCP echo server $ sudo dnf install nmap-ncat $ nc -4kle /bin/cat 127.0.0.1 7777 & Netcat + /bin/cat [1] 1289 $ ss -4tlpn sport = 7777 State Recv-Q Send-Q Local Address:Port Peer Address:Port Process LISTEN 0 10 127.0.0.1:7777 0.0.0.0:* users:(("nc",pid=1289,fd=3)) $ nc -4 127.0.0.1 7777 hello⏎ Test it! hello ^D Check open ports on VM external IP vm $ ip -4 addr show eth0 check VM IP 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000 inet 192.168.122.221/24 brd 192.168.122.255 scope global dynamic noprefixroute eth0 valid_lft 2563sec preferred_lft 2563sec host $ nmap -sT -p 1-1000 192.168.122.221 … Not shown: 999 closed ports scan first 1000 ports PORT STATE SERVICE 22/tcp open ssh 7, 77, 777 are closed Nmap done: 1 IP address (1 host up) scanned in 0.07 seconds What is socket lookup? socket receive Application buffer socket Receive path for local delivery lookup Protocol filter INPUT Network raw mangle nat routing conntrack forward PREROUTING PREROUTING PREROUTING decision TC Ring alloc_skb XDP ingress Buffer Driver Wikipedia - Packet flow in Netfilter and General Networking Service dispatch with BPF socket lookup packet metadata BPF program lookup result struct bpf_sk_lookup { (1) 010 (4) __u32 family; 101 Ncat socket 010 __u32 protocol; __u32 remote_ip4; (2) is (3) pick __u32 remote_port; local port echo service __u32 local_ip4; open? socket __u32 local_port; /* .. -
Major Qualifying Project
Network Anomaly Detection Utilizing Robust Principal Component Analysis Major Qualifying Project Advisors: PROFESSORS LANE HARRISON,RANDY PAFFENROTH Written By: AURA VELARDE RAMIREZ ERIK SOLA PLEITEZ A Major Qualifying Project WORCESTER POLYTECHNIC INSTITUTE Submitted to the Faculty of the Worcester Polytechnic Institute in partial fulfillment of the requirements for the Degree of Bachelor of Science in Computer Science. AUGUST 24, 2017 - MARCH 2, 2018 ABSTRACT n this Major Qualifying Project, we focus on the development of a visualization-enabled anomaly detection system. We examine the 2011 VAST dataset challenge to efficiently Igenerate meaningful features and apply Robust Principal Component Analysis (RPCA) to detect any data points estimated to be anomalous. This is done through an infrastructure that promotes the closing of the loop from feature generation to anomaly detection through RPCA. We enable our user to choose subsets of the data through a web application and learn through visualization systems where problems are within their chosen local data slice. In this report, we explore both feature engineering techniques along with optimizing RPCA which ultimately lead to a generalized approach for detecting anomalies within a defined network architecture. i TABLE OF CONTENTS Page List of Tables v List of Figures vii 1 Introduction 1 1.1 Introduction .......................................... 1 2 VAST Dataset Challenge3 2.1 2011 VAST Dataset...................................... 3 2.2 Attacks in the VAST Dataset ................................ 6 2.3 Avoiding Data Snooping ................................... 7 2.4 Previous Work......................................... 8 3 Anomalies in Cyber Security9 3.1 Anomaly detection methods................................. 9 4 Feature Engineering 12 4.1 Feature Engineering Process ................................ 12 4.2 Feature Selection For a Dataset.............................. -
Ncircle IP360
VULNERABILITY MANAGEMENT TECHNOLOGY REPORT nCircle IP360 OCTOBER 2006 www.westcoastlabs.org 2 VULNERABILITY MANAGEMENT TECHNOLOGY REPORT CONTENTS nCircle IP360 nCircle, 101 Second Street, Suite 400, San Francisco, CA 94105 Phone: +1 (415) 625 5900 • Fax: +1 (415) 625 5982 Test Environment and Network ................................................................3 Test Reports and Assessments ................................................................4 Checkmark Certification – Standard and Premium ....................................5 Vulnerabilities..........................................................................................6 West Coast Labs Vulnerabilities Classification ..........................................7 The Product ............................................................................................8 Developments in the IP360 Technology ....................................................9 Test Report ............................................................................................10 Test Results ............................................................................................17 West Coast Labs Conclusion....................................................................18 Security Features Buyers Guide ..............................................................19 West Coast Labs, William Knox House, Britannic Way, Llandarcy, Swansea, SA10 6EL, UK. Tel : +44 1792 324000, Fax : +44 1792 324001. www.westcoastlabs.org VULNERABILITY MANAGEMENT TECHNOLOGY REPORT 3 TEST ENVIRONMENT -
Week 2: Networking Lab
Week 2: Networking Lab Topics: I. Netcat II. Nmap III. Wireshark Setup 1. SSH Client If you completed this step in the previous lab, you can skip this step. Once you are in the lab, you will need to get access to the Wi-Fi, and you will need a SSH client installed on your laptop. The lab Wi-Fi password will be up on the board, so you can use that to get access to the Wi-Fi. If you are on a Mac or have Linux installed, a SSH client should already be installed. If your laptop is running Windows, though, you will need to install putty (a windows SSH client). Its installer can be found at the below URL: https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html Now that everything is set up, SSH into the lab1 server. On Mac/Linux, type the following into your terminal ssh [email protected] Substitute your username for “user1” and it should work out On windows, start up putty, and enter the following into the “Host Name (or IP Address)” Field [email protected] -
Mac OS X Server
Mac OS X Server Version 10.4 Technology Overview August 2006 Technology Overview 2 Mac OS X Server Contents Page 3 Introduction Page 5 New in Version 10.4 Page 7 Operating System Fundamentals UNIX-Based Foundation 64-Bit Computing Advanced BSD Networking Architecture Robust Security Directory Integration High Availability Page 10 Integrated Management Tools Server Admin Workgroup Manager Page 14 Service Deployment and Administration Open Directory Server File and Print Services Mail Services Web Hosting Enterprise Applications Media Streaming iChat Server Software Update Server NetBoot and NetInstall Networking and VPN Distributed Computing Page 29 Product Details Page 31 Open Source Projects Page 35 Additional Resources Technology Overview 3 Mac OS X Server Introduction Mac OS X Server version 10.4 Tiger gives you everything you need to manage servers in a mixed-platform environment and to con gure, deploy, and manage powerful network services. Featuring the renowned Mac OS X interface, Mac OS X Server streamlines your management tasks with applications and utilities that are robust yet easy to use. Apple’s award-winning server software brings people and data together in innovative ways. Whether you want to empower users with instant messaging and blogging, gain greater control over email, reduce the cost and hassle of updating software, or build your own distributed supercomputer, Mac OS X Server v10.4 has the tools you need. The Universal release of Mac OS X Server runs on both Intel- and PowerPC-based The power and simplicity of Mac OS X Server are a re ection of Apple’s operating sys- Mac desktop and Xserve systems. -
TCP/IP Attack Lab 1
SEED Labs – TCP/IP Attack Lab 1 TCP/IP Attack Lab Copyright c 2006 - 2016 Wenliang Du, Syracuse University. The development of this document was partially funded by the National Science Foundation under Award No. 1303306 and 1318814. This work is licensed under a Creative Commons Attribution-NonCommercial- ShareAlike 4.0 International License. A human-readable summary of (and not a substitute for) the license is the following: You are free to copy and redistribute the material in any medium or format. You must give appropriate credit. If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original. You may not use the material for commercial purposes. 1 Lab Overview The learning objective of this lab is for students to gain first-hand experience on vulnerabilities, as well as on attacks against these vulnerabilities. Wise people learn from mistakes. In security education, we study mistakes that lead to software vulnerabilities. Studying mistakes from the past not only help students understand why systems are vulnerable, why a seemly-benign mistake can turn into a disaster, and why many security mechanisms are needed. More importantly, it also helps students learn the common patterns of vulnerabilities, so they can avoid making similar mistakes in the future. Moreover, using vulnerabilities as case studies, students can learn the principles of secure design, secure programming, and security testing. The vulnerabilities in the TCP/IP protocols represent a special genre of vulnerabilities in protocol de- signs and implementations; they provide an invaluable lesson as to why security should be designed in from the beginning, rather than being added as an afterthought. -
A Botnet Needle in a Virtual Haystack
ANGLIA RUSKIN UNIVERSITY FACULTY OF SCIENCE AND TECHNOLOGY A BOTNET NEEDLE IN A VIRTUAL HAYSTACK MARK GRAHAM A thesis in partial fulfilment of the requirements of Anglia Ruskin University for the degree of Doctor of Philosophy Submitted: June 2017 Acknowledgements This dissertation was prepared in part fulfilment of the requirements of the degree of Doctor of Philosophy under the supervision of Adrian Winckles and Dr Erika Sanchez-Velazquez at Anglia Ruskin University. This Ph.D. journey would not have been possible without the support that I have received from many people. In particular, I express huge gratitude to my first supervisor Adrian Winckles for his inspiration and support. Adrian has been a mentor to me for many years. A huge thank you also to my second supervisor Dr. Erika Sanchez for her encouragement and motivation. I also extend my thanks to Chris Holmes for his friendship and companionship during my years spent at Anglia Ruskin University. I gratefully acknowledge the funding I received for my Ph.D. from Anglia Ruskin University. Sincere thanks goes to my head of department, Professor Marcian Cirstea for his guidance and advice. May I express my thanks to other members of the department, especially my fellow Ph.D. students; Mohamed Kettouch and Dr. Arooj Fatima. This work is dedicated to Samantha who is always there to listen. i ANGLIA RUSKIN UNIVERSITY ABSTRACT FACULTY OF SCIENCE AND TECHNOLOGY DOCTOR OF PHILOSOPHY Abstract A BOTNET NEEDLE IN A VIRTUAL HAYSTACK MARK GRAHAM JUNE 2017 The Cloud Security Alliance’s 2015 Cloud Adoption Practices and Priorities Survey reports that 73% of global IT professionals cite security as the top challenge holding back cloud services adoption. -
List of TCP and UDP Port Numbers from Wikipedia, the Free Encyclopedia
List of TCP and UDP port numbers From Wikipedia, the free encyclopedia This is a list of Internet socket port numbers used by protocols of the transport layer of the Internet Protocol Suite for the establishment of host-to-host connectivity. Originally, port numbers were used by the Network Control Program (NCP) in the ARPANET for which two ports were required for half- duplex transmission. Later, the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) needed only one port for full- duplex, bidirectional traffic. The even-numbered ports were not used, and this resulted in some even numbers in the well-known port number /etc/services, a service name range being unassigned. The Stream Control Transmission Protocol database file on Unix-like operating (SCTP) and the Datagram Congestion Control Protocol (DCCP) also systems.[1][2][3][4] use port numbers. They usually use port numbers that match the services of the corresponding TCP or UDP implementation, if they exist. The Internet Assigned Numbers Authority (IANA) is responsible for maintaining the official assignments of port numbers for specific uses.[5] However, many unofficial uses of both well-known and registered port numbers occur in practice. Contents 1 Table legend 2 Well-known ports 3 Registered ports 4 Dynamic, private or ephemeral ports 5 See also 6 References 7 External links Table legend Official: Port is registered with IANA for the application.[5] Unofficial: Port is not registered with IANA for the application. Multiple use: Multiple applications are known to use this port. Well-known ports The port numbers in the range from 0 to 1023 are the well-known ports or system ports.[6] They are used by system processes that provide widely used types of network services.