Threat Encyclopedia

Browse the Fortiguard Labs extensive encyclopedia of threats. Click any title to view more details of the threat. Can't find what you are looking for? Try using the search bar above to find a specific threat description.

This indicates that a login attempt was made with a password longer than 64 bytes, a possible buffer overflow attack.

Sep 11, 2006
This indicates a potential attack against a buffer-overflow vulnerability in FTP server.File Transfer Protocol (FTP) is a way...

Sep 11, 2006
It indicates an attempt to exploit a remote PHP script inclusion vulnerability in phpBB Cash Mod module.Cash Mod module is a popular...

Sep 11, 2006
It indicates an attempt to exploit a remote command execution vulnerability in phpBB.It has been reported that the viewtopic.php...

Sep 11, 2006
It indicates a possible cross-site scripting attack attempt through a vulnerability in phpCMS.phpCMS is a free open source web...

Sep 11, 2006
ICMP Ping of death is a denial-of-service attack caused by an attacker deliberately sending an IP packet larger than the 65,536...

Sep 11, 2006
It indicates the system is likely under Port Scan attack.A port scan attack is one of the most common and most well understood...

Sep 11, 2006
This signature indicates a DNS protocol anomaly. It indicates detection of a malformed Domain Name Service (DNS) message.DNS is...

Sep 11, 2006
This indicates detection of a Domain Name Service (DNS) message with unexpected "type" values.DNS is a system that translates...

Sep 11, 2006
This indicates that a server reply with a line longer than 512 bytes was sent, an indication of a possible buffer overflow attempt.

Sep 11, 2006
This is one of the stealth scanning attacks. In TCP communication, SYN is used to start a connection, while FIN is used to end...

Sep 11, 2006
It indicates a large amount of SYN traffics are found from an IP address, the system is likely under SYN Flood attack. A SYN...

Sep 11, 2006
This indicates that a TCP packet with a bad checksum was detected.The calculation of the TCP checksum is done by including a pseudo-header...

Sep 11, 2006
It indicates abnormal large number of sessions were established to a single destination. Malicious activities, especially DoS...

Sep 11, 2006
This indicates that the system is under TCP Land attack.The TCP Land attack is a denial-of-service attack. Similar to a SYN flood...

Sep 11, 2006
It indicates abnormal large number of sessions were established by a single source. Malicious activities, especially DoS (Denial-of-Service)...

Sep 11, 2006
It indicates abnormal large number of sessions were established to a single destination. Malicious activities, especially DoS...

Sep 11, 2006
UDP is a connectionless protocol and it does not require any connection setup procedure to transfer data. A UDP flood attack involves...

Sep 11, 2006
It indicates that the system is under UDP Land attack.The UDP Land attack is a denial-of-service attack. An attacker can send...

Sep 11, 2006
Malicious activities, especially DoS (Denial-of-Service) attacks, usually make the target system increase its demand for bandwidth...

Sep 11, 2006