US-CERT Current Activity - Denial-of-Service Malware Campaign

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US-CERT Current Activity

Denial-of-Service Malware Campaign

Original release date: January 24, 2012 at 5:35 pm
Last revised: January 24, 2012 at 5:35 pm

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.

Relevant Url(s):
<http://www.us-cert.gov/cas/tips/ST04-014.html>

<http://www.us-cert.gov/reading_room/DNS-recursion033006.pdf>

<http://www.us-cert.gov/cas/tips/ST05-006.html>

<http://www.us-cert.gov/reading_room/emailscams_0905.pdf>

<http://www.us-cert.gov/cas/tips/ST04-015.html>

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This entry is available at
http://www.us-cert.gov/current/index.html#anonymous_activities

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