Blackhole exploit kit

The Blackhole exploit kit was, as of 2012, the most prevalent web threat, where 29% of all web threats detected by Sophos and 91% by AVG are due to this exploit kit. Its purpose is to deliver a malicious payload to a victim's computer. According to Trend Micro the majority of infections due to this exploit kit were done in a series of high volume spam runs. The kit incorporates tracking mechanisms so that people maintaining the kit know considerable information about the victims arriving at the kit's landing page. The information tracked includes the victim's country, operating system, browser and which piece of software on the victim's computer was exploited. These details are shown in the kit's user interface. Blackhole exploit kit was released on "Malwox", an underground Russian hacking forum. It made its first appearance in 2010. The supposedly Russian creators use the names "HodLuM" and "Paunch". It was reported on October 7, 2013 that "Paunch" had been arrested. Dmitry "Paunch" Fedotov was sentenced to seven years in a Russian penal colony on April 12, 2016. The customer licenses the Blackhole exploit kit from the authors and specifies various options to customize the kit. A potential victim loads a compromised web page or opens a malicious link in a spammed email. The compromised web page or malicious link in the spammed email sends the user to a Blackhole exploit kit server's landing page. This landing page contains obfuscated JavaScript that determines what is on the victim's computers and loads all exploits to which this computer is vulnerable and sometimes a Java applet tag that loads a Java Trojan horse. If there is an exploit that is usable, the exploit loads and executes a payload on the victim's computer and informs the Blackhole exploit kit server which exploit was used to load the payload. A typical defensive posture against this and other advanced malware includes, at a minimum, each of the following: Ensuring that the browser, browser's plugins, and operating system are up to date.