STOP SLOWLORIS ATTACK SOFTWARE

Good examples of this are Georgia and Estonia that were targeted in 2007. Sometimes, political agendas are the reasons behind the attacks. Also, there are DDoS for hire services that take on the rivalвЂ™s website intending to bring it down. The gaming industry online has been a regular victim of DDoS attacks for a while. There are different reasons why DDoS attacks are launched.

STOP SLOWLORIS ATTACK SOFTWARE

The software is capable of suppressing the creation of a log file during an attack which makes it possible to catch unmonitored webservers off-guard and slip past without creating red flags in the entries of the log file. Slowloris software can be manipulated to send different host headers and separately keep logs for each of the hosts if the target is a virtual host. As a result, the software has become the go-to tool for hacktivism.

This makes it possible for a single computer to bring down a whole high-profile server. Unlike other types of DDoS attacks that send malformed packets or malicious content, Slowloris sends incomplete HTTP requests which allow it to escape conventional scanners and detection systems.ДЄs stated earlier, it does not cost the attackers much as Slowloris attacks utilize minimal bandwidth. The attack can be mitigated in the case of high-volume websites, only if their early detection and legitimate sessions are reinitiated. It waits for the release of sockets by legitimate requests and consumes them one after the other, even when it is a high-volume website/web application. Slowloris software is developed for efficacy and stealth, and it plays the вЂslow and lowвЂ™ game. Why Slowloris attacks are very dangerous and effective. The distinguishing attribute of Slowloris is its ability to cause a lot of damage while consuming very little bandwidth. The moment all available threads are being used, the server will not be able to respond to extra requests made from regular traffic, leading to denial-of-service.

The server targeted is never able to release any of the open incomplete connections while waiting for the ending of the request.

To prevent the timing out of the target from the connections, the attacker intermittently sends partial request headers to the target to keep the request alive.

To work efficiently, if a connection is taking too long, the server will timeout the excessive long connection, freeing up the thread for the next request.

The target then opens a thread for every incoming request, to close the thread the moment the connection is completed.

First, the attacker opens several different connections to the server targeted server by sending multiple incomplete HTTP request headers.

The implication of this is that the attack can get unmonitored servers off-guard, without any red flags appearing in the entries of the log file.ДЄ Slowloris attack takes place in 4 steps: More importantly, during an attack, Slowloris can be configured to suppress the creation of a log file. Made for stealth and efficacy, Slowloris can be redesigned to send different host headers if a virtual host is a target, and logs are kept separately for every virtual host. When attacked sockets time out, Slowloris usually initiates the connections again, continuing to overwhelm the webserver until it is resolved. If unmitigated or undetected, Slowloris attacks can also go on for long periods. But at the end of the day, if the attack is unresolved, Slowloris-though slow like a tortoise-will eventually win the race. The process can be further delayed if legitimate sessions are initiated again. A Slowloris attack has to wait for the release of sockets by legitimate requests before consuming them one after the other.ДЇor a website with a high volume, it may take some time. Getting its name from a type of slow-moving Asian primate, Slowloris gets the job done by moving slowly but steadily. Eventually, the targeted serverвЂ™s highest simultaneous connection pool gets filled, and extra connection attempts are denied.Д«y sending incomplete, instead of malformed packets, Slowloris can conveniently slip by conventional Intrusion Detection systems. The servers that are attacked open further and connectivity open, waiting for the completion of each attack request.ДЄt some intervals, the Slowloris sends successive HTTP headers for every request, but never actually finishes the request. It does this by sending partial HTTP requests nonstop, with none completed. Slowloris operates by opening different connections to the targeted web server and leaving them open as long as needed.

Stop slowloris attack