Instant Messenger RootKit Worm Tied to Worldwide Bot Network Controlled by Group in Middle East19 November 2005
Experts at FaceTime Security Labs(TM) , the threat research division of FaceTime Communications, identified and reported a new threat today related to the AOL Instant Messenger (AIM) "RootKit" worm they first identified on October 28, 2005. New research completed on the AOL rootkit worm confirms it acts as a back door for additional malware to be downloaded. The additional malware is capable of stealing usernames, passwords, and other personal information, and can be managed and controlled by a hacker through IRC communication sessions. FaceTime security researchers confirmed that computers infected with the lockx.exe rootkit file are being further compromised by a group in the Middle East. The attackers have compromised multiple servers hosted by ISPs worldwide to distribute the malware payload. The additional malware includes a "ster.exe" file that contains six additional files to provide the attacker with the capability to upload, download, and monitor the infected host PC. It has also been found that the malware has the potential to steal Microsoft Outlook Express email passwords and log keystrokes. The infected computers can also be used as a platform for launching attacks on Web sites or networks. Who is affected: All users who have been infected by the 'lockx.exe" rootkit or its variants are at most risk. Users of other messaging applications may also be affected by the ster.exe payload as it can be distributed by the lockx.exe infected PCs. All PC users can initiate a free online scan which can detect and disable the lockx.exe file by visiting: http://www.facetime.com. Additional Information: -- The lockx.exe rootkit and its variants connect to an IRC server, wher t is capable of receiving instructions through private, automate essages from an IRC operator. These messages can open a browse ession or install an unwanted application -- Over 17,000 users were found to be compromised on a single server, an ultiple servers exist worldwide -- Users may receive the instant message text consisting of:-- "evilday.us/pic####.com", or-- "how do I look[ipaddress]/~q8army/pic0023.com" which links them to one of multiple worldwide servers to deliver additional malware -- Additional malware includes self-extracting zip files including a"Ster.exe" file which utilizes the compromised machine to delive ultiple payloads that:-- Can steal your browser auto-complete data which may leak confidential personal information-- Gain access to Microsoft Outlook Express-- Open browsers to launch a denial of service attack, and/or-- Download additional malicious applications "We have delivered detailed research information to the U.S. federal authorities and are fully cooperating with their efforts," said Kailash Ambwani, president and CEO of FaceTime Communications. "This army of 'bots could be used for any number of malicious purposes including a denial of service (DoS) attack against targeted Web sites." FaceTime Customers Can Prevent This Threat FaceTime Enterprise Edition and IMAuditor customers can proactively block these malicious threats and prevent infections before they happen by blocking downloads of the specific executable files associated with the threat. FaceTime also recommends activating the Day Zero Defense System within IMAuditor 6.5. The system utilizes anomaly detection techniques to analyze multiple characteristics of IM-borne worms and other malicious code against normal behavior, and provides patent-pending protection against these threats without the need for traditional security signatures. FaceTime RTGuardian customers are automatically protected if they have auto update features enabled. FaceTime's X-Cleaner customers (formerly XBlock) should download the latest update and scan their PC to detect and remove lockx.exe files. About FaceTime Communications Founded in 1998, FaceTime Communications is the leading provider of security solutions for the management and control of greynet applications such as adware/spyware, instant messaging, P2P file sharing, web conferencing and instant voice. FaceTime Security Labs delivers the industry's first IMPact Index, which assesses "point-in-time" risks posed by viruses, worms and other malware propagating through greynet applications. FaceTime's award-winning solutions are used by over 500 customers, among them eight of the ten largest U.S. financial institutions. FaceTime supports and has strategic partnerships with all leading public and private IM network providers, including AOL, Google, Microsoft, Yahoo!, IBM, Bloomberg, Jabber and Reuters. For more information, visit http://www.facetime.com. FaceTime is headquartered in Foster City, California. For more information visit http://www.facetime.com or call 888-349-FACE.
Source: PR Newswire
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