Ways To Attack a Network: Ping The IP address gives the attacker’s Internet address. The numerical address like 212.214.172.81 does not reveal much. You can use PING to convert the address into a domain name in WINDOWS: The Domain Name Service (DNS) protocol reveals the matching domain name. PING stands for “Packet Internet Groper” and is delivered with practically every Internet compatible system, including all current Windows versions. Make sure you are logged on to the net. Open the DOS shell and enter the following PING command: Ping –a 123.123.12.1 Ping will search the domain name and reveal it. You will often have information on the provider the attacker uses e.g.: dialup21982.gateway123.provider.com Pinging is normally the first step involved in hacking the target. Ping uses ICMP (Internet Control Messaging Protocol) to determine whether the target host is reachable or not. Ping sends out ICMP Echo packets to the target host, if the target host is alive it would respond back with ICMP All the versions of Windows also contain the ping tool. To ping a remote host follow the procedure below. Click Start and then click Run. Now type ping <ip address or hostname> (For example: ping yahoo.com) This means that the attacker logged on using “provider.com”. Unfortunately, there are several IP addresses that cannot be converted into domain names. For more parameter that could be used with the ping command, go to DOS prompt and type ping /?. Ping Sweep If you are undetermined about your target and just want a live system, ping sweep is the solution for you. Ping sweep also uses ICMP to scan for live systems in the specified range of IP addresses. Though Ping sweep is similar to ping but reduces the time involved in pinging a range of IP addresses. Nmap (http://www.insecure.org) also contains an option
Tracert: Tracert is another interesting tool available to find more interesting information about a remote host. Tracert also uses ICMP. Tracer connects to the computer whose IP has been entered and reveals all stations starting from your Internet connection. Both the IP address as well as the domain name (if available) is displayed. If PING cannot reveal a name, Traceroute will possibly deliver the name of the last or second last station to the attacker, which may enable conclusions concerning the name of the provider used by the attacker and the region from which the attacks are coming.
Go to DOS prompt and type tracert <destination address> (For example: tracert yahoo.com). But there are some tools available like Visual Traceroute which help you even to find the geographical location of the routers involved. http://www.visualware.com/visualroute
Port Scanning:- After you have determined that your target system is alive the next important step would be to perform a port scan on the target system. There are a wide range of port scanners available for free. But many of them uses outdated techniques for port scanning which could be easily recognized by the network administrator. Personally I like to use Nmap (http://www.insecure.org) which has a wide range of options. You can download the NmapWin and its source code from: http://www.sourceforge.net/projects/nmapwin.
firewalls being used and a lot more.
Common ports: Below is a list of some common ports and the respective services running on the ports. 20 FTP data (File Transfer Protocol) 21 FTP (File Transfer Protocol) 22 SSH 23 Telnet 25 SMTP (Simple Mail Transfer Protocol) 53 DNS (Domain Name Service) 68 DHCP (Dynamic host Configuration Protocol) 79 Finger 80 HTTP 110 POP3 (Post Office Protocol, version 3) 137 NetBIOS-ns 138 NetBIOS-dgm 139 NetBIOS 143 IMAP (Internet Message Access Protocol) 161 SNMP (Simple Network Management Protocol) 194 IRC (Internet Relay Chat) 220 IMAP3 (Internet Message Access Protocol 3) 389 LDAP 443 SSL (Secure Socket Layer) 445 SMB (NetBIOS over TCP) Besides the above ports they are even some ports known as Trojan ports used by Trojans that allow remote access to that system.
Vulnerability Scanning: Every operating system or the services will have some vulnerabilities due to the Some of such vulnerability scanners include Shadow Security Scanner,Stealth HTTP Scanner, Nessus, etc. Visit http://www.securityfocus.com vulnerabilities and exploit codes of various operating systems. Packet storm security (http://www.packetstormsecurity.com) is also a nice pick.
|
Tools Descriptions: 1. Nmap I think everyone has heard of this one, recently evolved into the 4.x series. Nmap (Network Mapper) is a free open source utility for network exploration Can be used by beginners (-sT) or by pros alike (packet_trace). A very Get Nmap Here –http://www.insecure.org/nmap/download.html 2. Nessus Remote Security Scanner Recently went closed source, but is still essentially free. Works with a client- Nessus is the worlds most popular vulnerability scanner used in over 75,000 Get Nessus Here – http://www.nessus.org/download/ 3. John the Ripper Yes, JTR 1.7 was recently released! John the Ripper is a fast password cracker, currently available for many You can get JTR Here – http://www.openwall.com/john/ 4. Nikto Nikto is an Open Source (GPL) web server scanner which performs comprehensive Nikto is a good CGI scanner, there are some other tools that go well with Nikto Get Nikto Here – http://www.cirt.net/code/nikto.shtml 5. SuperScan Powerful TCP port scanner, pinger, resolver. SuperScan 4 is an update of the If you need an alternative for nmap on Windows with a decent interface, I Get SuperScan Here – http://www.foundstone.com/index.htm 6. p0f P0f v2 is a versatile passive OS fingerprinting tool. P0f can identify the – machines that connect to your box (SYN mode), Basically it can fingerprint anything, just by listening, it doesn’t make ANY Get p0f Here – http://lcamtuf.coredump.cx/p0f/p0f.shtml 7. Wireshark (Formely Ethereal) Wireshark is a GTK+-based network protocol analyzer, or sniffer, that lets you Works great on both Linux and Windows (with a GUI), easy to use and can Get Wireshark Here – http://www.wireshark.org/ 8. Yersinia Yersinia is a network tool designed to take advantage of some weakeness in The best Layer 2 kit there is. Get Yersinia Here – http://yersinia.sourceforge.net/ 9. Eraser Eraser is an advanced security tool (for Windows), which allows you to An excellent tool for keeping your data really safe, if you’ve deleted it..make Get Eraser Here – http://www.heidi.ie/eraser/download.php 10. PuTTY PuTTY is a free implementation of Telnet and SSH for Win32 and Unix platforms, Get PuTTY Here. –http://www.chiark.greenend.org.uk/~sgtatham/putty/ 11. LCP Main purpose of LCP program is user account passwords auditing and recovery in A good free alternative to L0phtcrack. LCP was briefly mentioned in our well read Rainbow Tables and RainbowCrack Get LCP Here –http://www.lcpsoft.com/english/download.htm 12. Cain and Abel My personal favourite for password cracking of any kind. Cain & Abel is a password recovery tool for Microsoft Operating Systems. It Get Cain and Abel Here – http://www.oxid.it/cain.html 13. Kismet Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion A good wireless tool as long as your card supports rfmon (look for an orinocco Get Kismet Here –http://www.kismetwireless.net/download.shtml 14. NetStumbler Yes a decent wireless tool for Windows! Sadly not as powerful as it’s Linux NetStumbler is a tool for Windows that allows you to detect Wireless Local Area Verify that your network is set up the way you intended. Get NetStumbler Here – http://www.stumbler.net/ 15. Hping To finish off, something a little more advanced if you want to test your TCP/IP hping is a command-line oriented TCP/IP packet assembler/analyzer. The Get hping Here – http://www.hping.org/ |