How was the Slammer worm stopped?
The speed at which Slammer attacked was ultimately its downfall. By not throttling its infection routines, it crashed so many servers and networks that it ultimately slowed itself down. If it had been more judicious in its searching algorithms, then it’s likely that it could have infected many more computers.
How was SQL Slammer fixed?
Restoring order. The fix for Slammer was relatively simple; systems could be rebooted, and, if the patch had been installed, the problem was immediately fixed.
How big is SQL Slammer worm in bytes?
Because the SQL Slammer worm was so small in size, sometimes it was able to get through when legitimate traffic was not. Two key aspects contributed to SQL Slammer’s rapid propagation. The worm infected new hosts over the sessionless UDP protocol, and the entire worm (only 376 bytes) fits inside a single packet.
What is the CVE for SQL Slammer?
CVE-2002-0649 Detail.
Why was Slammer worm faster?
Slammer’s spread was considerably faster for several reasons, said the report. First, it was small. At just 376 bytes in size, the worm and required headers fit inside a 404-byte UDP (Universal Datagram Protocol) packet. Code Red was 4Kb in size while the Nimda worm was around 37Kb.
How did the SQL Slammer virus spread?
SQL Slammer spreads by scanning the Internet for vulnerable systems, and it is this scanning activity that has degraded service across the entire Internet. A patch issued by Microsoft last summer removes the buffer overflow vulnerability in SQL 2000 servers.
How does SQL Slammer spread?
What type of virus is SQL Slammer?
computer virus
The SQL slammer worm is a computer virus (technically, a computer worm) that caused a denial of service on some Internet hosts and dramatically slowed down general Internet traffic, starting at 05:30 UTC on January 25, 2003. It spread rapidly, infecting most of its 75,000 victims within 10 minutes.
How does SQL Slammer work?
Why is it called the SQL Slammer virus?
Techopedia Explains SQL Slammer Because the worm was able to fit into one packet, it could be propagated rapidly as computers fired off infected packets. As a result, it caused several denial-of-service attacks in 2002 and 2003.
What did Melissa virus do?
The Melissa virus, reportedly named by Smith for a stripper in Florida, started by taking over victims’ Microsoft Word program. It then used a macro to hijack their Microsoft Outlook email system and send messages to the first 50 addresses in their mailing lists.
What MS03 026?
MS03-026: Microsoft RPC Interface Buffer Overrun (823980) (uncredentialed check)
What MS09 001?
MS09-001: Microsoft Windows SMB Vulnerabilities Remote Code Execution (958687) (uncredentialed check)
What type of virus was Melissa?
macro virus
Melissa is a “macro virus” that can affect users of Microsoft’s Word 97 or Word 2000. Macro viruses are computer viruses that use an application’s own macro programming language to reproduce themselves. Macro viruses can inflict damage to the document or to other computer software.
What did the ILOVEYOU virus do?
ILOVEYOU could — and did — destroy all kinds of files including photographs, audio files and documents. Affected users who didn’t have backup copies lost them permanently. In March 1999, similar to ILOVEYOU, the Melissa virus also replicated itself by using Outlook address books.
Is Conficker still a threat?
Still, in the past few years Conficker detections have held steadily at well over 20,000 per month, indicating it is still highly active. No other malware has displayed this sort of longevity at this scale, says Jon Clay, director of global threat communications for Trend Micro.
What is Msrpc service?
MSRPC is an interprocess communication (IPC) mechanism that allows client/server software communcation. That process can be on the same computer, on the local network (LAN), or across the Internet. Its purpose is to provide a common interface between applications.
Why is it called Melissa virus?
What are the Snort rule options?
This is referred to as the rule options. This part of the Snort rule is comprised of a couplet with a keyword, a colon, and the argument. msg – This is the message that’s sent to the sysadmin if the rule is triggered.
How do I Turn Off Snort in Linux?
Wait until you get the command shell and look at Snort output. You should see alerts generated. This time we see two alerts instead of four because we included the hex representation of the “>” symbol in the content, making the rule more specific. Press Ctrl+C to stop Snort.
How to use Wireshark to capture snort attacks in Linux?
Enter sudo wireshark into your terminal shell. In Wireshark, go to File → Open and browse to /var/log/snort. At this point we will have several snort.log.* files there. Select the one that was modified most recently and click Open. You should see quite a few packets captured. We need to find the ones related to our simulated attack.
What is the ICMP rule ID for Snort?
msg:”ICMP test” – Snort will include this message with the alert. sid:1000001 – Snort rule ID. Remember all numbers smaller than 1,000,000 are reserved; this is why we are starting with 1,000,001. (You may use any number, as long as it’s greater than 1,000,000.)
https://www.youtube.com/watch?v=Zbd4Vk9LO3g