Original release date: May 20, 2013 | Last revised: May 21, 2013
[h=3]Systems Affected[/h]
[h=3]Description[/h] The compromised websites were modified to contain a hidden iframe referencing a JavaScript file on a dynamic-DNS host. The file returned from this site was identified as the Fiesta Exploit Kit. The exploit kit script uses one of several known vulnerabilities to attempt to download an executable:
[h=3]Impact[/h] The exploit kit, once successful, delivers and executes a known variant of the ZeroAccess Trojan. Additionally, according to open source reporting, the malware also downloads and installs a variant of FakeAV/Kazy malware.
The ZeroAccess Trojan attempts to beacon to one of two hardcoded command-and-control addresses, 194[.]165[.]17[.]3 and 209[.]68[.]32[.]176. The beaconing occurs using an HTTP GET using the Opera/10 user-agent string.
After beaconing, the malware then downloads a custom Microsoft Cabinet file and the malware uses port UDP/16464 to connect to the peer-to-peer network. This cabinet file contains several lists of IP addresses, as well as a fake flash installer.
[h=3]Solution[/h] Apply Updates
Monitor activity to the following IPs as a potential indicator of infection where permitted and practical:
This product is provided subject to this Notification and this Privacy & Use policy.
Syndicated from the United States Security Readiness Team (US-CERT). More...
[h=3]Systems Affected[/h]
- Microsoft Windows systems running Adobe Reader, Acrobat, or Oracle Java
[h=3]Description[/h] The compromised websites were modified to contain a hidden iframe referencing a JavaScript file on a dynamic-DNS host. The file returned from this site was identified as the Fiesta Exploit Kit. The exploit kit script uses one of several known vulnerabilities to attempt to download an executable:
- CVE-2009-0927: Stack-based buffer overflow in Adobe Reader and Adobe Acrobat
- CVE-2010-0188: Unspecified vulnerability in Adobe Reader and Acrobat
- CVE-2013-0422: Multiple vulnerabilities in Oracle Java 7 before Update 11
[h=3]Impact[/h] The exploit kit, once successful, delivers and executes a known variant of the ZeroAccess Trojan. Additionally, according to open source reporting, the malware also downloads and installs a variant of FakeAV/Kazy malware.
The ZeroAccess Trojan attempts to beacon to one of two hardcoded command-and-control addresses, 194[.]165[.]17[.]3 and 209[.]68[.]32[.]176. The beaconing occurs using an HTTP GET using the Opera/10 user-agent string.
After beaconing, the malware then downloads a custom Microsoft Cabinet file and the malware uses port UDP/16464 to connect to the peer-to-peer network. This cabinet file contains several lists of IP addresses, as well as a fake flash installer.
[h=3]Solution[/h] Apply Updates
- Adobe has provided updates for these vulnerabilities in Adobe Security Bulletin APSB09-04 and APSB10-07.
- Oracle has provided updates for this vulnerability in Oracle Security Alert for CVE-2013-0422.
Monitor activity to the following IPs as a potential indicator of infection where permitted and practical:
- 209.68.32.176
- 194.165.17.3
- WTOP and Federal News Radio Websites Back After Cyber Attack
- APSB09-04
- Stack-based buffer overflow in Adobe Reader and Adobe Acrobat
- APSB10-07
- Unspecified vulnerability in Adobe Reader and Acrobat
- Multiple vulnerabilities in Oracle Java 7 before Update 11
- Oracle Security Alert for CVE-2013-0422
- K.I.A. – WTOP.com, FedNewsRadio and Tech Blogger John Dvorak Blog Site Hijacked – Exploits Java and Adobe to Distribute Fake A/V
- Initial release
This product is provided subject to this Notification and this Privacy & Use policy.
Syndicated from the United States Security Readiness Team (US-CERT). More...
