Researchers find malware targeting Java HTTP servers
The malware has backdoor functionality and runs as a JavaServer Page (JSP) file
IDG News Service - Security researchers from antivirus vendor Trend Micro have uncovered a piece of backdoor-type malware that infects Java-based HTTP servers and allows attackers to execute malicious commands on the underlying systems.
The threat, known as BKDR_JAVAWAR.JG, comes in the form of a JavaServer Page (JSP), a type of Web page that can only be deployed and served from a specialized Web server with a Java servlet container, such as Apache Tomcat.
Once this page is deployed, the attacker can access it remotely and can use its functions to browse, upload, edit, delete, download or copy files from the infected system using a Web console interface. This is similar to the functionality provided by PHP-based backdoors, commonly known as PHP Web shells.
"Aside from gaining access to sensitive information, an attacker gains control of the infected system thru the backdoor and can carry out more malicious commands onto the vulnerable server," Trend Micro researchers said Thursday in a blog post.
This JSP backdoor can be installed by other malware already running on the system that hosts the Java-based HTTP server and Java servlet container or can be downloaded when browsing to malicious websites from such a system.
According to Trend Micro's technical notes, the malware targets systems running Windows 2000, Windows Server 2003, Windows XP, Windows Vista and Windows 7.
"Another possible attack scenario is when an attacker checks for websites powered by Apache Tomcat then attempts to access the Tomcat Web Application Manager," the Trend Micro researchers said. "Using a password cracking tool, cybercriminals are able to login and gain manager/administrative rights allowing the deployment of Web application archive (WAR) files packaged with the backdoor to the server."
In order to protect their servers from such threats, administrators should use strong passwords that cannot be easily cracked by using brute force tools, should deploy all security updates available for their systems and software and should avoid visiting unknown and untrusted websites, the Trend Micro researchers said.
- Best iPhone, iPad Business Apps for 2014
- 14 Tech Conventions You Should Attend in 2014
- 10 Desktop Apps to Power Your Windows PC
- How to Add New Job Skills Without Going Back to School
- Slideshow: 7 security mistakes people make with their mobile device
- iOS vs. Android: Which is more secure?
- 11 sure signs you've been hacked
- BlackBeard Case Study In this case study, learn how a business with 95% of revenues generated online was hit by DDoS attacks over a 6-month period,...
- Four Ways DNS Can Accelerate Business Growth This e-book describes how DNS has developed over the years to support business growth as new needs have emerged, for example, advanced traffic...
- Three Best Practices to Help Government Agencies Overcome BYOD Challenges This paper highlightschallenges facing government IT in a BYOD environment and discusses strategies for network preparation, ongoing support, and securing information to enable...
- Review: Box beats Dropbox - and all the rest - for business Box trumps Dropbox, Engyte, Citrix ShareFile, EMC Syncplicity, and OwnCloud with rich mix of file sync, file sharing, user management, deep reporting and...
- Four Myths of High-Productivity App Dev Debunked Debunk the main myths surrounding high-productivity application development and how both platforms have overcome them.
On-Demand Webcast: 7 Reasons to Choose VoIP
Thinking about a new phone system for your business?
Be sure to watch this informative webcast. Steve Strauss, small business columnist for USA...
All Network Security White Papers |