PWS-Duqu, also detected as Duqu, PWS-Duqu.dr and PWS-Duqu!rootkit, is a backdoor Trojan and successor of the most complicated and dangerous attack of this decade named Stuxnet. Basically, Duqu is based on Stuxnet, and some of its parts are almost identical to Stuxnet, but have a totally different aim. In contrary to Stuxnet, PWS-Duqu does not contain PLC functionality like Stuxnet. Instead, the code which is spread via exploitation, installs drivers and encrypted DLLs that operate very similar to the original Stuxnet code. The driver's code, encryption keys and methods used for the PWS-Duqu's injection attack are very similar to Stuxnet. The aim of Duqu is to collect intelligence data and assets from entities, such as industrial control system manufacturers, in order to more easily execute a future attack against another third-party. Attackers are looking for information such as design documents that could help them start a future attack on an industrial control facility. Duqu does not involve any code associated with industrial control systems and does not replicate itself. Duqu is used to install another infostealer that could record keystrokes and steal other targeted computer system's information. Duqu uses HTTP and HTTPS to communicate with a command-and-control (C&C) server that in the course of writing is still functional.
PWS-Duqu, also known as Duqu, has an interesting way of stealing data. Duqu utilizes a JPG image file to transmit stolen information from an infected system. Duqu is known to send an http request to a server identified as 184.108.40.206 (site URL: canoyraqomez.rapidns.com) and returns a blank JPG image. The image file, if properly access, will return a photo of a NASA galaxy image. Contained in the image is the stolen data that can easily be transmitted to a remote location by Duqu. It is highly suggestive that Duqu be removed before this is able to happen.
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Security Doesn't Let You Download SpyHunter or Access the Internet?Solutions: Your computer may have malware hiding in memory that prevents any program, including SpyHunter, from executing on your computer. Follow to download SpyHunter and gain access to the Internet:
- Use an alternative browser. Malware may disable your browser. If you're using IE, for example, and having problems downloading SpyHunter, you should open Firefox, Chrome or Safari browser instead.
- Use a removable media. Download SpyHunter on another clean computer, burn it to a USB flash drive, DVD/CD, or any preferred removable media, then install it on your infected computer and run SpyHunter's malware scanner.
- Start Windows in Safe Mode. If you can not access your Window's desktop, reboot your computer in "Safe Mode with Networking" and install SpyHunter in Safe Mode.
- IE Users: Disable proxy server for Internet Explorer to browse the web with Internet Explorer or update your anti-spyware program. Malware modifies your Windows settings to use a proxy server to prevent you from browsing the web with IE.