what is DDOS?

 I recently read this article saying that Microsoft defended against a 3.47TB DDOS attack. This fact makes me ask what is DDOS?

A Denial-of-Service(Dos) is an attack meant to shut down a network, making it inaccessible to intended users. It floods the targets with traffic and deprives the main users from accessing the resource.

 

There are two general methods of DoS attacks: flooding services or crashing services. Flooding- the flood occurs with a great deal of traffic for the server to buffer 

Crashing/Buffering - In this type of exploit, the adversary drives more traffic to a network address than the system is capable of handling. This causes the machine to consume all available buffers, or memory storage regions that temporarily hold data while it is being transferred within the network

Modern security technology is capable of defending against these attacks, we can cite Microsoft records as an example.


https://arstechnica.com/information-technology/2022/01/microsoft-fends-off-record-breaking-3-47-tbps-ddos-attack/


https://www.crowdstrike.com/cybersecurity-101/denial-of-service-dos-attacks/

Comments

Post a Comment

Popular posts from this blog

Blockchain Security Issues

Image
  Security is one of the advantages that Bitcoin and its derivatives (e.g., Ethereum, Ripple, etc.) claim to offer compared to other digital payments. In fact, disrupting the Bitcoin network and other blockchain technologies is nearly impossible due to its advanced architecture and complexity. However,hackers are still eager to exploit some workarounds for t h eir ill intension https://onlinedegrees.und.edu/blog/5-blockchain-security-issues/
Read more

Qlocker

Image
     A massive ransomware campaign is underway against QNAP devices around the world, and users are finding that their files are now stored in password-protected 7zip archives.The ransomware, called Qlocker, began targeting QNAP devices.QNAP warned that the attackers were exploiting the CVE-2021-28799 hard-coded credentials vulnerability in the HBS 3 Hybrid Backup Sync app to hack into users' devices and lock their files.  https://petri.com/qnap-nas-devices-being-targeted-by-qlocker-ransomware-again
Read more

SunCrypt

Image
Ransomware operates in organized businesses, and some developers of ransomware have expanded into franchises. One such franchise family member refers to themselves as SunC rypt. SunCrypt was one of the early pioneers of triple extortion,, including file encryption, the threat of releasing stolen data, and a DDoS (distributed denial of service) attack against non-paying victims. SunCrypt often uses the PowerShell loader for delivery and deployment. https://thecyberwire.com/newsletters/privacy-briefing/4/61
Read more