Forbidden Web

Jan 24, 2012

Denial-of-Service Malware Campaign
US-CERT is aware of public reports of ongoing distributed denial-of-service attacks against entities in the government and private sector. According to the reports, these attacks are being attributed to the hacker group Anonymous.

US-CERT encourages users and administrators to do the following to reduce the risk associated with this and other malware campaigns:

Do not open attachments in email messages from unknown sources.
Install anti-virus software and keep virus signatures files up to date.
Refer to the Recognizing and Avoiding Email Scams (pdf) document for more information on avoiding email scams.
Refer to the Avoiding Social Engineering and Phishing Attacks document for information on social engineering attacks.
Refer to the Recovering from Viruses, Worms, and Trojan Horses document for additional information on how to recover from malware.
Refer to the Continuing Denial of Service Threats Posed by DNS recursion (v2.0) (pdf) document and Understanding Denial-of-Service Attacks document for additional information on denial-of-service attacks.

US-CERT will provide additional information as it becomes available.