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Application-Level Denial of Service

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Smart/algorithmic denial of service

Related Concepts

Availability; DoS Detection; DoS Pushback; Jamming Attack Defense; Network Bandwidth DoS; Overlay-Based DoS Defenses; Packet-Dropping Attack; SYN Cookie Defense; SYN Flood Attack; Trust Management


Application-level denial of service (DoS) attacks are a class of emerging DoS attacks that target higher layers in an application stack as against network layer attacks. Application-level DoS attacks essentially mimic flash crowds with the goal of severely crippling an electronic service and evading traditional DoS filters by morphing the attack requests so that they are nearly indistinguishable from the legitimate requests.


DoS attacks attempt to render an electronic service unavailable to its intended users. Traditional DoS attacks typically refer to flooding-based attacks that attempt to inundate a Web server with numerous requests with the goal of exhausting the server’s computational or networking...

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  • DOI: 10.1007/978-1-4419-5906-5_262
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Recommended Reading

  1. Srivatsa M, Iyengar A, Yin J, Liu L (2008) Mitigating application level denial of service attacks on web servers: a client transparent approach. ACM Trans Web 2(3)

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  2. Crosby SA, Wallach DS (2003) Denial of service via algorithmic complexity attacks. In USENIX security symposium

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  3. CERT (2004) Incident Note IN-2004–01 W32/Novarg.A Virus

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  4. Leyden J (2003) East European gangs in online protection racket

  5. Jung J, Krishnamurthy B, Rabinovich M (2002) Flash crowds and denial of service attacks: characterization and implications for CDNs and web sites. In World Wide Web conference (WWW)

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  6. Kandula S, Katabi D, Jacob M, Berger A (2005) Botz-4-sale: surviving organized DDoS attacks that mimic flash crowds. In Networks Systems Design and Implementation (NSDI)

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  7. Poulsen K (2004) FBI busts alleged DDoS mafia.

  8. Bicakci K, Crispo B, Tanenbaum AS (2006) Reverse SSL: improved server performance and DoS resistance for SSL handshakes. In CRYPTO

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Srivatsa, M., Iyengar, A. (2011). Application-Level Denial of Service. In: van Tilborg, H.C.A., Jajodia, S. (eds) Encyclopedia of Cryptography and Security. Springer, Boston, MA.

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