DoS Cyber Attack on a Financial Institution in the U.S.A - April 2012 Pulling Large Resources

April 25, 2012 02:00 PM


The customer, a major financial institution in the United States, was targeted with a multivulnerability DDoS attack by the Anonymous collective as part of a large attack campaign. This attack lasted for about nine hours.

On the same day, the customer notified ERT with the following information “We have received credible information that an Anonymous kind of attack is being targeted on (our site) tomorrow”; the attack started three hours later than planned.

Attack Vectors

There were four confirmed attack vectors in this attack campaign:

  • Attack Vector I: TCP SYN-FIN-RST Flood on TCP/80
  • Attack Vector II: Garbage Flood on UDP/53
  • Attack Vector III: Network Scans Attack
  • Vector IV: HTTP Floods

Additional Information

For additional information regarding the threat, read the full Attack Report.

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