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ATLAS® Intelligence Feed
ATLAS® Intelligence Feed

... The ATLAS Intelligence Feed from Arbor Networks arms customers with policies and countermeasures that enable them to quickly address attacks as part of an advanced threat. The ATLAS Intelligence Feed is a service of the Arbor Security Engineering and Response Team (ASERT) and enables customers to di ...
Security+ Guide to Network Security Fundamentals
Security+ Guide to Network Security Fundamentals

... IDS analyzes information it gathers and compares it to a database of known attacks, which are identified by ...
PowerPoint-10b - Community College of Rhode Island
PowerPoint-10b - Community College of Rhode Island

... • Wireless Network tab properties establishes what networks and the order -Scans for SSID in list • If it can not find “preferred network” will continue to scan • A rogue AP has heard the SSID scan list and configures as one of the unsecured SSIDs • Vitim Windows client connects to rogue AP • Soluti ...
Bots and Botnets - IT Services Technical Notes
Bots and Botnets - IT Services Technical Notes

... backdoors installed on remote hosts. Here's the list of scanner capabilities: * WebDav (port 80) * NetBios (port 139) * NTPass (port 445) * DCom (ports 135, 1025) * DCom2 (port 135) * MSSQL (port 1433) * LSASS (port 445) * UPNP (port 5000) * Optix backdoor (port 3140) * Bagle backdoor (port 2745) * ...
Motivation behind botnets
Motivation behind botnets

... “The Storm worm botnet has grown so massive and far-reaching that it easily overpowers the world's top supercomputers…If you add up all 500 of the top supercomputers, it blows them all away with just 2 million of its machines. It's very frightening that criminals have access to that much computing p ...
botnet
botnet

...  Use high port numbers to avoid detection by security devices and gateways ...
FAKEM RAT: Malware Disguised as Windows Messenger and
FAKEM RAT: Malware Disguised as Windows Messenger and

... The perpetrators of targeted attacks aim to maintain persistent presence in a target network in order to extract sensitive data when needed. To maintain persistent presence, attackers seek to blend in with normal network traffic and use ports that are typically allowed by firewalls. As a result, man ...
WP- Evolution of Network Security
WP- Evolution of Network Security

... The core technologies that operate the Internet are no more secure now than they were back in the trusting days when the Internet was first developed. However, now the Internet has grown to massive proportions and has millions of people connected to it, many of whom are highly untrustworthy. Online ...
Cutting Edge VoIP Security Issues Color
Cutting Edge VoIP Security Issues Color

... VoIP systems rely heavily on supporting services such as DHCP, DNS, TFTP, etc. DHCP exhaustion is an example, where a hacker uses up all the IP addresses, denying service to VoIP phones DNS cache poisoning involves tricking a DNS server into using a fake DNS response ...
TEL2813/IS2820 Security Management
TEL2813/IS2820 Security Management

... All Internet Control Message Protocol (ICMP) data should be denied Telnet (terminal emulation) access to all internal servers from the public networks should be blocked When Web services are offered outside the firewall, HTTP traffic should be handled by some form of proxy access or DMZ architecture ...
Computer Security: Principles and Practice, 1/e
Computer Security: Principles and Practice, 1/e

... o Often sufficient for use as a component of a distributed IDS to warn of imminent attack ...
spear-phishing attacks
spear-phishing attacks

... Some of the most notorious cyber crimes in recent history — such as the attacks on major banks, media companies and even security firms — started with just one person clicking on a spear-phishing email. Spear phishing is on the rise because it works. Traditional security defenses simply do not detec ...
1 | I.C.T.C. “International Computer Training Center” www.ictc.gr info
1 | I.C.T.C. “International Computer Training Center” www.ictc.gr info

... This class will immerse the student into an interactive environment where they will be shown how to scan, test, hack and secure their own systems. Students then learn how intruders escalate privileges and what steps can be taken to secure a system. Who Should Attend This course will significantly be ...
Chapter 4
Chapter 4

... • Access attacks exploit vulnerabilities in authentication, FTP, and web to gain entry to accounts, confidential, and ...
computer security - GH Raisoni Polytechnic, Nagpur
computer security - GH Raisoni Polytechnic, Nagpur

...  This is possible in TCP/IP because of the friendly assumptions behind the protocols.  When a packet is sent from one system to another, it includes not only the destination IP address but the source IP address.  The user is supposed to fill in the source with your own address, but there is nothi ...
Bishop: Chapter 26 Network Security
Bishop: Chapter 26 Network Security

... The attacker initiates large number of TCP SYN packets and refuses to execute the 3rd part of the TCP three-way handshake for those packets If the packets come from multiple sources (the attacking machines) but have the same destination (the victim machine)  ...
Top 100 Network Security Tools
Top 100 Network Security Tools

... features, including a rich display filter language and the ability to view the reconstructed stream of a TCP session. It also supports hundreds of protocols and media types. One word of caution is that Ethereal has suffered from dozens of remotely exploitable security holes, so stay up-to-date and b ...
Intrusion Detection
Intrusion Detection

... Here the main motivation is to make money Now the common threat is “organized groups of hackers”  May ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)

... 4. Authentication: The process of verifying that users are who they assert to be when logging onto a system.(the sender and receiver can confirm each others identity and the origin /destination of the information). 5. Authorization: The process of allowing only authorized user‟s access to sensitive ...
Assessing Network Security for Northwind Traders What
Assessing Network Security for Northwind Traders What

... Start by scanning slowly, a few ports at a time To avoid detection, try the same port across several hosts Run scans from a number of different systems, optimally from different networks ...
Internet Security
Internet Security

...  attack authentication system to gain access Application vulnerability  attack application program to inject foreign code Virus/Trojan Horse  attack OS with a malicious program (malware) Social Engineering  attack organization to obtain authentication or other information ...
Topic 2: Lesson 3 Intro to Firewalls
Topic 2: Lesson 3 Intro to Firewalls

... keep outsiders from breaking in keep insiders from exposing valuable data enable secure communication between networks Firewall protects both direction Firewall can proxy an Internet service block services known to be problematic ...
CH09-CompSec2e - MCST-CS
CH09-CompSec2e - MCST-CS

...  also called an application proxy  acts as a relay of application-level traffic  user contacts gateway using a TCP/IP application  user is authenticated  gateway contacts application on remote host and relays TCP segments between server and user  must have proxy code for each application  may ...
Computer Security: Principles and Practice, 1/e
Computer Security: Principles and Practice, 1/e

... – Provides a less realistic target – Often sufficient for use as a component of a distributed IDS to warn of imminent attack ...
CSCI6268L37
CSCI6268L37

... – Routing, basic protocols (IP, UDP, TCP, Eth, ARP, DHCP, DNS, ICMP, BGP), packet formatting – IP addresses, NAT boxes ...
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Denial-of-service attack



In computing, a denial-of-service (DoS) attack is an attempt to make a machine or network resource unavailable to its intended users, such as to temporarily or indefinitely interrupt or suspend services of a host connected to the Internet. A distributed denial-of-service (DDoS) is where the attack source is more than one–and often thousands–of unique IP addresses.Criminal perpetrators of DoS attacks often target sites or services hosted on high-profile web servers such as banks, credit card payment gateways; but motives of revenge, blackmail or activism can be behind other attacks.
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